Dual frequency transmit-receive module for an active aperture ra

Details Dual frequency transmit-receive module for an active aperture ra Dual frequency transmit-receive module for an active aperture ra

1988-09-21

1990-08-21

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

342372, H01Q 326

Patent

active

049510606

ABSTRACT:
An improved, dual frequency transmit-receive module operable for use with two harmonically related frequencies. This dual frequency transmit-receive module utilizing; a push-pull class B power amplifier having dual output ports, a standard frequency mixer and a harmonic mixer, is operable to transmit or receive an original frequency as well as a second harmonic of that same frequency, simultaneously or at distinct, discrete intervals. This improved dual frequency transmit-receive module is operable in any radar system, using only one, or a multiplicity of antennas. However, this transmit-receive module has specific application to active aperture radar systems utilizing one antenna means for each individual transmit-receive module in an active antenna array.

REFERENCES:
patent: 4099228 (1978-07-01), Cohn
patent: 4160975 (1979-07-01), Steudel
patent: 4682176 (1987-07-01), Jones
patent: 4791421 (1988-12-01), Morse et al.

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