High-frequency switch

Details High-frequency switch High-frequency switch

1996-07-24

1997-12-16

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333104, 455 78, H01P 115

Patent

active

056990235

ABSTRACT:
A high-frequency switch includes first to third high-frequency switch circuits. The first high-frequency switch circuit has a first transmission line connected between a first antenna port and a first receiving circuit port, and a first diode connected between said first receiving circuit port and ground. The second high-frequency switch circuit has a third transmission line connected between a second antenna port and a second receiving circuit port, and a second diode connected between said second receiving circuit port and ground. The third high-frequency switch circuit has a third diode connected between the first antenna port and a transmitting circuit port, and a fourth diode connected between the second antenna port and the transmitting circuit port. With this configuration, ports are connected or disconnected, or connections are switched, by setting the first to fourth diodes to the on state or the off state.

REFERENCES:
patent: 5159296 (1992-10-01), Nelson
patent: 5510757 (1996-04-01), Kumar et al.
patent: 5519364 (1996-05-01), Kato et al.
patent: 5594394 (1997-01-01), Sasaki et al.

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