Iterative probe correction technique for spherical near-field antenna measurements

Laitinen, Tommi; Pivnenko, Sergey; Breinbjerg, Olav

doi:10.1109/lawp.2005.851069

Cited by 29 publications

(16 citation statements)

References 3 publications

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“…The computational complexity of the general high-order probe correction technique for an arbitrary probe, that is based on the scanning, is ( 4 ), where is proportional to the radius of the antenna under test (AUT) minimum sphere in wavelengths. With the present knowledge, the computational complexity of the probe correction for arbitrary probes in the case of the scanning is ( 6 ), which is typically not acceptable.…”

Section: Near-field Antenna Measurements Tommi Laitinenmentioning

confidence: 99%

“…A natural way to overcome the necessity for precise manufacturing of a probe is to apply a more general probe correction technique. Two known techniques for this purpose are the iterative [4] and the general high-order [5] probe correction techniques. A drawback of the iterative technique, though being computationally efficient, is that its applicability range is not precisely known [6].…”

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confidence: 99%

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Double $\phi$-Step $\theta$-Scanning Technique for Spherical Near-Field Antenna Measurements

Laitinen¹

2008

IEEE Trans. Antennas Propagat.

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Abstract-Probe-corrected spherical near-field antenna measurements with an arbitrary probe set certain requirements on an applicable scanning technique. The computational complexity of the general high-order probe correction technique for an arbitrary probe, that is based on the scanning, is ( 4 ), where is proportional to the radius of the antenna under test (AUT) minimum sphere in wavelengths. With the present knowledge, the computational complexity of the probe correction for arbitrary probes in the case of the scanning is ( 6 ), which is typically not acceptable. This paper documents a specific double -step -scanning technique for spherical near-field antenna measurements. This technique not only constitutes an alternative spherical scanning technique, but it also enables formulating an associated probe correction technique for arbitrary probes with the computational complexity of ( 4 ) while the possibility for the exploitation of the advantages of the scanning are maintained.

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Section: Near-field Antenna Measurements Tommi Laitinenmentioning

confidence: 99%

mentioning

confidence: 99%

Double $\phi$-Step $\theta$-Scanning Technique for Spherical Near-Field Antenna Measurements

Laitinen¹

2008

IEEE Trans. Antennas Propagat.

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“…Alternatively, the influence of these modes can be compensated by application of a recently developed iterative probe correction technique [3], which is well suited for non-ideal first-order probes.…”

Section: Fig 9 Spectrum Of Azimuthal Spherical Modes Of the Log-permentioning

confidence: 99%

Log-periodic dipole antenna with low cross-polarization

Pivnenko

2006

2006 First European Conference on Antennas and Propagation

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In this work, log-periodic antennas with improved cross-polarization level were studied. It was found that some modifications of the traditional design lead to an essential improvement of the co-to-cross polarization ratio up to 40 dB. An improved design of a log-periodic dipole antenna with low cross-polarization level is described.Some recommendations regarding improvement of the polarization characteristics of logperiodic antennas in general are also given. It was also found that log-periodic antennas can be attributed to the class of so-called first-order (m = ±1) antennas, which is an important requirement for probes in spherical nearfield antenna measurements.

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“…Since the effect of the probe cannot be neglected when measuring at a close distance from the antenna under test (AUT), probe correction techniques have been developed during the last decades [3]. Besides, some efforts have been made with the aim of enhancing the computational efficiency of the transformation [4].…”

Section: Introductionmentioning

confidence: 99%

A fast single cut spherical near-field-to-far-field transformation using Cylindrical Modes

Salmerón-Ruiz

Silva

Saccardi³

et al. 2014

The 8th European Conference on Antennas and Propagation (EuCAP 2014)

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Abstract-A fast spherical near-field to far-field transformation using single cuts is introduced in this paper. It is based on calculating the Cylindrical Modal Coefficients of each individual near-field ring and processing them independently, considering them as cylinders of zero height and applying probe correction. The reconstruction of each far-field cut is obtained through an inverse Fast Fourier Transform. This procedure provides the opportunity to perform real time transformations due to its low acquisition and processing time. It is a useful tool for applications which do not require a full or accurate characterization, such as measuring the main patterns of an antenna or its most important parameters (peak gain, beam width, side lobe level, etc.).

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Iterative probe correction technique for spherical near-field antenna measurements

Cited by 29 publications

References 3 publications

Double $\phi$-Step $\theta$-Scanning Technique for Spherical Near-Field Antenna Measurements

Double $\phi$-Step $\theta$-Scanning Technique for Spherical Near-Field Antenna Measurements

Log-periodic dipole antenna with low cross-polarization

A fast single cut spherical near-field-to-far-field transformation using Cylindrical Modes

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