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Keywords:

  • power divider;
  • phase shifter;
  • wireless via;
  • microstrip circuits

Abstract

The article reports the design of an ultrawideband quadrature power divider in uniplanar microstrip technology. The proposed device uses the conventional Wilkinson power divider with one of its output arms equipped with a double wireless via acting as a phase adjusting circuit. The device is manufactured showing a wide bandwidth in terms of return loss, isolation, power division, and a differential phase shift of 90° across the frequency band of 3–8 GHz. Its compact size and good performance makes it suitable for use in wideband-balanced amplifiers. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 54:300–305 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26519