Design of W-band 16 elements full sampling focal plane linear array

Home > Archive>Volume 32, Issue 1, 2013 >23-27

Design of W-band 16 elements full sampling focal plane linear array
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                        CHEN Qi-KeCHEN Qi-Ke
School of Electronic Engineering,University of Electronic Science and Technology
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LI Liang-ChaoLI Liang-Chao
School of Electronic Engineering,University of Electronic Science and Technology
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FAN YongFAN Yong
School of Electronic Engineering,University of Electronic Science and Technology
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YANG Jian-YuYANG Jian-Yu
School of Electronic Engineering,University of Electronic Science and Technology
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ZHANG Yong-HongZHANG Yong-Hong
School of Electronic Engineering,University of Electronic Science and Technology
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Affiliation:School of Electronic Engineering,University of Electronic Science and Technology,Chengdu,School of Electronic Engineering,University of Electronic Science and Technology,Chengdu,School of Electronic Engineering,University of Electronic Science and Technology,Chengdu,School of Electronic Engineering,University of Electronic Science and Technology,Chengdu,School of Electronic Engineering,University of Electronic Science and Technology,Chengdu
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Abstract:

A 16-element focal plane linear array (FPLA) operating at 84～94GHz for passive millimeter-wave imaging was designed. The parabolic reflector with 500mm diameter was used to obtain an angular resolution of 0.47?. The 16 feed-horns are arranged as 4×4 array and the adjacent feed-horns are stagger at vertical direction, which doubles the scene sampling density in vertical direction and satisfies Nyquist theorem. The radiation field of the antenna was calculated in MATLAB by using current distribution method, and the location of the feed horns was optimized based on the results. Imaging results indicate that the full sampling imaging data of scene can be obtained when the FPLA scanning is done in horizontal direction for only one time and imaging time is reduced to half that of the traditional scanning way.

Key words:Focal Plane Array; Passive Imaging; Nyquist Full Sampling; Current Distribution Method

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CHEN Qi-Ke, LI Liang-Chao, FAN Yong, YANG Jian-Yu, ZHANG Yong-Hong. Design of W-band 16 elements full sampling focal plane linear array[J]. Journal of Infrared and Millimeter Waves,2013,32(1):23~27

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Received:December 13,2011
Revised:June 05,2012
Adopted:June 06,2012
Online: March 25,2013
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