Structure of multi-band microwave detector

Details Structure of multi-band microwave detector Structure of multi-band microwave detector

1993-04-26

1994-11-08

Sotomayor, John B.

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

Radar ew

Detection of surveilance

342175, G01S 740

Patent

active

053631056

ABSTRACT:
A microwave detector comprises a one side opened hollow member having a first portion and a second portion, a printed circuit board, on which a metal layer is formed on one side, the metal layer on the printed circuit board cooperating with the hollow member for forming a horn antenna at a position corresponding to the first portion and an oscillation cavity for housing a first local oscillator at a position corresponding to the second portion, the horn antenna including a throat portion communicated with the oscillation cavity, a first mixing circuit disposed in the throat portion, an intermediate frequency processing circuit formed on the other side of the printed circuit board and including a first intermediate frequency filter, a second mixing circuit and a second local oscillator, and means for establishing electrical connection between the first mixing circuit and the intermediate frequency processing circuit across the printed circuit board.

REFERENCES:
patent: 4571593 (1986-02-01), Martinson
patent: 4613989 (1986-09-01), Fende et al.
patent: 4939521 (1990-07-01), Burin
patent: 4961074 (1990-10-01), Martinson
patent: 5268689 (1993-12-01), Ono et al.

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