Optimal horn antenna design to excite high-order Gaussian beam modes from TE0m smooth circular waveguide modes

被引:16
作者
Bocio, CD [1 ]
Gonzalo, R
Ayza, MS
Thumm, M
机构
[1] Univ Publ Navarra, Microwave & Millimeter Wave Grp, E-31006 Navarra, Spain
[2] Univ Karlsruhe, Inst Hochstfrequenztech & Elektron, D-76021 Karlsruhe, Germany
[3] Forschungszentrum Karlsruhe, Inst Tech Phys, D-76021 Karlsruhe, Germany
关键词
circular waveguides; Gaussian beams; horn antennas;
D O I
10.1109/8.793324
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The availability of medium-power gyrotron tubes (10-30 kW, CW) at millimeter-wave frequencies (30-100 GHz) allows applications such as advanced ceramic sintering, surface coating, radar, remote sensing, deep-space communications, etc The concept of high-order Gaussian beam modes, which, under some conditions, can be assumed to be Bee-space modes, is applied to transport efficiently the power generated by a gyrotron for technological applications. A. family of optimized nonlinear horn antennas is investigated in order to get the maximum ! coupling between the guided output mode of the gyrotron and the Gaussian beam modes. The numerical simulations show very favorable coupling with a conversion efficiency of about 99.8%.
引用
收藏
页码:1440 / 1448
页数:9
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