SRTechnology Catalogue and RF Bible

Photo Drawing Divider Arrestor DC Block91 DC BLOCK ARRESTOR DIVIDER ATTENUATOR TERMINATION FILTER

Filter Termination AttenuatorDuplexer PN : R04-M1732-01 Feature - Duplexer for PCS. - Resonator used as DR. - High power repeater application by minimizing Insertion Loss & Pass Band Ripple.Specification ITEMS Specification Pass Band Frequency Low High Insertion Loss(Max.) Return Loss (Min.) 1710 ~ 1755 MHz 1805 ~ 1850 MHzPass Band Ripple(Max.) 0.8 dB Isolation (Min.) 20 dB Coupling ValueOperating Temperature 0.4dB 1710 ~ 1755 MHz 55 dBc 1805 ~ 1850 MHz 1851.875 ~ 1858.125 MHz 30 ± 1 dB -40℃ ~ 65 ℃ Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!92 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR 142.0 38.8 DIVIDER 108.0 ARRESTOR 102.0 19.0 24.0 DC BLOCK 93

Filter Termination AttenuatorDuplexer PN : R04-M1444-01 Feature - The filter for Optical repeater in Brazil. - 3dB Bandwidth spec as 28MHz Band width. - Excellent Isolation. - D esigned for great dampproofing and withstanding high temperatures or sudden changes in temperature.Specification ITEMS Specification Pass Band Frequency Low High Return Loss (VSWR) 1437 ~ 1452.5 MHz 1502.5 ～ 1518 MHz Insertion Loss Pass Band Ripple 20 dB min (1.22:1) 20 dB min (1.22:1) Isolation 1.3dB max 1.3dB max 3dB Bandwidth 0.5dB max 0.5dB max Impedance 97dB min 97dB min Connector(All Ports) @ 1502.5 ～ 1518 MHz @ 1437 ~ 1452.5 MHz Handling Power 28MHz max.Operating Temperature Dimensions 50Ω SMA(F) 20 Watts(Avr.) -20℃ ~ 60℃ W145×D85×H50 mm Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!94 www.srtechnology.com

Photo Drawing Divider Arrestor DC Block95 DC BLOCK ARRESTOR DIVIDER ATTENUATOR TERMINATION FILTER

Filter Termination AttenuatorDuplexer PN : R04-M0906-01 Feature - Duplexer for GSM. - Excellent Insertion Loss and Pass Band Ripple. - Outstanding Isolation for Tx and Rx. - Over 60Watt high power repeater application by using N connector.Specification ITEMS Specification Pass Band Frequency Low High Insertion Loss(Max.) Return Loss (Min.) 903 ~ 909 MHz 948 ~ 954 MHzPass Band Ripple(Max.) 1.0 dB 1.3 dB Isolation (Min.) 20 dB Dimensions (W×H×D)In/Out Port Connectors 0.4dBOperating Temperature 903 ~ 909 MHz 60 dBc 948 ~ 954 MHz 68 dBc 58.0 × 72.0 × 162.0 mm N(F) / N(F) -30℃~ 70℃ Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!96 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR Ø4.2 10.0 58.0 34.0 DIVIDER 152.0 72.0 ARRESTOR 142.0 48.0 3.0 48.0 DC BLOCK 162.0 97

Filter Termination AttenuatorDuplexer PN : R04-M0902-01 Feature - Duplexer for GSM. - Excellent Insertion Loss and Pass Band Ripple. - No Attenuation spec.Specification ITEMS Low Specification High 890 ~ 915 MHz 935 ~ 960 MHz Pass Band Frequency 0.8dB Insertion Loss(Max.) 890 ~ 915 MHz 20 dB 50 dBc Return Loss (Min.) 935 ~ 960 MHz 0.4dBPass Band Ripple(Max.) -40℃ ~ 65℃ Isolation (Min.)Operating Temperature Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!98 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR 180.0 35.0 DIVIDER 64.0 29.0 ARRESTOR 64.8 DC BLOCK 40.0 99

