High-Frequency Pulse Distortion on a Lossy Microstrip Line With a Top Cover

被引：8

作者：

Bernal, Joaquin ^{[1
]}

Mesa, Francisco ^{[2
]}

Jackson, David R. ^{[3
]}

Langston, William L. ^{[4
]}

Williams, Jeffery T. ^{[3
]}

机构：

[1] Univ Seville, Dept Appl Phys 3, Seville 41092, Spain

[2] Univ Seville, Dept Appl Phys 1, E-41012 Seville, Spain

[3] Univ Houston, Dept Elect & Comp Engn, Houston, TX 77204 USA

[4] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2010年 / 58卷 / 07期

关键词：

Conductor losses; continuous spectrum; dielectric losses; dispersive effects; leaky mode; microstrip; packaging effects; pulse propagation; spurious effects; TRANSMISSION-LINES; LEAKY MODES; PROPAGATION; EXCITATION; STRIPLINE; IMPEDANCE; MEDIA;

D O I：

10.1109/TMTT.2010.2049920

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper studies the time-domain propagation and dispersion of a pulse propagating on a microstrip line with a metallic top cover. A gap voltage source is used to model a practical excitation on the line. High-frequency distortion effects are observed that cannot be accounted for by conventional transmission-line theory, since they are due to the simultaneous excitation of the bound mode and a strong leaky mode. The bound-mode and leaky-mode components of the pulse are identified and separately studied to aid in the physical interpretation of the pulse distortion. The excitation of a dominant leaky mode gives rise to an interesting pulse-splitting phenomenon, due to the different velocities of the bound mode and the leaky mode. The influence of dielectric and conductor losses on the pulse shape is also studied.

引用

页码：1774 / 1785

页数：12

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