Title:
Broadband efficient amplifier system
Document Type and Number:
Japanese Patent JP6073820
Kind Code:
B2
Abstract:
Systems and methods are provided for generating a modulated radio frequency (RF) output signal representing a baseband input signal. A digitizer (12) is configured to sample the baseband input signal and produce an N-bit binary digital signal representing a scaled linear function of the signal amplitude. An RF signal source (22) is configured to produce an RF carrier signal. N amplifier paths (16-18) each include at least one amplifier configured to receive the RF carrier signal as an input and provide a corresponding output RF signal. The amplifiers (108-112) associated with each of the N amplifier paths (16-18) are active only when a corresponding bit of the digital signal assumes a first value. A power combiner assembly (20) is configured to combine the outputs of the N amplifier paths (16-18) to deliver the modulated RF output signal.
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Inventors:
Dormitory Borodulin
George Cabrera
George Cabrera
Application Number:
JP2014003396A
Publication Date:
February 01, 2017
Filing Date:
January 10, 2014
Export Citation:
Assignee:
Imagine Communications Corporation
International Classes:
H03F1/02; H03F1/32; H03F3/68; H03F3/72
Domestic Patent References:
| JP2007258768A | ||||
| JP10084224A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation