Title :
Analysis of dual-fed circularly-polarized circular patch antennas for educational purposes
Author :
Tinoco-S, A.F. ; Maciel, D.C.M. ; Nascimento, D.C. ; Lacava, J. C da S ; Sant´Anna, S.J.S.
Author_Institution :
Lab. de Antenas e Propagacao, Inst. Tecnol. de Aeronaut., São José dos Campos, Brazil
fDate :
Oct. 29 2011-Nov. 1 2011
Abstract :
Approximated expressions for the radiation characteristics of dual-fed circularly-polarized circular patch antennas are addressed in this article. By fitting the antenna radiation pattern with a cosine function, a simple closed-form expression for the antenna directivity is obtained. As an example, a linear phased array of five right-hand CP elements is presented. In order to validate the proposed approach, our results are compared with simulations performed using the commercial IE3D™ software.
Keywords :
antenna feeds; antenna radiation patterns; engineering education; linear antenna arrays; microstrip antenna arrays; IE3D™ software; antenna directivity; antenna radiation pattern; cosine function; dual-fed circularly-polarized circular patch antennas; educational purposes; linear phased array; radiation characteristics; right-hand CP elements; simple closed-form expression; Antenna radiation patterns; Arrays; Electric fields; Mathematical model; Microstrip; Microstrip antennas; Patch antennas; antenna directivity; circular polarization; dual-fed circular patch; linear phased array; microstrip antennas; radiation pattern; undergraduate education;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International
Conference_Location :
Natal
Print_ISBN :
978-1-4577-1662-1
DOI :
10.1109/IMOC.2011.6169361
