volume | PIER Journals

2017-06-09

Calibration of Time-Domain Transfer Function for UWB Antennas Based on Antennas Factors in Frequency Domain

Xueqin Zhang,

Dr. Xueqin Zhang

State Key Laboratory of NBC Protection for Civilian

China

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Rui Liang,

Dr. Rui Liang

State Key Laboratory of NBC Protection for Civilian

China

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Xin Li,

Dr. Xin Li

State Key Laboratory of NBC Protection for Civilian

China

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Donglin Meng

Dr. Donglin Meng

National Insititue of Metrology

China

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Progress In Electromagnetics Research M, Vol. 57, 113-118, 2017

doi:10.2528/PIERM17022101

Abstract

A new method for calculating the time-domain (TD) transfer function of ultra-wide band (UWB) antennas, which is used for measuring the electromagnetic pulse (EMP) at VHF, is proposed. The phase of the complex antenna factor is constructed based on the Hilbert transform that describes the relationship between the phase and amplitude of a signal in frequency domain (FD). The detailed steps for calibrating the TD transfer function are discussed, and the calibration uncertainty, whose maximum value equals 2.79 dB, is estimated. The presented method is verified by TEM cell calibration, in which the TD transfer function of a wideband antenna is calculated and used to reconstruct time domain electromagnetic pulse. The results show that the difference between the calibrated result with TEM cell calibration and the reconstructed result is 0.58 dB.

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Xueqin Zhang, Rui Liang, Xin Li, and Donglin Meng, "Calibration of Time-Domain Transfer Function for UWB Antennas Based on Antennas Factors in Frequency Domain," Progress In Electromagnetics Research M, Vol. 57, 113-118, 2017.
doi:10.2528/PIERM17022101

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