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Electrically Controlled Frequency Reconfigurable Comb Type Antenna for Wireless Communication

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ACEEE International Journal of Communications, 4 (2): 5 (ноября 2013)

Аннотация

Electrically controlled frequency reconfigurable comb type antenna is presented in this paper. Reconfigurability is achieved by placing a PIN diode in each slot of the comb type antenna. The proposed antenna has very compact size and works on 8 different bands depending upon the state and number of PIN diode (ON/OFF). Ansoft Designer 7 is used to simulate the equivalent model for the PIN diode and proposed antenna is fabricated on FR4 substrate using photolithography process. As the antenna reconfigure its resonating frequency from 1st band to 8th band, directivity increases from 3.28 to 4.02 and radiation efficiency increases from 75.3% to 93.45% due to the improvement in impedance matching at higher band.

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