The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2015
Filed:
Oct. 03, 2009
Himanshu Joshi, Houston, TX (US);
Hjalti Hreinn Sigmarsson, West Lafayette, IN (US);
Dimitrios Peroulis, West Lafayette, IN (US);
William J. Chappell, Lafayette, IN (US);
Xiaoguang Liu, West Lafayette, IN (US);
Himanshu Joshi, Houston, TX (US);
Hjalti Hreinn Sigmarsson, West Lafayette, IN (US);
Dimitrios Peroulis, West Lafayette, IN (US);
William J. Chappell, Lafayette, IN (US);
Xiaoguang Liu, West Lafayette, IN (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
A tunable filter having an electronically tunable center frequency and dynamic bandwidth control over a large tuning range. High-Q continuously tunable evanescent-mode cavity resonators and filters using reliable RF MEMS actuators. One embodiment is a 3.4-6.2 GHz (1.8:1 tuning ratio) continuously tunable electrostatic MEMS resonator with quality factor of 460-530, with a volume of 18×30×4 mm including the actuation scheme and biasing lines. A tunable resonators is also disclosed with a 2.8:1 (5.0-1.9 GHz) tuning ratio, and Q of 300-650.