Filter Termination AttenuatorDuplexer PN : R04-M0847-01 Feature - Duplexer for CDMA. - Excellent Isolation for Tx and Rx. - Allowed to put additional module on the top of the filter. - Customized connector port location for the convenience of repeater design.Specification ITEMS Specification Pass Band Frequency Insertion Loss(Max.) Low High Return Loss (Min.) 845 ~ 849 MHz 890 ~ 894 MHzPass Band Ripple(Max.) 1.5 dB 1.4dB Attenuation (Min.) 20 dB Isolation (Min.) Dimensions (W×H×D) 0.65dBIn/Out Port ConnectorsOperating Temperature 843 MHz 25 dBc 851 MHz 35 dBc 896 MHz 25 dBc 845 ~ 849 MHz 80 dBc 890 ~ 894 MHz 109 dBc 202.0 × 91.6 × 246.0 mm N(F) / N(F) -10℃ ~ 70℃ Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!100 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR 5.0 5.0 52.0 3.0 3.0 69.0 DIVIDER 140.0 202.0 96.0 5.0 3.0 5-Ø4.2 THRU 5.0 5.0 5.0 ARRESTOR 126.0 91.6 93.0 52.0 DC BLOCK 246.0 101

Filter Termination AttenuatorDuplexer PN : R04-M0836-02 Feature - Duplexer for CDMA. - Installed in Optical Repeater. - Outstanding Insertion Loss. - Over 80Watt high power repeater application by minimizing Insertion Loss.Specification ITEMS Specification Pass Band Frequency Low High Return Loss (Min.) Insertion Loss(Max.) 824 ~ 849 MHz 869 ~ 894 MHzPass Band Ripple(Max.) 20 dB Isolation (Min.) 0.5dB Dimensions (W×H×D) 0.3dBIn/Out Port ConnectorsOperating Temperature 824 ~ 849 MHz 60 dBc 869 ~ 894 MHz 193.0 × 86.7 × 411.0 mm N(F) / N(F) 0℃ ~ 50 ℃ Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!102 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR DIVIDER 193.0 93.5 411.0 41.5 ARRESTOR 86.6 DC BLOCK 103

Filter Termination AttenuatorDuplexer PN : R04-M0836-03 Feature - Duplexer for CDMA application. - 70dBc Isolation for Tx and Rx. Specification ITEMS Low Specification High 824 ~ 849 MHz 869 ~ 894 MHz Pass Band Frequency 1.5dB Insertion Loss(Max.) 824 ~ 849 MHz 20 dB 70 dBc Return Loss (Min.) 869 ~ 894 MHz 0.7dBPass Band Ripple(Max.) -15℃ ~ 45℃ Isolation (Min.)Operating Temperature Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!104 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR DIVIDER 82.0 45.0 59.8 36.0 36.0 ARRESTOR 100.0 DC BLOCK 105

Filter Termination AttenuatorDuplexer PN : R04-M0836-04 Feature - Duplexer for CDMA. - Excellent Insertion loss. - 70dBc Isolation at Rx band. - Allowed to put additional module on the top of the filter. Specification Specification ITEMS Low High Pass Band Frequency 824 ~ 849 MHz 869 ~ 894 MHz Insertion Loss(Max.) Return Loss (Min.) 1.0dBPass Band Ripple(Max.) 20 dB Isolation (Min.) 0.5dB Dimensions (W×H×D)In/Out Port Connectors 824 ~ 849 MHz 75 dBcOperating Temperature 869 ~ 894 MHz 35 dBc 150.0 × 59.6 × 214.0 mm N(F) / N(F) 0℃ ~ 60 ℃ Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!106 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR 150.0 DIVIDER 214.0 ARRESTOR 29.0 52.0 55.0 59.6 DC BLOCK 27.5 107

Filter Termination AttenuatorDuplexer PN : R04-M0836-05 Feature - Duplexer for CDMA. - 80dBc Isolation for Tx and Rx. - Centralized antenna & output port for easy arrangement of modules. Specification ITEMS Low Specification High 824 ~ 849 MHz 869 ~ 894 MHz Pass Band Frequency 1.3dB Insertion Loss(Max.) 824 ~ 849 MHz 20 dB 80 dBc Return Loss (Min.) 869 ~ 894 MHz 0.6dBPass Band Ripple(Max.) 0℃ ~ 70 ℃ Isolation (Min.)Operating Temperature Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!108 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR 140.0 DIVIDER 96.0 ARRESTOR 34.5 280.0 44.0 62.8 DC BLOCK 109

