faisyn.txt

非常方便的滤波器设计软件

NOTE: Use Notepad to print this document	10/15/96

**** Registered users should be sure to send their 
current EMAIL adresses for updates & new product info.

EMAIL TO:	[e-mail]

FaiSyn Automatic Filter Synthesizer For Windows

1.0 INTRODUCTION:

FAISYN is a low cost, effective alternative to expensive commer-
cial filter synthesis packages.  The program has been used 
successfully to design countless lumped element filters and 
diplexers from 10's of KHz to 1.5GHz  and is the result of many 
years experience in filter design.  Many designers know that 
filter design is often an iterative process.  In the old days a 
lot of tedious number grinding was required to arrive at an 
optimal solution.  FAISYN eases the burden by allowing the 
designer to quickly synthesize and simulate a variety of circuits.
These circuits may also be exported and simulated on one of 
the popular commercial circuit simulators (FAISYN currently 
supports PSPICE-TM Microsim, MMICAD-TM Optotek and TOUCHSTONE-
TM HP/EESOF circuit formats).


NOTE: An evaluation version of PSPICE capable of running FAISYN 
filter circuits is available at very low cost from Microsim Corp
or for free from the EDN magazine BBS.

1.1 INSTALLATION:

1) Create the directory C:\FAISYN on your hard drive.
2) Copy the files from floppy to C:\FAISYN, unzip if necessary.
3) Under the Windows Program Manager:
	-Select File-New-Program, click OK
	-Type C:\FAISYN\FAISYN.EXE in the command line box.
	-Type C:\FAISYN in the working directory box, click OK.
	-Faisyn is now installed in the current active Program 
	Group (ie, Main, Accessories, etc).


Alternatively, the program my be started by selecting File-Run in
Program Manager and typing c:\faisyn\faisyn.exe in the Command 
Line Box.  


1.2 RUNNING FAISYN FOR THE FIRST TIME:

FAISYN uses modern filter design theory to compute lumped element 
low, high and bandpass filters.  All filters are based on 
normalized low pass prototypes. The design and simulation process
takes place in two seperate windows.  The "General Filter Design 
Window" is where the user inputs the desired design parameters 
such as source and load resistances and filter order N.  The 
filter type (Butterworth, Chebyshev, etc), transformation (Low 
Pass,High Pass, Band Pass, etc) and circuit file format (MMICAD, 
PSPICE or TOUCHSTONE) are also selected in this window. After all
the parameters have been set the user selects the synthesize 
button to calculate and display the network.  The program may 
prompt youfor additional information during this process depending 
upon the design parameters chosen. You may respecify and 
synthesize the network as many times as you like.

When a suitable design has been found you may choose the simulate
button to open the "Network Analyzer" window.  Select the sweep
button to see the response of your network.  The default settings
will display the magnitude of S21 and S11 of your network in dB 
format.  You may choose a variety of other display variables and
plot formats by setting the corresponding controls.  You may zoom 
in to a particulate portion of the plot by adjusting the scaling
on the horizontal and vertical axis.  The plot title may be 
changed by selecting "Options".  Select "Print" to get a hardcopy 
of your simulation plot.  You may want to set your printer to 
landscape mode for best results.  When you finish your simulation 
select "Close" to return to the "General Filter Design Window".

There are several options that have not been completed in this 
release of the program.  These include the "USER DEFINED" and 
"ELLIPTIC" filter responses and Smith Chart plot capability.  
Although displayed, they cannot be selected by the user.


2.0 REGISTRATION:

There are many enhancements planned for the program, however the 
rate at which these will be implemented will depend on the 
response from the user community.  FAISYN is SHAREWARE and is not
free.  The beauty of shareware is that it allows the user to try 
the software for a period of time to determine if it is truly 
useful before paying for it.  Registering the product gives me
motivation to make improvements and allows me to cover some of
the costs involved (software, books & hardware, etc).  So try it 
for thirty days and let your conscience be your guide!  

For those of you without a conscience (just kidding!) I have add-
itional incentives including a set of filter application 
notes and at least one free (probably more...) update to a future
revision of FAISYN.  


2.1 "IN THE WORKS":

Another product FAISYN-MATCH is also "in the works". FAISYN-MATCH 
aids in the design of broad band impedance matching networks and 
has been used to design state of the art high dynamic range RF 
and Microwave amplifiers. These are real world production 
designs, both discrete and monolithic. Again, registered users 
will be notified when this product is released.

Comments and suggestions for future releases are welcome and 
greatly appreciated.




                         Kevin Faison
			 Carriage House Engineering
			 EMAIL: [e-mail]


2.2 Updates in this release

The current version of FaiSyn Automatic Filter Synthesizer is 2.1

The following improvements and/or fixes have been incorporated in this release.

-Version 2.0
	1) Added distributed parallel line coupled filters.
	2) Added distributed stepped impedance resonator filters.
	3) Added additional design hints.
	4) Added solid & dashed lines for hard copy plots.
	5) Fixed option buttons to reflect their availability during design & simulation.
	6) Resized many of the design windows to prevent clipping on low resolution systems.
	7) Added EMAIL address to the author (still evaluating my present provider,
	address could still change.  Snail mail is still OK).

