TRAK supplies waveguide couplers, combiners and splitters for a variety of space, defence and air defence radar applications. These devices are designed to complement TRAK waveguide isolators and terminations.

TRAK offers a broad capability in the design and supply of waveguide hybrid and loop couplers. TRAK has an expanding portfolio of couplers designed for a variety of radar and space based applications. These have been supplied as stand-alone products and as assemblies that integrate isolators, transitions etc.

TRAK’s general capability ranges from L to Ka-Band with coupler choice dependent on the application and the system considerations.

WR75 2x1 combiner
TRAK announces a new space qualified Ku-Band WR75 hybrid combiner designed to operate over 10.7-14.5 GHz. The Ku-Band combiner can be supplied in two forms; a 2×1 with the 3rd port terminated or a 2×2, with all 4 ports open. Ku-Band WR75 Hybrid 2×1 Combiner. The basic device features a standard flange and has a mass of 140g. Performance is optimized for both the satellite transmit and receive bands and the device is designed to handle several hundred Watts of CW power. Flight qualified couplers will be delivered in late Spring 2016 and extends TRAK’s space qualified hybrid coupler range to include WR62, WR34 and WR28 apertures. Combiners configured as 2×1 or 2×2 types are available with optional isolated inputs with a choice of waveguide apertures or with waveguide to coaxial transitions.


Application Waveguide Loop 2 x 1 Hybrid 2 x 2 Hybrid
S-Band WR430
C-Band WR229
Ku-Band WR75
K-Band WR51
Ka-Band WR34

TRAK has supplied a large quantity of couplers over a relatively short period of time in WR34 and WR28. All of the space qualified couplers delicited to date are hybrid couplers and have been provided with or without a termination on one port or as part of more complicated passive assemblies.

Combiners and splittersOver the coming few months TRAK will expand its portfolio of space qualified hybrid couplers with the delivery in Spring 2016 of WR62 and WR75 broadband 2×1 and 2×2 designs.  Follow this WR75 link  to the most recent posts on the subject.



By Frequency Band *

* FMs supplied to 31st December 2016
Band Couplers/Splitters FMs
Ku [WR62] 4
Ku [WR75] 14
Ka [WR34] 6
Ka [WR28] 376
Total 400