The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 2012
Filed:
Jan. 14, 2010
Joel Irwin Goodman, Chelmsford, MA (US);
Helen Haeran Kim, Sudbury, MA (US);
Benjamin Andrew Miller, Cambridge, MA (US);
James Edwin Vian, Westford, MA (US);
Joel Irwin Goodman, Chelmsford, MA (US);
Helen Haeran Kim, Sudbury, MA (US);
Benjamin Andrew Miller, Cambridge, MA (US);
James Edwin Vian, Westford, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
Described is a space-time digital power amplifier that can be used to generate an arbitrary waveform for a carrier signal. The space-time digital power amplifier employs temporal modulation of transmit signals generated by an array of transmitter modules. The RF signals transmitted from the array are spatially combined through free space propagation to generate the desired waveform. Advantageously, no digital-to-analog conversion is required and upconversion is unnecessary. The digital power amplifiers for the transmitter modules can be combined in a single chip package. The space-time digital power amplifier enables high power efficiency to be realized using pulse-shaped waveforms thus eliminating any need for the power amplifiers to operate over a wider bandwidth with a spectrally unconfined waveform.