Novel Folded Waveguide Resonator Filter Using Slot Technique

This letter presents a primary investigation into developing a compact and low-loss bandpass filter using novel folded-waveguide resonators with a footprint reduction. A slot coupling between adjacent resonators is introduced, which is characterized using full-wave electromagnetic simulations and verified experimentally. Two two-pole folded-waveguide resonator filters of this type have been designed, fabricated and tested. Simulation and measurement results are presented to validate the design and to show the advantages of this type of filter.

[1]  Toward a novel planar circuit compatible silicon micromachined waveguide , 1999, IEEE 8th Topical Meeting on Electrical Performance of Electronic Packaging (Cat. No.99TH8412).

[2]  G. Eleftheriades,et al.  High-Q bulk micromachined silicon cavity resonator at Ka-band , 2001 .

[3]  Rashaunda Henderson,et al.  A reduced-size silicon micromachined high-Q resonator at 5.7 GHz , 2002 .

[4]  J. Papapolymerou,et al.  A micromachined high-Q X-band resonator , 1997 .

[5]  Jia-Sheng Hong,et al.  Compact folded-waveguide resonators , 2004, 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535).

[6]  Jia-Sheng Hong,et al.  Compact folded-waveguide resonators and filters , 2006 .

[7]  J.-F. Luy,et al.  3D silicon micromachined RF resonators , 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

[8]  Jiasheng Hong,et al.  Folded-Waveguide Resonator Filter With Asymmetric Frequency Response , 2006, 2006 European Microwave Conference.