Filter Termination AttenuatorDuplexer PN : R04-M0829-01 Feature - Duplexer for CDMA. - Outstanding Insertion Loss. - Designed for precise Attenuation spec.Specification ITEMS SpecificationPass Band FrequencyReturn Loss (VSWR) Low High Insertion Loss 824 ~ 835 MHz 845 ~ 849 MHz Pass Band Ripple 20 dB min (1.22:1) 20 dB min (1.22:1) Attenuation (Min.) 1.2dB max 1.4dB max Impedance Connector 0.5dB max 0.5dB max Dimensions 55dBc @ 810 MHz 20dBc @ 821 MHz 25dBc @ 838 MHz 25dBc @ 843 MHz 35dBc @ 851 MHz 55dBc @ 860 MHz 65dBc @ 869 MHz 50Ω SMA(F) / N(F) W198×D330×H98 mm Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!110 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR 97.8 DIVIDER 48.9 330.0 198.0 96.0 ARRESTOR DC BLOCK 111

Filter Termination AttenuatorFilter ModulePN : R03-M1932-01 Feature - Filter Module for ICS repeater in Japan. - All Connector ports are adjecent location near bottom. - Group Delay focused.Specification ITEMS SPECIFICATIONS(DONOR) SPECIFICATIONS(SERVICE) Frequency Low High Low High ReturnLoss Insertion Loss 1925.625 ~ 2115.625 ～ 1925.625 ~ 2115.625 ～ Pass Band Ripple 1939.325 MHz 2129.375 MHz 1939.325 MHz 2129.375 MHz Attenuation 20 dB min Isolation 3.5dB max 1.5dB max 1.5dB max Coupling Value 1.6dB max 0.5dB max 0.5dB max Harmonics 55dB min @ 8dB min @ 30dB min @ Group Delay under 1919.6 Handling Power 1919.45 MHz under 2110 MHz MHz Impedance Connector(All Ports) 55dB min @ 30dB min @Operating Temperature over 1945 MHz over 2135 MHz 110dB min 110dB min 100dB min 110dB min @ 2115.625 ～ @ 1925.625 ~ @ 2115.625 ～ @ 1925.625 ~ 2129.375 MHz 1939.325 MHz 2129.375 MHz 1939.325 MHz 20±1.0 dB - 15±1.0 dB 40±1.0 dB 80dB min.@ 2nd - 80dB min.@ 2nd Har. Har. 50dB min.@ 3rd - 50dB min.@ 3rd Har. Har. 80 ns / FA 50 ns / FA 80 ns / FA 50 ns / FA 20 Watts (Avr.) 50Ω SMA female -30℃ ~ +70℃ Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!112 www.srtechnology.com

Photo Drawing Divider Arrestor DC Block113 DC BLOCK ARRESTOR DIVIDER ATTENUATOR TERMINATION FILTER

Filter Termination AttenuatorFilter Module PN : R03-M1755-01 Feature - Filter Module for PCS. - Monitoring port using coupler. - Outstanding Attenuation. - Test JIG application - Designed 3 same frequency BPF set in one body. Specification ITEMS SPECIFICATIONS 17 dBc Frequency Range 1750 ~ 1760 MHz Insertion Loss (Max.) 55 dBc Return Loss (Min.) 2.0 dB 85 dBc Pass Band Ripple (Max.) 20 dB 0.8 dB Attenuation (Min.) 1745 MHz 1765 MHz Isolation (Min.) 1730 MHz Dimensions (W×H×D) 1780 MHz In/Out Port Connectors 1840 ~ 1850 MHzCoupling Port Connectors 138.0 × 39.8 × 190.0 mm Operating Temperature SMA(F) / SMA(F) SMA(F) -20℃ ~ 75℃ Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!114 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR 40.0 DIVIDER 138.0 60.0 190.0 ARRESTOR 46.0 38.0 29.0 17.0 25.0 25.0 39.8 DC BLOCK 115

