Analysis of quasi-optical power combiners by vector field measurements at 150 GHz

被引:1
作者
Judaschke, R. [1 ]
Weinzierl, J. [2 ]
机构
[1] Phys Tech Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany
[2] Univ Erlangen Nurnberg, Lehrstuhl Hochfrequenztech, D-91058 Erlangen, Germany
关键词
Horn antennas;
D O I
10.5194/ars-5-419-2007
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
Two-dimensional quasi-optical power dividing/combining circuit has been experimentally investigated at 150 GHz. It consists of a rectangular horn antenna array as receiving/transmitting unit and a dual offset reflector setup to match the radiated field(s) to the pattern of the receiving antenna(s). To verify both design and adjustment of the quasi-optical circuit, electric field scans have been performed in selected planes and volumes of the setup. To measure the spatial electric field distribution, a vector field measurement system has been developed which operates in the frequency range between 148 GHz and 152 GHz. Excellent agreement between calculated and measured results for a horn antenna array approve the predicted results calculated under the physical optics approximation. Measured power dividing/combining efficiency of the passive structure of 63 % for an inter-element spacing of 10), indicates that the power combining principle is a suitable method up to submillimeter wavelengths.
引用
收藏
页码:419 / 425
页数:7
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