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Ultra-compact UHF Band-pass Filter Designed by Archimedes Spiral Capacitor and Shorted-loaded Stubs

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Published/Copyright: December 19, 2014
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Frequenz
From the journal Frequenz Volume 69 Issue 1-2

Abstract

UHF microstrip band-pass filters (BPFs) that much smaller than the referred BPFs are proposed in this communication. For the designing purpose of compactness, archimedes spiral capacitor and ground-loaded stubs are utilized to enhance capacitances and inductance of a filter. Two compact BPFs denoted as BPF 1 and BPF 2 are designed by applying these techniques. The size of BPF 1 and BPF 2 are 0.062 λg × 0.056 λg and 0.047 λg × 0.043 λg, respectively, where λg are guided wavelengths of the centre frequencies of the corresponding filters. The proposed filters were constructed and measured, and the measured results are in good agreement with the simulated ones.

Keywords: ultra-compact; UHF; band-pass filter; Archimedes spiral; shorted-loaded stubs
PACS: 41.; 85.
Received: 2014-3-31
Published Online: 2014-12-19
Published in Print: 2015-1-29

©2015 by Walter de Gruyter Berlin/Munich/Boston

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  1. Frontmatter
  2. Editorial
  3. GeMiC 2014
  4. Research Articles
  5. Large-Signal Investigation of Cold and Hot Matched Coupled-Cavity Traveling-Wave Tubes
  6. Second Harmonic Suppression in S-Band Traveling Wave Tube Tapers
  7. High Dielectric Low Loss Transparent Glass Material Based Dielectric Resonator Antenna with Wide Bandwidth Operation
  8. A Flexible Surface Description for Arbitrarily Shaped Dielectric Lens Antennas
  9. Tunable Phase Shifter Based on Inkjet-Printed Ferroelectric MIM Varactors
  10. Modeling Nonlinear White Noise in GaN HEMT Devices
  11. Radar based Ground Level Reconstruction Utilizing a Hypocycloid Antenna Positioning System
  12. Novel Spurious Suppression Approach for SIR Dual-band Bandpass Filter Design
  13. Ultra-compact UHF Band-pass Filter Designed by Archimedes Spiral Capacitor and Shorted-loaded Stubs
  14. An Evaluation of the Permittivity of Two Different Rock Types Using Microwave Resonator and Waveguide Cutoff Principles
https://doi.org/10.1515/freq-2014-0048
Keywords for this article
ultra-compact; UHF; band-pass filter; Archimedes spiral; shorted-loaded stubs

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. GeMiC 2014
  4. Research Articles
  5. Large-Signal Investigation of Cold and Hot Matched Coupled-Cavity Traveling-Wave Tubes
  6. Second Harmonic Suppression in S-Band Traveling Wave Tube Tapers
  7. High Dielectric Low Loss Transparent Glass Material Based Dielectric Resonator Antenna with Wide Bandwidth Operation
  8. A Flexible Surface Description for Arbitrarily Shaped Dielectric Lens Antennas
  9. Tunable Phase Shifter Based on Inkjet-Printed Ferroelectric MIM Varactors
  10. Modeling Nonlinear White Noise in GaN HEMT Devices
  11. Radar based Ground Level Reconstruction Utilizing a Hypocycloid Antenna Positioning System
  12. Novel Spurious Suppression Approach for SIR Dual-band Bandpass Filter Design
  13. Ultra-compact UHF Band-pass Filter Designed by Archimedes Spiral Capacitor and Shorted-loaded Stubs
  14. An Evaluation of the Permittivity of Two Different Rock Types Using Microwave Resonator and Waveguide Cutoff Principles
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