论文信息 - Microstrip multistage coupled ring bandpass filters using photonic bandgap structures for harmonic suppression

Microstrip multistage coupled ring bandpass filters using photonic bandgap structures for harmonic suppression

Microwave bandpass filters based on microstrip coupled ring resonators including photonic bandgap (PBG) structures to suppress higher harmonics have been investigated. Two topologies based on placing PBG structures into and out of the coupled rings have been considered. A harmonic suppression ratio greater than 20 dB in a flat bandpass filter centred at 2.25 GHz is achieved for both structures.

[1] Amadeu Griol,et al. Microstrip multistage coupled ring active bandpass filters with harmonic suppression , 1999 .

[2] Tatsuo Itoh,et al. Novel 2-D photonic bandgap structure for microstrip lines , 1998 .

[3] Melinda Piket-May,et al. Photonic bandgap structures used as filters in microstrip circuits , 1998 .

[4] K. Chang,et al. Microstrip mode suppression ring resonator , 1994 .

[5] John,et al. Strong localization of photons in certain disordered dielectric superlattices. , 1987, Physical review letters.

[6] E. Yablonovitch,et al. Inhibited spontaneous emission in solid-state physics and electronics. , 1987, Physical review letters.

[7] Amadeu Griol,et al. Harmonic suppressed microstrip multistage coupled ring bandpass filters , 1998 .

[8] Txema Lopetegi,et al. Modeling and Testing of Uniform Fiber Bragg Gratings Using 1-D Photonic Bandgap Structures in Microstrip Technology , 2000 .