A partially filled substrate for a rectangular patch antenna

Author

Zarghooni, Behnam ; Denidni, Tayeb A.

Author_Institution

INRS-EMT, Univ. du Quebec, Montréal, QC, Canada

fYear

2011

fDate

3-8 July 2011

Firstpage

884

Lastpage

887

Abstract

In this paper, the design, modeling and simulation of a partially filled substrate for a rectangular patch antenna is presented. The effect of a piece of a magnetic part on the substrate of the patch antenna is investigated. It is shown that the return-loss, the number and frequency of excited modes and consequently the bandwidth of antenna are a function of the place of this magnetic part in the substrate. Then, presenting a lumped-element model for the antenna, it is tried to explain this phenomenon, regarding the role of the magnetic part in changing the elements of the model. Finally, a rule for the relationship between the model elements and the percentage of the filled area under patch, which in fact shows the place of magnetic part, is found. This rule is used as a procedure to design an antenna with a higher bandwidth of more than 10%.

Keywords

microstrip antennas; lumped-element model; rectangular patch antenna; Bandwidth; Filling; Inductors; Magnetic resonance; Microstrip antennas; Substrates; Microstrip antenna; bandwidth; permeability; permittivit;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Conference_Location

Spokane, WA

ISSN

1522-3965

Print_ISBN

978-1-4244-9562-7

Type

conf

DOI

10.1109/APS.2011.5996417

Filename

5996417