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首页> 外文会议>Terahertz, RF, millimeter, and submillimeter-wave technology and applications VI >Sub-mm/THz Wave Generation/Amplification using Cerenkov-Transition Based Device
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Sub-mm/THz Wave Generation/Amplification using Cerenkov-Transition Based Device

机译：使用基于切伦科夫转换的设备产生/毫米/毫米以下的次毫米波

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摘要

Due to the rapid growth of the biomedical and the security applications, the interest in the development of compact and flexible sub-mm/THz radiation sources has grown significantly. In this paper we propose a novel source design to address this need. Taking the advantage of the Photonic Crystal (PC) structure, a metallic defected PC, with no axial discontinuities, was designed as a Slow Wave Structure (SWS). This SWS was used in a high power Cerenkov-transition based oscillator/amplifier working in sub-mm/THz frequency regime. The SWS allows electron beams to travel axially in it, facilitating the beam-wave interaction required for the desired signal generation. Two coaxial transitions are used as input and output for the proposed device. The analysis of the proposed device was done using a combined Finite Difference Time Domain (FDTD) / Particle In Cell (PIC) simulation. Using the FDTD thin wire model, coaxial transitions were modeled to feed/extract the input/generated signals. To show the potential of the proposed device, two design examples; one for the amplifier and the other for the oscillator, are presented.
机译：由于生物医学和安全应用的快速增长，人们对开发紧凑而灵活的亚毫米/太赫兹辐射源的兴趣大大增加。在本文中，我们提出了一种新颖的源设计来解决这一需求。利用光子晶体（PC）结构的优势，将无轴向不连续性的金属缺陷PC设计为慢波结构（SWS）。该SWS用于工作在亚毫米/太赫兹频率范围的基于高功率切伦科夫转换的振荡器/放大器中。 SWS允许电子束在其中轴向传播，从而促进了所需信号生成所需的束波相互作用。两个同轴过渡用作拟议设备的输入和输出。使用组合的有限时域（FDTD）/单元内粒子（PIC）模拟进行了拟议设备的分析。使用FDTD细线模型，对同轴过渡进行建模，以馈送/提取输入/生成的信号。为了展示所提出的设备的潜力，有两个设计实例。其中一个用于放大器，另一个用于振荡器。

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