Filter Termination AttenuatorFilter ModulePN : R03-M0910-01 Feature - Filter Module for GSM900 and GSM1800. - Outstanding Isolation for 100dBc at each band. - 80dBc Min for 2nd Harmonic with LPF. - Coupler inside for each Tx band to monitoring. - Additional Arrestor function for protecting lightning.Specification ITEMS Specification (900MHz Band) Specification (1800MHz Band) Frequency RangeInsertion Loss (Max.) Rx TX Rx TX Return Loss (Min.) 905 ~ 915MHz 950 ~ 960MHz 1735 ~ 1755MHz 1830 ~ 1850MHz Ripple (Max.) Isolation (Min.) 1.5dB Attenuation (Min.) 20.0dB2nd Harmonic (Min.) 0.8dB Coupling Value TX Band RX Band TX Band RX BandIn/Output Impedance : 100.0dBc : 100.0dBc : 100.0dBc : 100.0dBc Temperature Fc±10MHz 7.0dBc Fc±10MHz 7.0dBc Fc±15MHz 7.0dBc Fc±15MHz 7.0dBc Arrester Fc±15MHz Fc±15MHz Fc±20MHz Fc±20MHz 15.0dBc 15.0dBc 15.0dBc 15.0dBc 884 ~ 894MHz: - 33dBc 80dBc - 40.0±1.5dB 40.0±1.5dB 50Ω -30 ~ +80℃ Voltage waveform : 1.2/50 us ( 6kv ), Current : 3kA ( 8/20 us) RF Line to Ground : 5 times each ± 10 times / Minute Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!116 www.srtechnology.com

Photo Drawing Divider Arrestor DC Block117 DC BLOCK ARRESTOR DIVIDER ATTENUATOR TERMINATION FILTER

Filter Termination AttenuatorFilter ModulePN : R03-M0910-02 Feature - One Filter Module for GSM, PCS and WCDMA. - One Antenna port for GSM, PCS and WCDMA. - All Tx port used coupler for monitoring. - Additional Arrestor function for protecting lightning. - Cost effective for repeater by one Antenna with 6 band together.Specification Specification (900MHz Specification (1.8GHz Specification (2.1GHz ITEMS Band) Band) Band) Frequency Range Rx TX Rx TX Rx TXInsertion Loss (Max.) 905 ~ 950 ~ 1735 ~ 1830 ~ 1960 ~ 2150~2170 Return Loss (Min.) Ripple (Max.) 915MHz 960MHz 1755MHz 1850MHz 1980 MHz MHz Isolation (Min.) 1.5dB Attenuation (Min.) 20.0dB2nd Harmonic (Min.) Coupling Value 0.8dB Impedance Temperature TX Band RX Band TX Band RX Band TX Band RX Band : 100.0dBc : 100.0dBc Arrester : 100.0dBc : 100.0dBc : 100.0dBc : 100.0dBc Fc±15MHz Fc±15MHz Fc±10MHz Fc±10MHz Fc±15MHz Fc±15MHz 7.0dBc 7.0dBc 7.0dBc 7.0dBc 7.0dBc 7.0dBc Fc±20MHz Fc±20MHz 15.0dBc 15.0dBc Fc±15MHz Fc±15MHz Fc±20MHz Fc±20MHz 15.0dBc 15.0dBc 15.0dBc 15.0dBc 884 ~ - 894MHz: 27dBc 80dBc - 40.0±1.5dB 40.0±1.5dB 40.0±1.5dB 50Ω -30℃ ∼ 80℃ Voltage waveform : 1.2/50 us Voltage : 6kv, Current : 3kA ( 8/20 us) RF Line to Ground: 5 times each ± 10 times / Minute Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!118 www.srtechnology.com

Photo Drawing Divider Arrestor DC Block119 DC BLOCK ARRESTOR DIVIDER ATTENUATOR TERMINATION FILTER

Filter Termination AttenuatorFilter ModulePN : R03-M0840-01 Feature - One Filter Module for CDMA. - Filter Module for Duplexer and Band pass filter. - Tx port used coupler for moniting. - Arrestor inside for protecting lightning. - Rx BDF desinged as one body for Diversity which prevent for the problem at Rx Duplexer.Specification ITEMS Specification Pass Band Frequency Low High BPF Insertion Loss(Max) Return Loss (Min.) 836.505 ~ 843.885 MHz 881.505 ~ 888.882 MHz 836.505 ~ 843.885 MHzPass Band Ripple(Max) 2.0dB 1.0dB 2.0dB Attenuation 20 dB 20 dB 20 dB Isolation (Min.) 0.8dB 0.5dB 0.8 Coupling Value 851 MHz 35 dBc 35dBc @ 851 MHz Impedance 896 MHz 20 dBc ConnectorOperating Temperature 90 dBc 80 dBc 90 dBc 881.505 ~ 888.882 30.8 ± 0.5 dB _ MHz 50Ω SMA(F) -20℃ ~ 75 ℃ Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!120 www.srtechnology.com

