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Research on high-power microwave experiments for a magnetic-enhanced reflectarray antenna.

Liang Xu1,2, Meixi Jin2, Lai Wei2

  • 1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China.

The Review of Scientific Instruments
|March 9, 2026
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Summary
This summary is machine-generated.

Magnetic enhanced reflectarray antenna (MERA) elements show high power handling capacity (PHC) comparable to traditional antennas. This study experimentally verifies MERA feasibility in high-power microwave applications, reaching 1 GW/m2 PHC.

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Area of Science:

  • Electromagnetics
  • Antenna Engineering
  • Materials Science

Background:

  • Metamaterial-based reflectarray antennas offer potential for high-power microwave (HPM) applications.
  • ε-negative metamaterial-based magnetic enhanced reflectarray antenna (MERA) elements show comparable power handling capacity (PHC) to all-metal HPM antennas.
  • Existing X-band MERA prototypes exhibit high radiation performance, but lack established PHC evaluation methods.

Purpose of the Study:

  • To design and fabricate an experimental HPM platform for PHC evaluation of MERA elements.
  • To experimentally verify the PHC characteristics of an X-band MERA prototype.
  • To demonstrate the feasibility of MERA application in the HPM field.

Main Methods:

  • Design and construction of a 9.4 GHz experimental HPM platform.
  • Fabrication of an X-band MERA prototype.
  • Conducting HPM experiments to assess MERA stability and PHC.

Main Results:

  • The experimental HPM platform was successfully operated at 9.4 GHz.
  • The MERA prototype demonstrated stability under HPM illumination.
  • The PHC of the MERA element was experimentally confirmed to reach 1 GW/m2.

Conclusions:

  • The study experimentally validates the feasibility of using MERA in HPM applications.
  • The MERA element exhibits a significant PHC of 1 GW/m2.
  • These findings are crucial for advancing microstrip antenna development in the HPM domain.