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A polarization reconfigurable antenna using metasurface superstrate is proposed in this paper. The proposed antenna consists of a planar coupling slot with an array of metallic rectangular patches with PIN diodes which can be view as a reconfigurable metasurface superstrate, and a DC bias controlling circuit. When the PIN switches are OFF, the antenna can produce left-hand circular polarized (LHCP)...
In this letter, a new coplanar waveguide (CPW)-fed circularly polarized (CP) antenna with enhanced bandwidth and radiation is proposed for IEEE 802.16 Worldwide Interoperability for Microwave Access (WiMAX) and IEEE 802.11a wireless local area network (WLAN) applications. By protruding a symmetric T-type strip from CPW feedline, a broad input impedance bandwidth is obtained. To widen CP radiation...
A compact pattern reconfigurable quasi-Yagi antenna is presented. It consists of a driven element, which is simply realized by a microstrip monopole and only one parasitic element with four PIN diodes integrated on the arm. The effective electrical length of the parasitic element is controlled by changing the biasing voltages. This configuration allows two end-fire patterns with relatively high gain...
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