A Switchable UWB Slot Antenna using SIS-HSIR and SIS-SIR for Multi-Mode Wireless Communications Applications
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A Switchable UWB Slot Antenna using SIS-HSIR and SIS-SIR for Multi-Mode Wireless Communications Applications摘要
A coplanar waveguide (CPW) fed ultra wideband (UWB) antenna with switchable functions and notched band characteristics for multi-mode wireless communication applications is proposed in this paper. The proposed UWB antenna has two stop bands which are achieved by using stepped impedance stub (SIS) loaded stepped impedance resonators (SIR) and SIS loaded hexagon stepped impedance resonators (HSIR). The switchable characteristics are obtained by employing two ideal switches on SISHSIR and SIS-SIR. By controlling the two switches ON and OFF, the proposed UWB antenna can work in multiple modes. The proposed switchable UWB antennas have been designed, analyzed, fabricated and measured. Simulated and experimental results show that the proposed antenna has switchable characteristics, tunable notch band functions and good radiation patterns. The proposed switchable UWB slot antenna can be used as a multi-mode antenna for multiple protocol communications.
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