Millimeter-wave FMCW radar development using SIW butler matrix for time domain beam steering

Pascual Hilario Re; Cristian Alistarh; Symon Podilchak; George Goussetis; John Thompson; Jaesup Lee

Millimeter-wave FMCW radar development using SIW butler matrix for time domain beam steering

Pascual Hilario Re, Cristian Alistarh, Symon Podilchak, George Goussetis, John Thompson, Jaesup Lee

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

One possible limitation for automotive collision avoidance radar applications is unwanted antenna beam squinting over frequency. To circumvent this problem, this paper studies a novel K-band automotive radar that improves transmitted power distribution over the horizontal plane using a substrate-integrated waveguide (SIW) 4x4 Butler matrix (BM) beamforming network. The 24 GHz system, which is scalable to 77 GHz, uses frequency modulated continuous-wave (FMCW) transmission and scans the horizontal plane by switching the four input ports of the BM in time. The radar system has been calibrated and measured in an anechoic chamber and angular target position estimates have been completed using digital beamforming. These tests are also compared to a more conventional single-input multiple-output (SIMO) and multiple-input multiple-output (MIMO) FMCW radar configurations and it is shown that the proposed BM radar offers improvements in terms of higher return powers, improved signal-to-noise ratios, and enhanced field-of-view.

Original language	English
Title of host publication	2019 16th European Radar Conference (EuRAD)
Publisher	IEEE
Pages	141-144
Number of pages	4
ISBN (Electronic)	9782874870576
Publication status	Published - 21 Nov 2019
Event	16th European Radar Conference 2019 - Paris, France Duration: 2 Oct 2019 → 4 Oct 2019

Conference

Conference	16th European Radar Conference 2019
Abbreviated title	EuRAD 2019
Country/Territory	France
City	Paris
Period	2/10/19 → 4/10/19

Keywords

Automotive radar
Butler Matrix
Multiple input multiple output (MIMO) radar
Short-range radar (SRR)
Substrate-integrated waveguide (SIW)

ASJC Scopus subject areas

Signal Processing
Instrumentation

Cite this

@inproceedings{14d66cb3cfb241819163f5c0027af66e,

title = "Millimeter-wave FMCW radar development using SIW butler matrix for time domain beam steering",

abstract = "One possible limitation for automotive collision avoidance radar applications is unwanted antenna beam squinting over frequency. To circumvent this problem, this paper studies a novel K-band automotive radar that improves transmitted power distribution over the horizontal plane using a substrate-integrated waveguide (SIW) 4x4 Butler matrix (BM) beamforming network. The 24 GHz system, which is scalable to 77 GHz, uses frequency modulated continuous-wave (FMCW) transmission and scans the horizontal plane by switching the four input ports of the BM in time. The radar system has been calibrated and measured in an anechoic chamber and angular target position estimates have been completed using digital beamforming. These tests are also compared to a more conventional single-input multiple-output (SIMO) and multiple-input multiple-output (MIMO) FMCW radar configurations and it is shown that the proposed BM radar offers improvements in terms of higher return powers, improved signal-to-noise ratios, and enhanced field-of-view.",

keywords = "Automotive radar, Butler Matrix, Multiple input multiple output (MIMO) radar, Short-range radar (SRR), Substrate-integrated waveguide (SIW)",

author = "{Hilario Re}, Pascual and Cristian Alistarh and Symon Podilchak and George Goussetis and John Thompson and Jaesup Lee",

year = "2019",

month = nov,

day = "21",

language = "English",

pages = "141--144",

booktitle = "2019 16th European Radar Conference (EuRAD)",

publisher = "IEEE",

address = "United States",

note = "16th European Radar Conference 2019, EuRAD 2019 ; Conference date: 02-10-2019 Through 04-10-2019",

}

TY - GEN

T1 - Millimeter-wave FMCW radar development using SIW butler matrix for time domain beam steering

AU - Hilario Re, Pascual

AU - Alistarh, Cristian

AU - Podilchak, Symon

AU - Goussetis, George

AU - Thompson, John

AU - Lee, Jaesup

PY - 2019/11/21

Y1 - 2019/11/21

N2 - One possible limitation for automotive collision avoidance radar applications is unwanted antenna beam squinting over frequency. To circumvent this problem, this paper studies a novel K-band automotive radar that improves transmitted power distribution over the horizontal plane using a substrate-integrated waveguide (SIW) 4x4 Butler matrix (BM) beamforming network. The 24 GHz system, which is scalable to 77 GHz, uses frequency modulated continuous-wave (FMCW) transmission and scans the horizontal plane by switching the four input ports of the BM in time. The radar system has been calibrated and measured in an anechoic chamber and angular target position estimates have been completed using digital beamforming. These tests are also compared to a more conventional single-input multiple-output (SIMO) and multiple-input multiple-output (MIMO) FMCW radar configurations and it is shown that the proposed BM radar offers improvements in terms of higher return powers, improved signal-to-noise ratios, and enhanced field-of-view.

AB - One possible limitation for automotive collision avoidance radar applications is unwanted antenna beam squinting over frequency. To circumvent this problem, this paper studies a novel K-band automotive radar that improves transmitted power distribution over the horizontal plane using a substrate-integrated waveguide (SIW) 4x4 Butler matrix (BM) beamforming network. The 24 GHz system, which is scalable to 77 GHz, uses frequency modulated continuous-wave (FMCW) transmission and scans the horizontal plane by switching the four input ports of the BM in time. The radar system has been calibrated and measured in an anechoic chamber and angular target position estimates have been completed using digital beamforming. These tests are also compared to a more conventional single-input multiple-output (SIMO) and multiple-input multiple-output (MIMO) FMCW radar configurations and it is shown that the proposed BM radar offers improvements in terms of higher return powers, improved signal-to-noise ratios, and enhanced field-of-view.

KW - Automotive radar

KW - Butler Matrix

KW - Multiple input multiple output (MIMO) radar

KW - Short-range radar (SRR)

KW - Substrate-integrated waveguide (SIW)

UR - http://www.scopus.com/inward/record.url?scp=85076214447&partnerID=8YFLogxK

M3 - Conference contribution

SP - 141

EP - 144

BT - 2019 16th European Radar Conference (EuRAD)

PB - IEEE

T2 - 16th European Radar Conference 2019

Y2 - 2 October 2019 through 4 October 2019

ER -

Millimeter-wave FMCW radar development using SIW butler matrix for time domain beam steering

Abstract

Conference

Keywords

ASJC Scopus subject areas

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