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US5563616A
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Antenna design using a high index, low loss material
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US5434575A
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Phased array antenna system using polarization phase shifting
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US4728805A
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Synaptic radio frequency interactive systems with photoresponsive switching
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US4673894A
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Oscillator coupled through cylindrical cavity for generating low noise microwaves
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US4477811A
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Automatic MDS level analyzer
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US4293956A
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Double-balanced mixer
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US4114115A
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Compandor apparatus
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JPS52128008A
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Transceiver
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US4035736A
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FM discriminator having low noise characteristics
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US3991322A
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Signal delay means using bucket brigade and sample and hold circuits
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US3979679A
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FM demodulator having squelch circuit using bucket brigade delay line
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US3942116A
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Transceiver having improved voice actuated carrier and echo suppression circuit
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US3983488A
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Frequency-modulation demodulator threshold extension device
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US3810046A
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Microwave source
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US3755758A
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Digital tuned microwave oscillator
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