Copyright: 1996 - 2024
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while tying up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
RF Input Impedance Software - RF Cafe Forums
RF Cafe Forums closed its virtual doors in 2012 mainly due to other social media
platforms dominating public commenting venues. RF Cafe Forums began sometime around
August of 2003 and was quite well-attended for many years. By 2010, Facebook and
Twitter were overwhelmingly dominating online personal interaction, and RF Cafe
Forums activity dropped off precipitously. If the folks at
phpBB would release a version with integrated
sign-in from the major social media platforms, I would resurrect the RF Cafe Forums,
but until then it is probably not worth the effort. Regardless, there are still
lots of great posts in the archive that ware worth looking at.
Below are the old forum threads, including responses to the original posts.
|-- Amateur Radio
Gripes & Humor
-- CAE, CAD, &
Test & Measurement
Post subject: RF Input Impedance Software
postPosted: Mon Mar 28, 2005 6:58 pm
RF Cafe Forums, I am doing
R & D development work
on some projects and need the following
What do any of you have or know about in software that would
take any combination of passive circuit elements such as R L C (in any
combinations - series/parallel etc.) including several BALANCED transmission
lines of any length & Zo (lossy and lossless) connected in various
combinations to produce a desired effect over RF frequency ranges. Basically
- the immediate circuit project requires a desired input impedance characteristics
and with careful planning ball park - try the potential circuit in a
computer software simulation mode
to see if the component selections
are working as desired.
If the software exists - I would assume
that it would be able to calculate
the currents/voltages/phase at
any node in the complex circuit with a given voltage input to the circuit.
RF Engineering Consulting
subject: Try ADS
Unread postPosted: Tue Mar 29, 2005 3:37 am
Try Agilent ADS, I think it will do the job.
Tue Mar 29, 2005 9:33 am
ADS is fine if you have $80K laying
around. If the circuits are not larger than 25 components , then ANSOFT
Serenade student version is free and will also, do the job. If the project
will not last more than 30 days, then Microwave Office will allow you
to evaluate a full version for free. Finally, Eagleware, Genesis is
~4K, but they have another version that will do the job for you that
is 1K. ADS, for now is the leader, but they are quickly loosing ground
to Microwace Office in the IC platforms and Eagleware in the RF platforms.