Title :
High efficiency achievement by dielectric material loading for a piled type small meander line antenna
Author :
Michishita, Naobumi ; Yamada, Yoshihide
Author_Institution :
Nat. Defense Acad.
Abstract :
For UHF RFID systems, small meander line antennas are proposed. In this paper, achievements of high efficiency by dielectric material loading are shown. Because a meander line structure becomes sparse by loading higher materials, conducting metal width can be spread. Accordingly, ohmic resistance can be decreased and the antenna efficiency can be improved. The dielectric loaded piled meander line antenna can be realized the efficiency of -1.1 dB at antenna length of 0.05 wavelength
Keywords :
UHF antennas; conducting materials; dielectric materials; radiofrequency identification; UHF RFID systems; conducting metal; dielectric material loading; ohmic resistance; piled type small meander line antenna; Conducting materials; Dielectric materials; Dielectric substrates; Electric resistance; Erbium; Inorganic materials; Loaded antennas; Mutual coupling; Radiofrequency identification; UHF antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551601
