



Guided Wave Technology's Coupling Matrix Synthesis (CMS) software facilitates synthesis of N+2 coupling matrices for Chebyshev band pass filtering functions, with arbitrary finiteposition transmission zeroes. The CMS software allows placement of complex transmission zeroes, which opens up for group delay
shaping. 



Main features in Ver 1.0  
filter orders up to 12  
arbitrary placement of transmission zeroes  
complex transmission zeroes  e.g. group delay shaping and analysis  
extended parameter plotting options  e.g. mag/ phases of S11 and S21, group delay, table listing  
sparameter file (s2p) generation e.g. as input in system simulator  
topology matrix definition of filter circuits  no topology limitations  
advanced graph and marker functions  e.g. marker lines & mouse courser readout  
easily rescalable axes  
excellent overview  input and output parameters are viewed at the same time  
saving and loading of designs  
fast response  
integrated manual  
intuitive and very user friendly interface  
Features added in Ver 2.0:  
Check plot of synthesized characteristics, i.e. ability to compare design goal with actual obtained characteristic  
The values in the coupling matrix may be edited and the corresponding Sparameter curves plotted.  
Coupling matrix values may be displayed in different formats  e.g. bandwidths/ resonance frequencies  
Features added in Ver 3.0 & 3.1:  
MonteCarlo Analysis on couplings  
Extended Coupling Matrix editing functions by mouse rightclick  e.g. sign change, coupling zeroing, etc.  
Coupling Matrix export to text file for use in e.g. circuit simulators  
Features added in Ver 4.0:  
Circuit diagram representation of coupling matrix for better overview.  
Loaded Q and stored energy plots for all resonators. Necessary tool for power handling analysis.  
Features added in Ver 4.1  

Limit lines/filter masks option for fast overview of filter performance  

Error indicator showing quality of synthesized filter characteristics  

Cursor readout of stored energy and loaded Q's  
Features added in Ver 4.2  

Pass/Fail indicators for fast overview of filter compliance  

Calculation of load mismatch influence on stored energies  

Extended number of topologies in circuit diagram catalog  
Features added in Ver 4.3  

Deviation from linear phase plot added  

Extended coupling matrix editing (e,g, 'slider' for stepless variation of couplings)  

Import of coupling matrices  

Plot window made scalable by dragging the mouse  

Max number of points increased to 801  
Features added in Ver 4.4  

Max filter order increased from 12 to 14  
Features added in Ver 5.0  

Spice netlist generation for export of CMS designs into circuit simulators like ADS, Microwave Office, etc.  

Extended Marker readout functionality  


The ability to edit coupling coefficients may be used for:  


Below: MonteCarlo analysis on coupling
coefficients.






The software gives a fast and accurate overview of
versus





Stored energy plots for each resonator is 'a must' for power handling analysis 





The resonance characteristic of a single resonator in CMS is 100% symmetric and couplings are assumed constant versus frequency. The calculated characteristics are therefore most accurate for narrow band filters (< 10 %) with resonating elements which have symmetric characteristics. Check out accuracy and
utility with the following examples: 


1:  
2:  
3:  
4:  
5:  

6a: 
Narrowband
Microwave Bandpass 

6b:  
7:  
8:  
9a:  
9b:  




Some customers: 

To find out more about the CMS software  take a look in the manual, or browse the keyword index for subjects.  


Download
a trial version locked to filter order 5 (size: 10 MB). 

Current SW: Ver 5.0 



IMPORTANT: Once installed  the demo version of CMS must be run as administrator!  
OS requirements:  Windows 7*,8* and 10*  
Java must be installed on your system (32 bit JRE)  
* Verify on your PC that the Demo version runs
satisfactorily before purchasing
the full version 



The full version of the CMS software supports filter orders up to 14 and will be locked to the hardware on your PC.  
A single user license for the CMS tool costs US$ 1200.  
Discount
and upgrade information.


Please contact us for purchasing instructions. 
