Phased array antenna and a method of operating a phased array antenna
First Claim
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1. A phased array antenna comprising:
- a plurality of antenna elements, each configured to receive an electromagnetic signal and to generate an output signal in response to the received electromagnetic signal; and
a phase feedback system configured to compare the output signal of at least one antenna element with a consensus output signal representing a composite of output signals of more than two of the antenna elements to generate at least one phase control signal for bringing the output signal of said at least one antenna element in concordance with said consensus output signal.
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Abstract
An element of a phased array antenna is provided. The element comprises a phase tracking circuit configured to multiply the in-phase component (In) of a local output signal by the quadrature phase component (Qout) of an external output signal to generate a phase control signal (535) and/or to multiply the quadrature component (Qn) of a local output signal by the in-phase component (Iout) of an external output signal to generate a phase control signal (535).
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Citations
31 Claims
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1. A phased array antenna comprising:
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a plurality of antenna elements, each configured to receive an electromagnetic signal and to generate an output signal in response to the received electromagnetic signal; and a phase feedback system configured to compare the output signal of at least one antenna element with a consensus output signal representing a composite of output signals of more than two of the antenna elements to generate at least one phase control signal for bringing the output signal of said at least one antenna element in concordance with said consensus output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for signal processing in a phased array antenna comprising:
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providing a plurality of antenna elements, each configured to receive an electromagnetic signal and to generate an output signal in response to the received electromagnetic signal; providing a consensus output signal representing a composite of output signals of at least a subset of the plurality of antenna elements, wherein said subset of the plurality of antenna elements comprises more than two of the antenna elements; comparing the output signal of each of the plurality of antenna elements with the consensus output signal; and generating, for each of said antenna elements, a phase control signal for temporally aligning the output signal of said antenna element with the consensus output signal. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification