W波段宽带宽角低副瓣类喇叭天线稀布阵

doi:10.16180/j.cnki.issn1007-7820.2023.09.002

Abstract

Abstract:

In order to solve the design problem of wideband wide-angle low sidelobed phased array antenna caused by factors such as large loss, manufacturing process, T/R component size, number of channels and location, a wideband type horn antenna unit in the frequency range of 80~110 GHz is designed in this study, and the antenna standing wave ratio is less than 1.8. Considering the space limitation of T/R components, a 64-element high-gain, low-sidelobe, wide-band and wide-angle scanning array antenna is designed by optimizing the array position, and a small low-profile air waveguide feeding network is designed for the array. The simulation results show that the designed 64 element sparse array has the advantages of wide bandwidth, wide angle, low sidelobes, high gain, easy fabrication and realization, and the gain is higher than 22.6 dB, the sidelobes level is lower than -6.2 dB, and the active VSWR of each element is less than 2 under the scanning range of ±40°.

Key words: W band, low sidelobe, sparse array, pattern synthesis, millimeter wave antenna, beam scanning, broadband, genetic algorithm

CLC Number:

TN822

ZHOU Biao,ZHANG Shuai,ZHANG Dexun,LIN Zhicheng,WANG Jian. Design of Low Sidelobe W-Band Sparse Array Consists of Horn-Like Antenna[J].Electronic Science and Technology, 2023, 36(9): 8-14.

Figures/Tables 12

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References 18

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序号	X_i/mm	Y_i/mm	序号	X_i/mm	Y_i/mm
1	1.572 1	2.075 5	9	3.394 4	13.609 5
2	5.751 1	1.342 9	10	8.250 0	15.500 0
3	10.853 1	3.008 5	11	12.564 2	13.519 0
4	23.965 2	2.068 7	12	18.162 6	13.915 0
5	1.848 2	8.379 9	13	1.386 6	22.672 0
6	6.842 5	8.573 5	14	9.566 2	22.196 9
7	13.750 0	6.500 0	15	12.252 6	20.088 7
8	20.848 8	8.425 8	16	19.250 0	17.500 0

	扫描角度/(°)	实际增益/dB	MSLL/dB
法向	0	26.5	-13.8
	±15	26.1	-10.9
E面扫描	±30	24.2	-8.3
	±40	22.6	-6.2
	±15	25.9	-12.3
H面扫描	±30	24.8	-10.3
	±40	23.5	-8.6

Design of Low Sidelobe W-Band Sparse Array Consists of Horn-Like Antenna

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