TRAK’s capability to design and produce a wide range of passive microwave, RF and millimetre wave functions enables TRAK to offer highly integrated sub-assemblies.
The applications which TRAK multi-function assemblies are used in range from commercial marine and defence radar systems to transponders for LEO spacecraft, Earth environmental monitoring systems in GEO spacecraft and transponders and receivers on interplanetary probes.
The image opposite is of an X-Band, filtered, liquid-cooled isolator with switched dummy load. The system was supplied for a radar used to monitor piracy activities in the the Far East.
Notable programs include:
These multi-function assemblies are designed to offer enhanced performance in terms of electrical performance, reliability/mechanical robustness, reduced mass and footprint.
TRAK can combine its core ferrite isolator and circulator capability with transitions, couplers and simple filters to offer multi-function assemblies to produce a cost effective solution.
A broad base of passive microwave, RF and millimetre wave technology enables TRAK to offer highly integrated sub-assemblies designed to offer enhanced performance in terms of electrical performance, reliability/mechanical robustness, reduced mass and footprint. TRAK can combine its core ferrite isolator and circulator capability with transitions, couplers and simple filters to offer multi-function assemblies to produce a cost effective solution.
| Waveguide MFA | Coaxial MFA | uStrip/Stripline MFA | |
| Isolator/Circulator | ✓ | ✓ | ✓ |
| Coaxial Transitions | ✓ | ✓ | ✓ |
| Loads | ✓ | ✓ | ✓ |
| Couplers | ✓ | ✓ | ✓ |
| Attenuators | ✓ | ✓ | ✓ |
| Switches | ✓ | ✗ | ✗ |
| RF Filters | ✓ | ✓ | ✓ |
| Limiters | ✓ | ✗ | ✓ |
| WG Windows | ✓ | N/A | N/A |
| Thermal Management | ✓ | ✓ | N/A |
Space Applications
TRAK has considerable heritage and experience supplying Multi-Function Assemblies (MFAs) realised in waveguide for space applications.
The first was an X-Band integrated Isolator, Circulator and Limiter operating in X-band used in a series of earth observation platforms (~26,000 TRAK supplied devices are currently in orbit), the latest an integrated K-band assembly for the Iridium Next telemetry transponder comprising transition from SMA to WR42, A WR42 low pass filter and isolator and transition from WR42 to WR51.
Operating between 18-22 GHz this assembly incorporates a transition from SMA to waveguide followed by a 40 GHz harmonic filter, an 18-22 GHz low loss isolator and transition to WR51. The internal structure is realised in WR42 to assist making the assembly as compact as possible. Variants of the assembly include an isolated coupler.
| Title | Comment |
| AMAZONAS 2 | Integrated multi-junction coaxial isolator |
| ANIK | Integrated transition, isolator and waveguide window |
| COSMO SKYMED | Integrated microstrip isolator, circulator and limiter |
| NIGERIASAT 1R | Integrated transition and coaxial isolator |
| TECSAR (POLARIS) | Integrated HP isolator, Harmonic filter and waveguide twist in WR90 |
| IRIDIUM NEXT | Integrated transition, filter, isolator in WR42/51 |
| M3G (KaTT) | Integrated isolator, hybrid coupler and transitions in WR28/2.9mm |