Invention Grant
US07995972B2 Electronic component for communication device and semiconductor device for switching transmission and reception
有权
用于通信设备的电子部件和用于切换发送和接收的半导体器件
- Patent Title: Electronic component for communication device and semiconductor device for switching transmission and reception
- Patent Title (中): 用于通信设备的电子部件和用于切换发送和接收的半导体器件
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Application No.: US12222193Application Date: 2008-08-05
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Publication No.: US07995972B2Publication Date: 2011-08-09
- Inventor: Akishige Nakajima , Takashi Ogawa , Hidenori Suenaga , Eigo Tange , Shinya Osakabe , Yasushi Shigeno
- Applicant: Akishige Nakajima , Takashi Ogawa , Hidenori Suenaga , Eigo Tange , Shinya Osakabe , Yasushi Shigeno
- Applicant Address: JP Kanagawa
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kanagawa
- Agency: Mattingly & Malur, PC
- Priority: JP2003-208960 20030827
- Main IPC: H04B1/44
- IPC: H04B1/44

Abstract:
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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