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DPDT RF Switches - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


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

Lieutenant

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?


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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.

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- Kirt Blattenberger
RF Cafe Progenitor & Webmaster


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

Lieutenant

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.







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