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This paper presents the design of a compact planar inverted-F antenna for Radio Frequency identification (RFID). The antenna has a reading range more than 5 m with resonant frequency 915 MHz. The antenna is designed as two parallel patches. The dimensions of the lower patch control the resonant frequency and the reading range. The paper presents how to choose the dimensions of each of the patches and the shorting wall to control the resonant frequencies and the gain of the antenna. A design and simulation of PIFA based on this geometry for RFID technology is also presented.
Date of Conference: 2-4 Dec. 2008