Triad RF Systems
LadyBug Technologies LB480A RF Power Sensor Connectors - RF Cafe

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
    Kirt Blattenberger,


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:

Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes App Notes Calculators Education Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Symbols for Visio - Word Advertising RF Cafe Homepage Thank you for visiting RF Cafe!
Anatech Electronics

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
-- Anecdotes, Gripes & Humor
-- Antennas
-- CAE, CAD, & Software
-- Circuits & Components
-- Employment & Interviews
-- Miscellany
-- Swap Shop
-- Systems
-- Test & Measurement
-- Webmaster

Post subject: DPDT RF Switches Posted: Sun Mar 02, 2008 10:59 pm


Joined: Sun Mar 02, 2008 6:25 am
Posts: 2
I have searched the RF world but can't find any DPDT Switches for Differential RF Application from 1MHz to 3 GHz. Any recommendations?


Kirt Blattenberger
Post subject: Posted: Thu Mar 06, 2008 1:38 pm

Site Admin

Joined: Sun Aug 03, 2003 2:02 pm
Posts: 308
Location: Erie, PA
Greetings picasso:

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.

Any other specs you can provide would help people understand your need better.

- Kirt Blattenberger
RF Cafe Progenitor & Webmaster


Post subject: Posted: Sat Mar 08, 2008 12:37 am


Joined: Sun Mar 02, 2008 6:25 am
Posts: 2
Hello Kirt,
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.

Posted  11/12/2012
Copper Mountain Technologies - RF Cafe
Werbel Microwave - RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free