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US 4,396,920 AGranted
Broad-band small-size radio-frequency antenna system
OwnerDavid Grimberg, Yoram Kolinventors
Life of this patent
Estimating the term…
Abstract
A broad-band, small-size radio-frequency antenna system includes a transmission line antenna feeding a monopole antenna, the antenna system exploiting the opposite narrow-band characteristics of the above antennas so as to complement each other and to produce an antenna system of broad-band monopole antenna characteristics.
Claims9
A broad-band radio-frequency antenna system characterized in that it includes a ground plane;
- a first bar extending therethrough substantially at a right angle to the ground plane;
- a second bar connected to said first bar and extending substantially parallel to said ground plane, said second bar being located and dimensioned to form a transmission line antenna with said ground plane;
- and a third bar connected to the end of said second bar opposite to said first bar and extending away from said ground plane substantially at a right angle thereto to define an antenna having broad-band monopole antenna characteristics.
Dependencies are inferred from the claim text.