The Experts below are selected from a list of 102126 Experts worldwide ranked by ideXlab platform
Cyril Decroze - One of the best experts on this subject based on the ideXlab platform.
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Antenna Radiation Pattern measurements in reverberation chamber using Doppler analysis
2014 IEEE Conference on Antenna Measurements & Applications (CAMA), 2014Co-Authors: Miguel Angel Garcia-fernandez, Cyril Decroze, David CarsenatAbstract:Reverberation chambers (RC's) are electrically large, highly conductive resonant enclosures used as test facility for radiated emissions and immunity measurements on electronic devices. In literature, it is commonly stated that antenna Radiation Patterns cannot be measured, if needed, in RC. On the contrary, in this contribution, a novel technique that allows to perform actual antenna Radiation Pattern measurements in RC is presented. Stationary measurements are performed by locating the antenna under test (AUT) at N different fixed positions along its line-of-sight to a fixed probe antenna per angle under study, and making use of plane wave decomposition and a spatial Doppler analysis, the Doppler power spectral density is obtained, and eventually, the AUT Radiation Pattern. In order to demonstrate its validity, the Radiation Pattern for both E- and H-planes of a horn antenna has been measured in an RC at 10 GHz, in X band, and compared to the ones obtained in anechoic chamber, being the results in good agreement. Moreover, an improvement of this technique is presented, which could permit to obtain an antenna Radiation Pattern by performing only one measurement per angle under study, taking advantage of realtime Doppler effect.
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Actual antenna Radiation Pattern measurements in reverberation chamber
2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014Co-Authors: Miguel Angel Garcia-fernandez, Guillaume Andrieu, Cyril Decroze, David CarsenatAbstract:A reverberation chamber (RC) is an electrically large, highly conductive resonant enclosure used as test facility for radiated emissions and immunity measurements on electronic devices. In current literature, it is commonly stated that antenna Radiation Patterns cannot be measured, if needed, in RC. On the contrary, in this contribution, a novel technique that allows for the first time to perform actual antenna Radiation Pattern measurements in RC is presented. In order to demonstrate its validity, the Radiation Pattern for both E- and H- planes of a horn antenna has been measured in an RC at 10 GHz, in X band, and compared to the ones obtained in anechoic chamber, being the results in good agreement.
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antenna gain and Radiation Pattern measurements in reverberation chamber using doppler effect
IEEE Transactions on Antennas and Propagation, 2014Co-Authors: Miguel Angel Garciafernandez, David Carsenat, Cyril DecrozeAbstract:In a recent paper, a novel technique that allows for the first time to perform actual antenna Radiation Pattern measurements in reverberation chamber (RC) has been presented. Even though its results were in good agreement with the ones obtained in anechoic chamber (AC), it was necessary to repeat stationary measurements locating the antenna under test (AUT) at N different fixed positions along its line-of-sight to a fixed probe antenna per angle under study, thus multiplying by N the measurement time when compared to measuring in AC. On the contrary, in this contribution, an improvement of this technique is presented, obtaining an antenna Radiation Pattern by performing only one measurement per angle under study, taking advantage of real-time Doppler effect. Moreover, the antenna gain is obtained from only one of these measurements, without the need to know the antenna efficiency, by using the Friis transmission equation. In order to demonstrate the validity of this improved technique, the Radiation Pattern for both E- and H- planes and the gain of a horn antenna have been measured in an RC, being the results in good agreement with the ones obtained in AC and the values provided by the antenna manufacturer, respectively.
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Antenna Radiation Pattern Measurements in Reverberation Chamber Using Plane Wave Decomposition
IEEE Transactions on Antennas and Propagation, 2013Co-Authors: Miguel Angel Garcia-fernandez, David Carsenat, Cyril DecrozeAbstract:Reverberation chambers (RCs) are electrically large, highly conductive resonant enclosures used as test facilities for radiated emissions and immunity measurements on electronic devices. In recent literature, it has been claimed that RCs can be an interesting alternative to anechoic chambers as facilities for accurately characterizing the Radiation Pattern of an antenna under test, but this assertion has only been supported by numerical simulations, using elementary dipoles in a scalar two-dimensional RC. On the contrary, in this contribution, a novel technique that allows for the first time to perform actual antenna Radiation Pattern measurements in RC is presented. In order to demonstrate its validity, the Radiation Pattern for both E- and H- planes of a horn antenna has been measured in an RC at 10 GHz, in X band, and compared to the ones obtained in anechoic chamber, being the results in good agreement.
David Carsenat - One of the best experts on this subject based on the ideXlab platform.
