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1987-09-25
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REV:9/25/87 SUMMARY OF DISK CONTENTS
Our first disk contains "ALMOND" by Chris Trask, an
optimization and design program for high-frequency networks using
"s" parameters. It features Response analysis, Stability
analysis, Sensitivity analysis and Optimization. A manual is
available. A superb work.
Our second disk contains eight programs that have appeared
in various publications. I have tried all of these and haven't
found any bugs. Vince Hessen found a bug in "UMATCH",(disk 2).
Line 70 in this program should be w=c*d-b*e. This change, from a
plus sign, keeps the definition of the source and load Z
consistent with the definitions in the original article. A
collection of useful programs.
Our third disk is a collection of programs from Dr. Allen
Katz. These disk contains a variety of valuable programs. Many of
these programs were converted from cp/m, a few still have minor
bugs. Some are superbly documented (these have a logo) and others
are still being worked on by Dr. Katz. I have made some fixes and
have noted them in the listings.
Our fourth disk contains seven programs that have appeared
in various publications and one unpublished work. I have run most
of them and have found no bugs.
Our fifth disk contains a mixture of programs, some based
on published articles and some are new. Jeff Crawford, see disk
#4, has contributed seven more programs, all in Turbo Pascal.
Richard Kolbly has sent us a number of programs that are based on
published articles, plus some of his own work.
Disk six contains a number of programs from National
Semiconductor on filter design, digital filter design and
switching regulator design.
Our seventh disk, contains three programs by Jorgan
Anderson. These are general purpose feedback control programs.
They are great for analyzing phase locked loops. They output the
open loop, closed loop response as well as the transient response
to an impulse or step. Inputs are the poles and zeroes of the
transfer function and the loop gain. The compiled version of the
third program would not fit on this disk and is on disk #8.
Disk 8 contains:
1) Smith Chart Calculations & a Propagation program,
both by Lynn Gerig, both published in rf design(6/85 & 8/86).
2) Two programs by Bert K. Erickson , Impedance Matching
Using Stern's Stability Factor, and a Network Analysis program,
both published in recent issues of rf design.
3) Zcalc by Tom Story, unpublished.
Our ninth disk contains two compiled version of Almond. One
requires a math co-processor. The basic version and the sample
files from disk 1 are also on this disk. the manual is only on
disk 1. Two people have yelled for help. The problem was
that the files must be entered in reverse order and the end
statement must have the same "num" as the last element. See file
"ALMOND.DOC".
The tenth disk contains:
1) D_stub, based on Robert Middelveen's article in July 86,
Microwaves & RF.
2) Multiple-Tuned Amplifiers, Jan/Feb 83, rf design, Jack
Porter.
3) Active Filter program by M. Chomet, unpublished.
4) I have been trying to get programs based on the many
articles by Andrzaj B. Przedpelski into pc format. He has
supplied these programs to the library in H.P. Basic format. I
have converted one of the programs he supplied me in H.P. Basic
to run on my pc (Noise Figure of Cascaded Stages). The utility of
this program is that it calculates the noise contribution of
every stage, making it easy to spot where more gain, or a quieter
stage, is needed to reduce the system noise figure.
Hopefully we will get the rest of Mr. Przedpelski's fine
work into pcdos/msdos format.
5) Mr. Vincent Hessen (see disk #4) has sent in a disk
containing enhanced versions of six programs and claims more are
coming.
We are in the process of collecting and evaluating software.
We now have enough material for about 3 more disk.
Please contribute !!!!!!. We still have no programs in such
catagories as oscillator design, directional coupler design, low
noise amplifier design etc... in the library.
To induce engineers to contribute, a complementary order
form will be sent to all who contribute a program that is
published by the library.
Gerald S. Harrison
Sept 25, 1987
file:ABSTRACT.987