H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/91
H04B 1/08 (2006.01) H04B 1/26 (2006.01)
Patent
CA 1199370
Abstract of the Disclosure The front end of a microwave receiver includes a waveguide with one wall comprised partially of the conductive ground plane of a printed circuit board. On the opposite side of the circuit board is mounted receiver front end circuitry including packaged, discrete devices and integrated circuits. An RF probe is inserted through the circuit board and into the waveguide for picking up a signal incident thereon and providing it to the aforementioned receiver front end circuitry. Incorporated in the waveguide is a cavity also partially formed from the ground plane of the receiver circuit board and containing a dielectric resonator element which, in combination with an oscillator located on the circuit board, provides a reference frequency for mixing with the received signal in generating an IF signal which is then provided to IF signal processing circuitry. The integrated RF receiver/waveguide is compact, incorporates readily available components in an inexpensively manufactured structure, and is particularly adapted for the front end of an SHF receiver such as utilized to receive satellite television signals.
433469
Macrae & Co.
Zenith Radio Corporation
LandOfFree
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