Patent · US Active

System and method for reducing or eliminating temperature dependence of a coherent receiver in a wireless communication device

US8489044B2 · kind B2 · utility

5Cited by

16References

17Claims

0Family size

Assignee

FUJITSU SEMICONDUCTOR LIMITED · JP

Inventors

Omid Oliaei · Sunnyvale, US
Stephen Rector · Tempe, US
Cristiano Benevento · Chandler, US

Key dates

Filing date	Aug 11, 2011
Grant date	Jul 16, 2013
Priority date	—
Expiry date	Aug 18, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04B1/0475
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

In accordance with some embodiments of the present disclosure, a method may include generating a first current equal to a bandgap voltage divided by a resistance selected to approximately match a process resistance integral to a receiver. The method may further include generating a second current equal to temperature-dependent current multiplied by a predetermined scaling factor. The method may also include subtracting the second current from the first current to generate a bias current. The method may additionally include providing the bias current to the receiver.

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