Divider Arrestor DC Block FILTERPhoto TERMINATIONDrawing ATTENUATOR 45.0 25.0 DIVIDER 25.0 142.0 35.0 16.0 200.0 46.0 ARRESTOR 27.0 32.5 45.0 64.8 DC BLOCK 121

Filter Termination AttenuatorFilter ModulePN : R03-M8310-01 Feature - One Filter Module for CDMA and WCDMA. - Outstanding Attenuation and isolation. - 150dBc PIMD (40dBm / 2 tone) at each Rx band width. - Designed for the repeater using 2 Antennas. SpecificationCDMA ITEMS Specification Pass Band Frequency Low High Return Loss (VSWR) 824 ~ 839 MHz 869 ～ 894 MHz 18 dB min (1.3:1) 18 dB min (1.3:1) Insertion Loss 6dB max 5.7dB max Pass Band Ripple 1.3dB max 1.0dB max 20dB min @ ≤ 821 MHz 20dB min @ under 866 MHz Attenuation 28dB min @ ≥ 841 MHz 20dB min @ over 896 MHz 60dB min @ 10 ~ 800 MHz 80dB min @ 1500 ~ 2700 MHz Isolation 105dB min @ 869 ～ 894 MHz 110dB min @ 824 ~ 839 MHz Coupling Value 40±1.0 dB PIMD(40dBm/2tone) 150 dBc min. @ Rx In-bandWCDMA ITEMS Specification Low HighPass Band Frequency 1930.48 ~ 1959.52 MHz 2120.48 ～ 2149.52 MHzReturn Loss (VSWR) 18 dB min (1.3:1) 18 dB min (1.3:1) Insertion Loss 6.2dB max 5.7dB maxPass Band Ripple 1.0dB max 1.0dB max 12dB min @ ≤ 1927.5 MHz 12dB min @ ≤ 2117.5 MHz 12dB min @ ≥ 1962.5 MHz 12dB min @ ≥ 2152.5 MHz Attenuation 60dB min @ 10 ~ 800 MHz 80dB min @ 2300 ~ 2700 MHz 80dB min @ 800 ~ 1870 MHz 40dB min @ 2.7 ~ 12.75 GHz 110dB min 110dB min Isolation @ 2120.48 ～ 2149.52 MHz @ 2120.48 ～ 2149.52 MHz Coupling Value 15±1.0 dB 40±1.0 dB Harmonics - 80dB min.@ 2nd Har.Group Delay Variation 30 ns / FA 30 ns / FAPIMD(40dBm/2tone) 150 dBc min. @ Rx In-bandConnector(All Ports) SMA femaleFilter isOpaecrautsintogmTeizmepderpartoudreuct, if there is not the product wha-t2y0o℃u ~w+a7n0t℃at this Bible. Please contact,[email protected]. You can get the best solution!122 www.srtechnology.com

Photo Drawing Divider Arrestor DC Block123 DC BLOCK ARRESTOR DIVIDER ATTENUATOR TERMINATION FILTER

Filter Termination AttenuatorCombiner PN : R06-M1810-01 Feature - Combiner for PCS, WCDMA, WIFI. - Waterproof spec for outdoor application. - 100Watt power Combiner as designed filter technology. - Bracket supplied for out door application. Specification Specification ITEMS 2G/3G Band WIFI Band Frequency Range 1750 ~ 1870MHz 1960 ~ 2170 MHz 2400 ~ 2485 MHzInsertion Loss (Max.) 0.4dB VSWR (Max.) Ripple (Max.) 1 : 1.2 Isolation (Min.) INPUT POWER 0.25dB PIMD WIFI Band : 80.0dBc 2G/3G Band : Connector Type 80.0dBc Dimensions 100 Watts 150dBc (43dBm/two tone) N Female 38 X 132 X 134 (excluding Bracket) 43 X 165 X 134 ( including Bracket) Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!124 www.srtechnology.com

Photo Drawing Divider Arrestor DC Block125 DC BLOCK ARRESTOR DIVIDER ATTENUATOR TERMINATION FILTER

