Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1996-01-29
1998-05-05
Pascal, Robert
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333262, 455 78, 4552771, H01P 115, H04B 144
Patent
active
057480540
ABSTRACT:
A compact high frequency hybrid switch suitably operated in a diversity-type antenna system. A high frequency hybrid switch is comprised of: first to fourth ports; a first high frequency switch circuit for switching a connection established between the first port and the third port; and a second high frequency switch circuit for selecting one from two connections respectively established between the first port and the fourth port, and between the second port and the fourth port. The first and second high frequency switch circuits include respective series and parallel arrangements of diodes, capacitors and distributed constant signal lines which reduce the size and improve the reliability of the switch.
REFERENCES:
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patent: 5499000 (1996-03-01), Morikawa et al.
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patent: 5519364 (1996-05-01), Kato et al.
Stacheko, "Multifunction Diode Device", RCA Technical Notes, TN No. 957, Mar. 15, 1974; A Publication of RCA, Princeton, NJ; pp. 1-2.
Waugh, "Broadbanding the Shunt Pin-Diode SPDT Switch", Microwave Journal, vol. 18, No. 2, Feb. 1975; pp. 55, 59-60.
Furutani Koji
Kato Mitsuhide
Nakajima Norio
Tanaka Koji
Tonegawa Ken
Murata Manufacturing Co. Ltd.
Pascal Robert
Summons Barbara
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