A built-in performance monitoring/fault isolation and correction (PM/FIC) system for active phased array antennas

Lee, K.M.; Chu, Ruey-Shi; Liu, S.C.

doi:10.1109/aps.1993.385367

Cited by 29 publications

(39 citation statements)

References 1 publication

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“…rod antennas [1], conformal antennas [2], antennas on-chip [3], antennas in package [4] and antennas using a deflector [5] are key issues at this moment. The accuracy and precision of an antenna measurement is very important, for instance, for the calibration of low side-lobe phased arrays [6], [7]. Possible causes of inaccuracies are traced back to the small size of an individual antenna element, the construction tolerances and the influence of the measurement environment.…”

Section: Introductionmentioning

confidence: 99%

Review of the accuracy and precision of mm-wave antenna simulations and measurements

Reniers

Liu

Herben

et al. 2016

2016 10th European Conference on Antennas and Propagation (EuCAP)

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Abstract-Accuracy and precision are important metrics that can be used to validate the quality of the antenna simulation model and antenna measurement with respect to the design criteria of the antenna. Both metrics were applied to identify the influences that caused inaccurate and tolerant results of both simulations and measurements which have been done in the past. Identified influences for simulations are the input parameters like the permittivity and loss tangent, but also the simulation conditions like the port definition. For the measurement these influences are mainly determined by the interconnections, motor backlash and test environment.Index Terms-mm-wave, 60 GHz, antenna measurement, antenna simulation model, accuracy and precision.

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Section: Introductionmentioning

confidence: 99%

Review of the accuracy and precision of mm-wave antenna simulations and measurements

Reniers

Liu

Herben

et al. 2016

2016 10th European Conference on Antennas and Propagation (EuCAP)

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show abstract

“…Sorace"s method implements the power measurement with the element excitation in four orthogonal states and does the element determination with maximum likelihood algorithm [5]. Phase toggling method obtains an element excitation by calculating the difference value between two complex array signals measured when the phase of the element excitation is 0° and 180° [6]. In [7], the measurement probe is the antenna element next to the element being measured and geometric symmetry is the foundation of the method.…”

Section: Introductionmentioning

confidence: 99%

“…When an antenna element is being measured, the remaining ones are turned off or considered another antenna element as a whole. The known single-element measurement techniques are the rotating element electric field vector (REV) method [2][3][4], the method proposed by Sorace [5], the phase toggling method [6] and the mutual coupling method [7]. In the REV method [2][3][4], the output power of the measurement probe is measured with one element excitation traversing all phase states.…”

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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“…Researchers consider calibration techniques as an important tool in the online calibration of an active phased array antenna to establish phase and amplitude corrections for each array element in order to attain the original array performance [4]. In most single element calibration methods, antenna elements are analyzed with one by one measurement technique which are the rotating element electric field vector (REV) method proposed by Sorace [2], the phase toggling method [8], and the mutual coupling method [9]. The REV method exploits variation of the electric field when the phase shift of RF channel changes in the range of [0, 2π] [13].…”

Section: Introductionmentioning

confidence: 99%

A Fast and Accurate Multi-Element Calibration Algorithm of an Active Phased Antenna Array

Fadamiro¹,

Famoriji²,

Ali³

et al. 2019

PIER M

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In this paper, a simple and fast calibration algorithm is proposed for an active phased antenna array measurement of the amplitude and phase of all the antenna elements. Euler's numerical method is used to simultaneously measure and calibrate the array element's electric field and array factor. Each element's phase shifts are periodically varied with a reference state through a feedback to the amplitude and phase calibration units, and their variations are calculated and analyzed for signal calibration. The method is theoretically studied using numerical simulations providing accurate performance and a very low tolerance to errors. This method provides a multiple element far field calibration technique applicable to radar, satellite, and wireless communication.

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A built-in performance monitoring/fault isolation and correction (PM/FIC) system for active phased array antennas

Cited by 29 publications

References 1 publication

Review of the accuracy and precision of mm-wave antenna simulations and measurements

Review of the accuracy and precision of mm-wave antenna simulations and measurements

Multi-Element Phased Array Calibration Method by Solving Linear Equations

A Fast and Accurate Multi-Element Calibration Algorithm of an Active Phased Antenna Array

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