High-Q continuously tunable zipping varactors with large tuning range

2008 ◽  
Author(s):  
Suan Hui Pu ◽  
A. Laister ◽  
A. Holmes ◽  
E. Yeatman ◽  
R. Miles ◽  
...  
Keyword(s):  
Tuning Range ◽  
High Q ◽  
Large Tuning Range

Design and modeling of a micromachined high-Q tunable capacitor with large tuning range and a vertical planar spiral inductor

2003 ◽  
Vol 50 (3) ◽  
pp. 730-739 ◽  
Author(s):  
Jinghong Chen ◽  
Jun Zou ◽  
Chang Liu ◽  
J.E. Schutt-Aine ◽  
Sung-Mo Kang
Keyword(s):  
Tuning Range ◽  
Spiral Inductor ◽  
Tunable Capacitor ◽  
High Q ◽  
Large Tuning Range

A high Q, large tuning range MEMS capacitor for RF filter systems

2003 ◽  
Vol 103 (1-2) ◽  
pp. 33-41 ◽  
Author(s):  
Robert L. Borwick ◽  
Philip A. Stupar ◽  
Jeffrey DeNatale ◽  
Robert Anderson ◽  
Chialun Tsai ◽  
...  
Keyword(s):  
Tuning Range ◽  
High Q ◽  
Rf Filter ◽  
Large Tuning Range

Tunable MEMS LC resonator with large tuning range

2005 ◽  
Vol 41 (15) ◽  
pp. 855 ◽  
Author(s):  
A.B. Yu ◽  
A.Q. Liu ◽  
Q.X. Zhang
Keyword(s):  
Tuning Range ◽  
Lc Resonator ◽  
Large Tuning Range

Mechanical Brakes for Electrostatic Actuators

2004 ◽  
Author(s):  
John D. Grade ◽  
Kevin Y. Yasumura ◽  
Hal Jerman
Keyword(s):  
Large Deflection ◽  
Tuning Range ◽  
Full Range ◽  
Electrostatic Actuators ◽  
Brake Shoe ◽  
Power Failure ◽  
Rotary Actuator ◽  
Order Of Magnitude ◽  
Large Tuning Range ◽  
Arbitrary Location

New DRIE actuator systems have been developed which use a high-force, linear actuator to wrap a flexible brake band around the rigid brake shoe of a large-deflection, rotary actuator. The brake can hold the rotary actuator at any arbitrary location within its full range of travel. A third actuator may be used to engage a pair of locking pins in order to keep the brake motor extended in the event of a power failure. The 100x increase in rotational stiffness after the brake is applied raises the fundamental resonant frequency by more than an order of magnitude, enabling precision optical adjustments over a large tuning range in the presence of external shock and vibration. Consistent braking accuracies of 1 mdeg, or 0.025% of the full-scale deflection, have been demonstrated across the entire rotational range

W-band MMIC VCO with a large tuning range using a pseudomorphic HFET

2002 ◽  
Author(s):  
A. Bangert ◽  
M. Schlechtweg ◽  
M. Lang ◽  
W. Haydl ◽  
W. Bronner ◽  
...  
Keyword(s):  
Tuning Range ◽  
W Band ◽  
Large Tuning Range
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