標題: Two PIFA-related miniaturized dual-band antennas
作者: Wang, Yu-Shin
Lee, Ming-Chou
Chung, Shyh-Jong
電信工程研究所
Institute of Communications Engineering
關鍵字: dual-band antennas;IEEE 80211 a/b/g;inverted-L antenna;printed Inverted-F Antenna (PIFA);spiraled PIFA
公開日期: 1-Mar-2007
摘要: There are two novel printed inverted-F antenna (PIFA) related dual-band antennas for 2.45 and 5.25 GHz; wireless local area network (WLAN) applications introduced in this paper. One is designed by spiraling the tail of the PIFA and the other is by modifying the feed structure of the PIFA into a coupling configuration. An equivalent transmission line model is proposed to explain the dual-band operation of the spiraling PIFA. The measurement results show that the former antenna has a 10 dB return loss with bandwidth 140 MHz in the 2.45 GHz frequency band and bandwidth 756 MHz at 5.25 GHz, whereas the latter one has the bandwidth 240 MHz at 2.45 GHz and bandwidth 672 MHz at 5.25 GHz. In addition, onmidirectional radiation patterns are achieved at those operating frequency bands with average antenna gains near 0 dBi. The proposed antenna possesses the properties of good performance, compact size (about 50% of a typical PIFA), low profile, and low cost; hence, it is suitable for practical applications in a combo WLAN system.
URI: http://dx.doi.org/10.1109/TAP.2007.891843
http://hdl.handle.net/11536/11048
ISSN: 0018-926X
DOI: 10.1109/TAP.2007.891843
期刊: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume: 55
Issue: 3
起始頁: 805
結束頁: 811
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