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논문 기본 정보

자료유형
학술저널
저자정보
Gwang-Hun Jeon (Seoul National University of Science & Technology) Philip Ayiku Dzagbletey (Seoul National University of Science & Technology) Jae-Young Chung (Seoul National University of Science & Technology)
저널정보
한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.21 No.3
발행연도
2021.7
수록면
201 - 209 (9page)

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초록· 키워드

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The non-standalone 5G antenna wireless communication standard and devices operating under Wi-Fi 5, 6, and 6E operate at the 3 ㎓ frequency bands and above. With the increasing demand for these devices and technologies, it is crucial to test them rapidly and economically for commercial usage. This paper presents a dual-polarized Vivaldi antenna for the over-the-air (OTA) measurement of wireless communication devices used in the 3–7 ㎓ band. The dual-polarization performance is realized by vertically intersecting two planar Vivaldi antennas and soldering them at the back end. A three-step 1/4 wavelength balun is applied to the input for the wideband impedance matching of the antenna, which is attached to a Teflon holder for easy mounting. It has excellent performance and is designed to be manufactured at low cost. The fabricated antenna was tested in an anechoic chamber and showed S11 less than -10 ㏈ from 2.63–7.15 GH, and a realized gain of more than 5 ㏈i from 3 ㎓ and above. A measured half-power beam width of more than 60° was realized with symmetric E/H-plane. Much of the required symmetry was achieved with the designed Teflon holder. The antenna has a measured cross-polarization discrimination of better than 15 ㏈ across the entire operating bandwidth.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. ANTENNA DESIGN
Ⅲ. FABRICATION AND MEASUREMENT OF ANTENNA
Ⅳ. CONCLUSION
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