Reconfigurable, tri-band RF MEMS PIFA antenna
Reconfigurable, tri-band RF MEMS PIFA antenna
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DOI：
10.1109/aps.2011.5996597
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发表时间：
2011-07
期刊：
影响因子：
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通讯作者：
M. Unlu;Y. Damgaci;H. Mopidevi;O. Kaynar;B. Cetiner
中科院分区：
文献类型：
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作者：
M. Unlu;Y. Damgaci;H. Mopidevi;O. Kaynar;B. Cetiner
本文提出了一种可重构的，三频平面倒F天线（PIFA），采用射频微机电系统（RF MEMS）技术与美国（US）公共安全（PS）频段的带宽增强技术。天线的可重构性是通过RF MEMS开关实现的，以便在三个公共安全频段之间切换，这三个频段的中心频率分别为160、450和800 MHz。天线的宽带工作是通过采用两种带宽增强技术，这是贴片锥形和T形接地层。天线的测量结果显示，在上述三个PS频段的瞬时阻抗带宽分别为7%，11%和19%，他们在所有三个频段的仿真显示出良好的一致性。
This paper presents a reconfigurable, tri-band planar inverted F-antenna (PIFA) that employs RF Micro-Electro-Mechanical Systems (RF MEMS) technology together with bandwidth enhancement techniques for the United States (US) Public Safety (PS) bands. The reconfigurability of the antenna is achieved by RF MEMS switches in order to switch between three Public Safety bands, which are centered around 160, 450, and 800 MHz. The broadband operation of the antenna is obtained by employing two bandwidth enhancement techniques, which are patch tapering and the T-shaped ground layer. The measurement results of the antenna show 7%, 11%, and 19% instantaneous impedance bandwidths in the three above mentioned PS bands, respectively, and they show good agreement with the simulations in all three bands.