Design of TEM horn antenna based on distributed impedance end-loading

Yuan Yanning; Feng Qiang; Yi Chaolong; Xi Xiaoli

doi:10.11884/HPLPB202133.200198

Volume 33 Issue 2

Jan. 2021

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Yuan Yanning, Feng Qiang, Yi Chaolong, et al. Design of TEM horn antenna based on distributed impedance end-loading[J]. High Power Laser and Particle Beams, 2021, 33: 023005. doi: 10.11884/HPLPB202133.200198

Citation:

Yuan Yanning, Feng Qiang, Yi Chaolong, et al. Design of TEM horn antenna based on distributed impedance end-loading[J]. High Power Laser and Particle Beams, 2021, 33: 023005. doi: 10.11884/HPLPB202133.200198

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Design of TEM horn antenna based on distributed impedance end-loading

doi: 10.11884/HPLPB202133.200198

1.
School of Automation and Information Engineering, Xi’an University of Technology, Xi’ an 710048, China
2.
Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi’an 710024, China

Received Date: 2020-07-13
Rev Recd Date: 2020-09-07
Publish Date: 2021-01-07

Abstract

Abstract

Based on the consideration of power capacity and aperture matching to extend the low-frequency operating bandwidth, an ultra-wideband TEM horn antenna with a distributed impedance end-loading structure was designed. First, the gradual coaxial-flat balun structure was optimized, which expands the working bandwidth of the feed structure and improves the feed efficiency. Secondly, the distributed impedance matching design was performed on the exponential TEM horn antenna, and its port characteristics and radiation characteristics were significantly improved. The power pattern and energy pattern were used to evaluate the radiation effect of the antenna. The experimental results show that, compared with the exponential TEM horn antenna, after the distributed impedance matching structure is loaded, the antenna low-frequency bandwidth is widened by 330 MHz, the peak-to-peak value of the antenna main axis radiated electric field is increased by 10%, and the feed efficiency is increased by 17%.
- ultra-wideband,
- TEM horn antenna,
- distributed impedance matching,
- power pattern,
- energy pattern

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References(12)

References

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