Fast Measurement Technique for Phased Array Calibration

Takahashi, Toru; Konishi, Yoshihiko; Makino, Shigeru; Ohmine, Hiroyuki; Nakaguro, H.

doi:10.1109/tap.2008.924682

Cited by 101 publications

(44 citation statements)

References 12 publications

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“…mentioned above to reduce measurement errors because the employed array antenna has mutual couplings [72]. The rotating element electric field vector (REV) method has been developed as a practical calibration technology for a phased array antenna, that can measure both amplitude and phase of excitation by only the amplitude receiver [73]. Also, a decoupling method to reduce coupling, matching loss, and pattern distortion due to mutual coupling has been studied [74].…”

Section: Calibration Techniques Of Array Antennasmentioning

confidence: 99%

Recent Technologies in Japan on Array Antennas for Wireless Systems

Hirokawa

Chen

Fujimoto

et al. 2017

IEICE Trans. Commun.

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SUMMARY Array antenna technology for wireless systems is highly integrated for demands such as multi-functionality and high-performance. This paper details recent technologies in Japan in design techniques based on computational electromagnetics, antenna hardware techniques in the millimeter-wave band, array signal processing to add adaptive functions, and measurement methods to support design techniques, for array antennas for future wireless systems. Prospects of these four technologies are also described. key words: array antenna, multiple antenna, computational electromagnetics, millimeter-wave, antenna measurement, signal processing

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Section: Calibration Techniques Of Array Antennasmentioning

confidence: 99%

Recent Technologies in Japan on Array Antennas for Wireless Systems

Hirokawa

Chen

Fujimoto

et al. 2017

IEICE Trans. Commun.

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“…The system block diagram and measurement parameters are explained in figure 3 and table I. All RF elements in APAA were calibrated with REV (Rotating-element Electricfield Vector) method in anechoic chamber [22]. Transmitted signals were generated by a signal generator (SG), and they were transmitted from 48-element APAA via phase control units.…”

Section: A Channel Measurement Setupmentioning

confidence: 99%

Performance Evaluation of 44GHz Band Massive MIMO Based on Channel Measurement

Taira

Iura

Nakagawa

et al. 2015

2015 IEEE Globecom Workshops (GC Wkshps)

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5th generation mobile communication system using higher frequency band has gotten much attention, and massive-MIMO technologies have been expected to improve spectral efficiency dramatically. In order to reduce the complexity of massive-MIMO base station, the combination of analog beamforming (APAA: Active Phased Array Antenna) and digital MIMO signal processing for the multi-beam multiplexing is one of the promising approaches. In this paper, channel capacity evaluation with 44GHz-band APAA measurement results will be carried out and the possibility of large capacity transmission in LOS environment is shown. 44GHz band channel parameters -AoA, AoD, delay spread, etc. -will be shown and transmit performance results using cluster model are presented.

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“…Planar near-field measurements are required in [11][12][13][14] and far-field radiation patterns are measured in [16][17]. The calibration methods with a single measurement probe at a single position usually have less hardware facilities and simpler data processing algorithms [18][19][20][21][22][23]. The extended REV method [18] can simultaneously measure relative amplitude/phase of several elements.…”

Section: Introductionmentioning

confidence: 99%

“…The calibration methods with a single measurement probe at a single position usually have less hardware facilities and simpler data processing algorithms [18][19][20][21][22][23]. The extended REV method [18] can simultaneously measure relative amplitude/phase of several elements. The array signal power is measured when the phases of the involved multiple antennas are successively shifted with specified phase intervals.…”

Section: Introductionmentioning

confidence: 99%

Multi-Element Phased Array Calibration Method by Solving Linear Equations

Long

Ouyang

Feng

et al. 2017

IEEE Trans. Antennas Propagat.

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In this paper, we propose a new phased array calibration method that measures all antenna element excitations simultaneously. The method has the minimum number of measurements among the known similar methods. The auxiliary antenna used for measurement is placed in either near-field or far-field region to receive the complex array signals during the change of the antenna element phase settings. According to the superposition principle of electromagnetic field, a set of linear equations concerning the element signals are created with the measured array signals. With the scattering parameters between the measurement probe antenna and the element antennas pre-stored or simplified, we calculate the excitations of the antenna elements by solving the linear equations. The coefficient matrix of the linear equations determines the antenna element phase settings for the array signal measurements. The principles for the selection of the coefficient matrix concerning accuracy, complexity and hardware requirements are presented. A recursive matrix-forming method is presented for the matrix selection in this paper. Numerical simulations and experiment results validated the effectiveness of the proposed method.

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Fast Measurement Technique for Phased Array Calibration

Cited by 101 publications

References 12 publications

Recent Technologies in Japan on Array Antennas for Wireless Systems

Recent Technologies in Japan on Array Antennas for Wireless Systems

Performance Evaluation of 44GHz Band Massive MIMO Based on Channel Measurement

Multi-Element Phased Array Calibration Method by Solving Linear Equations

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