Characteristic modes analysis on neutralizing effect of shorted line for two adjacent PIFA elements

Author

Shen Wang ; Arai, Hiroyuki

Author_Institution

Grad. Sch. of Eng., Yokohama Nat. Univ., Yokohama, Japan

fYear

2014

fDate

4-6 March 2014

Firstpage

84

Lastpage

85

Abstract

Two adjacent planar inverted-F antenna (PIFA) elements are used for a beam switchable antenna. But strong mutual coupling between the two closely arranged PIFA elements cannot be ignored. A shorted line connecting the two PIFAs is proved useful to provide neutralizing effect to reduce the mutual coupling. Optimized arrangement of PIFAs and the shorted line is shown, and the theory of characteristic modes is used to analyze that why the optimized shorted line make the mutual coupling reduce and how it works.

Keywords

mobile radio; planar antennas; adjacent PIFA elements; adjacent planar inverted-F antenna elements; beam switchable antenna; characteristic modes analysis; conventional cellular mobile communication system; mutual coupling; Antenna feeds; Antenna radiation patterns; Mutual coupling; Scattering parameters; Switches; PIFA; characteristic modes; mutual coupling; neutralization; shorted line;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology: "Small Antennas, Novel EM Structures and Materials, and Applications" (iWAT), 2014 International Workshop on

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4799-2331-1

Type

conf

DOI

10.1109/IWAT.2014.6958602

Filename

6958602