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Development and Experimental Measurements of a Tunable Antenna
Physics Department, University of Ioannina, Ioannina, Greece
- 1 Physics Department, University of Ioannina, Ioannina, Greece
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- 3
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Communications and Network·Volume 05 (2013)·Pages 220–224·Published 26 July 2013·DOI10.4236/cn.2013.53026
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Abstract
Modern telecommunication systems need to be equipped with antennas that are precisely tuned to more than one frequency in order to allow operation in several bands. Antenna precise tuning to the desired frequency is very important for system performance. In this paper the operating frequency of a PIFA antenna is adjusted using a varactor. This configuration has the advantage of conti nuous tuning, thus correcting any frequency deviation due to environmental or other changes. The PIFA antenna’s tuning ranges from 860 MHz to 1025 MHz. Also, the geometry of the antenna is studied through simulations and the effect of the varactor is tested experimentally.
KeywordsPIFAMobile AntennaVaractorFrequency Tuning
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