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http://dx.doi.org/10.12815/kits.2016.15.2.095

Miniaturized λ/4 Folded Microstrip Antenna for Parking Monitoring Base Station System  

Keum, Jae-Min (Chungnam National Univ.)
Ko, Dong-Ok (Chungnam National Univ.)
Jeong, Jae-Yeop (Chungnam National Univ.)
Woo, Jong-Myung (Chungnam National Univ.)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.15, no.2, 2016 , pp. 95-101 More about this Journal
Abstract
In this paper, miniaturized ${\lambda}/4$ folded microstrip antennas is presented for parking monitoring base station system. The proposed antenna reduced a width of the radiating element for miniaturizing a size and we changed an aperture such as folded shape for reducing a length of the antenna by the pertubation effect by reducing a width of the antenna. Finally, the ${\lambda}/2$ length of the folded microstrip antenna to ${\lambda}/4$ folded microstrip antenna was miniaturized by reducing the length. The proposed antenna was designed to receive 425 MHz of center frequency that can be used without permission. Dimensions are $134mm{\times}143.85mm{\times}20.1mm$($0.19{\lambda}{\times}0.2{\lambda}{\times}0.028{\lambda}$, ${\lambda}$ is wavelength at 425 MHz) that are compared with basic microstrip patch antenna miniaturized 97.2%. Also, Measured -10 dB bandwidth was 2.44 MHz(0.57%). On the other hand, measured radiation patterns was 1.82 dBi at E-plane $15^{\circ}$.
Keywords
Microstrip antennas; Perturbation effect; Radiating elements; Miniaturization; base station; Parking monitoring;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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