Antenna calibration
First Claim
1. A method of self-calibration of a plurality of calibration antennas comprising the steps of:
- (i) mounting the plurality of calibration antennas around an antenna array;
(ii) selecting two calibration antennas to be calibrated that have a common area of the array in range of both calibration antennas, said selected two calibration antennas forming a pair of calibration antennas;
(iii) selecting at least one radiating element from the array within range of the pair of calibration antennas;
(iv) transmitting a known test signal from the one or more selected radiating elements;
(v) measuring a received signal at each of the pair of calibration antennas;
(vi) comparing the received signals at each of the pair of calibration antennas; and
(vii) determining a correction coefficient for each calibration antenna of said pair of calibration antennas based on the received signals at the said pair of calibration antennas.
1 Assignment
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Accused Products
Abstract
The present invention relates to antenna calibration for active phased array antennas. Specifically, the present invention relates to a built in apparatus for autonomous antenna calibration
Accordingly, the present invention provides a method of self-calibration of a plurality of calibration antennas comprising the steps of: (i) selecting two calibration antennas to be calibrated that have a common area in range of both calibration antennas; (ii) selecting at least one radiating element within range of the two calibration antennas; (iii) transmitted a known test signal from the one or more selected radiating elements; (iv) measuring a received signal at each of the two calibration antennas; (v) comparing the received signals at each of the two calibration antennas; and (vi) determining a correction coefficient for each calibration antenna based on the received signals at the said calibration antennas.
56 Citations
5 Claims
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1. A method of self-calibration of a plurality of calibration antennas comprising the steps of:
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(i) mounting the plurality of calibration antennas around an antenna array; (ii) selecting two calibration antennas to be calibrated that have a common area of the array in range of both calibration antennas, said selected two calibration antennas forming a pair of calibration antennas; (iii) selecting at least one radiating element from the array within range of the pair of calibration antennas; (iv) transmitting a known test signal from the one or more selected radiating elements; (v) measuring a received signal at each of the pair of calibration antennas; (vi) comparing the received signals at each of the pair of calibration antennas; and (vii) determining a correction coefficient for each calibration antenna of said pair of calibration antennas based on the received signals at the said pair of calibration antennas. - View Dependent Claims (2, 3, 4, 5)
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Specification