The reconstruction of the relative phases and polarization of the electromagnetic field based on amplitude measurements

Nguyen, D.; Berntsen, Svend

doi:10.1109/22.156608

Cited by 5 publications

(7 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We use an algebraic method [8], [9] for the reconstruction of the relative phases. The method is based on the determination of n magnitudes of components in a n-dimensional orthogonal coordinate system and at least 2n − 3 additional amplitude measurements in different directions.…”

Section: Theory Of the Polarization Extraction Methodsmentioning

confidence: 99%

“…Let B 1 , B 2 , and B 3 be the magnitudes of X in three additional directions specified by the unit vectors N 1 , N 2 , and N 3 . [8] and [9] show that the additional magnitudes B 1 , B 2 , and B 3 obtained by rotating the measurement probe through other arbitrary angles cannot lead to a unique reconstruction of the relative phases. But when B 1 , B 2 , and B 3 are determined in the directions (1, 1, 0), (1, 0, 1), and (0, 1, 1) with respect to the Cartesian coordinate system, then a unique reconstruction is obtained.…”

Section: Theory Of the Polarization Extraction Methodsmentioning

confidence: 99%

“…Next, six magnitude measurements are performed with the SA at each measurement position. Then the electric field amplitude of each component is derived using (4) and the relative phases are extracted using the methods of [8] and [9]. Finally, the extracted field using the SA is compared with the true field measured with the NWA.…”

Section: Comparison Parameters For True and Measured Valuesmentioning

confidence: 99%

“…When a SA is used, only power measurements are possible. Therefore, we use the algebraic method of [8] and [9] for the reconstruction of the relative phases, which offers substantial reduction in computational time over methods that use nonlinear optimization [10]. These nonlinear optimization methods are too slow for real-time application because they are based on iterative schemes.…”

Section: Introductionmentioning

confidence: 99%

“…These nonlinear optimization methods are too slow for real-time application because they are based on iterative schemes. By determining six magnitudes, the relative phases can be obtained [8], [9]. Up to now this method was only theoretically described and was not yet applied to electromagnetic field measurements.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Reconstruction of the Polarization Ellipse of the EM Field of Telecommunication and Broadcast Antennas by a Fast and Low-Cost Measurement Method

Joseph

Verloock

Martens

2006

IEEE Trans. Electromagn. Compat.

View full text Add to dashboard Cite

Abstract-A low-cost measurement method for the extraction of the relative phases of the field of base station and broadcast antennas is presented. Our purpose is to determine the polarization of the field at a measurement site using magnitude measurements only. By determining six amplitude components using a spectrum analyzer, the polarization ellipse of the field can be obtained. This low-cost method can be used for outdoor measurements, which is not possible with network analyzers. Using this method and thus knowing the polarization of the incident field we are able to determine more accurately the actual electromagnetic power absorbed in people at a measurement site.Index Terms-Base station antenna, electromagnetic field, measurement, measurement probe, phase extraction, polarization, specific absorption rate (SAR), telecommunication and broadcast antenna.

show abstract

Section: Theory Of the Polarization Extraction Methodsmentioning

confidence: 99%

Section: Theory Of the Polarization Extraction Methodsmentioning

confidence: 99%

Section: Comparison Parameters For True and Measured Valuesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Reconstruction of the Polarization Ellipse of the EM Field of Telecommunication and Broadcast Antennas by a Fast and Low-Cost Measurement Method

Joseph

Verloock

Martens

2006

IEEE Trans. Electromagn. Compat.

View full text Add to dashboard Cite

show abstract

Experimental verification of photon angular momentum and vorticity with radio techniques

Tamburini¹,

Mari²,

Thidé³

et al. 2011

Applied Physics Letters

279

144

View full text Add to dashboard Cite

The experimental evidence that radio techniques can be used for synthesizing and analyzing non-integer electromagnetic (EM) orbital angular momentum (OAM) of radiation is presented. The technique used amounts to sample, in space and time, the EM field vectors and digitally processing the data to calculate the vortex structure, the spatial phase distribution, and the OAM spectrum of the radiation. The experimental verification that OAM-carrying beams can be readily generated and exploited by using radio techniques paves the way to an entirely new paradigm of radar and radio communication protocols. (C) 2011 American Institute of Physics. [doi:10.1063/1.3659466

show abstract

An algebraic method to reconstruct the relative phases and polarization of a complex vector in N dimensions based on 3(N-1) amplitude measurements

Nguyen

1991

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

The reconstruction of the relative phases and polarization of the electromagnetic field based on amplitude measurements

Cited by 5 publications

References 5 publications

Reconstruction of the Polarization Ellipse of the EM Field of Telecommunication and Broadcast Antennas by a Fast and Low-Cost Measurement Method

Reconstruction of the Polarization Ellipse of the EM Field of Telecommunication and Broadcast Antennas by a Fast and Low-Cost Measurement Method

Experimental verification of photon angular momentum and vorticity with radio techniques

An algebraic method to reconstruct the relative phases and polarization of a complex vector in N dimensions based on 3(N-1) amplitude measurements

Contact Info

Product

Resources

About