Transmission Line Calculator - DOWNLOAD FREE
I have recently posted to my web site a transmission line calculator in
Excel 7.0 format. I initially created the spreadsheet to design matches
with Stubs and Series Section Line Transformers. Since then, other
utility functions were added that have enabled it to replace the Smith
Chart, the pocket calculator, and many computer programs for
transmission line design applications. I hope you will find it equally
useful. The web page shows screen shots of most functions. The download
button is at the bottom of the page. Point you browser at
http://www.qsl.net/aa3rl/
follow the link to Transmission Line Calculator
The program performs the following calculations:
Length Conversion: Wavelength, Degrees, Feet
Series and Parallel Equivalent values
Capacitance and Inductance required for given reactance (X)
Air Wound Coil construction
Reactance and Length of Stubs
Stub Matching - Impedance (Z) over a 180 degree cycle along a lossless
transmission line.
Impedance (Z) at any single point on a lossless transmission line (for
stub matching)
Series Section Line Transformer (analytic solution) for impedance
matching
Why another calculator program?
There are a variety of programs available to the Radio Amateur that will
calculate virtually every transmission line parameter that one may need.
However, I have found needed routines to be inconveniently scattered
among many different programs. In addition, the programs usually require
the data to be entered in serial form in order to obtain the calculated
output. If another calculation is desired, all the data must be
re-entered. As a result, I felt the need to create a spreadsheet style
program where all input values are displayed and multiple "what-if" data
changes may be implemented quickly with the click of the mouse.
Any question, comments, or constructive criticism is welcomed.
73 de Mike Banz, AA3RL
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|