I'm looking for the design formulae for creating a LW/MW/SW (and AM Commercial) Broadcast antenna like the ones that used to be installed in the old RCA/Silvertone/etc tube radios, usually wound in a flat square on the fibre-board back cover of the radio itself.
My plan is to place it on such a backing and affix it to the back of a piece of wall art as a stealth antenna.
One on one wall with E/W directionality, and one on another wall with N/S directionality, switching between the two with a selector at the receiver.
My goals are to wind enough wire to provide a good RF capture surface, but also to have the wire coil show an actual impedance of near 52Ω at the feedpoint to match the antenna input of my General Coverage 100Hz to 30Mhz Receiver, with as much of the signal amplitude transferred through 50Ω unbalanced coax, as possible.
I don't mind placing a small air-variable cap at the antenna for tuning the loop, as long as the array's impedance can be maintained.
Icing on the cake would be if the antenna were able to handle a small amount of RF transmitted through it (perhaps 5-10 watts max) and be easily matched with a minimal L/C tuning circuit. Another reason for desiring the natural impedance match.
Thoughts ?
Thanks !
(sorry, 10 min edit limit expired in the process of editing)
My plan is to place it on such a backing and affix it to the back of a piece of wall art as a stealth antenna.
One on one wall with E/W directionality, and one on another wall with N/S directionality, switching between the two with a selector at the receiver.
My goals are to wind enough wire to provide a good RF capture surface, but also to have the wire coil show an actual impedance of near 52Ω at the feedpoint to match the antenna input of my General Coverage 100Hz to 30Mhz Receiver, with as much of the signal amplitude transferred through 50Ω unbalanced coax, as possible.
I don't mind placing a small air-variable cap at the antenna for tuning the loop, as long as the array's impedance can be maintained.
Icing on the cake would be if the antenna were able to handle a small amount of RF transmitted through it (perhaps 5-10 watts max) and be easily matched with a minimal L/C tuning circuit. Another reason for desiring the natural impedance match.
Thoughts ?
Thanks !
(sorry, 10 min edit limit expired in the process of editing)