多层mmic用超低阻抗CPW传输线

IEEE 1993 Microwave and Millimeter-Wave Monolithic Circuits Symposium Digest of Papers Pub Date : 1993-06-14 DOI:10.1109/MCS.1993.247461

M. Gillick, I. Robertson

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引用次数: 16

摘要

提出了一种在多层单片微波集成电路(mmic)上实现超低特性阻抗低损耗共面波导(CPW)传输线的技术。实验研究了这些CPW线的性能，分别是(a)接地面延伸到信号导体下面或(b)中心导体延伸到接地面下面。利用这种技术，已经实现了低至7 ω的特征阻抗。该技术已与标准薄膜微带传输线进行了广泛的比较。TFMS技术可用于特征阻抗低至3.6 ω的线路，但在这里发现损耗明显更大。

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Ultra low impedance CPW transmission lines for multilayer MMICs

A technique for realizing low-loss coplanar waveguide (CPW) transmission lines with ultralow characteristic impedance on multilayer monolithic microwave integrated circuits (MMICs) is presented. The performance of these CPW lines is investigated experimentally with either (a) ground planes extended under the signal conductor or (b) the center conductor extended underneath the ground planes. Using this technique, characteristic impedances as low as 7 Omega have been realized. The technique has been compared extensively with the proven standard thin-film microstrip transmission line. The TFMS technique can be used for lines with characteristic impedance as low as 3.6 Omega but is found here to be significantly more lossy.<>

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IEEE 1993 Microwave and Millimeter-Wave Monolithic Circuits Symposium Digest of Papers

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