Browsing by Author "Chou, Hsi-Tseng"

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A Compact Dual-band Antenna at Ka-band Frequencies for Next Generation Cellular Applications
(2018-01-01)
Huang, Ting-Jui
;
Hsu, Heng-Tung
;
Chou, Hsi-Tseng
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交大名義發表
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電子工程學系及電子研究所
This paper presents a new design of a compactsized dual -band antenna operating at 28 GHz and 38 GHz for 5G cellular applications. Based on the slot-coupled patch configuration, the antenna exhibited a good impedance matching with reasonable gain of 5.5/6.5 dBi at 28/38 GHz within the band of interest. The measured total radiation efficiency of the antenna was 88.9%/83.7% at 28/38 GHz.
Automobile Anti-Collision Warning Radar Antennas with Tapered Excitations at Millimeter Wave Frequencies and their Design Consideration
(2019-01-01)
Ho, Shih-Kai
;
Chou, Hsi-Tseng
;
Hung, Wei-Ping
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電信工程研究所
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Institute of Communications Engineering
In this paper, a set of phased arrays of antennas are developed for automobile anti-collision warning applications at 76GHz of millimeter wave (mmW) frequencies. This antenna set consists of two 16X8 and one 16x1 series-fed tapered antenna arrays for both long- and short-distance target detections. This antenna set has a radiation gain up to 24dBi and relative sidelobe level of smaller than-20dB in both E- and H planes by implementing a Dolph-Chebyshev distribution of excitation weightings. The return loss of power divider is lower than 25dB. The design consideration incorporating the PCB board effects is also studied to examine the radiation distortion in practical applications. Numerical simulation results are shown to validate the radiation phenomenon while measured data will be shown in the conference presentation.