Reconfigurable Circularly Polarized End-fire Antenna Design Based on Butterfly Dipoles

SUN Shengtao; CAO Xiangyu; GAO Jun; YANG Huanhuan

doi:10.11999/JEIT210134

Volume 44 Issue 4

Apr. 2022

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Article Navigation > Journal of Electronics & Information Technology > 2022 > 44(4): 1373-1381

SUN Shengtao, CAO Xiangyu, GAO Jun, YANG Huanhuan. Reconfigurable Circularly Polarized End-fire Antenna Design Based on Butterfly Dipoles[J]. Journal of Electronics & Information Technology, 2022, 44(4): 1373-1381. doi: 10.11999/JEIT210134

Citation:

SUN Shengtao, CAO Xiangyu, GAO Jun, YANG Huanhuan. Reconfigurable Circularly Polarized End-fire Antenna Design Based on Butterfly Dipoles[J]. Journal of Electronics & Information Technology, 2022, 44(4): 1373-1381. doi: 10.11999/JEIT210134

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Reconfigurable Circularly Polarized End-fire Antenna Design Based on Butterfly Dipoles

doi: 10.11999/JEIT210134

Information and Navigation College, Air Force Engineering University, Xi’an 710077, China

Funds: The National Natural Science Foundation of China (61671464, 61701523, 61801508), The Natural Science Basic Research Program of Shaanxi Province, China (2019JQ-103, 2020JM-350, 20200108 and 2020022)

Received Date: 2021-02-05
Rev Recd Date: 2021-08-18

Available Online: 2021-09-08

Publish Date: 2022-04-18

Abstract

Abstract

In order to reduce the damage to carrier aerodynamics by the antenna and improve the performance of the antenna in a complex electromagnetic environment, this paper designs a circularly polarized reconfigurable end-fire antenna. The antenna is based on the Substrate Integrated Waveguide (SIW) horn antenna. The front end of the horn is loaded with a phase shifter and butterfly dipoles, and four MEMS switches are loaded between the upper and lower butterfly dipoles. The current flow path can be controlled by the on and off of the switch, so that the antenna radiates two circularly polarized waves respectively. The measured results show that by controlling the on-off combination of the switch, the designed antenna can radiate Left-Hand Circular Polarization (LHCP) or Right-Hand Circular Polarization (RHCP) electromagnetic waves in the 11.24～11.83 GHz frequency band along the end-fire direction. The measurement results are basically consistent with the simulation results, verifying the effectiveness of the design.
- End-fire antenna,
- Circular polarization,
- Polarization reconfigurable

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References(23)

References

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