Frequency-reconfigurable two-port antenna for mobile phone operating over multiple service bands
暂无分享,去创建一个
A frequency-reconfigurable antenna for a mobile phone with small volume is proposed. The proposed antenna consists of a planar inverted F-antenna (PIFA) with volume of 4times36times5timesmm 3 and a monopole antenna embedded in the same space. The two antennas are excited by two separate feeds with a common ground plane. A switch is used in the PIFA for frequency-reconfigurable operation. The PIFA can cover either LTE (698-806-MHz) or GSM900 (880-960-MHz) depending on the state of the switch. The monopole antenna can cover either PCS1900 (1.85-1.99-GHz) and m-WiMAX (3.4-3.8-GHz) or WLAN 802.11a (5.15-5.35-GHz) depending on the state of the switch. The antenna gain is in the range of -1.99-0.61-dBi over 700-MHz-2-GHz bands and 2.39-4.62-dBi over the bands higher than 3-GHz. The proposed antenna is shown to have good radiation characteristics.
[1] R. Murch,et al. A compact PIFA suitable for dual-frequency 900/1800-MHz operation , 1998 .
[2] Kin-Lu Wong,et al. Wideband internal folded planar monopole antenna for UMTS/WiMAX folder-type mobile phone , 2006 .
[3] Gwo-Yun Lee,et al. A dual-band planar inverted-F patch antenna with a branch-line slit , 2002 .