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Broadband Continuous Transverse Stub (CTS) Array Antenna for High-Power Applications
Yunfei Sun1, Kelin Zhou1, Juntao He1
1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China.
Micromachines
|November 25, 2023
Summary
This study introduces a continuous transverse stub (CTS) array antenna, achieving over 32% bandwidth and high-power capacity. This broadband antenna shows promise for high-power microwave applications.
Area of Science:
- Electrical Engineering
- Antenna Theory
- Microwave Engineering
Background:
- Traditional antennas often struggle to balance broad bandwidth with high-power handling capabilities.
- Achieving efficient impedance matching and controlling electromagnetic wave propagation are critical challenges in antenna design.
Purpose of the Study:
- To propose and validate a novel continuous transverse stub (CTS) array antenna.
- To enhance the antenna's operating frequency bandwidth and high-power handling capacity.
- To assess the antenna's performance for potential high-power microwave (HPM) applications.
Main Methods:
- Utilizing multi-step impedance matching techniques.
- Incorporating T-shaped electromagnetic band-gap (EBG) loading for bandwidth enhancement.
- Employing an H-plane lens horn for feeding the CTS array.
Main Results:
- Achieved a bandwidth capability exceeding 32%.
- Demonstrated a gain variation of less than 3.0 dB across the operating frequency range.
- Measured sidelobe level (SLL) below -18 dB throughout the frequency range.
- Exhibited a power handling capacity of over 80 MW, scalable to GW levels with arraying.
Conclusions:
- The proposed CTS array antenna effectively integrates broad bandwidth and high-power handling.
- The employed impedance matching and EBG loading strategies significantly improve antenna performance.
- The antenna demonstrates strong potential for use in high-power microwave (HPM) systems.
Keywords:
broadband antennacontinuous transverse stub (CTS) arrayelectromagnetic band gap (EBG)high-power microwave (HPM)More Related Videos
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