Patent · US Active

ZigBee receiver exploiting an RF-to-BB current-reuse blixer and hybrid filter topology

US9237055B2 · kind B2 · utility

3Cited by

1References

13Claims

0Family size

Assignee

University of Macau · CN

Inventors

Zhicheng Lin · Fujian, CN
Pui-In Mak · Macau, CN
Rui Paulo da Silva Martins · Macau, CN

Key dates

Filing date	Apr 16, 2014
Grant date	Jan 12, 2016
Priority date	—
Expiry date	Apr 16, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04B2001/1072
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A unified balun low noise amplifier (LNA) and I/Q mixer is provided as a single-chip design, and includes a passive/active gain-boosted balun-LNA-I/Q-mixer (blixer), a filter section and a buffer amplifier. The filter section includes an IF-noise-shaping transistorized current-mode lowpass filter sharing a common power supply with the blixer, which allows the blixer and lowpass filter to draw a single bias current. The filter section also includes a complex-pole load providing image rejection and channel selection.

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