Compact cascaded quadruplet bandpass filter using artificial magnetic resonators

Tae Hak Lee, Jung Woo Baik, Young Sik Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A compact cascaded quadruplet (CQ) bandpass filter (BPF) using artificial magnetic resonators is proposed in this letter.An artificial magnetic resonator, which has a negative effective permeability at the resonant frequency, consists of a shorted spiral structure. The negative-mu characteristics are extracted from the simulation result of the scattering parameters in a fictitious rectangular waveguide. Compared with the open-loop resonators that are usually used to construct conventional CQ-BPFs, the proposed artificial magnetic resonator achieves about an 80% size reduction ratio. The measured insertion and return losses at a center frequency of 2.14 GHz are approximately 1.83 dB and 21 dB, respectively. The group delay is less than 0.81 ns in the W-CDMA passband. The full-wave simulation results are in good agreement with the measurement results.

Original languageEnglish
Pages (from-to)883-886
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume55
Issue number4
DOIs
Publication statusPublished - 2013 Apr 1

Fingerprint

Bandpass filters
bandpass filters
Resonators
resonators
Group delay
Rectangular waveguides
rectangular waveguides
code division multiple access
Scattering parameters
insertion loss
Code division multiple access
resonant frequencies
Natural frequencies
permeability
simulation
scattering

Keywords

  • bandpass filter
  • cascaded quadruplet
  • negative-mu
  • spiral resonator

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Compact cascaded quadruplet bandpass filter using artificial magnetic resonators. / Lee, Tae Hak; Baik, Jung Woo; Kim, Young Sik.

In: Microwave and Optical Technology Letters, Vol. 55, No. 4, 01.04.2013, p. 883-886.

Research output: Contribution to journalArticle

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