SINGLE-FEED PLANAR ANTENNA FOR SUPPRESSING THE CHANGE IN RECEIVED SIGNAL LEVEL DUE TO STANDING WAVES IN MOBILE COMMUNICATION
2011
The fading phenomenon resulting from standing waves is a factor in quality deterioration in mobile communication technologies (e.g., cellular phones and television receivers). Suppression of this fading phenomenon is needed for many kinds of technologies. A single-feed planar antenna composed of two antenna components, a Planar Monopole Antenna (PMA) and a Planar Slot Antenna (PSA), is proposed for reducing deterioration of reception due to the fading phenomenon. Re∞ection coe-cient and radiation patterns are analyzed by the Finite Difierence Time Domain (FDTD) method and compared with measured results. Results indicate that the proposed antenna has a resonant frequency with functions of the PMA and the PSA. The results of a fleld experiment at 583.76MHz in the Ultra High Frequency (UHF) band indicate that the proposed antenna e-ciently suppresses the fading phenomenon resulting from multipath propagation.
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