Title :
Circularly polarized microstrip antenna with a single feed
Author :
Lee, Choon Sae ; Nalbandian, Vahakn ; Schwering, Felix
Author_Institution :
Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX, USA
fDate :
10/1/1996 12:00:00 AM
Abstract :
A novel circularly polarized (CP) microstrip antenna with a single coaxial feed is introduced. The antenna consists of two layers, each radiating fields which at the zenith are perpendicular to each other with 90° phase difference. The CP bandwidth is substantially higher than that of the previously reported CP microstrip antennas with two nearly degenerate modes. In principle, a perfect CP radiation is feasible without the input impedance mismatch. The CP design procedure is independent of the feed location
Keywords :
antenna feeds; antenna radiation patterns; cavity resonators; electromagnetic wave polarisation; microstrip antennas; bandwidth; circularly polarized microstrip antenna; degenerate modes; resonant cavities; single coaxial feed; Antenna feeds; Antenna theory; Bandwidth; Coaxial components; Couplings; Impedance; Microstrip antennas; Polarization; Resonance; Transmission line theory;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
