Post subject: matching 2 sources to 1 antenna Posted: Wed
Jun 21, 2006 2:20 pm
Joined: Thu May 18, 2006
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.
Post subject: Posted: Wed Jun 21, 2006
Joined: Tue Apr 11, 2006 8:13 pm
You could use a directional coupler or a Wilkinson power divider,
though at 175 MHz, it might be quite big.