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  • RF Duplexer
  • RF Duplexer
  • RF Duplexer
  • RF Duplexer
  • RF Duplexer

RF Duplexer

A cavity duplexer is a special type of duplexer used in wireless communication systems to separate transmitted and received signals in the frequency domain. The cavity duplexer consists of a pair of resonant cavities, each specifically responsible for communication in one direction.

The working principle of a cavity duplexer is based on frequency selectivity, which uses a specific resonant cavity to selectively transmit signals within the frequency range. Specifically, when a signal is sent into a cavity duplexer, it is transmitted to a specific resonant cavity and amplified and transmitted at the resonant frequency of that cavity. At the same time, the received signal remains in another resonant cavity and will not be transmitted or interfered with.

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Data Sheet

Product Detail

Customization Options Available

Data Sheet

Frequency
(MHz)		 IL.
≤(dB)		  Rejection VSWR
≤		 Power
（CW）		 Connector Temp.
(°C)		 Dimension
LxWxH(mm)		 Model No.
Rx 136-138 1.5 ≥70dB@143-145MHz 1.3 75 N -30~+75 310*148*156 DUP-136M143-02N
Tx 143-145 1.5 ≥70dB@136-138MHz  1.3 75 N -30~+75 310*148*156 DUP-136M143-02N
Rx 155.1-156.1 1.5 ≥75dB@161-162MHz 1.3 80 N -20～+60 310*148*156 DUP-151M161-01N
Tx 161-162 1.5 ≥75dB@155.1-156.1MHz 1.3 80 N -20～+60 310*148*156 DUP-151M161-01N
Rx 158-160 0.8 ≥70dB@162.5-164.5MHz 1.25 200 N -30～+60 430*310*150 DUP-158M162-02N
Tx 162.5-164.5 0.8 ≥70dB@158-160MHz 1.25 200 N -30～+60 430*310*150 DUP-158M162-02N
Rx 240-270 1.0 ≥80dB@40-220MHz
≥80dB@290-1800MHz
≥50dB@1800-2200MHz		 1.3 10 SMA -40～+75 260*190*65 DUP-240M340-30A40S
Tx 340-380 1.0 ≥80dB@40-320MHz
≥80dB@410-1800MHz
≥50dB@1800-2200MHz		 1.3 10 SMA -40～+75 260*190*65 DUP-240M340-30A40S
Rx 351-356 1.6 ≥30dB@358.5MHz
≥85dB@361-366MHz		 1.3 80 Rx:SMA
Tx:SMA
ANT:N
Lengthening		 -20～+60 177.5*134.5*85 DUP-351M361-05SNS
Tx 361-366 1.6 ≥30dB@358.5MHz
≥85dB@351-356MHz		 1.3 80 Rx:SMA
Tx:SMA
ANT:N
Lengthening		 -20～+60 177.5*134.5*85 DUP-351M361-05SNS
Rx 385-390 1.7 ≥40dB@392.5MHz
≥85dB@395-400MHz		 1.3 50 SMA -20～+60 177.5*134.5*85 DUP-385M395-05S
Tx 395-400 1.7 ≥40dB@392.5MHz
≥85dB@385-390MHz		 1.3 50 SMA -20～+60 177.5*134.5*85 DUP-385M395-05S
Rx 403.5-408.5 1.8 ≥75dB@ 413.5-418.5 MHz
≥30dB@ 398.5MHz(20℃)		 1.25 75 SMA -25～+55 260×72×68 DUP-403.5M413.5-05S
Tx 413.5-418.5 1.8 ≥75dB@ 403.5-408.5 MHz
≥30dB@ 423.5MHz(20℃)		 1.25 75 SMA -25～+55 260×72×68 DUP-403.5M413.5-05S
Rx 412-417 1.7 ≥40dB@419.5MHz
≥85dB@422-427MHz		 1.3 50 SMA -20～+60 177.5*134.5*85 DUP-412M422-05S
Tx 422-427 1.7 ≥40dB@419.5MHz
≥85dB@412-417MHz		 1.3 50 SMA -20～+60 177.5*134.5*85 DUP-412M422-05S
Rx 450-500 0.5 ≥60dB@758-865MHz 1.3 50 SMA -20～+60 160*83*53 DUP-450M758-50A107S
Tx 758-865 0.5 ≥60dB@450-500MHz 1.3 50 SMA -20～+60 160*83*53 DUP-450M758-50A107S
Rx 457-459 2.0 ≥95dB@467-469MHz 1.3 50 SMA -30～+60 280*100*68 DUP-457M467-02S
