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US 5,497,166 AGranted
Dual frequency batwing antenna
OwnerAli R. Mahnadinventor
Life of this patent
Estimating the term…
Abstract
A dual frequency batwing antenna includes a larger batwing with smaller UHF batwings located in substantially the same plane but within a vacant space provided by the larger batwing. The smaller batwings are also co-linear so there is no inductive coupling. Thus a pair of radio frequency signals are radiated from a common aperture.
Claims4
A radio frequency antenna for radiating a pair of radio frequency signals having first and second frequencies with a ratio of substantially two to one or greater comprising:
- a first pair of batwing radiating elements for mounting on a vertical support mast and for radiating said first frequency;
- each said batwing element having an effective conductive sheet partially formed by a top horizontal termination and a bottom horizontal termination which also circumscribe with said support mast a substantially vacant rectangular space;
- two or more smaller batwing radiating elements for radiating a second higher frequency mounted to said mast substantially within said vacant rectangular space of one of said first pair of batwing elements and being substantially co-linear with said effective conductive sheet of said one element.
Dependencies are inferred from the claim text.