Title :
A pattern synthesis technique for circularly-polarized spherical microstrip antenna arrays
Author :
Basso Ferreira, Daniel ; Chagas do Nascimento, Daniel ; Bianchi, Ildefonso
Author_Institution :
GSF - Wireless Syst. Div., CPqD - Telecommun. R&D Found., Campinas, Brazil
Abstract :
This paper presents a pattern synthesis technique for circularly-polarized spherical microstrip antenna arrays. It is based on the iterative solution of constrained least squares problems and takes into account the radiation pattern of each array element, including the mutual coupling among them, what increases its accuracy. The far electric field radiated by each array element is represented by interpolation polynomials in the developed code, which make calculation of array excitations faster. An example is provided at the end of the paper to illustrate the use and capability of the proposed technique.
Keywords :
antenna radiation patterns; interpolation; iterative methods; least squares approximations; microstrip antenna arrays; polarisation; polynomial approximation; array element; circularly polarized spherical microstrip antenna arrays; far electric field; interpolation polynomials; iterative solution; least squares problems; mutual coupling; pattern synthesis technique; radiation pattern; Antenna radiation patterns; Arrays; Microstrip; Microstrip antenna arrays; Microstrip antennas; Mutual coupling;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711361