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matching 2 sources to 1 antenna - RF Cafe Forums
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bamatom
Post subject: matching 2 sources to 1 antenna Posted: Wed
Jun 21, 2006 2:20 pm
Lieutenant
Joined: Thu May 18, 2006
9:46 am
Posts: 3
I have two 50 Ohm sources, 190 MHz and 160 MHz,
10 dBm. I want to connect both sources to one lambda/4 antenna (center
frequency = 175 MHz) to transmit the two signals at the same time. Do
I need something like a directional coupler because I want a high isolation
between the two sources? In addition, I need a matching circuit for
both sources. Does anyone have an idea what type of circuit design will
be the best choice for this application?
Thank you for your help.
Top
karthik
Post subject: Posted: Wed Jun 21, 2006
5:33 pm
Colonel
Joined: Tue Apr 11, 2006 8:13 pm
Posts:
34
You could use a directional coupler or a Wilkinson power divider,
though at 175 MHz, it might be quite big.
Posted 11/12/2012
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