Conference Paper

Synthesis and design of suspended substrate stripline filters for digital microwave power amplifiers

  • Monica Martinez Mendoza /
  • Andreas Wentzel /
  • Muhammad Sandhu /
  • Alejandro Alvarez-Melcon /
  • Wolfgang Heinrich /
  • Ian Hunter
Conference Proceeding cp
European Microwave Week 2016: "Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016
  • Fecha: 01 January 2016
  • Páginas: 898-901
  • ISBN: 9782874870439
  • Source Type: Conference Proceeding
  • DOI: 10.1109/EuMC.2016.7824489
  • Document Type: Conference Paper
  • Publisher: Institute of Electrical and Electronics Engineers Inc.
© 2016 EuMA. In this paper, a synthesis method for suspended substrate stripline filters for digital microwave power amplifier applications is presented. The synthesis method combines a lumped element and full-wave mixed approach in a very efficient way. In order to achieve high amplifier efficiency the filter must exhibit a high input impedance in the stopband. This has been implemented for the first time by using a capacitively end coupled filter combined with stepped impedance resonators. A third order filter was designed. Simulations show that the final stage drain efficiency of the power amplifier and suppression of out-of-band frequency components can be significantly improved when the new structure is used.

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