[BC] Another new antenna for broadcast

Sid Schweiger sid at wrko.com
Thu Apr 1 09:38:57 CDT 2010


Richard B. Johnson opines:  "Hello all,
A new antenna has been designed which swaps dielectric and metal. It consists of a broadband impedance transformer of proprietary design that matches the free-space impedance to the impedance of the air interface.

"This allows the RF field to be retarded and match the propagation characteristics of anything that in embedded in air, for instance, making a section of air seem like a section of metal. Although the complex mathematics is beyond the scope of this note, this results in emulating the characteristics of common antenna types and providing identical characteristics as far as bandwidth, gain, etc., but in extremely small packages.

"The new technology would allow a broadcaster with a five-tower directional array covering ten acres, for instance, to condense the array into a small box sitting on top of a building. The valuable real estate would thereby be freed for other uses."

Designed by Professor I. Lirpa, of course.

Sid Schweiger
IT Manager, Entercom New England
20 Guest St / 3d Floor
Brighton MA  02135-2040



More information about the Broadcast mailing list