Abstract
In this paper, a tapered slot antenna capable of ultra-wideband communication was designed. In the proposed antenna, rectangular slits were inserted to enhance the bandwidth and reduce the area of the antenna. The rectangular slit-inserted tapered slot antenna operated at a bandwidth of 8.45 GHz, and the bandwidth improved upon the basic tapered slot antenna by 4.72 GHz. The radiation pattern of the antenna was suitable for location recognition in a certain direction owing to an appropriate 3 dB beam width. The antenna gain was analyzed within the proposed bandwidth, and the highest gain characteristic at 7.55 dBi was exhibited at a 5-GHz band. The simulation and measurement results of the proposed tapered slot antenna were similar.
Highlights
The number of applications for wireless communication systems are increasing because of interest from industry, the medical and scientific communities, and various others
Possible antenna structures include bow-tie, log-periodic, spiral, fractal, and tapered slot. The antennas with these structures are applied to various wireless communication systems depending on the antennas’ shape and characteristics, and in the UWB communication system (Kim et al 2015; Yoon et al 2015)
In the case of a rectangular slitinserted tapered slot antenna, the 7.2 GHz bandwidth satisfied the requirements for −10 dB S11 and VSWR ≤ 2 in the 3.64–10.84 GHz bandwidth, and improvement was seen in the middle-frequency bandwidth of Structure-1
Summary
The number of applications for wireless communication systems are increasing because of interest from industry, the medical and scientific communities, and various others. In the academic field, many studies on antennas types such as wideband, multiband, and compact are being conducted. An antenna capable of wideband communication is proposed. Possible antenna structures include bow-tie, log-periodic, spiral, fractal, and tapered slot. The antennas with these structures are applied to various wireless communication systems depending on the antennas’ shape and characteristics, and in the UWB communication system (Kim et al 2015; Yoon et al 2015).
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