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Compact Dual-Mode Bandpass Filter with Wide Stopband Using Capacitance Loaded Square Meander Loop Resonator

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Abstract

A novel dual-mode bandpass filter with wide stopband using capacitance loaded square meander loop resonator is presented. The resonator can exhibit dispersion effect due to loaded capacitance, which can reduce the size of resonator and suppress harmonic. The disturbed degenerate-mode resonances are used to form the passband while two transmission zeroes are generated on each side of the passband so as to obtain high selectivity. The circuit area of bandpass filter is only 0.14λg × 0.14λg, where λg is the guided wavelength at the center frequency. The measured result reaches good agreement with simulated result.

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Acknowledgments

The work for this grant was supported in part by National Natural Science Foundation of China (Grant No: 61271026) and by the Program for New Century Excellent Talents in University (Grant No: NCET-11-0066).

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Authors and Affiliations

  1. EHF Key Laboratory of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, People’s Republic of China

    Qi Duan, Kaijun Song, Maoyu Fan, Yu Zhu & Fulong Chen

Authors
  1. Qi Duan
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  2. Kaijun Song
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  3. Maoyu Fan
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  4. Yu Zhu
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  5. Fulong Chen
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Correspondence to Kaijun Song.

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Duan, Q., Song, K., Fan, M. et al. Compact Dual-Mode Bandpass Filter with Wide Stopband Using Capacitance Loaded Square Meander Loop Resonator. Wireless Pers Commun 90, 1433–1442 (2016). https://doi.org/10.1007/s11277-016-3402-x

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  • DOI: https://doi.org/10.1007/s11277-016-3402-x

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