Title :
Broadband cavity-backed and capacitively probe-fed microstrip patch arrays
Author :
Gonzalez, Manuel A. ; Zapata, J. ; Encinar, J.A.
Author_Institution :
Dept. de Electromagnetismo y Teoria de Circuitos, Univ. Politecnica de Madrid, Spain
Abstract :
The full wave analysis method developed Gonzalez, Encinar, Zapata and Lambea, (see IEEE Trans. Antennas Propagat., vol.46, no.2, 1998) is applied to investigate cavity-backed microstrip patch arrays with thick substrates and coaxially fed through a capacitive coupling. The objective is to obtain a broad bandwidth without a decrease in the scan coverage and efficiency and without the drawback of a high cross-polarisation owing to the surface-wave generation.
Keywords :
antenna feeds; antenna radiation patterns; capacitance; electromagnetic wave polarisation; microstrip antenna arrays; broad bandwidth; broadband cavity-backed antenna; capacitive coupling; capacitively probe-fed antenna; efficiency; full wave analysis method; low cross-polarisation; microstrip patch arrays; radiation patterns; scan coverage; thick substrates; Antennas and propagation; Bandwidth; Coaxial components; Microstrip antenna arrays; Microstrip antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.702141
