The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지

New Harmonic Suppressed Microstirp Ring Bandpass Filters

  • Park, Hyun-Joo (RFIC Research and Education Center & Mission Technology Research Center, Kwangwoon Univ.) ;
  • Kim, Jae-Hyuk (RFIC Research and Education Center & Mission Technology Research Center, Kwangwoon Univ.) ;
  • Park, Ji-Yong (RFIC Research and Education Center & Mission Technology Research Center, Kwangwoon Univ.) ;
  • Lee, Jong-Chu (RFIC Research and Education Center & Mission Technology Research Center, Kwangwoon Univ.) ;
  • Kim, Jong-Heon (RFIC Research and Education Center & Mission Technology Research Center, Kwangwoon Univ.) ;
  • Lee, Byung-Je (RFIC Research and Education Center & Mission Technology Research Center, Kwangwoon Univ.) ;
  • Kim, Nam-Young (RFIC Research and Education Center & Mission Technology Research Center, Kwangwoon Univ.)
  • Published : 2000.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, new bandpass filters that are composed of microstrip ring resonators with the center frequency of 5.775 GHz and the bandwidth of 100 MHz are presented. For the suppression of the unnecessary harmonics, lowpass filters are inserted into the feedlines and ring resonator itself, respectively These bandpass filters show good microwave characteristics with the harmonic suppression ratio of about 39 dB and 35 dB, respectively. Also, the varactor-tuned microstip ring bandpass filter with harmonic suppression is suggested and the tuning bandwidth of more than 450 MHz is obtained.

Keywords

References

  1. APMC Proc. How Dielectric Filter Technologies Respond to Requirements of Future Communication Systems Y. Ishikawa
  2. Microwave Engineering D. M. Pozar
  3. Electron. Lett. v.34 no.22 Harmonic Suppressed Microstrip Multistage Coupled Ring Bandpass Filters J. Marti;A. Griol
  4. IEEE Microwave Theory Tech. v.35 no.12 On the Study of Microstrip Ring and Varactor-Tuned Ring Circuits K. Chang;F. Wang;J. L. Klein
  5. IEEE Microwave Theory Tech. v.45 no.11 Transmission-Line Analysis of a Capacitively Coupled Microstrip Ring Resonator C. C. Yu;K. Chang
  6. Microwave and Optical Tech. Lett. v.20 no.3 Varactor-Tuned Microstrip Ring Resonators with New Enhanced Coupling Structure J. Y. Park;H. J. Park;J. C. Lee
  7. IEEE MTT-S Int. Microwave Symp. Dig. A New Enhanced Coupling Structure of Microstrip Ring Resonator with Two Coupled Lines and a Silt J. Y. Park;J. C. Lee
  8. IEEE MTT-S Int. Microwave Symp. Dig. Harmonic Suppression in Microstrip Dual-Mode Ring Resonator Bandpass Filters U. Karacaoglu;D. S. Hernandez;I. D. Robertson;M. Guglielme
  9. Microwave Solid-State Circuits and Applications K. Chang
  10. Microstrip Ring Circuits and Antennas K. Chang