Wireless communication device haing variable gain device and method therefor
First Claim
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1. A wireless communication device comprising:
- an antenna array having a first antenna and a second antenna;
a phase shift element to provide an input signal to a first variable gain device; and
a second variable gain device, wherein an output signal of the first variable gain device is summed with an output signal of the second variable gain device and coupled to the first antenna.
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Abstract
Briefly, in accordance with one embodiment of the invention, a wireless device has an array of antennas. A signal is provided to one of the antenna by two variable gain amplifiers, one of which processes a signal that is shifted in phase compared to the signal processed by the other variable gain amplifier.
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Citations
28 Claims
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1. A wireless communication device comprising:
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an antenna array having a first antenna and a second antenna;
a phase shift element to provide an input signal to a first variable gain device; and
a second variable gain device, wherein an output signal of the first variable gain device is summed with an output signal of the second variable gain device and coupled to the first antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus comprising:
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a first antenna and a second antenna;
a first signal processing path comprising a first variable gain amplifier, wherein the first signal processing path receives an input signal and provides an output signal; and
a second signal processing path comprising a phase shifting element and second variable gain amplifier, wherein the second signal processing path receives an input signal and provides an output signal. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method of providing a signal to a first antenna in an array of antennas, the method comprising:
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providing an input signal to a first signal processing path and a second signal processing path, the first signal processing path comprising a variable gain amplifier, the second signal processing path comprising a variable gain amplifier;
shifting the phase of a signal in the second signal processing path; and
summing an output of the first signal processing path and an output of the second signal processing path. - View Dependent Claims (24, 25)
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26. An article comprising a storage medium having stored thereon instructions, that, when executed by a computing platform, results in:
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providing an input signal to a first signal processing path and a second signal processing path, the first signal processing path comprising a variable gain amplifier, the second signal processing path comprising a variable gain amplifier;
shifting the phase of a signal in the second signal processing path; and
summing an output of the first signal processing path and an output of the second signal processing path. - View Dependent Claims (27, 28)
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Specification