Far field analysis of spherical-circular microstrip antennas by electric surface current models

Wai Yip Tam, K. M. Luk

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)


The far field radiation patterns of a circular disk microstrip antenna mounted on a sphere are studied theoretically. The radiator is replaced by an assumed surface current distribution. The effects of the dielectric layer and the metallic sphere are rigorously taken into account by the spectral domain Green's function formulation. In the spectral domain represented by the vector Legendre series, the Green's function matrix is diagonal. The results are verified by comparison with results obtained from the cavity model theory. The cavity model agrees asymptotically with the present method for the case of a thin dielectric substrate.
Original languageEnglish
Pages (from-to)98-102
Number of pages5
JournalIEE Proceedings H: Microwaves, Antennas and Propagation
Issue number1
Publication statusPublished - 1 Jan 1991
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

Cite this