Superconducting microstrip filters using compact resonators with double-spiral inductors and interdigital capacitors

@article{Zhou2003SuperconductingMF,
  title={Superconducting microstrip filters using compact resonators with double-spiral inductors and interdigital capacitors},
  author={Jiafeng Zhou and M. J. Lancaster and Frederick Huang},
  journal={IEEE MTT-S International Microwave Symposium Digest, 2003},
  year={2003},
  volume={3},
  pages={1889-1892 vol.3}
}
Novel resonators composed of double-spiral inductors and interdigital capacitors are developed, which not only are compact in size but also have no harmonics up to three times of the fundamental frequency. The center frequency is insensitive to the thickness of the substrate. A miniature seven-pole narrow-band HTS bandpass microstrip filter has been designed, fabricated and tested for an astronomy observation application, which requires a center frequency at 610 MHz and 0.82% fractional… CONTINUE READING
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