Title :
Directivity gain enhancement of small antenna by parasitic patch
Author :
Sakai, S. ; Arai, H.
Author_Institution :
Microelectron. Res. Labs., Mitsubishi Mater. Corp., Saitama, Japan
Abstract :
Gain enhancement for a uni-directional pattern is inconsistent with the demand to use a chip-sized antenna in order to obtain an integrated RF unit design of the cellular handset. To overcome this difficulty, a gain enhancement technique is proposed. For the RF integrated circuit, we may use a chip-sized antenna and a parasitic patch element inside or outside handset case, to obtain a uni-directional pattern. This paper presents an experimental study of the gain enhancement (or radiation pattern control) of a small antenna using a proximity coupled parasitic patch.
Keywords :
antenna radiation patterns; cellular radio; directive antennas; microstrip antennas; mobile antennas; telephone sets; RF integrated circuit; cellular handset; chip-sized antenna; directivity gain enhancement; high permittivity material; integrated RF unit design; parasitic patch element; planar antenna; proximity coupled parasitic patch; radiation pattern control; small antenna; uni-directional pattern; Antenna feeds; Antenna radiation patterns; Dielectric losses; Metalworking machines; Microstrip antennas; Patch antennas; Permittivity; Resonance; Resonant frequency; Telephone sets;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.699144
