Design of Hybrid AWLR-Based Filters Using Classical Cascade Synthesis Approach

Karahan Y., Yildirim N.

25th International Microwave and Radar Conference, MIKON 2024, Wroclaw, Poland, 30 June - 04 July 2024, pp.63-67, (Full Text) identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.23919/mikon60251.2024.10634002
  • City: Wroclaw
  • Country: Poland
  • Page Numbers: pp.63-67
  • Keywords: acoustic-wave-lumped-element resonator, AW filter, bandpass filter, bandstop filter, Butterworth-Van Dyke model, complementary filters, high-Q filter, linear phase filter, reflectionless filter, surface acoustic wave resonator
  • Middle East Technical University Affiliated: Yes

Abstract

This study presents the design of Acoustic-Wave-Lumped-Element Resonator (AWLR)-based filters using the classical cascade synthesis approach as a simpler and more practical method instead of the coupling matrix (CM)-based synthesis approach. The classical cascade synthesis approach is used to design hybrid bandpass (BP), bandstop (BS), linear phase filters, and BP-BS diplexers using commercially available identical SAW resonators leading to bandwidths wider than allAW filters with higher Q-factors. It is shown that simple circuit transformations enable the quick design of such hybrid filters.