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A Single-Layer Waveguide Slot Array Antenna using Diaphragms for 38 GHz Frequency Band  

황지환 (LG전자(주))
오이석 (홍익대학교 전파통신공학과)
Publication Information
Abstract
This paper present a waveguide slot 16${\times}$16 assay antenna with diaphragms for 38 GHz frequency band. Diaphragms are used to control the impedance and to minimize the return loss of the structure. A 20 dB Chebyshev array of 16 waveguide slots has been designed by optimizing the positions and sizes of the diaphragms. A serial feeding system with $\pi$- and T-junction power dividers has also designed to get a 20 dB Chebyshev power distribution. A 16${\times}$16 slot array was designed for a Fixed Wireless Access System at 38 GHz frequency band, manufactured using a computer controlled milling technique, and measured for the return -19 dB and the frequency band of 740 MHz.
Keywords
Waveguide Slot Array Antenna; Diaphragms; $\pi$-/T -Junction Power Dividers;
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