A Study of Impedance Switched Folded Monopole Antenna with Robustness to Metal for Installation on Metal Walls

Yuta NAKAGAWA  Naobumi MICHISHITA  Hisashi MORISHITA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E102-C   No.10   pp.732-739
Publication Date: 2019/10/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.2019MMP0009
Type of Manuscript: Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
folded monopole antenna,  robust,  metal,  impedance switch,  

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Summary: 
In order to achieve an antenna with robustness to metal for closed space wireless communications, two types of the folded monopole antenna with different input impedance have been studied. In this study, we propose the folded monopole antenna, which can switch the input impedance by a simple method. Both simulated and measured results show that the proposed antenna can improve robustness to the proximity of the metal.