Transmission Line for 258 GHz Gyrotron DNP Spectrometry

被引：11

作者：

Bogdashov, Alexandr A. ^{[1
]}

Belousov, Vladimir I. ^{[1
]}

Chirkov, Alexey V. ^{[1
]}

Denisov, Gregory G. ^{[1
]}

Korchagin, Vyacheslav V. ^{[1
]}

Kornishin, Sergey Yu ^{[1
]}

Tai, Evgeny M. ^{[2
]}

机构：

[1] Inst Appl Phys, Nizhnii Novgorod, Russia

[2] GYCOM Ltd, Nizhnii Novgorod, Russia

来源：

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES | 2011年 / 32卷 / 06期

关键词：

Microwave transmission line; HE11; mode; Dynamic nuclear polarization spectrometer; Sub-millimetre wavelength gyrotron; DYNAMIC NUCLEAR-POLARIZATION; MODE; NMR;

D O I：

10.1007/s10762-011-9787-4

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：

We describe the design and test results of the transmission line for liquid-state (LS) and solid-state (SS) DNP spectrometers with the second-harmonic 258.6 GHz gyrotron at the Institute of the Biophysical Chemistry Center of Goethe University (Frankfurt). The 13-meter line includes a mode converter, HE11 waveguides, 4 mitre bends, a variable polarizer-attenuator, directional couplers, a water-flow calorimeter and a mechanical switch. A microwave power of about 15 W was obtained in the pure HE11 mode at the spectrometer inputs.

引用

页码：823 / 837

页数：15

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