Title :
A novel bandwidth enhancement approach for internal multi-band handset antennas
Author :
Zhao, Anping ; Zhang, Xingyu
Author_Institution :
Adaptive Terminal Team, Nokia Res. Center, Beijing
Abstract :
In this paper, a novel solution that can be adopted to enhance the bandwidth of compact multi-band planar inverted-F antennas (PIFA) is introduced. In this approach the ground plane is divided into two parts and connected with an inductor that can be used to adjust the equivalent length of the ground plane. Studies carried out in this paper demonstrate that with the help of this novel bandwidth improvement technique a compact quad-band (GSM850/GSM900/DCS1800/ PCS1900) PIFA with only a volume of 20 times 40 times 6mm3 can be obtained. The approach can also be used to improve the performance of any other types of mobile antennas.
Keywords :
cellular radio; inductors; mobile antennas; mobile handsets; planar inverted-F antennas; DCS1800; GSM850; GSM900; PCS1900; bandwidth enhancement; ground plane; internal multi-band handset antennas; mobile antennas; planar inverted-F antennas; Antenna measurements; Antennas and propagation; Band pass filters; Bandwidth; Broadband antennas; Helical antennas; Inductors; Mobile antennas; Mobile handsets; Telephone sets;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958528
