A Ferroelectric-Capacitor-Based Tunable Matching Network for Quad-Band Cellular Power Amplifiers

  • Ali Tombak
  • Published 2007 in
    IEEE Transactions on Microwave Theory and…
A tunable matching network (TMN) based on ferroelectric capacitors for cellular power-amplifier applications was designed, fabricated, and tested. When the matching network is operated for GSM850/900 frequency bands, the input impedance varied from 3.44-j1.87 to 3.55-j0.02 Omega with a power gain variation of -1.35 to -1.62 dB. When the circuit is operated… CONTINUE READING