High frequency switch

Details High frequency switch High frequency switch

2007-07-31

2007-07-31

Takaoka, Dean (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S101000

Reexamination Certificate

active

11549663

ABSTRACT:
To provide a high frequency switch capable of dealing with multiple frequency bands without having plurality of switch circuits. A first diode that conducts due to a bias current when a first switch is closed is interposed between a first signal terminal and a second signal terminal. A strip line with the electrical length L1is connected to the cathode of the first diode, the other end being grounded. At a position with the distance L2from one end of the strip line, a capacitor and a second switch are connected to be equivalently grounded when a second switch is closed. The strip line resonates with the electrical length L1when the second switch is opened, and resonates with the electrical length L2when the second switch is closed.

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