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A charge sampling mixer with embedded filter function for wireless applications

Yuan, Jiren LU (2000) ICMMT 2000 In Proceedings of 2nd International Conference on Microwave and Millimeter Wave Technology p.315-318
Abstract
A charge sampling mixer with embedded and programmable filter function is described, which is not based on the conventional sub-sampling but the proposed bandpass charge sampling (BPCS) principle. A BPCS circuit samples a radio signal by integrating the weighted current of the clocked radio signal in n clock cycles. The large sampling capacitor used in the circuit results in low noise and low charge and clock feedthrough. The BPCS circuit is simultaneously a high-Q filter, a homodyne mixer and a baseband signal sampler. The center frequency, the bandwidth and the adjacent selectivity can be set through the clock frequency, the number n and the weighting function. Simulation results of a 4 GHz charge sampling mixer in 0.35 μm CMOS are shown... (More)
A charge sampling mixer with embedded and programmable filter function is described, which is not based on the conventional sub-sampling but the proposed bandpass charge sampling (BPCS) principle. A BPCS circuit samples a radio signal by integrating the weighted current of the clocked radio signal in n clock cycles. The large sampling capacitor used in the circuit results in low noise and low charge and clock feedthrough. The BPCS circuit is simultaneously a high-Q filter, a homodyne mixer and a baseband signal sampler. The center frequency, the bandwidth and the adjacent selectivity can be set through the clock frequency, the number n and the weighting function. Simulation results of a 4 GHz charge sampling mixer in 0.35 μm CMOS are shown in the paper. (Less)
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
in
Proceedings of 2nd International Conference on Microwave and Millimeter Wave Technology
pages
315 - 318
conference name
ICMMT 2000
external identifiers
  • Scopus:33645004393
ISBN
0-7803-5743-4
DOI
10.1109/ICMMT.2000.895684
language
English
LU publication?
yes
id
e84cd731-f928-4a9b-b5e2-e9403466ac37 (old id 1761989)
date added to LUP
2011-01-13 14:35:28
date last changed
2016-10-13 04:54:28
@misc{e84cd731-f928-4a9b-b5e2-e9403466ac37,
  abstract     = {A charge sampling mixer with embedded and programmable filter function is described, which is not based on the conventional sub-sampling but the proposed bandpass charge sampling (BPCS) principle. A BPCS circuit samples a radio signal by integrating the weighted current of the clocked radio signal in n clock cycles. The large sampling capacitor used in the circuit results in low noise and low charge and clock feedthrough. The BPCS circuit is simultaneously a high-Q filter, a homodyne mixer and a baseband signal sampler. The center frequency, the bandwidth and the adjacent selectivity can be set through the clock frequency, the number n and the weighting function. Simulation results of a 4 GHz charge sampling mixer in 0.35 μm CMOS are shown in the paper.},
  author       = {Yuan, Jiren},
  isbn         = {0-7803-5743-4},
  language     = {eng},
  pages        = {315--318},
  series       = {Proceedings of 2nd International Conference on Microwave and Millimeter Wave Technology},
  title        = {A charge sampling mixer with embedded filter function for wireless applications},
  url          = {http://dx.doi.org/10.1109/ICMMT.2000.895684},
  year         = {2000},
}