AMRC-8-7/16 broadband microwave combiners are for solid state amplifier systems
Link Microtek, the manufacturer of radio frequency (RF) and microwave components and subsystems, has launched a range of broadband microwave combiners for use in high power amplifier systems (HPAs) for applications such as automotive EMC testing.
The AMRC-8-7/16 combiners enable high power, broadband and low loss combination of microwave signals with performance that cannot be achieved by other methods such as Wilkinson. For example, the AMRC-8-7/16 is a 3.0 to 6.0GHz, eight-way combiner offering loss of only around 0.3dB whilst able to combine powers with output up to 1000W. It is a radial design with eight N-type input ports and one 7/16 output port. The design is reciprocal, meaning it can be used as a power splitter as well. The unit is small, measuring 190mm long and 56mm in diameter, and low weight (1.1kg), due to it being fabricated in aluminum. The combiner is unpainted but a black satin paint finish is available.
Combining power from microwave amplifier modules is an increasing requirement as module pricing becomes lower and power and broadband capability increases, says Link Microtek. A solid state combined HPA can reach the output of vacuum tube devices but can also offer ‘graceful degradation’ upon failure of a single module rather than the catastrophic ‘all or nothing’ performance when a tube fails.
Designed and manufactured at Link Microtek’s facility in Basingstoke, the combiners are individually built to customer specifications. Link Microtek can offer wider band (1.0 to 6.0GHz) or narrower band (X-band) versions with different number of ports and connector configurations. A typical narrow band pulsed application would be for weather radar.
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