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Measured CMOS Reconfigurable Matching Network and its Switched High Quality Capacitor Building Blocks

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Author

Summary, in English

Switched capacitors are here investigated for use in reconfigurable matching networks, particularly for DVB-H frequencies. A $0.13$ $mu$m CMOS circuit is evaluated through both simulations and measurements. Source grounded NMOS transistors are used to switch high quality metal capacitors located above metal layer 8. The quality factor and tuning range depend on frequency, switch voltage, capacitor size, and transistor width. There is a clear trade-off between quality factor and tuning range, and measurements show quality factors above 50, 100, and 150 at tuning ranges of 3.9, 2.4, and 1.6, respectively. A reconfigurable matching network with the switched capacitors has been realized using external inductors and the measured matching domain for the DVB-H frequency band is shown. The total loss of the network is 1.0 dB, a result of the high quality switched capacitors.

Publishing year

2007

Language

English

Publication/Series

[Host publication title missing]

Document type

Conference paper

Publisher

SSoCC (Swedish System on Chip Conference)

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • DVB-H
  • CMOS
  • matching
  • switched capacitor
  • MEMS

Conference name

Swedish System-on-Chip Conference 2007 (SSoCC’07)

Conference date

2007-05-14 - 2007-05-15

Conference place

Gullmarsstrand, Fiskebäckskil, Sweden

Status

Published