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http://dx.doi.org/10.5762/KAIS.2016.17.7.334

Design of V-Band Waveguide Slot Sub-Array Antenna for Wireless Communication Back-haul  

Noh, Kwang-Hyun (Institute of Technology, M.H, Co.)
Kang, Young-Jin (Department of Electronic Engineering, Wonkwang University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.7, 2016 , pp. 334-341 More about this Journal
Abstract
In this paper, the study of a waveguide aperture-coupled feed-structured antenna has been conducted for the purpose of applying it to a wireless back-haul system sufficient for high-capacity gigabits-per-second data rates. For this study, a $32{\times}32$ waveguide slot sub-array antenna with a corporate-feed structure was designed and produced. Also, this antenna is used at 57 GHz to 66 GHz in the V-band. The construction of the antenna is a laminated form with radiating parts (outer groove and slot, cavity), a coupled aperture, and feeds in each. The antenna was designed with HFSS, which is based on 3D-FEM, produced with aluminum processed by a precision-controlled milling machine, and assembled after a silver-plating process. The measurement result from analysis of the characteristics of the antenna shows that return loss is less than -12 dB, VSWR < 2.0, and a wide bandwidth ranges up to 16%. An overall first side lobe level is less than -12.3 dB, and a 3 dB beam width is narrow at about $1.85^{\circ}$. Also, antenna gain is 38.5 dBi, offering high efficiency exceeding 90%.
Keywords
Corporate-feed; High-gain & efficiency; Wide bandwidth; Waveguide slot sub-array antenna; V-band Wireless back-haul;
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