Analysis and network modeling of an aperture-coupled microstrip patch antenna

Authors
Citation
Jp. Kim et Ws. Park, Analysis and network modeling of an aperture-coupled microstrip patch antenna, IEEE ANTENN, 49(6), 2001, pp. 849-854
Citations number
19
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
ISSN journal
0018-926X → ACNP
Volume
49
Issue
6
Year of publication
2001
Pages
849 - 854
Database
ISI
SICI code
0018-926X(200106)49:6<849:AANMOA>2.0.ZU;2-V
Abstract
This paper describes a method for analyzing an aperture-coupled microstrip patch antenna in order to develop an improved transmission-line model that reflects the effects of structure parameters, including Inclination angles and offset distances of the aperture with respect to the feed line or the p atch, The equivalent circuit consists of three ideal transformers, extended slotlines terminated by a short circuit, and microstrip transmission lines with open stubs, Two transformers are introduced to take account of the in teraction between the aperture field and two orthogonal patch modes, while the third transformer reflects the coupling between the aperture and the fe ed line, The turn ratios of the transformers are calculated efficiently. Th e microstrip open stubs in the patch are then replaced by well-known capaci tance and radiation conductance equivalents. The proposed transmission-line model is then applied to several variations and shown to produce accurate antenna impedances.