WaveCon

Parfil

Parfil designs twenty different coupled and transmission line RF/microwave filter types. All of the parameters needed for filter construction are computed. The program accounts for "T", cross, via and step junction effects. It also accounts for unequal phase velocities in coupled microstrip designs. Data is supplied in tabular and graphical form for either English or Metric units. The filter types are:

 

BAND-PASS COUPLED LINE FILTERS:

Half wave - parallel coupled three coupling types

Interdigital - three types of input/output coupling

Combline - two types of input output coupling

Hairpin - two types of input/output coupling

 

BAND-PASS TRANSMISSION LINE FILTERS:

End coupled half wave

Quarter wave shunt stub

Stepped Impedance

 

LOW-PASS TRANSMISSION LINE FILTERS:

Shunt stub series line

Shunt stub series line - Elliptic Response

Stepped Impedance

 

 

 

 

HIGH-PASS TRANSMISSION LINE FILTERS:

Gap coupled & open stubs

Quarter wave shunt stub

 

BAND-STOP FILTERS:

Narrow-band quarter wave coupled line

Wide-band quarter wave shunt stub

 

STRUCTURES:

Microstrip

Shielded Microstrip

Stripline

Suspended Substrate

Rods Coupled through Septum

Round Rods

Rectangular Bar

Coax (some Filters)

 

DRAW CAPABILITY:

Creates DXF file

Printed filter drawings on these

Pages were created from DXF files.

 

CREATES NODAL ANALYSIS FILE:

Creates a file for most filters for importing into ProCAP.  Useful for creating diplexer designs adding other circuit elements and for performing MonteCarlo analysis.  .

 

 

 

 

Multiple Windows

 

Frequency Response

Plots

 

Designs Flat Group

Delay Filters

 

Frequency Response

 Numerical Output

 

Filter Layout

 Provided

Septum