A low-cost closed-loop antenna tuner module for mobile phone single-feed multi-band antennas
A low-cost closed-loop antenna tuner module for mobile phone single-feed multi-band antennas
复制标题
一种用于手机单馈多频天线的低成本闭环天线调谐器模块
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
J. Stulemeijer
中科院分区：
文献类型：
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作者：
M. D. de Jongh;A. van Bezooijen;T. Bakker;K. Boyle;J. Stulemeijer
移动电话工作在许多频段，但天线音量受到限制。此外，用户交互的影响会极大地改变天线和前端模块之间的匹配。我们展示了一种多频段多模天线调谐器模块(ATM)，它可以自动改进天线匹配。它的尺寸为4×4×1 mm~3，仅需要直流、通过MIPI或GPIO的同步输入以及自学习校准过程。该自动柜员机覆盖的频率范围非常宽，从600兆赫兹到2700兆赫兹，在50Ω负载下，插入损耗小于0.6db。ATM可满足移动电话天线系统的所有挑战性要求，例如不匹配条件下的低失真产品、高坚固性(在负载VSWR循环为12：1时+34dBm)以及8千伏的ESD接触放电水平。
Mobile phones operate in many frequency bands, while antenna volume is restricted. In addition, effects of user interaction can change matching between antenna and front-end module drastically. We show a multi-band multi-mode Antenna Tuner Module (ATM) that improves antenna matching automatically. It measures 4 × 4 × 1 mm3 and requires only DC, synchronization inputs by MIPI or GPIO, and a self-learning calibration process. The ATM covers a very broad frequency range of 600 to 2700 MHz and has an insertion loss less than 0.6 dB for a 50 Ω load. The ATM fulfills all challenging requirements for placement in a mobile phone antenna system, such as low distortion products under mismatch conditions, high ruggedness (+34 dBm at a load VSWR circle of 12:1) and an ESD contact discharge level of 8 kV.