High-Performance Wideband Double-Ridged Waveguide OMT for the 275-500 GHz Band

被引：25

作者：

Gonzalez, Alvaro ^{[1
,2
]}

Kaneko, Keiko ^{[1
]}

机构：

[1] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[2] Grad Univ Adv Studies SOKENDAI, Mitaka, Tokyo 1818588, Japan

来源：

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2021年 / 11卷 / 03期

关键词：

Transducers; Wideband; Prototypes; Loss measurement; Waveguide transitions; Waveguide junctions; Extraterrestrial measurements; Orthomode transducers (OMTs); polarization splitter; radio astronomy; submillimeter-wave circuits; ORTHO-MODE TRANSDUCER; ORTHOMODE TRANSDUCER;

D O I：

10.1109/TTHZ.2021.3062451

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：

In this article, a high-performance wideband double-ridged waveguide orthomode transducer (OMT) for the 275-500 GHz band has been designed, fabricated, and tested. Such wideband performance would allow to cover two full RF bands in radio astronomy, 275-373 GHz and 385-500 GHz, with a single receiver, allowing for additional science cases and simplified operations. Successful fabrication of prototypes by direct machining in two split blocks and successful testing prove the readiness for complex fabrication of OMT components in this frequency range. The reported performance of our prototype OMT is to our knowledge the best at sub-mm wavelengths over such as wide bandwidth.

引用

页码：345 / 350

页数：6

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