Title :
Broadband stacked three-layer circular microstrip antenna arrays
Author :
Revankar, U.K. ; Kumar, Ajit
Author_Institution :
Electron & Radar Dev. Establ., Bangalore, India
Abstract :
The broadband aspects of stacked three-layer electromagnetically coupled circular microstrip antenna arrays are investigated experimentally. Experiments carried out on 8-element linear microstrip antenna arrays, using optimised stacked three-layer circular microstrip antenna elements, configured in E- and H-planes, have exhibited an impedance bandwidth of 20%, with a high gain and a good pattern shape with sidelobe as well as crosspolarisation levels better than -20 dB through a scan angle of 40 degrees from the broadside.
Keywords :
antenna radiation patterns; microstrip antennas; microwave antenna arrays; E-plane configuration; H-plane configuration; S-band; broadband aspects; crosspolarisation levels; gain; impedance bandwidth; linear microstrip antenna arrays; pattern shape; sidelobe levels; stacked three-layer circular microstrip antenna arrays;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921279
