发明名称 |
Electric component for communication device and semiconductor device for switching transmission and reception |
摘要 |
There are provided a transmission/reception switching circuit which is small in insertion loss and harmonic distortion and allows an increase in the output power of a power amplifier and an electronic component for communication on which the transmission/reception switching circuit is mounted. As an element composing a transmission/reception switching circuit in a wireless communication system, series-connected FETs or a multi-gate FET are used in place of a diode. Gate resistors connected between the individual gate terminals and a control terminal are designed to have resistance values which become progressively smaller from the gate to which a highest voltage is applied toward the gate to which a lowest voltage is applied.
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申请公布号 |
US2005047038(A1) |
申请公布日期 |
2005.03.03 |
申请号 |
US20040921211 |
申请日期 |
2004.08.19 |
申请人 |
NAKAJIMA AKISHIGE;OGAWA TAKASHI;SUENAGA HIDENORI;TANGE EIGO;OSAKABE SHINYA;SHIGENO YASUSHI |
发明人 |
NAKAJIMA AKISHIGE;OGAWA TAKASHI;SUENAGA HIDENORI;TANGE EIGO;OSAKABE SHINYA;SHIGENO YASUSHI |
分类号 |
H04B1/44;H03F1/02;H03F1/32;H03F3/195;H03F3/72;(IPC1-7):H02H9/00 |
主分类号 |
H04B1/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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