Fischer G, Mzyk R (2009)
Publication Type: Conference contribution
Publication year: 2009
Publisher: IEEE
Conference Proceedings Title: IEEE International Microwave Symposium
Event location: Boston, USA
Duplex filters as used in infrastructure equipment for wireless networks require high selectivity and high power handling. This typically is contrary to tunability. The contribution shows a planar filter platform based on coupled Metamaterial Split Ring Resonators in suspended stripline configuration. A macro MEMS varactor device with piezoelectric actuation is introduced for tuning. Its characteristics are large tunability, large power handling and moderate Q factor. The degradation of the resonators Q factor is kept low as a loose coupling of the MEMS is assumed. Results of tunable passband characteristics are presented. The impact at system level measured by EVM and ACPR degradation is neglectable thanks to its mechanical inertia. An SDD (Symbolically Defined Device) model suited for ADS that captures the mechanical dynamics by a second order differential equation is presented that can be used with all simulation engines of ADS (S, HB, transient and envelope).
APA:
Fischer, G., & Mzyk, R. (2009). High-Q Planar Filter Platform Incorporating Macro MEMS Tuning Elements. In IEEE International Microwave Symposium. Boston, USA: IEEE.
MLA:
Fischer, Georg, and Raphael Mzyk. "High-Q Planar Filter Platform Incorporating Macro MEMS Tuning Elements." Proceedings of the IEEE International Microwave Symposium, Boston, USA IEEE, 2009.
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