Antenna array with wide-band reactance cancellation
AssigneeHrl Laboratories, LLC
InventorsCarson R. White, Jonathan J. Lynch
Life of this patent
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Abstract
An antenna array containing two or more radiating elements, with nearest neighbor radiating elements connected together with a non-Foster circuit at terminals of the radiating elements such that mutual reactance of the elements is reduced over a wider bandwidth than which would be obtained if the non-Foster circuits were omitted.
Claims13
An antenna array comprising two or more radiating elements, with nearest neighbor radiating elements connected together with a non-Foster circuit between terminals of the radiating elements such that a mutual reactance between the nearest neighbor radiating elements is reduced over a wider bandwidth than which would be obtained if the non-Foster circuits were omitted.
An antenna network for coupling a antenna array having two driven antenna elements with a sum-difference network having two outputs, the sum-difference network comprising three negative capacitors, first and second ones of the three negative capacitors each being coupled in series between one of the outputs of the sum-difference network and one of the two driven antenna elements, with the third one of the three negative capacitors being coupled between the two driven antenna elements.
A method of improving stability of the odd mode of an antenna system having one or more negative capacitors coupling neighboring driven elements to one another, the method comprising inserting a negative resistor in series with each of the negative capacitors coupling neighboring driven elements to one another.
Dependencies are inferred from the claim text.