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A polyphase filter based on CMOS inverters

Tillman, Fred LU and Sjöland, Henrik LU (2005) NORCHIP Conference, 2005 In [Host publication title missing] p.12-15
Abstract
A new idea for generation of quadrature signals on chip is presented. The topology is based on a passive RC polyphase filter, where the resistive parts are made active by using inverters. The active filter combines quadrature generation, isolation, and gain without losing quadrature performance compared to a regular RC polyphase filter. The filter technique is demonstrated in a 10GHz front-end application where a broadband VCO drives an active polyphase filter to generate quadrature LO signals. By avoiding a quadrature VCO and tuned buffers, significant reductions in chip area are possible
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
active filter, quadrature generation, 10 GHz, passive RC filter, tuned buffers, quadrature LO signals, voltage controlled oscillator, polyphase filter, CMOS inverters
in
[Host publication title missing]
pages
12 - 15
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
NORCHIP Conference, 2005
external identifiers
  • WOS:000241010100002
  • Scopus:33847225222
ISBN
1-4244-0064-3
DOI
10.1109/NORCHP.2005.1596977
language
English
LU publication?
yes
id
c1f6bd19-695c-4553-bea2-13ad4cd990c3 (old id 616510)
date added to LUP
2007-11-25 17:17:49
date last changed
2016-10-13 04:44:41
@misc{c1f6bd19-695c-4553-bea2-13ad4cd990c3,
  abstract     = {A new idea for generation of quadrature signals on chip is presented. The topology is based on a passive RC polyphase filter, where the resistive parts are made active by using inverters. The active filter combines quadrature generation, isolation, and gain without losing quadrature performance compared to a regular RC polyphase filter. The filter technique is demonstrated in a 10GHz front-end application where a broadband VCO drives an active polyphase filter to generate quadrature LO signals. By avoiding a quadrature VCO and tuned buffers, significant reductions in chip area are possible},
  author       = {Tillman, Fred and Sjöland, Henrik},
  isbn         = {1-4244-0064-3},
  keyword      = {active filter,quadrature generation,10 GHz,passive RC filter,tuned buffers,quadrature LO signals,voltage controlled oscillator,polyphase filter,CMOS inverters},
  language     = {eng},
  pages        = {12--15},
  publisher    = {ARRAY(0xc73a8a0)},
  series       = {[Host publication title missing]},
  title        = {A polyphase filter based on CMOS inverters},
  url          = {http://dx.doi.org/10.1109/NORCHP.2005.1596977},
  year         = {2005},
}