Phased array antenna with metastructure for increased angular coverage
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United States of America Patent
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Feb 14, 2023
Grant Date -
Jun 17, 2021
app pub date -
Dec 16, 2019
filing date -
Dec 16, 2019
priority date (Note) -
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Abstract
The disclosed structures and methods are directed to antenna systems configured to transmit and receive a wireless signal in and from different directions. An antenna for transmission of electromagnetic (EM) waves comprises a phased array and a metastructure. The phased array has radiated elements configured to radiate the EM waves. The metastructure is located at a phased array distance from the phased array to receive the EM waves at the first angle and to transmit the EM waves at a second angle, the second angle being larger than the first angle. The metastructure comprises three impedance layers arranged in parallel to each other and each impedance layer comprising a plurality of metallization elements. Each metallization element has a first dipole and a pair of first capacitance arms located on each end of the first dipole approximately perpendicular to the first dipole.
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