Reconfigurable Planar SIW Cavity Resonator and Filter

A new reconfigurable frequency cavity compatible with planar technology has been designed, manufactured and measured. An original tuning solution is proposed, based upon the insertion of vertical capacitive posts integrated within SIW cavities. One extremity of each post is connected to a floating metallic ring, located on the substrate supporting the SIW cavity. The frequency agility is obtained once the metallic ring is connected to the ground plane by short-circuited the corresponding annular slot using surface actuators. Such combination of volumetric cavity and planar activation leads to reconfigurable filters with high Q values and simplified tuning control conditions

[1]  L. Katehi,et al.  A vertically integrated micromachined filter , 2002 .

[2]  D. Pozar.  Microwave Engineering , 1990 .

[3]  Gabriel M. Rebeiz,et al.  Micromachined devices for wireless communications , 1998, Proc. IEEE.

[4]  J. Papapolymerou,et al.  A planar X-band electromagnetic band-gap (EBG) 3-pole filter , 2002, IEEE Microwave and Wireless Components Letters.

[5]  Ke Wu,et al.  Guided-wave and leakage characteristics of substrate integrated waveguide , 2005, IMS 2005.

[6]  W.J. Chappell,et al.  Precision fabrication techniques and analysis on high-Q evanescent-mode resonators and filters of different geometries , 2004, IEEE Transactions on Microwave Theory and Techniques.

[7]  William J. Chappell,et al.  High Q two dimensional defect resonators-measured and simulated , 2000, 2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017).

[8]  Ke Wu,et al.  Multilayered substrate integrated waveguide (MSIW) elliptic filter , 2005, IEEE Microwave and Wireless Components Letters.

[9]  Wei Hong,et al.  Multilayered substrate integrated waveguide (MSIW) elliptic filter , 2005 .

[10]  Wei Hong,et al.  Novel substrate integrated waveguide cavity filter with defected ground structure , 2005 .

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

[12]  J. Papapolymerou,et al.  Simulated and measured results from a Duroid-based planar MBG cavity resonator filter , 2000, IEEE Microwave and Guided Wave Letters.

[13]  J. Papapolymerou,et al.  A high-Q reconfigurable planar EBG cavity resonator , 2001, IEEE Microwave and Wireless Components Letters.