Elsie the filter program

The Windows ® program for electrical filter design and analysis







Elsie™ is an uncommon commercial-grade lumped-element ("L-C") electrical filter design and network analysis program, directed toward the engineer, technician or hobbyist involved in that line of work.

Here are screen dumps from the program illustrating some of the outputs to the screen. Click on them to see larger versions; use your browser's BACK button to return.


Design menu
Design menu


Analysis menu
Analysis menu


Plot showing transmission and return
Plot S21 & S11


Transmission with limits
S21 with limits


Transmission with limits and markers
S21, limits, markers


Transmission and delay
S21, delay


Normal Smith Chart
Smith Chart


Magnified Smith Chart
Smith 2x, markers


Illustrating a tuning mode
Tuning mode


A tone-burst
Tone burst


Envelope of tone-burst
Envelope of burst


How schematic is presented on-screen
Schematic


Circuit editor screen
Circuit editor


Tabulated output
Tabulated output


Normalized value display
Normalized values


Monte Carlo while running
Monte Carlo running


Monte Carlo stopped
Monte Carlo stopped


Modulation response of a bandpass
Modulation response


Inductor specification
Inductor specs


Overlay example - various orders
Saving overlays


Tuning passband ripple
Tuning passband ripple