SD-FM from Sirio

[humando]

Hello,

I am just wondering if you know this kind of dipole antenna with 3 elements instead 2 ????





Curiously the both poles are grounded and only the lower part of the third element is connected on the "+" (the top is grounded again)...

The information on the antenna is here:

http://www.thiecom.de/sdfm.htm


Thanks for your help.

[humando]

Ooups,

I found the reply on a french website... this is a gamma-match dipole antenna...

----> http://equi-radio.ifrance.com/ante.htm#gamma

... picture of a gamma match antenna:

----> http://equi-radio.ifrance.com/gamma1.htm

[Frogman]

This is a Gamma fed dipole. Any dipole I've seen of this design has been a 75 Ohm impedence. the small element is the gamma match