𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Accurate design equations for covered microstrip coupled lines

✍ Scribed by Wan, Changhua

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
403 KB
Volume
5
Category
Article
ISSN
1050-1827

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Using the modified conformal mapping technique, closed‐form quasistatic design equations for covered microstrip slot/parallel‐coupled lines are derived in this article. They are found to be more accurate than the existing ones, when compared with the rigorous results by numerical methods. Specifically, the derived equations for the even‐mode properties of slot‐coupled lines and those for the odd‐mode properties of parallel‐coupled lines are extremely useful because the existing counterparts are either too rough or too inaccurate for use. In addition, two sets of available design equations for covered microstrip single line, which is equivalent to the covered microstrip slot‐coupled lines under odd‐mode excitations, are checked and recommendations are given.

📜 SIMILAR VOLUMES

An accurate design technique for microst
An accurate design technique for microstrip edge-end-coupled filters
✍ Zou Bin; Sener Uysal 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 119 KB 👁 1 views

In conclusion, modulation instability leads to power modulation along the fiber, and to increased power penalties when the channel spacing coincides with the modulation instability frequency, which clearly demonstrates that the use of nonzero-dispersion-shifted fibers with slightly positive dispersi

Accurate design of compact forward-coupl
Accurate design of compact forward-coupled microstrip filters using an integral-equation field solver
✍ Zhang, Dawei ;Liang, Guo-Chun ;Shih, Chien-Fu ;Johansson, Marie E. ;Withers, Ric 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 693 KB

## Abstract In this article, we present forward‐coupled microstrip filters designed using an integral‐equation‐based field solver, and fabricated in high‐temperature superconducting (HTS) thin films. Two designs were studied, one a nine‐pole bandpass filter at 900 MHz with 25‐MHz bandwidth, and the

An accurate dispersion expression for sh
An accurate dispersion expression for shielded microstrip lines
✍ Wells, Garnet ;Pramanick, Protap 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 432 KB

## Abstract A closed‐form dispersion expression for shielded microstrip lines is presented here for the first time. The expression is valid for a wide range of frequencies, geometrical parameters, and substrate dielectric constants. Unlike previous expressions for open microstrip lines, the inflect

Design and measurement of microstrip fer
Design and measurement of microstrip ferrite coupled line circulators
✍ C. S. Teoh; L. E. Davis 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 249 KB

The design of microstrip ferrite coupled line (MFCL) circulators using normal mode theory and the first proof-of-principle experiments are described. The longitudinally magnetized ferrite slab is positioned on top of a pair of microstrip lines to form the FCL and this is used with a T -junction and

Coupling parameters for capacitatively c
Coupling parameters for capacitatively coupled orthogonal microstrip branch lines
✍ F. Huang; C. H. Loh; C. H. Poh 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 186 KB

Capacitance and inductance equivalent circuit parameters for various microstrip discontinuities were reported more than 20 years ago, but those for capacitatively coupled orthogonal microstrip branch lines were not included. These structures are used for ring resonators and in a class of band-stop f

An efficient method for analyzing nonuni
An efficient method for analyzing nonuniformly coupled microstrip lines
✍ Dengpeng Chen; Zhongxiang Shen; Erping Li 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 250 KB

This article presents an efficient method for analyzing nonuniformly coupled microstrip lines. By choosing a modal-transformation matrix, the coupled nonlinear differential equations describing the symmetric nonuniformly coupled microstrip lines are decoupled using even-and odd-mode parameters; the