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作者机构:Air Early Warning AcademyWuhan 430014China College of Advanced Interdisciplinary StudiesNational University of Defense TechnologyChangsha 410073China
出 版 物:《Chinese Physics B》 (中国物理B(英文版))
年 卷 期:2020年第29卷第11期
页 面:538-542页
核心收录:
学科分类:080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学]
主 题:dual-band mode conversion antenna high power microwave(HPM)
摘 要:Complex magnetically insulated transmission line oscillator(MILO),as an important development direction,can enhance the power efficiency and generate dual-band high power microwaves(HPMs).A complex MILO and a preliminary dual-band radiation system have been proposed in our previous ***,the axial length of the dual-band radiation system is too long to meet the compact *** this paper,a compact dual-band radiation system is presented and investigated *** compact dual-band radiation system comprises a dual-band cross-shaped mode converter and a dual-band coaxial conical horn *** can convert two coaxial TEM mode microwaves(1.717 GHz and 4.167 GHz)generated by the complex MILO into the coaxial TE11 mode microwaves,and then radiate them into the *** 1.717 GHz,the gain of the antenna is 17.9 dB,and the total return loss and diffraction loss are 1.50%and 0,*** 4.167 GHz,the gain is 19.4 dB,and the total return loss and diffraction loss are 1.17%and 0.78%,*** power handling capacity of the antenna is 5.1 GW at 1.717 GHz and 2.0 GW at 4.167 *** with the original structure,the length of the dual-band radiation system is reduced by 45.2%.