Device for extending a scan range of a phased antenna array
AssigneesHuawei Technologies Canada Co., Ltd., The Governing Council of the University of Toronto
InventorsJaemin Kim, Wenyao Zhai, George Eleftheriades, Gleb Egorov
Life of this patent
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Abstract
A phased antenna array is operable to generate a radio-frequency beam having a first beam angle. A converging lens adjusts the beam generated by the phased antenna array to output a first adjusted beam. A diverging lens adjusts the first adjusted beam to output a second adjusted beam having a second beam angle. The converging lens and the diverging lens are positioned relative to the phased antenna array such that the second beam angle is greater than the first beam angle, such that a scan range of the phased antenna array is increased.
Claims20
A device comprising:
- a phased antenna array operable to generate a radio-frequency beam having a first beam angle;
- a converging lens for adjusting the beam generated by the phased antenna array to output a first adjusted beam;
- and
- a diverging lens for adjusting the first adjusted beam to output a second adjusted beam having a second beam angle,
- wherein the converging lens and the diverging lens are positioned relative to the phased antenna array such that the second beam angle is greater than the first beam angle, and such that as a result a scan range of the phased array is increased.
A method of increasing a scan range of a phased antenna array, comprising:
- generating, using the phased antenna array, the radio-frequency beam having a first beam angle;
- receiving, by a converging lens, the radio-frequency beam, and outputting a first adjusted beam from the converging lens;
- and
- receiving, by a diverging lens, the first adjusted beam, and outputting a second adjusted beam from the diverging lens, wherein the second adjusted beam has a second beam angle,
- wherein the second beam angle is greater than the first beam angle such that the scan range of the phased array is increased.
Dependencies are inferred from the claim text.