Switchable Printed Yagi-Uda Antenna with Pattern Reconfiguration

ETRI Journal

关键词: pattern switchable antenna;    pattern reconfiguration;    printed antenna;    Yagi-Uda antenna;   

Others  :  1185816
DOI  :  10.4218/etrij.09.0209.0006

【 摘 要 】

A switchable Yagi-Uda antenna prototype with radiation pattern reconfiguration is presented in this letter. The proposed reconfigurable antenna is based on the concept of switching between the reflector and director of a Yagi-Uda antenna using a radio frequency PIN diode. As a result, the minimum/maximum radiation can be steered towards desired signals or away from interfering signals in opposite directions. The measured 10 dB impedance bandwidth and gain are 210 MHz (7%) and 8.02 dBi at 3 GHz, respectively. Details of the antenna design and its performance are described and empirically analyzed.

   

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