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Antenna Radiation Pattern measurements in reverberation chamber using Doppler analysis
2014 IEEE Conference on Antenna Measurements & Applications (CAMA), 2014Co-Authors: Miguel Angel Garcia-fernandez, Cyril Decroze, David CarsenatAbstract:Reverberation chambers (RC's) are electrically large, highly conductive resonant enclosures used as test facility for radiated emissions and immunity measurements on electronic devices. In literature, it is commonly stated that antenna Radiation Patterns cannot be measured, if needed, in RC. On the contrary, in this contribution, a novel technique that allows to perform actual antenna Radiation Pattern measurements in RC is presented. Stationary measurements are performed by locating the antenna under test (AUT) at N different fixed positions along its line-of-sight to a fixed probe antenna per angle under study, and making use of plane wave decomposition and a spatial Doppler analysis, the Doppler power spectral density is obtained, and eventually, the AUT Radiation Pattern. In order to demonstrate its validity, the Radiation Pattern for both E- and H-planes of a horn antenna has been measured in an RC at 10 GHz, in X band, and compared to the ones obtained in anechoic chamber, being the results in good agreement. Moreover, an improvement of this technique is presented, which could permit to obtain an antenna Radiation Pattern by performing only one measurement per angle under study, taking advantage of realtime Doppler effect.
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Actual antenna Radiation Pattern measurements in reverberation chamber
2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014Co-Authors: Miguel Angel Garcia-fernandez, Guillaume Andrieu, Cyril Decroze, David CarsenatAbstract:A reverberation chamber (RC) is an electrically large, highly conductive resonant enclosure used as test facility for radiated emissions and immunity measurements on electronic devices. In current literature, it is commonly stated that antenna Radiation Patterns cannot be measured, if needed, in RC. On the contrary, in this contribution, a novel technique that allows for the first time to perform actual antenna Radiation Pattern measurements in RC is presented. In order to demonstrate its validity, the Radiation Pattern for both E- and H- planes of a horn antenna has been measured in an RC at 10 GHz, in X band, and compared to the ones obtained in anechoic chamber, being the results in good agreement.
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antenna gain and Radiation Pattern measurements in reverberation chamber using doppler effect
IEEE Transactions on Antennas and Propagation, 2014Co-Authors: Miguel Angel Garciafernandez, David Carsenat, Cyril DecrozeAbstract:In a recent paper, a novel technique that allows for the first time to perform actual antenna Radiation Pattern measurements in reverberation chamber (RC) has been presented. Even though its results were in good agreement with the ones obtained in anechoic chamber (AC), it was necessary to repeat stationary measurements locating the antenna under test (AUT) at N different fixed positions along its line-of-sight to a fixed probe antenna per angle under study, thus multiplying by N the measurement time when compared to measuring in AC. On the contrary, in this contribution, an improvement of this technique is presented, obtaining an antenna Radiation Pattern by performing only one measurement per angle under study, taking advantage of real-time Doppler effect. Moreover, the antenna gain is obtained from only one of these measurements, without the need to know the antenna efficiency, by using the Friis transmission equation. In order to demonstrate the validity of this improved technique, the Radiation Pattern for both E- and H- planes and the gain of a horn antenna have been measured in an RC, being the results in good agreement with the ones obtained in AC and the values provided by the antenna manufacturer, respectively.
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Antenna Radiation Pattern Measurements in Reverberation Chamber Using Plane Wave Decomposition
IEEE Transactions on Antennas and Propagation, 2013Co-Authors: Miguel Angel Garcia-fernandez, David Carsenat, Cyril DecrozeAbstract:Reverberation chambers (RCs) are electrically large, highly conductive resonant enclosures used as test facilities for radiated emissions and immunity measurements on electronic devices. In recent literature, it has been claimed that RCs can be an interesting alternative to anechoic chambers as facilities for accurately characterizing the Radiation Pattern of an antenna under test, but this assertion has only been supported by numerical simulations, using elementary dipoles in a scalar two-dimensional RC. On the contrary, in this contribution, a novel technique that allows for the first time to perform actual antenna Radiation Pattern measurements in RC is presented. In order to demonstrate its validity, the Radiation Pattern for both E- and H- planes of a horn antenna has been measured in an RC at 10 GHz, in X band, and compared to the ones obtained in anechoic chamber, being the results in good agreement.
Manoj Stanley - One of the best experts on this subject based on the ideXlab platform.
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3-D Antenna Radiation Pattern Reconstruction in a Reverberation Chamber Using Spherical Wave Decomposition
IEEE Transactions on Antennas and Propagation, 2017Co-Authors: Qian Xu, Yi Huang, Lei Xing, Chaoyun Song, Zhihao Tian, Saqer S. Alja'afreh, Manoj StanleyAbstract:It has been shown that the correlation between the Radiation Patterns of two antennas can be measured in a reverberation chamber (RC). In this paper, it is shown that the self-correlation coefficient of an antenna, defined as the correlation between the Radiation Pattern of an antenna under test (AUT) and a transformed version of itself, can also be measured in an RC. It is found that the 3-D Radiation Pattern of the AUT can be reconstructed from the measured self-correlation coefficient by using spherical wave decomposition. Moreover, the axial ratio of the AUT can also be measured efficiently in the RC, when the Pattern is directional. Numerical simulations and measurements in the RC and in an anechoic chamber have been undertaken. Good agreement is obtained, which confirms the validity of the proposed method. Thus, this novel method can become a very useful, cost-effective, and efficient method for 3-D antenna Radiation Pattern measurement.
