Antenna array hardware amplitude and phase compensation using baseband antenna array outputs

Ertel, R.B.; Hu, Zhong; Reed, Jeffrey H.

doi:10.1109/vetec.1999.778336

Cited by 20 publications

(12 citation statements)

References 7 publications

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“…The first set of techniques [5] [6] are based on the injection of an equal phase signal to every channel of the antenna array in order to process the received signal and obtain the compensation matrix. These techniques address the network mismatch issues.…”

Section: Situation For Geoda Smart Antenna Calibrationmentioning

confidence: 99%

Preliminary analysis of the calibration procedures for a geodesic antenna array (GEODA)

Natera

Martínez

Ariet

2008

2008 IEEE Antennas and Propagation Society International Symposium

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Section: Situation For Geoda Smart Antenna Calibrationmentioning

confidence: 99%

Preliminary analysis of the calibration procedures for a geodesic antenna array (GEODA)

Natera

Martínez

Ariet

2008

2008 IEEE Antennas and Propagation Society International Symposium

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“…The second type of method injects an equal phase signal to all of the channels of the antenna array. While this does address the cabling mismatch issues, it does not address mutual coupling effects, antenna differences, or uncertain sensor locations [9]. A practical calibration approach for UCA is required by real system.…”

Section: Introductionmentioning

confidence: 99%

Study of 2D DOA Estimation for Uniform Circular Array in Wireless Location System

Tan¹,

Wang²,

Luo³

et al. 2010

IJCNIS

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“…calculation of the transmit MRC weights in the downlink. Even though the propagation channel is reciprocal, recent work [6,7,8,9] has highlighted that it is certainly not the case for the RF transceivers, which may exhibit significant amplitude and phase mismatches between the uplink and the downlink as well as across the basestation antennas. These mismatches essentially compromise the correct calculation of the transmit MRC weights and may lead to severe performance degradation.…”

Section: Introductionmentioning

confidence: 99%

On the Impact of Multi-antenna RF Transceivers' Amplitude and Phase Mismatches on Transmit MRC

Khaled

Jagannathan

Bahai

et al.

Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005.

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Transmit Maximum-Ratio Combining (transmit MRC) is a popular antenna diversity technique that provides both spatial diversity and array gain in downlink Multiple-Input Single-Output (MISO) links. These gains, however, critically depend on the availability of the downlink Channel State Information (CSI). In time-division duplexing systems, channel reciprocity has been commonly put forth to justify the convenient use of the CSI already acquired from the uplink, in the calculation of the transmit-MRC weights. Recent work has questioned this practice, based on the non-reciprocity of multi-antenna RF transceivers, due to significant amplitude and phase mismatches across the antennas. Furthermore, expensive digital calibration solutions have been proposed to enforce the reciprocity of the multi-antenna RF transceivers. Both the impact of multi-antenna amplitude and phase mismatches and the performance of the proposed calibration approaches have only been assessed via simulations. In this contribution, we propose an alternative statistical analysis of the impact of these mismatches on transmit MRC. This analysis allows a faster and more reliable characterization as well as provides insight into the relative importance of these mismatches. Consequently, sufficient matching requirements can be extracted for the multi-antenna RF transceivers, for which simpler and cheaper calibration solutions can be devised.

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Antenna array hardware amplitude and phase compensation using baseband antenna array outputs

Cited by 20 publications

References 7 publications

Preliminary analysis of the calibration procedures for a geodesic antenna array (GEODA)

Preliminary analysis of the calibration procedures for a geodesic antenna array (GEODA)

Study of 2D DOA Estimation for Uniform Circular Array in Wireless Location System

On the Impact of Multi-antenna RF Transceivers' Amplitude and Phase Mismatches on Transmit MRC

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