APPARATUS FOR CORRECTING PHASE OF PHASED ARRAY ANTENNA AND METHOD THEREOF
First Claim
1. An apparatus for correcting a phase of a phased array antenna for receiving a radio signal, comprising:
- a phased array antenna for receiving radio signals from a reference antenna and combining power of the received radio signals;
a power dividing means for dividing the combined power of the received radio signals;
a voltage detecting means for detecting voltage values of the divided radio signals; and
a phase controlling means for estimating a phase error that makes the detected voltage value maximum and controlling a phase of each radiation element of the phased array antenna using the estimated phase error.
1 Assignment
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Accused Products
Abstract
Provided are an apparatus for correcting a phase of a phased array antenna and a method thereof. The apparatus for correcting a phase of a phased array antenna for receiving a radio signal, includes a phased array antenna for receiving radio signals from a reference antenna and combining power of the received radio signals, a power dividing unit for dividing the combined power of the received radio signals, a voltage detecting unit for detecting voltage values of the divided radio signals, and a phase controlling unit for estimating a phase error that makes the detected voltage value maximum and controlling a phase of each radiation element of the phased array antenna using the estimated phase error.
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Citations
13 Claims
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1. An apparatus for correcting a phase of a phased array antenna for receiving a radio signal, comprising:
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a phased array antenna for receiving radio signals from a reference antenna and combining power of the received radio signals; a power dividing means for dividing the combined power of the received radio signals; a voltage detecting means for detecting voltage values of the divided radio signals; and a phase controlling means for estimating a phase error that makes the detected voltage value maximum and controlling a phase of each radiation element of the phased array antenna using the estimated phase error. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for correcting a phase of a phased array antenna for transmitting a radio signal, comprising:
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a phased array antenna for transmitting radio signals; a reference antenna for receiving the radio signal transmitted from the phased array antenna for transmitting; a voltage detecting means for detecting voltage values of the radio signal received at the reference antenna; and a phase controlling means for estimating a phase error that makes the detected voltage value maximum and controlling a phase of each radiation element of the phased array antenna using the estimated phase error. - View Dependent Claims (7, 8, 9, 10)
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11. A method for correcting a phase of a phased array antenna, comprising:
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generating objects having phase information used for correcting the phase of the phased array antenna; correcting a phase error of the phased array antenna according to each of the phase information of the generated objects; detecting a voltage value of a signal passing through the corrected phase array antenna and determining whether a predetermined convergence condition is satisfied by the detected voltage value or not; deciding the phase information as a final phase correction value of the phased array antenna if the predetermined convergence condition is satisfied; and generating an object having new phase information using previously detected voltage values if the predetermined convergence condition is not satisfied and performing said correcting a phase error. - View Dependent Claims (12, 13)
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Specification