发明申请
US20050270083A1 Radio frequency switching circuit and semiconductor device using the same
审中-公开
射频切换电路和半导体器件使用相同
- 专利标题: Radio frequency switching circuit and semiconductor device using the same
- 专利标题(中): 射频切换电路和半导体器件使用相同
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申请号: US11134351申请日: 2005-05-23
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公开(公告)号: US20050270083A1公开(公告)日: 2005-12-08
- 发明人: Tadayoshi Nakatsuka , Shigeru Kataoka
- 申请人: Tadayoshi Nakatsuka , Shigeru Kataoka
- 专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 优先权: JP2004-166976 20040604
- 主分类号: H01P1/15
- IPC分类号: H01P1/15 ; H01L27/02 ; H01L27/06 ; H01L27/088 ; H03F3/195 ; H03F3/21 ; H03F3/217 ; H03F3/72 ; H03K17/10 ; H03K17/62 ; H03K17/693
摘要:
A radio frequency switching circuit includes a plurality of input/output terminals for inputting/outputting a radio frequency signal and a plurality of basic switching sections each being provided between adjacent two of the plurality of the input/output terminals. Each of the basic switching sections includes three or more field effect transistors connected in series. Each of two of the field effect transistors connected in series which are located in both ends of the basic switching section, respectively, has a higher threshold voltage than respective threshold voltages of other ones of the field effect transistors.
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