Σ-separability of the far-field beam-pattern due to an arbitrary excitation-function over an elliptical-rim aperture

P. K. Tam, Kainam Thomas Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

This study is the first in the phase-mode analysis literature to analytically characterise the far-field azimuth-elevation (φ-θ) beam-pattern due to any arbitrary excitation-function on an elliptical-rim aperture. The key findings include: such an arbitrary excitation-function's far-field beam-pattern is not always φ-θ separable. Nonetheless, this beam-pattern is Σ-separable in the sense that it is a sum of φ-θ separable terms. Moreover, this sum may be approximated (with arbitrarily small truncation-error) as a finite-term summation. A ceiling of this truncation-error is derived.
Original languageEnglish
Pages (from-to)128-140
Number of pages13
JournalIET Microwaves, Antennas and Propagation
Volume4
Issue number1
DOIs
Publication statusPublished - 1 Dec 2009

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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