发明授权
- 专利标题： Switch architecture for TDMA and FDD multiplexing
- 专利标题（中）： 用于TDMA和FDD复用的交换架构
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申请号： US11052435申请日： 2005-02-07
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公开(公告)号： US09172404B1公开(公告)日： 2015-10-27
- 发明人: Christian Rye Iversen
- 申请人： Christian Rye Iversen
- 申请人地址： US NC Greensboro
- 专利权人： RF Micro Devices, Inc.
- 当前专利权人： RF Micro Devices, Inc.
- 当前专利权人地址： US NC Greensboro
- 代理机构： Withrow & Terranova, P.L.L.C.
- 主分类号： H04J4/00
- IPC分类号： H04J4/00 ; H04B1/00 ; H04B1/16
摘要：
Switching circuitry is provided for a mobile terminal having a Time Division Multiple Access (TDMA) mode of operation and a Frequency Division Duplex (FDD) mode of operation. The switching circuitry includes resonant tank circuitry having a controllable resonant frequency and an output coupled to an antenna of the mobile terminal. The switching circuitry also includes a transmit switch that couples TDMA transmit circuitry to an input of the resonant tank circuitry when transmitting in the TDMA mode of operation, a receive switch that couples TDMA receive circuitry to the input of the resonant tank circuitry when receiving in the TDMA mode of operation, and a FDD switch that couples a FDD transceiver to the output of the resonant tank circuitry when in the FDD mode of operation. The controllable resonant frequency is controlled such that the transmit and receive switches are isolated from the antenna during FDD operation.
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