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Wave Analysis of the Aperture Field Distribution in Probe-Fed Radial Line Planar Antennas
Nobuyasu TAKEMURA Hiroaki MIYASHITA Shigeru MAKINO
IEICE TRANSACTIONS on Communications
Publication Date: 2006/09/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Antennas and Propagation
array antennas, radial line, probe, post, mutual coupling, aperture field distribution, radial line planar antennas, wave analysis,
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We propose a wave analysis method for probe-fed Radial Line Planar Antennas (RLPAs) which yields an approximate solution for the aperture field distribution and scattering by loaded probes. Damping of electric power in the radial line due to radiation by antenna elements is included. The method can accommodate the effect of all conductors, including the terminating wall, by introducing the concept of equivalent posts. We have found good correspondence between the measured and calculated values of the aperture field distribution. The proposed method is effective for general geometries of probe-fed RLPAs.