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:
DPDT RF Switches - 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: DPDT RF Switches Posted: Sun Mar 02, 2008
Joined: Sun Mar 02, 2008 6:25 am
I have searched the RF world but can't find any DPDT Switches
for Differential RF Application from 1MHz to 3 GHz. Any recommendations?
Post subject: Posted: Thu
Mar 06, 2008 1:38 pm
Joined: Sun Aug 03,
2003 2:02 pm
Location: Erie, PA
What kinds of power levels are you looking for? If not too high,
try researching front-end modules for wireless applications from somebody
like muRata. Some of them still use double-ended I/O.
specs you can provide would help people understand your need better.
- Kirt Blattenberger
RF Cafe Progenitor &
Post subject: Posted: Sat
Mar 08, 2008 12:37 am
Joined: Sun Mar 02,
2008 6:25 am
Specifications are as follows,
Freq : 1 MHz to 3 GHz
Power Level : 10dBm
Switch : DPDT
RFIC ( not Diversity Switch )
I need to switch differential RF Signals
on my board. I am able to find plenty of SPDT IC, but have not yet come
across DPDT IC.
Macom has DPDT available in die form which is not
much useful. I could use two SPDT but I was hoping that a single DPDT
IC will be better able to match impedance on my board.