Tx 467-469 2.0 ≥95dB@457-459MHz 1.3 50 SMA -30～+60 280*100*68 DUP-457M467-02S
Rx 703-748 1.5 ≥30dB @ 753MHz
≥85dB @ 758-803MHz		 1.25 40 SMA -20～+65 287*87*48 DUP-703M758-45S
Tx 758-803 1.5 ≥30dB @ 753MHz
≥85dB @ 703-748MHz		 1.25 40 SMA -20～+65 287*87*48 DUP-703M758-45S
Rx 824-849 1.5 ≥80dB @ 869-894MHz 1.3 50 SMA -20～+60 192*60*45 DUP-824M869-25S
Tx 869-894 1.5 ≥80dB @ 824-849MHz 1.3 50 SMA -20～+60 192*60*45 DUP-824M869-25S
Rx 1150-1300 0.4 ≥80dB@1530-1630MHz 1.3 100 N -20～+60 135*100*43 DUP-1150M1530-150A100S
Tx 1530-1630 0.4 ≥80dB@1150-1300MHz 1.3 100 N -20～+60 135*100*43 DUP-1150M1530-150A100S
Rx 1215-1261 0.3 ≥60dB@1550-1610MHz 1.3 300 N -20～+60 180*93*50 DUP-1215M1550-46A60NA
Tx 1550-1610 0.3 ≥60dB@1215-1261MHz 1.3 300 N -20～+60 180*93*50 DUP-1215M1550-46A60NA
Rx 1215-1261 0.3 ≥60dB@1550-1610MHz 1.3 500 N -20～+60 220*113*56 DUP-1215M1550-46A60NB
Tx 1550-1610 0.3 ≥60dB@1215-1261MHz  1.3 500 N -20～+60 220*113*56 DUP-1215M1550-46A60NB
Rx 1518-1676 1.2 ≥80dB@Sideband
±100MHz		 1.3 50 SMA -25～+60 160*105*43 DUP-1518M1920-157A105S
Tx 1920-2025 1.2 ≥80dB@Sideband
±100MHz		 1.3  50 SMA -25～+60 160*105*43 DUP-1518M1920-157A105S
Rx 1710-1785 1.5 ≥5@1700MHz
≥5@ 1790MHz
≥55dB@1795MHz（20℃）
≥85dB@1805-1880MHz		 1.3 50 SMA -20～+65 180*98*43 DUP-1710M1805-75S
Tx 1805-1880 1.5 ≥5@1800MHz
≥10@ 1890MHz
≥55dB@1795MHz（20℃）
≥85dB@1710-1785MHz
≥80@1920-2700MHz		 1.3 50 SMA -20～+65 180*98*43 DUP-1710M1805-75S
Rx 1710-1785 1.2 ≥80dB@1805-1880MHz 1.3 100 Rx:SMA
Tx:SMA
ANT:N
Lengthening		 -20～+65 161*120*43 DUP-1710M1805-75SNS
Tx 1805-1880 1.2 ≥80dB@1710-1785MHz 1.3 100 -20～+65 161*120*43 DUP-1710M1805-75SNS
Rx 2490-2520 1.4 ≥90dB@DC-2450MHz
≥90dB@2620-6000MHz		 1.3 5 Rx:SMA
Tx:SMA
ANT:N		 -20～+60 192*88*40 DUP-2490M2610-30SNS
Tx 2610-2640 1.4 ≥90dB@DC-2570MHz
≥90dB@2740-6000MHz		 1.3 5 SMA -20～+60 192*88*40 DUP-2490M2610-30SNS
Rx 2500-2700 1.3 ≥45@ 2595MHz
≥90@2620-2690MHz		 1.3 50 SMA -30～+60 192*88*48 DUP-2500M2620-70S
Tx 2620-2690 1.3 ≥45@ 2595MHz
≥90@2500-2570MHz		 1.3 50 SMA -30～+60 192*88*48 DUP-2500M2620-70S
Rx 2515-2675 0.6 ≥80dB@3400-3600MHz 1.3 20 SMA -25～+70 100*45*30 DUP-2515M3400-160A200S
Tx 3400-3600 0.6 ≥80dB@2515-2675MHz 1.3  20 SMA -25～+70 100*45*30 DUP-2515M3400-160A200S

Overview

The two main components of a cavity duplexer are the transmitting cavity and the receiving cavity.

The high isolation, low insertion loss, reliability, and stability of cavity diplexers give them great advantages in wireless communication systems.

Cavity diplexers play a crucial role in wireless communication systems, particularly suitable for scenarios where both sending and receiving signals are required to coexist in the same frequency band. For example, communication between base stations and mobile devices, communication between wireless stations and monitoring devices, etc. By using cavity diplexers, the system can achieve efficient and reliable bidirectional communication.

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