Andre van Bezooijen1, Maurice de Jongh1, Christophe Chanlo1, Henk Lennart Ruijs1, Jan ten Dolle1, Pieter Lok1, Freek van Straten1, Jack Sneep2, Reza Mahmoudi3, Arthur H.M. van Roermund3
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引用次数: 26
摘要
为了在波动的工作环境中保持链路质量，提出了一种自适应天线匹配模块，该模块由一个5位RF-MEMS开关电容阵列、一个双极60/30 V mems偏置电压发生器(用于提高可靠性)和一个阻抗相位检测器(提供失配信息)组成。采用迭代上下计数算法进行鲁棒控制。测量结果表明，即使在10的驻波比下，天线电抗也有适当的校正。该开关电容阵列具有1至15pf的大调谐范围和0.4 dB的插入损耗。该探测器动态范围为35 dB，精度为8度，范围为0.8至2 GHz。自适应匹配将使隔离器冗余。
To preserve the link quality, in fluctuating operating environments, an adaptive antenna matching module is presented that consists of a 5-bit RF-MEMS switched capacitor array, a bipolar 60/30 V MEMS-biasing voltage generator for improved reliability, and an impedance phase detector that provides information on mismatch. It uses an iterative up-down counting algorithm for robust control. Measurements show proper correction of the antenna reactance, even for a VSWR of 10. The switched capacitor array exhibits a large tuning range from 1 to 15 pF and an insertion loss of 0.4 dB. The detector dynamic range equals 35 dB with an accuracy of 8 degrees from 0.8 to 2 GHz. Adaptive matching will make isolators redundant.
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