A GSM/EDGE/WCDMA Adaptive Series-LC Matching Network Using RF-MEMS Switches

  title={A GSM/EDGE/WCDMA Adaptive Series-LC Matching Network Using RF-MEMS Switches},
  author={Andre van Bezooijen and M. A. de Jongh and C. Chanlo and L. Ruijs and F. E. van Straten and Reza Mahmoudi and A. H. M. van Roermund},
  journal={IEEE Journal of Solid-State Circuits},
To preserve link quality of mobile phones, under fluctuating user conditions, an adaptively controlled series-LC matching circuit is presented for multi-band and multi-mode operation. Following a bottom-up approach, we discuss the design of an RF-MEMS unit cell for the construction of a 5-bit switched capacitor array. To reduce dielectric charging of the RF-MEMS devices their average biasing voltage is minimized by applying a bipolar waveform with a small high/low duty-cycle obtained from a… CONTINUE READING
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Transient dynamics of a MEMS variable capacitor driven with a Dickson charge pump

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