论文信息 - The Antenna Feed Structure with the Wide Impedance Bandwidth

The Antenna Feed Structure with the Wide Impedance Bandwidth

A simple but e-cient feed structure for achieving a wide impedance bandwidth is proposed. The feed structure operating as a parallel resonance circuit can provide controllable resonance additionally in the conventional PIFA. It was verifled that the modifled PIFA incor- porated with the proposed feed fully covers Long Term Evolution (LTE) 13, Global System for Mobile Communications (GSM) 850 and 900 bands under VSWR 3:1 with good radiation pat- terns. The average realized antenna e-ciency over the LTE13, GSM850 and GSM900 bands are about 55%. In addition, good radiation patterns are obtained for mobile services at the desired frequency bands.

[1] Hyeongdong Kim,et al. Controlling resonance frequencies in antennas to achieve wideband operation , 2009 .

[2] Hwee Siang Tan,et al. New compact six-band internal antenna , 2004 .

[3] D. Pozar. Microwave Engineering , 1990 .

[4] J. Mclean. A re-examination of the fundamental limits on the radiation Q of electrically small antennas , 1996 .

[5] Ross D. Murch,et al. Compact dual-frequency PIFA designs using LC resonators , 2001 .