PARFIL Capabilites

FILTER RESPONSE TYPES

Designs for Chebychev,

Butterworth or Flat Group Delay

responses may be computed for

any ripple and up to 17 sections.

TUNE CAPABILITY

A tuning screen may be accessed

to permit changing circuit

parameters such as even and odd

mode impedances or tap point

location.

TAPPED INPUT DESIGNS

Filter size may be reduced by

tapping directly into the input/ output parallel coupled lines.

VARY INTERNAL IMPED

This capability gives control over

line widths or rod diameters.

SPECIAL CAPABILITY for

ROUND ROD FILTERS

Round rod Interdigital or

Combline filters have additional

design choices as selecting equal

rod diameters, choosing side wall

or end wall distances.

FREQUENCY RESPONSE

Frequency response is computed

including loss, return loss, group

delay or S-Parameters.  Also, an

S-Parameter file may be created.

GRAPHICS CAPABILITY

Frequency response or the

drawing of the filter may be

displayed on your monitor or

plotted or saved to a file.  You

may also save to a Windows

Metafile or create a bitmap on

your clipboard for past

ing into another document such as

Microsoft Word.(T)

BAND-STOP NARROW BAND-WIDTH

STEPPED IMPEDANCE BAND-PASS

INTERDIGITAL OPEN STUB IN/OUT

WIDE-BAND BAND-STOP

COAXIAL LOW-PASS

WIDE BANDWIDTH BAND-PASS

TAPPED PARALLEL COUPLED

TRANSFORMER PARALLEL COUPLED

LOW-PASS WITH ZERO NOTCH

GAP-COUPLED HIGH-PASS

INTERDIGITAL SHORT IN/OUT

HAIRPIN PARALLEL-COUPLED IN/OUT