# transmission line

**Transmission Line Books**

RF and Microwave Coupled-Line Circuits Bahl, et al.

Multiconductor Transmission Line Analysis

Lossy Transmission Lines by Gardiol

Digital Transmission Lines Granzow, Oxford

Microwave Transmission Line Impedance Data by Gunston

Microstrip Lines and Slotlines by Gupta et al

Electrical Characteristics of Transmission Lines by Hillberg

Microwave Transmission Line Filters by Malherbe

A system of conductors suitable for conducting electric power or signals between two or more termini. Transmission lines take many forms in practice and have application in many disciplines. For example, they traverse the countryside, carrying telephone signals and electric power. The same transmission lines, with similar functions, may be hidden above false ceilings in urban buildings. With the need to reliably and securely transmit ever larger amounts of data, the required frequency of operation has increased from the high-frequency microwave range to the still higher frequency of light. Optical fibers are installed in data-intensive buildings and form a nationwide network. Increasing demand also requires that transmission lines handle greater values of electric power.

Transmission lines can, in some cases, be analyzed by using a fairly simple model that consists of distributed linear electrical components. Models of this type, with some permutations, can also be used to describe wave propagation in integrated circuits and along nerve fibers in animals. The study of hollow metal waveguides or optical fibers is usually based upon an analysis starting from Maxwell’s equations rather than employing transmission-line models. Fundamentals and definitions that can initially be obtained from a circuit model of a transmission line carry over to waveguides, where the analysis is more complicated

### Transmission line

Good links

Time domain model of dispersive transmission line

Transmission Lines from Amanogawa

Transmission line scaling ,signal integrity

good source of transmission line, Ultracad

Skin effect modeling in SPICE

An good article on how to put skin effect into simulations

Newwave

Intruments Transmission Line Webpage

Good collection of links and books on transmission lines

rfglobalnet A good web site for RF designs

microwave notes and matlab files

** Online Transmission Line Calculators**

Transmission line tools from signal integrity

JavaScript Microstrip Calculator

transmission line filter design tool

transmission line calculators two wire, stripline, and coaxial

TX-Line Transmission Line Calculator – Applied Wave Research

Transmission Line Effects on Bus

Stub Transmission Line Matching, graphical applet

Wheeler stripline calculator, Idea Consulting

Differential stripline calculator, Idea Consulting

Nice stripline calculator free download

Microstrip Calculator Synthesis and analysis

AA3RL Transmission Line Calculator Excel spreadsheet

Microstrip Calculator, rogers-corp.com

PCB trace impedance calculator

A free DOS program for calculating stripline characteristics

wave propagation on a transmission line

**EM simulation software **

EM Routines and Codes collection of RF software

EM software

Donot forget to see home page http://www.emclab.umr.edu

Momentum

a planar electromagnetic simulator, and HFSS,

a three-dimensional electromagnetic simulation tool.

Ansoft

tools for various types of signal integrity and electromagnetic problems, including 3D simulation.

Arpeggio Full-wave EM simulator (free)

EMPiCASSO from EMAG Technologies

EMSight Method-of-Moments 3D electromagnetic simulator for circuit interconnect

EMA3D 3D FD-TD electromagnetic simulator for radiation and scattering problems

MEFiSTo 2D(free) and 3D EM Simulators

FEMLAB for Matlab: Finite Element Method

IE3D for electromagnetic simulation of circuit and antenna structures

IFS Pro A good SPICE output from the simulator

LINMIC electromagnetics-based Microwave and RF IC Design Suite

Remcom 3D FD-TD electromagnetic simulator

Tera’s

Quickfield EM Thermal Stress Simulator free demo

Integrated EM Simulation Software

Radar FDTD FDTD with PML boundary conditions

SEMCAD 3D EM and thermal Solvers

**Sonnet planar electromagnetic simulation tool and it’s free **

Fidelity 3-D full wave electromagnetic simulation program