Diplexer – 803450

This Diplexer utilizes two ports that allows two different types of filters to fit into one package. The most common topology we use, typically involves a High Pass and Lowpass combination. This combination can be altered based on customer specifications.

This particular Diplexer provides a lowpass passband between 1396 and 6000 MHz with low Insertion Loss and consistent Return Loss. The lowpass also contains a solid 50 dB of isolation from the high pass and carries out this isolation through 10.77 GHz. The High pass maintains low loss through the passband of 1396 to 6000 MHz while keeping a consistent VSWR through the same passband. The opposing isolation from the lowpass is also held to 50 dB. The wide range of diplexers that we have been able to achieve here at Bree Engineering is shown with the many Multiplexers that we do, this Part Number reflects that with its low diplexed cut off frequencies.

As with all of our Filters here at Bree Engineering the design is custom and tailored to the specifications of our clients. We are always striving to do our best to design, build and tune filters of any type.


Please see the attached Filter Test Data for the performance of the filter.

Package Size: 1.00 x 1.00 x 0.40 Inches

Configuration: SMA-F Connectors

Insertion Loss:

Channel 1: <0.75 dBa 698 MHz – 915 MHz

Channel 2: <1.00 dBa 1396 MHz – 6737 MHz

Return Loss:

Channel 1: >17 dB 698 MHz – 915 MHz

Channel 2: >15 dB 1396 MHz – 6737 MHz


Channel 1: >50 dBc 1396 MHz – 10770 MHz

Channel 2: >50 dBc 698 MHz – 915 MHz