Jack Charles Seibert

US Patent:

6856299, Feb 15, 2005

Filed:

Jan 27, 2003

Appl. No.:

10/351720

Inventors:

Jack Seibert - Redwood City CA, US

International Classification:

H01Q009/16

US Classification:

343822, 343722, 343819, 343745

Abstract:

A frequency modulation antenna includes: a hermetically sealed driver assembly, which includes a driver tube, a gamma tube, a spacer stamping between the driver tube and the gamma tube, and an impedance matching block assembly between the driver tube and the gamma tube. The antenna eliminates conventional sources of signal degradation and interference due to its bi-directional nature, the hermetic sealing of the driver assembly, the coupling methods that prevent corrosion, and the dielectric coating. The antenna is further mounted to provide strength against the elements, facilitated by the precise mating of the driver assembly, the impedance matching block assembly, and a cleat to the mounting block, and the engagement of the teeth of the cleat and the serrations of a U-bolt to a pole. The antenna is significantly smaller than many conventional antennae while still being able to receive signals of low power without undue degradation or interference.