Title :
Suspended patch antennas with electromagnetically coupled inverted microstrip feed for circular polarization
Author_Institution :
NASA Glenn Res. Center, Dynacs Eng. Co. Inc., Cleveland, OH, USA
Abstract :
The paper demonstrates a suspended nearly square patch antenna with offset feed and a square patch antenna with truncated corners for circular polarization. The antennas are excited by an electromagnetically coupled inverted microstrip feed. In addition a new transition between conventional microstrip and inverted microstrip is proposed. The measured results include the axial ratio and the impedance bandwidth of the antennas.
Keywords :
antenna feeds; electromagnetic wave polarisation; microstrip antennas; microstrip transitions; K-band; circular polarization; electromagnetically coupled inverted microstrip feed; microstrip transition; offset feed; square patch antenna; suspended patch antennas; truncated corners; Antenna feeds; Antenna measurements; Bandwidth; Conductors; Dielectric substrates; Electromagnetic coupling; Frequency; Microstrip antenna arrays; Microstrip antennas; Patch antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.875387
