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http://dx.doi.org/10.7471/ikeee.2020.24.1.368

Linear Tapered Slot Rectifying Antenna for Portable UHF-Band RFID System  

Pyo, Seongmin (Dept. of Information and Communication Engineering, Hanbat National University)
Publication Information
Journal of IKEEE / v.24, no.1, 2020 , pp. 368-371 More about this Journal
Abstract
In this paper, we propose a linear tapered slot rectifying antenna for a portable UHF-band RFID system. Since the proposed rectifying antenna does not use a dielectric substrate, the planar antenna is implemented with a thin metal thickness. The rectifier circuit converts input RF power into output DC voltage using a voltage doubler circuit based on two anti-parallel schottky diodes. The rectifying antenna is integrated by the voltage doubler circuit into a linear tapered slot antenna. For conjugate impedance matching of the rectifying circuit and the linear tapered slot antenna, the source-pull method was utilized by adjusting the angle of the tapered slot and the length of the antenna feed line. The proposed antenna prototype has been verified with the electrical and radiation characteristics through RF-DC conversion and far-field radiation test in open space measurement environment. Finally, the proposed antenna is realized to 0.23-wavelength (75 mm) and 0.18-wavelength (60 mm) at 915 MHz center frequency.
Keywords
Linear tapered slot antenna; rectifying antenna; RFID; UHF; Portable device;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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