Skip to main content

An Analog Correlator for Ultra-Wideband Receivers

Abstract

We present a new analog circuit exhibiting high bandwidth and low distortion, specially designed for signal correlation in an ultra-wideband receiver front end. The ultra-wideband short impulse signals are correlated with a local pulse template by the correlator. A comparator then samples the output for signal detection. A typical Gilbert mixer core is adopted for multiplication of broadband signals up to . As a result of synchronization of the received signal and the local template, the output voltage level after integration and sampling can reach up to , which is sufficient for detection by the comparator. The circuit dissipates about from double voltage supplies of and using SiGe BiCMOS technology. Simulation results are presented to show the feasibility of this circuit design for use in ultra-wideband receivers.

Author information

Affiliations

Authors

Corresponding author

Correspondence to Chunjiang Tu.

Rights and permissions

Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Reprints and Permissions

About this article

Cite this article

Tu, C., Liu, B. & Chen, H. An Analog Correlator for Ultra-Wideband Receivers. EURASIP J. Adv. Signal Process. 2005, 546896 (2005). https://doi.org/10.1155/ASP.2005.455

Download citation

  • Received:

  • Revised:

  • Published:

  • DOI: https://doi.org/10.1155/ASP.2005.455

Keywords and phrases

  • analog correlator
  • Gilbert cell
  • ultra-wideband receiver