Title :
Coplanar-square-patch antenna for Iridium satellite reception
Author :
Krzysztofik, Wojciech J.
Author_Institution :
Inst. of Telecommun., Wroclaw Univ. of Technol., Warsaw
Abstract :
A design of a broadband circularly polarized coplanar-square-patch antenna, CSPA, for Iridium satellite reception via handset is proposed and experimentally studied. With the introduction of some asymmetry in the structure to a single-feed coplanar-sqaure-patch microstrip antenna, it is possible to excite two orthogonal degenerate resonant modes for circular polarization (CP) radiation. Experimental results of constructed prototypes show that the obtained 3-dB axial-ratio bandwidths can reach as large as 8.5%. The proposed antenna has a peak antenna gain of about 4.2 dBi, with efficiency 85% for frequencies within the CP. Some prototypes of the proposed CP design CSPA antennas have been implemented and experimental results are presented and discussed.
Keywords :
antenna feeds; antenna radiation patterns; microstrip antennas; planar antennas; polarisation; satellite communication; broadband antenna; circular polarization radiation; circularly polarized coplanar antenna; efficiency 85 percent; handset; iridium satellite reception; orthogonal degenerate resonant modes; single-feed microstrip antenna; square patch antenna; Antenna feeds; Bandwidth; Broadband antennas; Frequency; Microstrip antennas; Microwave antennas; Polarization; Resonance; Satellite antennas; Slot antennas;
Conference_Titel :
Antennas and Propagation, 2006. EuCAP 2006. First European Conference on
Conference_Location :
Nice
Print_ISBN :
978-92-9092-937-6
DOI :
10.1109/EUCAP.2006.4584566
