FM receivers using three-terminal negative admittance networks o

Details FM receivers using three-terminal negative admittance networks o FM receivers using three-terminal negative admittance networks o

1988-05-09

1989-09-05

Griffin, Robert L.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency or phase modulation

455324, 455214, 455333, 455258, H04B 130, H04B 124

Patent

active

048646385

ABSTRACT:
Novel FM receivers are disclosed, which are very compact and simple yet possess high sensitivity. The receivers use novel three-terminal and two-terminal negative admittance networks. In one embodiment, one three-terminal negative admittance network forms a complete FM homodyne receiver. In another embodiment, two three-terminal negative admittance networks are used as the frequency converter and the demodulator and other functions of a super-heterodyne receiver. In still another embodiment, a two-terminal negative admittance network is employed together with a three-terminal negative admittance network to form a complete super-heterodyne FM receiver.

REFERENCES:
patent: 3493870 (1970-02-01), Kupfer
patent: 4184120 (1980-01-01), Teshirogi
patent: 4736459 (1988-04-01), Zwarts
patent: 4754497 (1988-06-01), Zwarts

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