MODELING OF MICROWAVE DEVICES USING HIGH-FREQUENCY ELECRTOMAGNETIC COUPLINGS IN MULTILAYERED AND MULTICONDUCTOR TRANSMISSION LINES

在多层和多导体传输线路中使用高频电磁耦合的微波器件建模

• 批准号: 09450155
• 负责人: YASUMOTO Kiyotoshi
• 金额: $ 4.48万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09450155/
• 关键词: Multiconductor lines; Coupled-mode theory; Microwave devices

The purpose of this research project is to investigate a modeling of microwave devices using the full-wave coupled-mode theory for multilayered and multiconductor transmission lines. The main results of the research are summarized as follows :1. Using the coupled-mode theory based on the reciprocity theorem, novel transmission-line equations have been proposed for multilayered and multiconductor lines. The formula to calculate the circuit parameters of multiport coupled-microstrip line systems has been presented using the proposed transmission-line equations. The circuit parameters in various coupled-microstrip line structures were evaluated and the validity of the formula was confirmed.2. The coupled-mode equations in the time domain has been presented for analyzing the resonance frequencies of coupled microstrip resonators. The equations have been applied to study the resonance characteristics in two-coupled microstrip resonators with arbitrary orientation.3. The coupled-mode theory for multiconductor transmission lines on a substrate of magnetized ferrite has been presented, using the generalized reciprocity relation and the properties of symmetry for the guided fields in an anisotropic medium. The resulting coupled-mode equations have the same form as those obtained for the multiconductor lines on a dielectric substrate. The equations have been applied to analyze the nonreciprocal properties of two-coupled microstrip lines on the magnetized ferrite substrate.4. A novel coupled-mode formation applicable to coupled dielectric waveguides with a large refractive-index difference between core and cladding regions has been presented. The formulation was used to analyze the coupling characteristics of an NRD-guides coupler.

该研究项目的目的是使用用于多层和多个导向传输线的全波耦合模式理论研究微波设备的建模。研究的主要结果总结如下：1。使用基于互惠定理的耦合模式理论，已经提出了新的传输线方程，用于多层和多个导体线。已经使用所提出的传输线方程提出了计算多端耦合微带线系统的电路参数的公式。评估了各种耦合微带线结构中的电路参数，并确认公式的有效性。2。已经提出了时间域中的耦合模式方程，用于分析耦合的微带谐振器的谐振频率。该方程已应用于研究以任意取向的两耦合微带谐振器中的共振特性3。已经提出了使用广义互惠关系和各向异性介质中指导场的对称性的磁化铁矿基质上的多中导体传输线的耦合模式理论。所得的耦合模式方程的形式与介电底物上的多通导器线获得的形式相同。该方程已应用于分析磁化铁氧体底物上两偶联微带线的非偏置特性。4。已经提出了一种新型的耦合模式形成，适用于核心区域和覆层区域之间具有较大折射率差异的耦合介电波导。该公式用于分析NRD引导耦合器的耦合特性。

项目成果

Kiyotoshi Yasumoto: "Coupled-Mode Analysis of Bi-Level Coupled Microstrip Lines" Proc.of International Symposium on Recent Advances in Microwave Technology. 456-462 (1997)

Kiyotoshi Yasumoto：“双层耦合微带线的耦合模式分析”微波技术最​​新进展国际研讨会论文集。

K. Watabnabe and K. Yasumoto: "Analysis of a grating-assisted directional coupler using coupled-mode formulation based on singular perturbation technique"Proc. of Progress in Electromagnetics Research Symposium. 219 (1998)

K. Watabnabe 和 K. Yasumoto：“使用基于奇异扰动技术的耦合模式公式分析光栅辅助定向耦合器”Proc。

Koki Watanabe: "Second-Order Perturbation Theory for a Grating-Asisted Directional Coupler"Proc.of International symposium on Recent Advances in Microwave Technology. 400-403 (1999)

Koki Watanabe：“光栅辅助定向耦合器的二阶扰动理论”微波技术最​​新进展国际研讨会论文集。

H. Jia, K. Yasumoto, and K. Yoshitomi: "Analysis of inset di-electric guide using Fourier transform technique with perfectly matched boundary"Proc. of 1998 China-Japan Joint Meeting on Microwaves. 271-274 (1998)

H. Jia、K. Yasumoto 和 K. Yoshitomi：“使用具有完美匹配边界的傅里叶变换技术分析插入介电波导”Proc。

Kiyotoshi Yasumoto: "Rigorous Analysis of Electromagnetic Scattering by Periodic Arrays of Cylindrical Objects Using Lattic Sums"Proc. of XXVIth General Assembly of URSI. 88-88 (1999)

Kiyotoshi Yasumoto：“使用格子和对圆柱形物体周期阵列的电磁散射进行严格分析”Proc。