A compact K-band slow-wave structure inspired by slot-ring metamaterial for high power microwave source

M. Liu; J. Zhang; W. Jiang; C. Liu; C. Hou; G. Chang; Y. Yang; K. Cao; Y. Ma; G. Lei; Z. Xi

doi:10.1063/5.0321320

journal article·2026-06-01Open access

A compact K-band slow-wave structure inspired by slot-ring metamaterial for high power microwave source

M. Liu, J. Zhang, W. Jiang, C. Liu, C. Hou, G. Chang, Y. Yang, K. Cao, Y. Ma, G. Lei, Z. Xi

AIP Advances· Volume 16· Issue 6

Publisher page Open full text

Source abstract

Abstract

In this paper, we propose a metamaterial (MTM) structure that is suitable for use as a compact high power microwave device at K-band. A slow-wave structure (SWS) with an operating frequency of 25.36 GHz based on an all-metal MTM array was developed and studied in both simulation and experimental cold tests. The results show that this MTM SWS is very useful to miniaturize the high-power microwave device at K-band and control the electromagnetic field to release the energy into the TE11 mode. A particle-in-cell simulation model of a forward wave oscillator was built. With the optimized parameters, it shows that an output power of 118 MW and an electronic efficiency of 20% for a forward wave TE11 mode at a frequency of 25.36 GHz can be obtained for an applied voltage of 540 kV, a beam current of 1.09 kA, and a magnetic field of 0.25 T.

Source: crossref · Quality: baseline

Research context

OpenAlex topics: Metamaterials and Metasurfaces Applications · Gyrotron and Vacuum Electronics Research · Energy Harvesting in Wireless Networks

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Physical Electronics and Devices of the Ministry of Education Laboratory, Xi’an Jiaotong University 1 , 710049 Xi’an,

School of Automation Science and Technology Electronic and Information Engineering, Xi’an Jiaotong University 2 , 710049 Xi’an,

Extreme Energy-Density Research Institute Nagaoka University of Technology 3 , Nagaoka, 940-2188 Niigata,

School of Electrical Engineering, Xi’an Jiaotong University 4 , Xi’an, Shaanxi 710065,

Xi’an Elite Electronics Co., Ltd. 5 , No. 1068 Runfeng Road, Chang’an Communication Industrial Park, Tech High Zone, Xi’an 710114, Shaanxi,

School of Electronic Engineering, Xi’an Shiyou University 6 , Xi’an, Shaanxi 710065,

Funding

the Fundamental Research Funds of Shaanxi Key Laboratory of Artificial Structured Functional Materials and Devices

References (19)

Show source-provided references

1. Research on K-band coaxial transit-time oscillator10.12061/j.issn.20956223.2023.040503 ↗

2. A Ku/K band dual linearly polarized reflectarray for Earth exploration satellite services10.1080/00207217.2024.2302338 ↗

3. A K-Band high interference-rejection GaAs low-noise amplifier using multizero control method for satellite communication10.1109/LMWC.2020.3026075 ↗

4. Retrieving multiaspect point clouds from a multichannel K-band SAR drone10.1109/JSTARS.2025.3532126 ↗

5. Accurate detection of doppler cardiograms with a parameterized respiratory filter technique using a K-band radar sensor10.1109/TMTT.2022.3184019 ↗

6. Design of commonly-resonated extended interaction circuits for submillimeter-wave phase-locked oscillators10.11972/j.issn.1001-9014.2025.04.010 ↗

7. Multiorder-cascaded matching of coupling structures for high-efficiency phase locking between multiple magnetrons10.1109/ted.2024.3392548 ↗

8. 2022

9. PIC investigations of a gyro-like backward-wave oscillator using elliptical metamaterials10.1109/tps.2025.3629069 ↗

10. PIC simulations of a frequency agile multicavity relativistic magnetron using irregular ring metamaterials driven by a transparent cathode10.1063/5.0089115 ↗

11. Simulation investigation of an X-band forward-wave oscillator using spiral metamaterials10.1109/TPS.2024.3395012 ↗

12. Metamaterial-inspired vacuum electron devices and accelerators10.1109/ted.2018.2878242 ↗

13. Simulation investigations of a novel L-band metamaterial relativistic oscillator with higher power and lower guiding magnetic field10.1063/5.0128785 ↗

14. See https://www.ansys.com/ for ANSYS Electronics Electromagnetic Field Simulation Solution Information.

15. Sov. Phys. Uspekhi · 1968 · 47 · 509

16. J. Phys.: Condens. Matter · 1998 · 10 · 478510.1088/0953-8984/10/22/007 ↗

17. Appl. Phys. Lett. · 2015 · 107 · 15350210.1063/1.4933106 ↗

18. Appl. Phys. Lett. · 2010 · 97 · 15110710.1063/1.3492846 ↗

19. 2018