Multi-element antenna beam forming configurations for millimeter wave systems
First Claim
1. An apparatus, comprising a transmitter configured to:
- modulate first and second radio frequency (RF) signals with respective first and second baseband signals;
split each of the first and second modulated RF signals into multiple components;
phase shift the components of the first modulated RF signal relative to one another;
phase shift the components of the second modulated RF signal relative to one another; and
output the phase shifted components of the first and second modulated RF signals to elements of an antenna to radiate the first modulated RF signal from the elements of the antenna in a first pattern and to radiate the second modulated RF signal from the elements of the antenna in a second pattern.
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Accused Products
Abstract
Multiple transmit antenna beam formers include/share a same set of power amplifiers and antenna elements to form multiple concurrent transmit antenna beams. Multiple receive antenna beam formers include/share a same set of antenna elements and low noise amplifiers to form multiple concurrent receive antenna beams. A transceiver includes the multiple transmit antenna beam formers and the multiple receive antenna beam formers, where the multiple transmit and receive beam formers include/share the same set of antenna elements. The transmit antenna beam formers and the receive antenna beam formers are configured to transmit, receive, and operate in the millimeter wave frequency band.
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Citations
17 Claims
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1. An apparatus, comprising a transmitter configured to:
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modulate first and second radio frequency (RF) signals with respective first and second baseband signals; split each of the first and second modulated RF signals into multiple components; phase shift the components of the first modulated RF signal relative to one another; phase shift the components of the second modulated RF signal relative to one another; and output the phase shifted components of the first and second modulated RF signals to elements of an antenna to radiate the first modulated RF signal from the elements of the antenna in a first pattern and to radiate the second modulated RF signal from the elements of the antenna in a second pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus, comprising a receiver that includes:
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multiple signal splitters, each to receive an output of a respective one of multiple elements of an antenna; a first receive path to receive a first output of each of the signal splitters, phase shift the first outputs relative to one another, combine the phase shifted first outputs to provide a first RF receive signal, and demodulate a first baseband receive signal from the first RF receive signal; and a second receive path to receive a second output of each of the signal splitters, phase shift the second outputs relative to one another, combine the phase shifted second outputs to provide a second RF receive signal, and demodulate a second baseband receive signal from the second RF receive signal. - View Dependent Claims (10)
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11. A method, comprising:
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modulating first and second radio frequency (RF) signals with respective first and second baseband signals; splitting each of the first and second modulated RF signals into multiple components; phase shifting the components of the first modulated RF signal relative to one another; phase shifting the components of the second modulated RF signal relative to one another; and outputting the phase shifted components of the first and second modulated RF signals a multi element antenna to radiate the first modulated RF signal from the elements of the antenna in a first pattern and to radiate the second modulated RF signal from the elements of the antenna in a second pattern. - View Dependent Claims (12, 13, 14, 15)
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16. A method of concurrently recovering multiple baseband signals from radio frequency (RF) energy received at a phased array antenna, comprising:
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splitting RF energy received by each of multiple radiation elements of the antenna into first and second portions of RF energy, in respective power splitters; phase shifting the first portions of RF energy relative to one another based on a first beam pattern, in a first beam former; phase shifting the second portions of RF energy relative to one another based on a second beam pattern, in a second beam former, concurrently with the phase shifting the first portions of RF energy; combining the phase shifted first portions of RF energy to provide a first RF signal, in the first beam former; combining the phase shifted second portions of RF energy to provide a second RF signal, in the second phased array beam former, concurrently with the combining the phase shifted first portions of RF energy; demodulating the first and second RF signals in a demodulator to provide respective first and second baseband signals; and providing the first and second baseband signals to a baseband processor. - View Dependent Claims (17)
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Specification