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Constant Impedance TEM Horn Antenna: Aperture and Characteristic Impedance’s Impacts on Axial Electric Field

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Abstract

TEM horn antenna with constant characteristic impedance (CCI TEM horn antenna) is a widely used ultra-wideband (UWB) antenna. Considering the peak-to-peak value of the axial electric field (Vpp), how to design such antenna’s characteristic impedance (Z c) has not been involved in previous research. The relationship between Vpp and antenna aperture as well as characteristic impedance is numerical analyzed. The simulation and experimental results show that the optimal aperture is existed to maximize Vpp when the antenna’s length is fixed at the axis. More over, Vpp of the antenna with optimal aperture reaches the maximum value when the characteristic impedance is 280 ohm.

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Acknowledgment

The work is sponsored by the National Nature Science Foundation of China. (No.60501004).

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Authors and Affiliations

  1. Institute of Microwave Communication, Xi’an Jiaotong University, Xi’an, Shaanxi, 710049, China

    Anxue Zhang, Lei Wang, Chen Guo & Yansheng Jiang

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  1. Anxue Zhang
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  2. Lei Wang
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  3. Chen Guo
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  4. Yansheng Jiang
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Correspondence to Anxue Zhang.

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Zhang, A., Wang, L., Guo, C. et al. Constant Impedance TEM Horn Antenna: Aperture and Characteristic Impedance’s Impacts on Axial Electric Field. J Infrared Milli Terahz Waves 30, 1067–1072 (2009). https://doi.org/10.1007/s10762-009-9536-0

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  • DOI: https://doi.org/10.1007/s10762-009-9536-0

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