Single-pole-double-throw switch integrated with band pass...

Details Single-pole-double-throw switch integrated with band pass... Single-pole-double-throw switch integrated with band pass...

2008-06-05

2010-02-09

Takaoka, Dean O (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S262000

Reexamination Certificate

active

07659794

ABSTRACT:
A single-pole-double-throw switch is provided, which is configured to be integrated with a bandpass filtering function and includes four quarter-wavelength transmission lines connected in series, five resonators connected in parallel to each other, and four transistors connected in parallel to four of the five resonators. When two of the four transistors are turned on and the others are turned off, the single-pole-double-throw switch is equivalent to a third-order quarter-wavelength short-circuited stub bandpass filter.

REFERENCES:
patent: 4267538 (1981-05-01), Assal et al.
patent: 5193218 (1993-03-01), Shimo
patent: 6359529 (2002-03-01), Tsunoda et al.
patent: 6414566 (2002-07-01), Atokawa
patent: 7012478 (2006-03-01), Filleboeck et al.
patent: 7411471 (2008-08-01), Tsukahara

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