Designs of Broadband Unilateral Finline SIS Mixers Employing 15 mum Silicon-On-Insulator Substrate at THz Frequencies
Designs of Broadband Unilateral Finline SIS Mixers Employing 15 mum Silicon-On-Insulator Substrate at THz Frequencies
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采用 15 mum 绝缘体硅衬底的宽带单边 Finline SIS 混频器在太赫兹频率下的设计
DOI：
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复制
发表时间：
2010
期刊：
影响因子：
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通讯作者：
K. Jacobs
中科院分区：
文献类型：
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作者：
B. K. Tan;G. Yassin;P. Grimes;K. Jacobs
我们提出了两个铌单端超导体-绝缘体-超导体（SIS）混频器的设计优化工作在600-700 GHz的频率范围。这种新的混合器设计的一个关键特征是利用单侧鳍线锥形。这种过渡比以前采用的对脚鳍线明显更容易设计和模拟，更重要的是，它大大简化了芯片制造，因为鳍在任何阶段都不重叠。在鳍线中传播的RF功率直接从槽线耦合到微带，或者更有效地经由共面波导（CPW）耦合到微带。我们设计的另一个新颖的特点是在一个非常薄的硅衬底上制造混频器芯片，这将使用绝缘体上硅或（SOI）技术来实现。这将允许来自馈电喇叭的输入信号与加载波导的容易匹配，并且允许使用金梁引线将轻质混频器芯片保持在波导的E平面中，从而消除了对波导壁中的深凹槽的需要。这些新的特征产生显著更短的芯片并且允许更宽的RF带宽，因为已经避免了凹槽中的高阶模式的激发。混频器模块非常简单，由光滑壁的喇叭和波导部分组成，没有任何复杂的机械特征。在本文中，我们提出的混频器芯片的细节，包括各种过渡段，调谐电路和混频器块的设计，电磁仿真支持。我们详细描述了设计过程，并使用SuperMix软件包预测了全混合器的性能。
We present the design of two niobium singleended Superconductor-Insulator-Superconductor (SIS) mi xers optimized to work in the frequency range of 600–700 GHz. A key feature of this new mixer design is the utilization of a unilateral finline taper. This transition is significantly easier to design and simulate than the previously employed antipod al finline, and more importantly it simplifies the chip fabricat ion considerably since the fins do not overlap at any stage. RF power propagating in the finline is coupled to the microstrip either directly from the slotline to microstrip, or more effi ciently via a coplanar waveguide (CPW). Another novel feature of our design is the fabrication of the mixer chip on a very thin silicon substrate which will be achieved using Silicon-On-Insulat or (SOI) technology. This will allow easy matching of the incoming si gnal from the feed horn to the loaded waveguide and allows the lightweight mixer chip to be held in the E-plane of the waveguide using gold beam leads, eliminating the need for a deep groove in the waveguide wall. These new features yield a significant ly shorter chip and allow wider RF bandwidth since the excitati on of higher order modes in the groove has been avoided. The mixer block is extremely simple, composing a smooth-walled horn and a waveguide section without any complicated mechanical features. In this paper, we present the details of the mixer chip, including various transition sections, tuning circuits and mixer block designs, supported by electromagnetic simulat ions. We describe the design procedure in detail and predict the fu ll mixer performance using the SuperMix software package.
用于焦平面阵列的高性能光滑壁馈源喇叭
DOI：
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发表时间：
2008
期刊：
Proceedings of the 19th International Symposium on Space Terahertz Technology, ISSTT 2008
影响因子：
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作者：
Kittara P.
通讯作者：
Kittara P.
毫米波探测器的波导到平面电路过渡
影响因子：
1.1
作者：
Yassin G
通讯作者：
Yassin G