SYSTEM AND METHOD FOR GENERATING A REFERENCE SIGNAL FOR PHASE CALIBRATION OF A SYSTEM
First Claim
1. A two-element array antenna system, comprising:
- a first antenna element and a second antenna element, the first antenna element comprising a first frequency multiplier, the second antenna element comprising a second frequency multiplier; and
a transmitting, receiving, and processing (TRP) system coupled to the first and second antenna elements, the TRP system being coupled to the first antenna element via a single first transmission element, the TRP system being coupled to the second antenna element via a single second transmission element,wherein the TRP system is configured to;
transmit to the first antenna element a first input signal at a sub-multiple of a first frequency,receive from the first frequency multiplier a first calibration signal based on the first input signal,transmit to the second antenna element a second input signal at a sub-multiple of the first frequency,receive from the second frequency multiplier a second calibration signal based on the second input signal, anddetermine, based on the first and second calibration signals, a relative phase difference between the first and second transmission elements.
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Accused Products
Abstract
A two-element array antenna system includes a first antenna element and a second antenna element. The first and second antenna elements respectively include first and second frequency multipliers. A transmitting, receiving, and processing (TRP) system is coupled to the first and second antenna elements via, respectively, a single first transmission element and a single second transmission element. The TRP system is configured to transmit to the first antenna element a first input signal at a sub-multiple of a first frequency, receive from the first frequency multiplier a first calibration signal based on the first input signal, transmit to the second antenna element a second input signal at a sub-multiple of the first frequency, receive from the second frequency multiplier a second calibration signal based on the second input signal, and determine, based on the calibration signals, a relative phase difference between the first and second transmission elements.
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Citations
19 Claims
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1. A two-element array antenna system, comprising:
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a first antenna element and a second antenna element, the first antenna element comprising a first frequency multiplier, the second antenna element comprising a second frequency multiplier; and a transmitting, receiving, and processing (TRP) system coupled to the first and second antenna elements, the TRP system being coupled to the first antenna element via a single first transmission element, the TRP system being coupled to the second antenna element via a single second transmission element, wherein the TRP system is configured to; transmit to the first antenna element a first input signal at a sub-multiple of a first frequency, receive from the first frequency multiplier a first calibration signal based on the first input signal, transmit to the second antenna element a second input signal at a sub-multiple of the first frequency, receive from the second frequency multiplier a second calibration signal based on the second input signal, and determine, based on the first and second calibration signals, a relative phase difference between the first and second transmission elements. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A two-element array antenna system, comprising:
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a first antenna element and a second antenna element; a mixer element coupled to the first and second antenna elements; and a transmitting, receiving, and processing (TRP) system coupled to the first and second antenna elements, the TRP system being coupled to the first antenna element via a single first transmission element, the TRP system being coupled to the second antenna element via a single second transmission element, wherein the TRP system is configured to; transmit to the first antenna element a first input signal at a first frequency, transmit to the second antenna element a second input signal at a second frequency different from the first frequency, receive from the mixer element, via the first and second transmission elements, a first calibration signal based on the first and second input signals, and determine, based on the first calibration signal, a relative phase difference between the first and second transmission elements. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A two-element array antenna system, comprising:
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a first antenna element and a second antenna element; a first oscillator element coupled to the first antenna element; and a transmitting, receiving, and processing (TRP) system coupled to the first and second antenna elements, the TRP system being coupled to the first antenna element via a single first transmission element, the TRP system being coupled to the second antenna element via a single second transmission element, wherein the TRP system is configured to; transmit to the first oscillator element, via the first transmission element, a first activation signal, receive from the first oscillator element, via the first and second transmission elements, a first calibration signal at a first frequency generated in response to the first activation signal, and determine, based on the first calibration signal, a relative phase difference between the first and second transmission elements. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification