Title :
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
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;
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
DOI :
10.1109/IWAT.2014.6958602
