Radiation pattern evaluation from near-field intensities on planes

Isernia, Tommaso; Leone, Giovanni; Pierri, Rocco

doi:10.1109/8.496257

Cited by 169 publications

(137 citation statements)

References 19 publications

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“…If this scalar field is to be generated through some electromagnetic field source, large amount of error may arise due to the conventional scalar to vector mapping where the longitudinal component of the electric field is neglected [3,4]. There are also reported research results on phase retrieval under the scope of the antenna based problems where the longitudinal component of the electric field is taken into account [5][6][7]. In these algorithms, the intensity criterion is given in terms of the magnitude squares of the scalar components of the vector field.…”

Section: Introductionmentioning

confidence: 99%

Phase Retrieval from Electric Field Intensity for Wide Angle Optical Fields

Kulce¹,

Onural²

2017

Imaging and Applied Optics 2017 (3D, AIO, COSI, IS, MATH, pcAOP)

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Section: Introductionmentioning

confidence: 99%

Phase Retrieval from Electric Field Intensity for Wide Angle Optical Fields

Kulce¹,

Onural²

2017

Imaging and Applied Optics 2017 (3D, AIO, COSI, IS, MATH, pcAOP)

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“…Many phase retrieval techniques using magnitude only measurements have been developed for various application areas [3,4,6,7,9,10,[13][14][15][16][17]20]. In most cases, the known of the source geometry is used in combination with an optimization procedure.…”

Section: Introductionmentioning

confidence: 99%

“…This approach has been validated for antenna characterization on a wide frequency range [0. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] using data obtained from near-field measurements.…”

Section: Introductionmentioning

confidence: 99%

Wideband Validation of a Phase Retrieval Process Applied to Infrared Planar Near-Field Measurements

Ribière-Tharaud¹,

Lambert²,

Lévesque³

2010

PIER B

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Abstract-The framework of our work is the application of a fast method to estimate the radiation pattern of an antenna from the measurement of the electric-field magnitude in the near-field region using infrared (IR) camera. IR acquisition techniques allows quasirealtime measurements of the magnitude of the electrical field on planar surfaces in near-field conditions. However the antennas radiation patterns can only be estimated from near-field electrical magnitude and phase measurements. Consequently a classical plane to plane iterative phase retrieval process has been developed and tested with respect to a large number of configuration parameters such as to find an optimal configuration on a wide frequency range . In order to achieve and validate such a study, some comparisons have been performed on data obtained either by numerical simulation or classical near-field technique based upon radio-frequency (RF) probe scanning on simple horn antennas. Among all the studied parameters we will focus onto the influence of the dynamic range of the measurements on the reconstructed radiation patterns and on validations from experimental results.

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“…As a matter of fact, accurate phase measurements are very difficult to obtain at millimeter and sub-millimeter frequency ranges, unless expensive facilities are used. To overcome this problem, new advanced techniques have been recently developed which evaluate the far-field pattern from the knowledge of the near-field amplitude over one or more testing surfaces (Isernia et al, 1991;1996). Generally speaking, two classes of phaseless methods can be distinguished, the one based on a functional relationship within a proper set of amplitude-only data (Pierri et al, 1999), the other adopting interferometric techniques (Bennet et al, 1976).…”

Section: Hybrid Approach For Phaseless Near-field Measurementsmentioning

confidence: 99%