Title :
Triplate-fed arbitrarily-shaped annular ring slot antennas
Author :
Chen, C. ; Alexopoulos, N.G.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
In wireless communications, conformal antennas such as the slot antennas are integrated into the portable terminals. However, the energy of the annular ring slot antenna will radiate into the whole space, so a triplate structure is chosen to back-up the slot and increase the radiation efficiency into the upper half space. The mixed potential integral equation (MPIE) based on the moment method is used to analyse the the frequency behaviour of the return loss, impedance and radiation characteristics of this antenna.
Keywords :
antenna feeds; antenna radiation patterns; conformal antennas; electric impedance; electric potential; integral equations; loop antennas; mobile antennas; slot antennas; MPIE; annular ring slot antenna; arbitrarily-shaped annular ring slot antennas; conformal antennas; frequency behaviour; impedance; mixed potential integral equation; moment method; portable terminals; radiation characteristics; radiation efficiency; return loss; triplate structure; triplate-fed antenna; upper half space; wireless communications; Current distribution; Microstrip antennas; Microwave antenna arrays; Patch antennas; Polarization; Resonance; Resonant frequency; Shape; Slot antennas; Stripline;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1995. AP-S. Digest
Conference_Location :
Newport Beach, CA, USA
Print_ISBN :
0-7803-2719-5
DOI :
10.1109/APS.1995.531001
