发明授权
- 专利标题: Mobile station traffic state antenna tuning systems and methods
- 专利标题(中): 移动台流量状态天线调谐系统及方法
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申请号: US11062239申请日: 2005-02-17
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公开(公告)号: US08396431B2公开(公告)日: 2013-03-12
- 发明人: Henry Chang , Jorge Fabrega-Sanchez , Gregory Poilasne
- 申请人: Henry Chang , Jorge Fabrega-Sanchez , Gregory Poilasne
- 申请人地址: JP Kyoto
- 专利权人: KYOCERA Corporation
- 当前专利权人: KYOCERA Corporation
- 当前专利权人地址: JP Kyoto
- 主分类号: H04B1/40
- IPC分类号: H04B1/40
摘要:
Wireless communication device antenna matching circuit tuning responsive to power control signals, and, optionally, responsive to received signal quality indicators in a traffic channel. Systems and methods are provided that increase the antenna efficiency in either the transmit frequency or the receive frequency as needed, based on fading and environmental conditions, non-ideal antenna efficiency balance, mobile station forward versus reverse link usage and system forward versus reverse link usage. The antenna efficiency may be changed incrementally or may be optimized completely for the transmit frequency or the receive frequency. The re-balancing is accomplished by tuning the antenna matching circuit. One way to tune the antenna matching circuit is to apply a voltage to a ferro-electric capacitor in the matching circuit, thereby changing the capacitance of the ferro-electric capacitor, thereby changing the impedance of the antenna system.
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