Title :
A balance-fed planar built-in antenna
Author :
Ogawa, Koichi ; Iwai, Hiroshi ; Koyanagi, Yoshio
Author_Institution :
Device Eng. Dev. Center, Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
Abstract :
In this paper we present a newly developed planar built-in antenna, referred to as the balance-fed planar inverted-F antenna (BPFA), for the IMT-2000, 3rd generation (3G) mobile communication system. The BPFA features balanced operation which leads to a significant reduction of induced currents on the telephone body, thus reducing the operator´s hand effect. In addition, the BPFA is expected to show a higher effective gain in a cellular communication environment because of its good polarization property suitable for a multipath environment.
Keywords :
UHF antennas; antenna radiation patterns; cellular radio; mobile antennas; telephone sets; 2.14 GHz; 3G mobile communication system; 3rd generation mobile communication system; IMT-2000; balance-fed planar built-in antenna; cellular radio; effective gain; multipath environment; operator hand effect; polarization property; radiation patterns; 3G mobile communication; Coaxial cables; Communication industry; Dipole antennas; Feeds; Humans; Impedance; Mobile antennas; Mobile communication; Telephony;
Conference_Titel :
Antennas, Propagation and EM Theory, 2000. Proceedings. ISAPE 2000. 5th International Symposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6377-9
DOI :
10.1109/ISAPE.2000.894878
