Potentially Fast Spherical Near-Field Measurements for General Antennas based on Signal Derivatives

Kyriakos Kaslis; Olav Breinbjerg

doi:10.23919/EuCAP53622.2022.9769231

Potentially Fast Spherical Near-Field Measurements for General Antennas based on Signal Derivatives

Kyriakos Kaslis
, Olav Breinbjerg

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

The theory behind spherical near-field antenna measurements places a certain boundary to the number of samples needed for a complete measurement which, subsequently, sets the minimum measurement time, given a specific mechanical scanner speed. Some papers have appeared in the literature addressing this problem, but most of them assume a priori information about the antenna, in addition to the radius of its minimum sphere. The new and unique method presented in this paper may facilitate an almost 50% reduction of the measurement time in spherical near-field antenna measurements by employing, in addition to the received signal itself, also its derivative with respect to the azimuthal angle. Since this method does not assume a priori information beyond the minimum sphere radius, it can be applied universally.

Original language	English
Title of host publication	Proceedings of 16^th European Conference on Antennas and Propagation
Number of pages	5
Publisher	IEEE
Publication date	1 Apr 2022
Pages	1-5
Article number	9769231
ISBN (Print)	978-1-6654-1604-7
DOIs	https://doi.org/10.23919/EuCAP53622.2022.9769231
Publication status	Published - 1 Apr 2022
Event	16^th European Conference on Antennas and Propagation - Madrid, Spain Duration: 27 Mar 2022 → 1 Apr 2022 Conference number: 16 https://www.eucap2022.org/

Conference

Conference	16^th European Conference on Antennas and Propagation
Number	16
Country/Territory	Spain
City	Madrid
Period	27/03/2022 → 01/04/2022
Internet address	https://www.eucap2022.org/

Keywords

Antenna measurements
Azimuthal angle
Computer simulation
Receiving antennas
Europe
Time measurement
Velocity measurement

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10.23919/EuCAP53622.2022.9769231

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Cite this

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title = "Potentially Fast Spherical Near-Field Measurements for General Antennas based on Signal Derivatives",

abstract = "The theory behind spherical near-field antenna measurements places a certain boundary to the number of samples needed for a complete measurement which, subsequently, sets the minimum measurement time, given a specific mechanical scanner speed. Some papers have appeared in the literature addressing this problem, but most of them assume a priori information about the antenna, in addition to the radius of its minimum sphere. The new and unique method presented in this paper may facilitate an almost 50\% reduction of the measurement time in spherical near-field antenna measurements by employing, in addition to the received signal itself, also its derivative with respect to the azimuthal angle. Since this method does not assume a priori information beyond the minimum sphere radius, it can be applied universally.",

keywords = "Antenna measurements, Azimuthal angle, Computer simulation, Receiving antennas, Europe, Time measurement, Velocity measurement",

author = "Kyriakos Kaslis and Olav Breinbjerg",

year = "2022",

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doi = "10.23919/EuCAP53622.2022.9769231",

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publisher = "IEEE",

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note = "16<sup>th</sup> European Conference on Antennas and Propagation, EuCAP 2022 ; Conference date: 27-03-2022 Through 01-04-2022",

url = "https://www.eucap2022.org/",

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AU - Breinbjerg, Olav

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N2 - The theory behind spherical near-field antenna measurements places a certain boundary to the number of samples needed for a complete measurement which, subsequently, sets the minimum measurement time, given a specific mechanical scanner speed. Some papers have appeared in the literature addressing this problem, but most of them assume a priori information about the antenna, in addition to the radius of its minimum sphere. The new and unique method presented in this paper may facilitate an almost 50% reduction of the measurement time in spherical near-field antenna measurements by employing, in addition to the received signal itself, also its derivative with respect to the azimuthal angle. Since this method does not assume a priori information beyond the minimum sphere radius, it can be applied universally.

AB - The theory behind spherical near-field antenna measurements places a certain boundary to the number of samples needed for a complete measurement which, subsequently, sets the minimum measurement time, given a specific mechanical scanner speed. Some papers have appeared in the literature addressing this problem, but most of them assume a priori information about the antenna, in addition to the radius of its minimum sphere. The new and unique method presented in this paper may facilitate an almost 50% reduction of the measurement time in spherical near-field antenna measurements by employing, in addition to the received signal itself, also its derivative with respect to the azimuthal angle. Since this method does not assume a priori information beyond the minimum sphere radius, it can be applied universally.

KW - Antenna measurements

KW - Azimuthal angle

KW - Computer simulation

KW - Receiving antennas

KW - Europe

KW - Time measurement

KW - Velocity measurement

U2 - 10.23919/EuCAP53622.2022.9769231

DO - 10.23919/EuCAP53622.2022.9769231

M3 - Article in proceedings

SN - 978-1-6654-1604-7

SP - 1

EP - 5

BT - Proceedings of 16th European Conference on Antennas and Propagation

PB - IEEE

T2 - 16<sup>th</sup> European Conference on Antennas and Propagation

Y2 - 27 March 2022 through 1 April 2022

ER -

Potentially Fast Spherical Near-Field Measurements for General Antennas based on Signal Derivatives

Abstract

Conference

Keywords

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