Filter Termination AttenuatorCombinerPN : R06-M0859-01Feature - 150Watt High power & Outdoor application. - Reliable Passive Intermodulation. - Outstanding Insertion Loss. Specification CDMA WCDMA WIBRO ITEMS 824~894 MHz 1920~2170 MHz 2300~2400 MHz Frequency Range 70MHz 250MHz 100MHz Band Width Insertion Loss(Max) 0.25 dB Ripple(Max) 0.15 dB Return Loss(S11,S22)(Min) 18.0 dB BAND Isolation 55 dB (min.) Passive IM 3rd: -140dBc(min) 5th: -160dBc (max.) Impedance Input Power (43dBm CW 2-Tone input Power) I/O Connector Dimensions(WXDXH) TX FrequencyOperating Temperature/Humidity CDMA-CDMA, /WCDMA-WCDMA,/WCDMA-WiBro 50Ω 150W MAX. @each band SMA female-50.0mm LONG Type 120 X 150 X 53 mm -40~70℃/5~95%Photo Filter is a customized product, if there is not the product what you want at this Bible. Please contact, [email protected]. You can get the best solution!126 www.srtechnology.com

Divider Arrestor DC BlockCombiner (800MHz and 2600MHz) FILTER PN : R06-M0859-02 TERMINATION Feature - Excellent Insertion Loss and Band Ripple. - 2Watt power and Indoor combiner.Specification ITEMS Specification ATTENUATORFrequency Range(MHz) 824~894 1920~2655 DIVIDER Insertion Loss 0.6 dB max. 0.6 dB max. Return Loss 18 dB min. 18 dB min. Band Ripple 0.2 dB max. 0.2 dB max. 45dB min. 45dB min. Isolation PIMD (3rd) -130 -130 Max. Power(W) 3 2Photo ARRESTOR DC BLOCK 127

2. Termination Block Diagram 50Ω termination 50Ω termination128 www.srtechnology.com

• About Termination············································130• SMA Termination··············································139• N Termination·····················································140• 7/16 DIN Termination······································142• Other Termination············································143 129

TerminationFilter Attenuator2. Termination About TerminationYou may remember the movie “Terminator“ if you are in the middle of 30 ~40 years old. Even though he got shot and there are lots of obstacles to him,terminator chased and removed until the target is terminated in the end,There is also Terminator in RF circuit. The terminator’s target in RF circuit isthe noise which ruins the RF circuit performance.Termination in RF system is composed of that 50Ω resistor is connectedwith Ground(GND). In a coupler or isolator, 50Ω resistor is connected withisolation port which is connected with GND. By connecting this way, thereflective wave is diffused to the heat energy, and the signal of reflectivewave is terminated. There is another purpose of using terminator that itprevent a minute signal, which should not be occurred, from occurringbeside of terminating the signal. Isolation port Isolation port 50Ω termination 50Ω termination (Dra. 2-2) Termination in Coupler(Dra. 2-1) Termination in IsolatorThe above pictures on Dra. 2-1 and Dra. 2-2 are shown the terminationexamples in isolator and coupler from the left to right. The termination inisolator is installed in order to diffusing the reflective signal to the heat. The130 www.srtechnology.com

Divider Arrestor DC Blocktermination in coupler is installed on isolation port in order to remove the FILTERminute signal, even though signal would not be occurred at the isolationport actually. TERMINATIONIf there are more than 3 input and output ports in the power divider, ATTENUATORcoupler and circulator, the termination is also used to check the electricalperformance of the power divider, coupler and circulator after selecting DIVIDERthem. Termination is connected to the un-using port while other two portsare checked in use. ARRESTORLet’s see how the termination is worked in coupler. DC BLOCKWhen we measure S11 or S21 in Network analyzer, Coupler should beconnected with terminator not only isolation port but coupled port. Someof input signals from input port are transferred to the coupled port. Thetransferred signal to coupled port could be returned to the input port if thecoupled port is not installed by termination. The S11 and S21 in coupler can’tbe measured properly without termination in coupled port.Power divider is same as like coupler. Termination is connected with portNo. 3 when it is checked S21 value, and terminator is connected at port No.2 port when we measure to get S31 value in order not to occur a reflectivewave.There is a dummy load which concept is similar to the termination.When it is designed RF transmitter system, antenna is the final object toradiate the signal. Let’s try to power on and send an input signal to test intotransmitter whether this transmitter works properly or not. If the transmitteris designed well, the input signal is modulated and amplified, and the output 131

