Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1982-09-07
1985-05-21
Lieberman, Eli
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343803, 343813, 343815, 343846, H01Q 916
Patent
active
045189684
ABSTRACT:
Multiband dipole antennas connected to a coaxial feeder are usually not balanced and are not operated at maximum efficiency. In the present invention pairs of capacitors are connected at the feed point of respective half-wave dipoles, associated with different frequency bands to reduce these deficiencies. A similar technique is useful for single band half-wave dipoles and allows unbalanced multiband ground plane antennas to be constructed.
REFERENCES:
patent: 2235139 (1941-03-01), Bruce
Lieberman Eli
National Research Development Corporation
Ohralik K.
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