Hybrid Bandpass-Absorptive-Bandstop Magnetically Coupled Acoustic-Wave-Lumped-Element-Resonator Filters

Wesley N. Allen, Anming Gao, Songbin Gong, Dimitrios Peroulis

Research output: Contribution to journalArticle

Abstract

This letter presents a novel advancement in acoustic-wave-lumped-element-resonator (AWLR) filters, which improves transmission zero isolation by over 40 dB without adding any additional components. By spacing and orienting the AWLR-lumped inductors for intentional magnetic coupling, a hybrid bandpass-absorptive-bandstop filter is generated. The filter is demonstrated in three configurations using aluminum nitride contour-mode resonators and off-the-shelf lumped elements. Measured performance of as low as 3.2-dB insertion loss, bandwidth of 0.87%, and transmission zero notch depth greater than 60 dB is shown.

Original languageEnglish (US)
Pages (from-to)582-584
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume28
Issue number7
DOIs
StatePublished - Jul 2018

Fingerprint

Resonators
resonators
Acoustic waves
filters
acoustics
bandstop filters
Magnetic couplings
Wave filters
Notch filters
Aluminum nitride
aluminum nitrides
inductors
notches
Insertion losses
Bandpass filters
shelves
insertion loss
isolation
spacing
bandwidth

Keywords

  • Acoustic waves
  • bandpass filter
  • bandstop filter
  • couplings
  • resonator filters

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Hybrid Bandpass-Absorptive-Bandstop Magnetically Coupled Acoustic-Wave-Lumped-Element-Resonator Filters. / Allen, Wesley N.; Gao, Anming; Gong, Songbin; Peroulis, Dimitrios.

In: IEEE Microwave and Wireless Components Letters, Vol. 28, No. 7, 07.2018, p. 582-584.

Research output: Contribution to journalArticle

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