-Version 2.1
	1) Fixed spice file format in HP filters.
	2) Added Top-C coupled band pass filter.


3.0                     License Agreement
                        -----------------

The use of FAISYN is subject to the following terms and condi-
tions.

FAISYN is copyrighted material. It is protected by the copy-
right laws of the United States. You may not make any changes
or modifications to FAISYN. You may not decompile, disassemble
or otherwise reverse engineer the software in any way.

You may use FAISYN on a trial basis provided you do not violate
the protection afforded the licensed software by the copyright
laws, and you agree to the terms of the license agreement. If 
you continue to use FAISYN past a 30 day evaluation period you
are obligated to purchase a license for its use.

You may use FAISYN on a Local Area Network providing that a 
license is obtained for the number of users that may concurrent-
ly use the software.  Information on site licenses is available
by calling the author.

FAISYN (Windows version) registration fee:
 
Corporate Users..................		$89.95 
Private Indiviuals and educational users......	$35.00
                
Please include an additional $5.00 shipping & handing ($10.00 
for orders outside the United States). Payment should be made
to Kevin Faison and mailed to,


		Kevin Faison
                Carriage House Engineering
                16 West Pleasant Hill Rd.
		Owings Mills, MD 21117
		[phone]
 
	(No credit cards are accepted at this time)
	(Please do not call after 7:00PM EST)

When you send in your registration you will receive the most 
up to date copy of FaiSyn (with serial #) along with a set of
filter application notes.	
		
Licensed users will be notified of future revisions and upgrade 
fee (if any). 

**********************************************************
*    An order form is supplied under the Help menu in    *
*    the FAISYN program for your convenience!            *
**********************************************************

Title to the licensed software is NOT transferred to the end 
user.  The end user is granted an exclusive license to use the
software on one computer or computer work station at any given 
time.

4.0                     Limited Warranty
                        ----------------

Carriage House Engineering does not warrant that the licensed 
software will meet your requirements or that the operation of 
the software will be uninterrupted or error free.  The warranty
does not cover any media or documentation which has been 
subjected to damage or abuse by you or others. The software 
warranty does not cover any copy  of the licensed software which
has been altered or changed in any way.

ANY IMPLIED WARRANTIES INCLUDING ANY WARRANTIES OF MERCHANT-
ABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE
TERM OF THE EXPRESS WARRANTIES. Some States do not allow limit-
ations on how long an implied warranty lasts, so the above 
limitation may not apply to you.

The warranties set forth above are in lieu of any and all other
express or implied warranties, whether oral, written, or implied,
and the remedies set forth above are the sole and exclusive 
remedies.

Carriage House Engineering is not responsible for any problems 
or damage caused by the licensed software that may result from 
using the licensed software. This includes, but is not limited 
to, computer hardware, computer software, operating systems, 
and any computer or computing accessories. End user agrees to 
hold Carriage House Engineering harmless for any problems 
arising from the use of the software.

Carriage House Engineering SHALL NOT IN ANY CASE BE LIABLE FOR 
ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, INDIRECT OR OTHER SIMI-
LAR DAMAGES ARISING FROM ANY BREACH OF THESE WARRANTIES EVEN IF 
Carriage House Engineering OR ITS AGENTS OR DISTRIBUTORS HAVE 
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.  Some states 
do not allow the exclusion or limitation of incidental or con-
sequential damages, so the above limitation or exclusion may 
not apply to you.

In no case shall Carriage House Engineering's liability exceed 
the license fees paid for the right to use the licensed software.


5.0                     FAISYN Distribution
                        -------------------


You are granted a limited license to copy FAISYN only for the 
trial use of others subject to the terms of this software 
license agreement described herein, and the conditions 
described below are met:

FAISYN MUST be copied in an unmodified form and MUST contain 
the following files:
        		FAISYN.exe
        		FAISYN.txt
			

No fee, charge or other compensation may be accepted or 
requested by anyone without the express written permission
of Carriage House Engineering.

Public Domain Disk Vendors may not charge a fee for FAISYN 
itself. However you may include FAISYN on a diskette for which
you charge a nominal distribution fee. The purchaser of said
diskette must be informed in advance that the fee paid to 
acquire the diskette does NOT relieve said purchaser from 
paying the Registration Fee for FAISYN if said purchaser uses
FAISYN.

Operators of electronic bulletin board systems (Sysops) may 
post FAISYN for downloading by their users without written 
permission only as long as the above conditions are met.  A
fee may be charged for access to the bbs as long as no specific
fee is charged for downloading FAISYN files without first 
obtaining express written permission from Carriage House 
Engineering to charge such a fee.

Distributors of public domain and user supported software, 
such as disk vending services, may not charge a fee for FAISYN
itself. However you may include FAISYN on a diskette for which
you charge a nominal distribution fee. The purchaser of said 
diskette must be informed in advance that the fee paid to 
acquire the diskette does NOT relieve said purchaser from 
paying the Registration Fee for FAISYN.

The above constitutes the license agreement for FAISYN.  It 
supersedes any and all previous license agreements.