Gaining higher power levels from higher-densityA figure of merit usually expressed in Joules per cubic inch for capacitors packaging is a general trend in many broadband military/aerospace systems, and a new Class-AB linear power amplifier module from Comstock PST provides impressive power densityA figure of merit usually expressed in Joules per cubic inch for capacitorsA figure of merit usually expressed in Joules per cubic inch for capacitorsA figure of merit usually expressed in Joules per cubic inch for capacitors from 6 to 18 GHz.

Model BME69189-50 is a rugged power module capable of 50 W continuous-wave (CW) output power across that frequencyThe number of complete cycles or vibrations per unit of time. Rate of alternation in an AC current. Expressed in cycles per second or hertz (Hz). range in an enclosure weighing less than 1.5 lb. Offering typical gain of 47 dB across the frequencyThe number of complete cycles or vibrations per unit of time. Rate of alternation in an AC current. Expressed in cycles per second or hertz (Hz). range, it will overdrive its rated output-power level with +10-dBm input power.

The power module measures just 6.56 × 3.50 × 0.84 in. with field-replaceable SMA female input and output RF connectors. It achieves 14% typical DC-to-RF efficiency when running on a +28-VDC supply, consuming a mere 15 W power in standby mode. The power module minimizes noise levels, with second harmonics of typically -15 dBc and third harmonics of typically -25 dBc. Nonharmonic spurious content is typically better than -60 dBc.

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