Title :
A study on compact antennas and antenna miniaturization for handsets
Author :
Morishita, Hisashi
Author_Institution :
Dept. of Electr. & Electron. Eng., Nat. Defense Acad., Yokosuka
Abstract :
The compact antennas with balanced effect have been introduced with the change of their configuration. These antennas are effective to mitigate the antenna performance degradation due to the human body effect and also have flexible adjustment of antenna impedance and capacity of wideband and multi-resonance characteristics. Second, a downsizing technique of antenna for handset by utilizing a magnetic material has been investigated. Suitable configuration and arrangement of magnetic materials were found by the experiment and simulation. In a result, it was found that approximately 40% miniaturization of PIFA is possible at 900MHz and 2GHz band.
Keywords :
UHF antennas; biological effects of microwaves; broadband antennas; magnetic materials; mobile antennas; mobile handsets; planar inverted-F antennas; antenna impedance; compact antenna miniaturization; frequency 2 GHz; frequency 900 MHz; human body effect; magnetic material; mobile handsets; multi resonance characteristics; planar inverted-F antenna; wideband antenna capacity; Antenna feeds; Broadband antennas; Degradation; Dielectric materials; Dipole antennas; Humans; Magnetic heads; Magnetic materials; Telephone sets; Transmission line antennas;
Conference_Titel :
Antenna Technology: Small Antennas and Novel Metamaterials, 2008. iWAT 2008. International Workshop on
Conference_Location :
Chiba
Print_ISBN :
978-1-4244-1522-9
DOI :
10.1109/IWAT.2008.4511282
