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MILITARY TECHNOLOGY (MILTECH) is the world's leading international tri-service defence monthly magazine in the English language. MILITARY TECHNOLOGY is "Required Reading for Defence Professionals". Follow us on Twitter: MILTECH1

11 July 2016

FIA2016: TMD Showcases NEW Compact Ka-Band MPMs

At Farnborough International Airshow 2016, on Stand #AG68G, ADS UK Pavilion, Hall 1, TMD Technologies Ltd. (TMD), a specialist West London-based SME in the microwave and RF field, is introducing a new line of Ka-band, compact microwave power modules (MPMs) to its TWT based range. Exemplified by the new PTX8807 MPM, operating over the technically challenging 30-40GHz frequency range with an output power of 200W at 100% maximum duty cycle, the new range is designed to meet the exacting demands of radar and EW applications.

The new compact PTX8807 TWT based MPM comprises a high power Ka-band helix travelling wave tube (TWT) and a matched high density switched mode power supply to form a single ‘drop-in’ microwave amplifier unit, thereby eliminating any high voltage TWT interconnections – and the associated safety and reliability hazards. Also, using one MPM instead of a separate TWT and power supply means that spares logistics and maintenance are simplified.

The PTX8807 is configured to incorporate a variety of TWT models, allowing customers to specify particular duty, frequency and peak power parameters. Factory setting optimises TWT performance, obviating the need for user adjustments and thus simplifying any replacement in the field. The new MPM also features high electrical efficiency – requiring minimum cooling and providing high reliability over a wide operating temperature range of -40°C to +65°C.

Because the high voltage section is fully encapsulated, the PTX8807 is able operate at high altitudes up to 45,000 ft and high humidity environments up to 95% (non-condensing), allowing easy and trouble-free integration into a variety of airborne platforms. The PTX8807 also offers remote operation and status monitoring, with internal diagnostic outputs and indicators available for BIT purposes.

Highlighting its capability to offer both high performance solid state and TWT based MPMs, TMD is also exhibiting its solid state PTS6900 MPM and PTXM Series TWT based MPMs. The solid state PTS6900 employs advanced GaN MMIC technology. It operates over the 2-6GHz range, with 150 W output power and adjustable 55 dB gain, and is optimised for EW/ECM systems – with a very high predicted MTBF for an airborne uninhabited fighter environment. Featuring low volume and low weight, the TWT based PTXM Series are ideal for UAVs. Operating over the 4.5 to 18 GHz range with output powers up to 140 W, these ultra-compact MPMs offer perhaps the highest power density on the market.

Furthermore, TMD is exhibiting its fast warm Ku-band ring loop TWTs and rapidly developing range of instrumentation TWT and solid state amplifiers. The latter have applications in the avionics and aerospace industries for radar/EW simulation and training – and also EMC HIRF testing.