Original scientific paper

Performance Analysis of Spherical Stacked-Patch Antennas

Zvonimir Šipuš
Siniša Škokić
Nikša Burum

Abstract

Arrays of circular stacked-patch antennas, mounted in a multilayer spherical structure, are analyzed using the spectral-domain approach and the moment method. The interest for spherical arrays is based on their possibility to scan a single or multiple beams over the entire hemisphere. The influence of structure radius on input impedance, mutual coupling and radiation pattern is investigated. It is shown that the properties the most affected by the variation of structure radius are the resonant frequency and the mutual coupling level. The results confirm the importance of rigorous analysis of curved patch antennas. Furthermore, a laboratory model is built to validate the developed program. The agreement between measured and calculated results is good.

Keywords

spherical patch antennas; conformal antennas; moment methods; antenna array mutual coupling

Hrčak ID:

13559

URI

https://hrcak.srce.hr/13559

Publication date:

15.5.2007.

Article data in other languages: croatian

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