东南大学学报（自然科学版）2017，Vol.47Issue(5)：850-855,6.DOI:10.3969/j.issn.1001-0505.2017.05.002
W波段低旁瓣波导缝隙行波阵天线
W-band slotted-waveguide travelling array antenna with low side lobe
檀雷 1张剑 1王文博 1徐金平1
作者信息
- 1. 东南大学毫米波国家重点实验室,南京210096
- 折叠
摘要
Abstract
To solve the problem of the high processing difficulty of W-band slotted-waveguide anten nas and the difficulty of modifying the gap size after processing,an improved method for extracting the conductance function of the slot is proposed.First,according to the process feasibility,the wall thickness of the waveguide and the width of the slot are reasonably pre-determined.Then,the HFSS software is employed to calculate the conductances of the slots with different cutting depths and incli nation angles.Finally,the conductance function curve is drawn by the Matlab soft,and the piecewise approximation is performed to simplify machining complexity.Based on the optimized design resuits,four sets of antennas are fabricated and tested by the compact range measurement method in an anechoic chamber.The results show that in the frequency coverage from 75 to 79 GHz,the gain of the slotted waveguide antenna is higher than 23.5 dBi,and in E-plane the 3 dB beam width and the side lobe level are 1.2° and-20 dB,respectively.The 3 dB beam scanning range in E-plane is 5.5° when the frequency sweeps from 75 to 79 GHz.The measured performances of the four sets of antennas agree well with each other,which verifies the correctness and the effectiveness of the proposed method.关键词
波导缝隙天线/行波阵/低旁瓣/波束扫描/紧缩场Key words
slotted-waveguide antenna/traveling-wave array/low side lobe/beam scanning/compact range分类
信息技术与安全科学引用本文复制引用
檀雷,张剑,王文博,徐金平..W波段低旁瓣波导缝隙行波阵天线[J].东南大学学报（自然科学版）,2017,47(5):850-855,6.
