Radio frequency switch
First Claim
1. A switch comprising at least three FETs that are connected in series and select one of radio frequency signals, one of the at least three FETs arranged at an intermediate stage having a width of a source or drain electrode narrower than widths of source or drain electrodes of other FETs arranged at initial and final stages.
1 Assignment
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Accused Products
Abstract
A switch that selectively changes radio frequency signals includes at least three FETs, which are connected in series. The source electrodes or drain electrodes arranged at an intermediate stage have a width narrower than that of the source electrodes or the drain electrodes arranged at the initial and final stages. It is thus possible to lower the parasitic capacitance to ground at the intermediate stage and to thereby realize the switch having a high handling power.
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Citations
5 Claims
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1. A switch comprising at least three FETs that are connected in series and select one of radio frequency signals,
one of the at least three FETs arranged at an intermediate stage having a width of a source or drain electrode narrower than widths of source or drain electrodes of other FETs arranged at initial and final stages.
Specification