A Prediction for the Electromagnetic Fields in Resonant Cavity of a 2.45 GHz Microwave Electro-thermal Thruster

Dong Jae Jo; Seong Sik Kang; Jeong Soo Kim

doi:10.6108/KSPE.2025.29.1.031

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2025 Vol.29, Issue 1 Preview Page Next Page

RESEARCH PAPERS

A Prediction for the Electromagnetic Fields in Resonant Cavity of a 2.45 GHz Microwave Electro-thermal Thruster 2.45 GHz 마이크로파 전열 추력기의 공진 캐비티 내부 전자기장 예측

28 February 2025. pp. 31-39

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Abstract

The design of a resonant cavity inducing microwave resonance in specific propagation modes is central to MET. However, MET includes components within the cavity that alter its resonant characteristics. These characteristics directly affect the electric field intensity and serve as criteria for determining the cavity’s design direction, requiring systematic analysis. This study designs a 2.45 GHz, 1 kW-class MET resonant cavity by numerically analyzing changes in resonant characteristics from variations in the size and position of components. Based on the results, strategies considering efficiency and operational stability are proposed.

Keywords

Microwave Electro-thermal Thruster

Resonant Cavity

Plasma

Numerical Simulation

MET는 특정 전파 모드에서 마이크로파의 공진을 유도하는 공진 캐비티의 설계가 핵심이다. 그러나, MET에는 공진 캐비티 내부의 공진 특성을 변화시키는 구성 요소가 포함되어 있다. 공진 특성은 전기장 세기에 직접적인 영향을 미칠 뿐만 아니라, 공진 캐비티의 설계 방향을 결정하는 중요한 기준이 되므로 체계적인 분석이 필요하다. 따라서, 본 연구에서는 2.45 GHz, 1 kW급 MET의 공진 캐비티 설계를 목표로, 구성 요소의 크기 및 위치 변화에 따른 공진 특성을 수치모사를 통해 분석하였다. 또한, 이 결과를 바탕으로 효율성과 운용 안정성을 고려한 설계 방안을 제시하였다.

키워드

마이크로파 전열 추력기

공진 캐비티

플라즈마

수치모사

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Information

Publisher :The Korean Society of Propulsion Engineers
Publisher(Ko) :한국추진공학회
Journal Title :Journal of the Korean Society of Propulsion Engineers
Journal Title(Ko) :한국추진공학회지
Volume : 29
No :1
Pages :31-39
Received Date : 2024-12-16
Revised Date : 2025-02-10
Accepted Date : 2025-02-11
DOI :https://doi.org/10.6108/KSPE.2025.29.1.031

Journal of the Korean Society of Propulsion Engineers ISSN:1226-6027(Print) 2288-4548(Online) 한국추진공학회지

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