Gordon Coupler with Inductive or Capacitive Iris for Small EPR Resonators for Aqueous Samples.
Gordon Coupler with Inductive or Capacitive Iris for Small EPR Resonators for Aqueous Samples.
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DOI：
10.1007/s00723-021-01432-0
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发表时间：
2022-09
影响因子：
1
通讯作者：
中科院分区：
文献类型：
--
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戈登耦合器被引入用于液氦温度下的EPR实验。它提供入射在微波谐振器的膜片上的渐逝波。入射到耦合器上的功率与谐振器的匹配是通过改变渐逝波的振幅来获得的，渐逝波是由锥形波导中的介质楔的位移引起的。减少微音从氦气鼓泡的报道。戈登耦合器随后从腔谐振器扩展到环隙谐振器，最初在氦温度下，但后来用于水溶液样品。使用具有低介电常数的塑料，通常是特氟隆。在这里，我们扩展的戈登耦合器的应用在X波段五环四间隙谐振器使用熔融石英，蓝宝石，或金红石陶瓷，注意到耦合器的大小，然后可以与介质环间隙谐振器以及介质管谐振器的尺寸相称。已经进行了电磁场的有限元建模，并且使用与戈登耦合器接口的电容性虹膜减少了在匹配谐振器时谐振频率的牵引。
The Gordon coupler was introduced for use in EPR experiments at liquid helium temperatures. It provides an evanescent wave incident on the iris of a microwave resonator. Match of power incident on the coupler to the resonator is obtained by variation of the amplitude of an evanescent wave that arises from displacement of a dielectric wedge in a tapered waveguide. Reduced microphonics from helium bubbling was reported. The Gordon coupler was subsequently extended from cavity resonators to loop-gap resonators, initially at helium temperatures but later for aqueous samples. Plastics with low dielectric constants, usually Teflon, were used. Here, we extend the Gordon coupler for application in X-band five-loop—four-gap resonators using fused quartz, sapphire, or rutile dielectrics, noting that the size of the coupler can then be commensurate with dimensions of dielectric loop-gap resonators as well as dielectric tube resonators. Finite element modeling of electromagnetic fields has been carried out, and use of a capacitive iris that interfaces with the Gordon coupler reduces pulling of the resonant frequency when matching the resonator.
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影响因子：
1.6
作者：
Sidabras, Jason W.;Mett, Richard R.;Hyde, James S.
通讯作者：
Hyde, James S.
DOI：
10.1088/0022-3735/19/3/014
发表时间：
1986-03-01
期刊：
JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS
影响因子：
--
作者：
GALLAY, R;VANDERKLINK, JJ
通讯作者：
VANDERKLINK, JJ
影响因子：
1.6
作者：
Mett, R. R.;Sidabras, J. W.;Hyde, J. S.
通讯作者：
Hyde, J. S.
影响因子：
1
作者：
Mett, R. R.;Sidabras, J. W.;Hyde, J. S.
通讯作者：
Hyde, J. S.
影响因子：
2.2
作者：
Mett, Richard R.;Sidabras, Jason W.;Hyde, James S.
通讯作者：
Hyde, James S.