Patent · US Active

Switchable active balanced-to-unbalanced phase shifter

US10819321B1 · kind B1 · utility

1Cited by

3References

19Claims

0Family size

Assignees

University of South Florida · US
The Charles Stark Draper Laboratory, Inc. · US

Inventors

David Manuel Zaiden · Melbourne, US
Thomas Weller · Mainz, DE
John E. Grandfield · St. Petersburg, US
Gokhan Mumcu · Tampa, US

Key dates

Filing date	Jun 27, 2019
Grant date	Oct 27, 2020
Priority date	—
Expiry date	Jun 27, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2005/00286
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Disclosed is a phase shifter capable of achieving 360° phase shifts. The phase shifter includes an active balanced-to-unbalanced (balun) circuit for splitting an input signal into two signals offset in phase. The phase shifter further includes an active all-pass network electrically coupled to an output of the active balun circuit. The active all-pass network can include an active tunable inductor. A variable-gain amplifier (VGA) is electrically coupled to an output of the active all-pass network.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.