TerminationFilter Attenuator signal is radiated through antenna. But if the transmitter is not designed properly even in some small parts, signal would be radiated away. It could be against the law if this radiated signal get out of his originally intended frequency range or exceed allowed transmitting power. It is also required to get permission from government to transmit intended signal. At this time, we need the dummy load. If the dummy load is installed on the port instead of antenna, all of the signal, which is supposed to be radiated at the final stage in transmitter system, will be absorbed and diffused to heat energy without any reflective signal to the out of the system. The signal is looked like to be radiated through Antenna in transmitter system. In general, Dummy load has a large area of heatsink in order to bear high input power. If you would understand the above explanation, the return loss is very important in termination. Since there is only 1 port, you don’t need to care about the insertion loss but return loss only. The additional thing for the consideration is the input power. While Termination is working, the energy of electromagnetic waves are diffused to the heat and the waves are terminated. When it is tried to remove an electromagnetic wave energy, heat is generated. If we would compare the same 3GHz frequency range applied termination with other types of termination, their application and the area of surface should be different from 1Watt 3GHz termination and 100Watt 3GHz termination. If the input power is higher, it will generate more heat, and the termination requires more area of surface and a large heatsink to cooling it down. For example, if transmitter send the 50dBm power into antenna port, 1Watt(30dBm) of termination which is installed on the port of antenna is not good enough to cover the 50dBm input power. 100Watt(50dBm) termination132 www.srtechnology.com

Divider Arrestor DC Blockshould be used at least or it is recommended to use more than 100Watt FILTERtermination such as 125Watt or 150Watt termination. The termination will besafe just in case by this way. TERMINATIONAs the principle in termination and dummy load is same, it is all right to use ATTENUATORany kind of termination or dummy load if applied input power and coverageof frequency is capable for. DIVIDERIn the conclusion, Termination delete useless input signal by diffusing way atthe end of RF circuit.Termination can be used in all telecommunication equipment and devicesincluding not only mobile telecommunication system but wired and wirelesstelecommunication systems. Wireless Communication Systerm ARRESTOR DC BLOCK (Dra. 2-2) Wireless communication system 133

TerminationFilter Attenuator It will be easy to understand of the application of the termination with the explanation of using mobile telecommunication system. When you input number in your mobile, and then push ‘Send’ to call your friend. The signal from your mobile phone is transmitted to the antenna located in the building. The antenna transmits the signal to the combiner(or divider) which is connected to the antenna. The combiner(divider) transmits the signal to repeater, and the repeater transmits the received signal to base station, and then the base station finally transmits the signal to the system operator. The signal is transmitted to the receiver in a reverse way. The signal which is transmitted to the base station goes through the repeater and then is transmitted to the antenna which is installed in the building through the divider(combiner). And the signal is finally transmitted to the other mobile phone receiver. As you can see Dra. 2-3 Mobile telecommunication system, the sender and the receiver used the divider(combiner). You probably know that the divider is an asymmetrical circuit for input and output. When the divider is used in reverse, it works as the combiner and when the combiner is used in reverse, it works as the divider. Please refer to the divider section in this RF Bible at the page 164. The divider can be used as 2, 3, 4, 8 or more ways of output port depending on the installation environment. However, all the ports are not available according to the installation environment. It means that one port may not be available while the remaining three ports are available although the divider is used as 4 ways. For such cases, you need to add termination to the port which is not used in order to prevent reflected signals.134 www.srtechnology.com

Divider Arrestor DC Block FILTER TERMINATION (Dra. 2-4) Connected termination at divider ATTENUATORIt is recommended to select termination with a certain handling powermargins in accordance with each output port power which are divided by DIVIDERthe output port of power divider from the input power. The reason for usingthe over power of termination is to secure the safety of system from the ARRESTORuncertain over input power to the termination.I took the divider which is connected to the repeater as an example, and the DC BLOCKrepeater is also recommended to be terminated with over coverage handlingpower termination on the output port which is not used. Termination isusually used with connecting chains to the repeater to prevent loss. (Dra. 2-5) Termination with chainIt is exampled the isolator and coupler to explain the application of the 135

