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논문 기본 정보

자료유형
학술대회자료
저자정보
Won Gook Hong (National Defense Academy) Naobumi Michishita (National Defense Academy) Yoshihide Yamada (National Defense Academy)
저널정보
대한전자공학회 ITC-CSCC :International Technical Conference on Circuits Systems, Computers and Communications ITC-CSCC : 2009
발행연도
2009.7
수록면
22 - 25 (4page)

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초록· 키워드

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To expand the applicability of the RFID, UHF tags for metal plate use were studying. The low-profile, small, normal-mode helical antenna (NMHA) that can be used on metallic plates was developed. The antenna size was very small such as 0.05 wavelengths. Excellent read range was ensured. However, the impedance matching tap structure was not sufficiently small. This paper developed a simple impedance matching structure by replacing the feed point to the end of the NMHA. First of all, the impedance transform characteristics of the feed point shift were shown. Next, some impedance matching structures for IC chips were clarified. It was shown that 0.7㏈d antenna gain was achieved by the 0.05 wavelength size antenna. Moreover, through the measurement results of read ranges, comparable read ranges to the commercial metal proximity type tags could be achieved by the developed NMHA.

목차

Abstract
Ⅰ. INTRODUCTION
Ⅱ. EFFECTS OF OFFSET FEED
Ⅲ. OPEN STUB STRUCTURE
Ⅳ. SHUNT STUB STRUCTURE
Ⅴ. READ RANGE
Ⅵ. CONCLUSIONS
ACKNOWLEDGEMENT
REFERENCES

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