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:
Mar. 13, 2018
Filed:
Jan. 24, 2017
Peregrine Semiconductor Corporation, San Diego, CA (US);
Peter Bacon, Derry, NH (US);
Matt Allison, Oceanside, CA (US);
Ravindranath Shrivastava, San Diego, CA (US);
pSemi Corporation, San Diego, CA (US);
Abstract
A digitally controlled phase shifter and (optional) attenuator circuit that has both a broad range as well as a fine-tuning resolution. Embodiments maintain a full 360° phase range while providing n-bit least-significant bit (LSB) resolution across the entire range of possible phase shift and attenuation states, and compensate for the effect of frequency and/or PVT variations. In embodiments, two or more range partitionings can be defined that can be monotonic over respective sub-ranges while providing full coverage when combined. One such partitioning is a 'coarse+fine' architecture. Embodiments of the coarse+fine architecture provide for greater than 360° of range for phase shifting and more than the total nominal design level for attenuation, and provide for fine ranges for both phase shifting and attenuation that are greater than the LSB of the corresponding coarse ranges for phase shifting and attenuation.