A Compact Tunable Internal Antenna for Personal Communication Handsets

作者：Nguyen Viet Anh^*; Dao Manh Tuan; Lim Yun Tack; Park Seong Ook

来源：IEEE Antennas and Wireless Propagation Letters, 2008, 7: 569-572.

DOI：10.1109/LAWP.2008.2001918

• Internal planar inverted-F antenna (PIFA)
• multiband antenna
• slot antenna
• tunable antenna
• varactor diode

This letter presents a compact tunable internal planar inverted-F antenna (PIFA) for personal communication handset applications. The antenna operates at following frequency bands: DCS, PCS, UMTS, WiBro, WiMax and/or WiBro phase 3, and WLAN. A single varactor diode is attached to the antenna in a proper location between the main patch and supplemental patch in order to get tuning over the wide frequency range around 2 GHz. The antenna was designed and optimized by using CST microwave studio program. Measured return losses (S(11)) and radiation patterns of the antenna were carried on Anritsu 37377C Vector Network Analyzer and in standard anechoic chamber room. The surface current distributions, the co-polarization and cross-polarization patterns of the antenna are given to demonstrate the antenna's performance.

• 出版日期2008