System and method for high-speed analog beamforming
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United States of America Patent
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Feb 20, 2018
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app pub date -
Dec 23, 2016
filing date -
Mar 19, 2015
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Abstract
In accordance with an embodiment, a Radio Frequency (RF) front end system includes a first chip that includes a frequency multiplier coupled to a first input terminal. The frequency multiplier is configured to form an upscaled reference signal by upscaling in frequency an oscillating reference signal received at the first input terminal. The first chip also includes a Voltage-Controlled Oscillator (VCO) configured to provide a first oscillating VCO signal, and an oscillator switch coupled to the VCO and the frequency multiplier. The oscillator switch is configured to select a Local Oscillator (LO) signal from between the first oscillating VCO signal and the upscaled reference signal. The first chip also includes a first phase shifter coupled to an output of the oscillator switch, and a modulator having an input coupled to an output of the first phase shifter.
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