Direct microwave modulation and demodulation device

Details Direct microwave modulation and demodulation device Direct microwave modulation and demodulation device

H - Electricity

03

C

329/2, 332/49

H03C 3/02 (2006.01) H03D 1/22 (2006.01) H03D 3/00 (2006.01) H03B 1/00 (2006.01)

Patent

CA 2005755

ABSTRACT DIRECT MIRCOWAVE MODULATION AND DEMODULATION DEVICE. A microwave circuit intended for either direct modulation or direct demodulation of a microwave link communications signal is characterized in that the local oscillator (8) is incorporated in the circuit. The local oscillator supplies two signals that are in phase opposition at 180 degrees. Each signal is sent to a phase shifter. The first phase shifter (9) supplies two signals that are in quadrature, at 0 and 90 degrees. The second phase shifter supplies two signals in quadrature at 180 and 270 degrees. The 0 and 180 degree signals are sent to a first mixer (2), while the 90 and 270 degree signals are sent to a second mixer (3). Figure 3.

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