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发两篇手机天线文章

第一篇文章题目是《DIELECTRIC RESONATOR ANTENNA - POSSIBLE CANDIDATE FOR ADAPTIVE ANTENNA ARRAYS》。 N[$bP)h7  
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第二篇文章题目是《Compact dual-frequency PIFA designs using LC resonators》。 ')pXQ  
Lui, G.K.H.; Murch, R.D.; , "Compact dual-frequency PIFA designs using LC resonators," Antennas and Propagation, IEEE Transactions on , vol.49, no.7, pp.1016-1019, Jul 2001 *E"QFirk0  
doi: 10.1109/8.933479 S\7-u\)  
Abstract: We report our investigation into single-feed dual-frequency planar inverted F antenna (PIFA) designs which make use of LC resonators (or “RF traps”). We introduce three basic methods for incorporating the LC resonator into the PIFA, including a variant of the meandering PIFA. Experimental results are provided and these show that dual-frequency operation at 900 (cellular systems) and 1800 MHz (personal communication systems) can be achieved for all three designs < C54cO  
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第三篇文章的题目是《Design and Analysis of a Stacked Dual-Frequency Microstrip Planar Inverted-F Antenna for Mobile Telephone Handsets Using the FDTD》。 J23Tst#s  
Tong, M.-S.; Yang, M.; Chen, Y.; Mittra, R.; , "Design and analysis of a stacked dual-frequency microstrip planar inverted-F antenna for mobile telephone handsets using the FDTD," Antennas and Propagation Society International Symposium, 2000. IEEE , vol.1, no., pp.270-273 vol.1, 2000 MB$K ?"Y  
doi: 10.1109/APS.2000.873760 Cx>iSx  
Abstract: We present the design of a microstrip, dual-frequency planar inverted-F antenna (DF-PIFA) for mobile telephone handsets that can concurrently work at two frequency bands, viz., the GSM and DCS 1800 systems, which operate at 0.9 and 1.8 GHz, respectively. A computer-aided design (CAD) tool, based on the non-uniform finite difference time domain (NU-FDTD) Maxwell solver, is employed to optimize the performance characteristics of the DF-PIFA, including the return loss, impedance match, frequency bandwidth and the far-field radiation pattern

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