Title :
Wideband single-fed circularly polarised patch antenna
Author :
Sudha, T. ; Vedavathy, T.S. ; Bhat, N.
Author_Institution :
Dept. of Electr. & Comput. Eng., N.S.S. Coll. of Eng., Palakkad, India
fDate :
5/27/2004 12:00:00 AM
Abstract :
A novel circularly polarised (CP), single-fed microstrip antenna is presented. The antenna consists of a stacked structure of almost square patches. The proposed design has a reduced antenna size compared to the conventional CP microstrip antenna at a given operating frequency. The impedance and axial ratio bandwidths are large and CP radiation quality is excellent over the entire upper hemisphere. The proposed antenna is suitable for global positioning system (GPS) applications.
Keywords :
UHF antennas; antenna radiation patterns; broadband antennas; electromagnetic wave polarisation; microstrip antennas; axial ratio bandwidths; circularly polarised patch antenna; global positioning system; impedance ratio bandwidths; operating frequency; radiation quality; square patches; stacked structure; upper hemisphere; wideband single fed microstrip antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040407
