Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Reexamination Certificate
2005-02-15
2005-02-15
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
C343S722000, C343S819000, C343S745000
Reexamination Certificate
active
06856299
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.
REFERENCES:
patent: 2949607 (1960-08-01), Lamb
patent: 2976532 (1961-03-01), Guest
patent: 5424751 (1995-06-01), Collier
Chen Shih-Chao
Sawyer Law Group LLP
LandOfFree
Horizontal polarized bi-directional FM stereo antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Horizontal polarized bi-directional FM stereo antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Horizontal polarized bi-directional FM stereo antenna will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3497650