appropriate balun/connector for wideband biconical antenna
appropriate balun/connector for wideband biconical antenna
(OP)
I'm constructing a biconical antenna which is to operate in the 30MHz-3GHz frequency range (yes, its sizable!). I'm curious as to the best type of balun to implement as well as the best connector system to use.
Find attached a diagram of the antenna. Side-length is 30cm, and conical half-angle is 45 degrees. The radio receiver is located below (where the coaxial cable is leading to).
I was thinking about using an 'ugly/common-mode choke balun' which essentially involves covering part of the coax with ferrite beads.
Any ideas will be most appreciated.
Find attached a diagram of the antenna. Side-length is 30cm, and conical half-angle is 45 degrees. The radio receiver is located below (where the coaxial cable is leading to).
I was thinking about using an 'ugly/common-mode choke balun' which essentially involves covering part of the coax with ferrite beads.
Any ideas will be most appreciated.





RE: appropriate balun/connector for wideband biconical antenna
The interface to the feedline is the only tricky part of the build. Ideally you would have a machined assembly that meets the cones, and mounts the RF connector (probably N-type). The design should be constant impedance, including consideration of the dielectric properties of any insulators used. Electrical contact should be 360-degree.
Once you have the center piece made, the rest is easy.
RE: appropriate balun/connector for wideband biconical antenna
RE: appropriate balun/connector for wideband biconical antenna