TerminationFilter Attenuator termination. As explained, termination is designed with connection to many products such as isolator, circulator, coupler, cavity filter and so on having signals corresponding to the purpose of the product or system, or is used in connection to the external port of the product. As you look into wireless routers, mini repeaters and other various modules which are commonly used, you can see that terminations are frequently used to terminate signals which are injected to the unused ports of various devices. It is good for you to consider the following in advance when you select terminations. First of all, you need to check what kind of connectors is connected for each product, module or system. You need to understand what kind of connector is when you develop or purchase a product to connect it to the end of the RF circuit. If you don’t know how to distinguish connector types, please refer to 197 page of this RF Bible to find out the same connector and check the gender of the male or female. Secondly, you need to check the maximum frequency available to each connector. MIL-C-39012 specifies BNC connectors as DC-4GHz, SMA connectors as DC- 18GHz and N connectors as DC-11GHz (or DC-18GHz). So it may not be available if you are looking for the termination of BNC connector type with 10GHz. Thirdly, you need to check the output power from the equipment, in other words, input power of Termination.136 www.srtechnology.com

Divider Arrestor DC BlockAfter checking the output power of the RF circuit for which you want to FILTERuse the termination, you may consider the termination with the inputpower same as the output power. However, it is recommended to get the TERMINATIONtermination with 30%~50% of the additional Termination power coveragefor safety reason from the over power incidentally by the system. Somebody ATTENUATORselect the terminations with the input power same as the output powerof the RF circuits, but most of them use terminations which have more DIVIDERpower up to 30%~50% normally than actual input power to termination.Because, if the unintended over power due to an unstable power system ARRESTORmay be transmitted to the termination, and the termination may degradeor deteriorate the function. The over power may be transmitted to the DC BLOCKsystem, and the expensive system may be broken so that the high power oftermination of application rather than the real input power as an insurancecharacteristic is recommended to use.Fourthly, you need to consider the size of the product.Terminations are designed and manufactured for either indoor or outdoorpurpose. Indoor terminations are installed within devices or buildings. So thesize matters when the termination is installed within a device. As the powerincreases, the size of heatsink of the termination increases. It means thathigh power terminations may not be used in a small system device or in anarrow space. Under the same input power, smaller size of the terminationincluding the heatsink means better efficiency. However, those terminationswith higher input power and smaller size are relatively expensive.Outdoor terminations mean they can be used in external environments.External environments mean the terminations comply with IP rating standardin its own function. Please refer to 335 page of RF Bible for the explanationof IP rating. 137

TerminationFilter AttenuatorFifthly, we have checked the physical conditions of the product, and now youneed to check the electrical functionality of the product.As explained above, the termination is a 1-port device. Therefore it onlyhas return loss and doesn’t have insertion loss. So you need to check thebandwidth of the RF circuit that you are designing, and then you can checkthe Return loss in that bandwidth or V.S.W.R. values.We have reviewed the definition of terminations, their applications andconsiderations for selection of proper product. Though termination seemssimple devices but if you look into them you will understand they are verycritical products in telecommunication system.138 www.srtechnology.com

Divider Arrestor DC BlockSMA Termination FILTERConnector Type Power Frequency VSWR (Max.) PN TERMINATION SMA Male 1 Watt DC ~ 6GHz 1.20 : 1 E01-A0106-01 SMA Male 1 Watt DC ~ 18GHz 1.25 : 1 E01-A0118-02 ATTENUATOR SMA Male 2 Watt DC ~ 6GHz 1.20 : 1 E01-A0206-01 SMA Male 2 Watt DC ~ 18GHz 1.25 : 1 E01-A0218-01 SMA Male 5 Watt DC ~ 6GHz 1.20 : 1 E01-A0506-01 SMA Male 10 Watt DC ~ 3GHz 1.20 : 1 E01-A1003-02 SMA Male 25 Watt DC ~ 3GHz 1.20 : 1 E01-A2503-03Photo DIVIDER ARRESTOR DC BLOCK 139

Termination Filter AttenuatorN TerminationConnector Type Power Frequency VSWR (Max.) PN N Male 1 Watt DC ~ 6GHz 1.20 : 1 E04-A0106-01 N Male 2 Watt DC ~ 6GHz 1.20 : 1 E04-A0206-01 N Male 2 Watt DC ~ 18GHz 1.25 : 1 E04-A0218-01 N Male 5 Watt DC ~ 6GHz 1.20 : 1 E04-A0506-01 N Male 10 Watt DC ~ 4GHz 1.20 : 1 E04-A1004-04 N Male 25 Watt DC ~ 4GHz 1.20 : 1 E04-A2504-04 N Male 50 Watt DC ~ 4GHz 1.20 : 1 E04-A5004-08Photo140 www.srtechnology.com