Title :
A Modified Grid Array Antenna Radiating a Circularly Polarized Wave
Author :
Nakano, H. ; Osada, H. ; Mimaki, H. ; Iitsuka, Y. ; Yamauchi, J.
Author_Institution :
Hosei Univ., Tokyo
Abstract :
This paper presents a modified grid array antenna whose radiation elements are loops, which are designed to radiate a circularly polarized wave. The array antenna has a low profile, that is, the distance from the loops to the ground plane, H, is extremely small: H = 3.5 mm (= 0.08 wavelength at 7 GHz). Analysis reveals that a modified grid array composed of nine loops has a 2.3% frequency bandwidth for a 3-dB axial ratio criterion, with a maximum gain of approximately 15 dBi.
Keywords :
antenna arrays; electromagnetic wave polarisation; electromagnetic wave propagation; circularly polarized wave radiation; loop radiation element; modified grid array antenna; Antenna arrays; Antennas and propagation; Dielectric substrates; Feeds; Frequency; Linear antenna arrays; Microwave antenna arrays; Microwave propagation; Polarization; Wire; circularly polarization; grid array antenna;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007 International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-1045-3
Electronic_ISBN :
978-1-4244-1045-3
DOI :
10.1109/MAPE.2007.4393671
