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The quad-band antenna, which is composed of two compact dual-band antennas, is presented for potable media player (PMP) applications. The antenna for the broadcasting dual-band (DVB-H UHF; 470–862 MHz, L; 1452–1492 MHz) is composed of a planar inverted F-shaped antenna with an input matching circuit. The antenna for the communication dual-band (WLAN 11b; 2.4–2.5 GHz, 11a; 5.15–5.8 GHz) is composed of a folded dipole antenna with enhanced mutual coupling. The proposed antennas are contact with the PMP case (ɛr=3.2) which is used as a substrate for size reduction and compact design.
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Yeum et al. (2010) studied this question.
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