Miguel Angel Garcia-fernandez - One of the best experts on this subject based on the ideXlab platform.
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Antenna Radiation Pattern measurements in reverberation chamber using Doppler analysis
2014 IEEE Conference on Antenna Measurements & Applications (CAMA), 2014Co-Authors: Miguel Angel Garcia-fernandez, Cyril Decroze, David CarsenatAbstract:Reverberation chambers (RC's) are electrically large, highly conductive resonant enclosures used as test facility for radiated emissions and immunity measurements on electronic devices. In literature, it is commonly stated that antenna Radiation Patterns cannot be measured, if needed, in RC. On the contrary, in this contribution, a novel technique that allows to perform actual antenna Radiation Pattern measurements in RC is presented. Stationary measurements are performed by locating the antenna under test (AUT) at N different fixed positions along its line-of-sight to a fixed probe antenna per angle under study, and making use of plane wave decomposition and a spatial Doppler analysis, the Doppler power spectral density is obtained, and eventually, the AUT Radiation Pattern. In order to demonstrate its validity, the Radiation Pattern for both E- and H-planes of a horn antenna has been measured in an RC at 10 GHz, in X band, and compared to the ones obtained in anechoic chamber, being the results in good agreement. Moreover, an improvement of this technique is presented, which could permit to obtain an antenna Radiation Pattern by performing only one measurement per angle under study, taking advantage of realtime Doppler effect.
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Actual antenna Radiation Pattern measurements in reverberation chamber
2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014Co-Authors: Miguel Angel Garcia-fernandez, Guillaume Andrieu, Cyril Decroze, David CarsenatAbstract:A reverberation chamber (RC) is an electrically large, highly conductive resonant enclosure used as test facility for radiated emissions and immunity measurements on electronic devices. In current literature, it is commonly stated that antenna Radiation Patterns cannot be measured, if needed, in RC. On the contrary, in this contribution, a novel technique that allows for the first time to perform actual antenna Radiation Pattern measurements in RC is presented. In order to demonstrate its validity, the Radiation Pattern for both E- and H- planes of a horn antenna has been measured in an RC at 10 GHz, in X band, and compared to the ones obtained in anechoic chamber, being the results in good agreement.
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Antenna Radiation Pattern Measurements in Reverberation Chamber Using Plane Wave Decomposition
IEEE Transactions on Antennas and Propagation, 2013Co-Authors: Miguel Angel Garcia-fernandez, David Carsenat, Cyril DecrozeAbstract:Reverberation chambers (RCs) are electrically large, highly conductive resonant enclosures used as test facilities for radiated emissions and immunity measurements on electronic devices. In recent literature, it has been claimed that RCs can be an interesting alternative to anechoic chambers as facilities for accurately characterizing the Radiation Pattern of an antenna under test, but this assertion has only been supported by numerical simulations, using elementary dipoles in a scalar two-dimensional RC. On the contrary, in this contribution, a novel technique that allows for the first time to perform actual antenna Radiation Pattern measurements in RC is presented. In order to demonstrate its validity, the Radiation Pattern for both E- and H- planes of a horn antenna has been measured in an RC at 10 GHz, in X band, and compared to the ones obtained in anechoic chamber, being the results in good agreement.
Qian Xu - One of the best experts on this subject based on the ideXlab platform.
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3-D Antenna Radiation Pattern Reconstruction in a Reverberation Chamber Using Spherical Wave Decomposition
IEEE Transactions on Antennas and Propagation, 2017Co-Authors: Qian Xu, Yi Huang, Lei Xing, Chaoyun Song, Zhihao Tian, Saqer S. Alja'afreh, Manoj StanleyAbstract:It has been shown that the correlation between the Radiation Patterns of two antennas can be measured in a reverberation chamber (RC). In this paper, it is shown that the self-correlation coefficient of an antenna, defined as the correlation between the Radiation Pattern of an antenna under test (AUT) and a transformed version of itself, can also be measured in an RC. It is found that the 3-D Radiation Pattern of the AUT can be reconstructed from the measured self-correlation coefficient by using spherical wave decomposition. Moreover, the axial ratio of the AUT can also be measured efficiently in the RC, when the Pattern is directional. Numerical simulations and measurements in the RC and in an anechoic chamber have been undertaken. Good agreement is obtained, which confirms the validity of the proposed method. Thus, this novel method can become a very useful, cost-effective, and efficient method for 3-D antenna Radiation Pattern measurement.
