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...
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My Hobby Website:
New in MICROSTRIP COUPLERS - 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: New in MICROSTRIP COUPLERS Posted: Wed Sep
02, 2009 11:43 am
Joined: Mon Jul 18, 2005
I would like to design a MICROSTRIP
DIRECTIONAL COUPLER of 20dB for UHF band. I am quite new in this kind
of couplers. How to begin the design with ADS and its MOMENTUM tool?Which
are the steps?
Re: New in MICROSTRIP COUPLERSPosted: Fri Sep 04, 2009 11:26 am
Joined: Mon Jun 27, 2005 2:02 pm
I am also new to
this topic. From what I remember, in ADS there are models of coupled
lines and also of couplers under the Microstrip line library, which
you can utilize as a start point for your design.
First, a linear
simulation to estimate the dimensions of the microstrip lines based
on the required coupling, reflections and isolation requirements.
The next step is to do EM simulations.
In addition, I have
found in Google this article, which shed some light on the design steps:
http://www.engr.uky.edu/~gedney/courses ... hybrid.pdf