Wave transmission lines and networks – Long line elements and components – Switch
Patent
1998-08-10
2000-01-18
Gensler, Paul
Wave transmission lines and networks
Long line elements and components
Switch
333101, 333105, 335 4, H01P 110
Patent
active
060160926
ABSTRACT:
Methods for the fabrication of miniature electromagnetic microwave switches are disclosed in this invention. In one embodiment, on a dielectric substrate, miniature electromagnetic switches for coplanar waveguide transmission lines are fabricated. In another embodiment, miniature electromagnetic microwave switches are fabricated for microstrip transmission lines. The miniature microwave switches are built on a dielectric substrate and are accompanied by miniature electromagnetic coils on the back of the substrate. The switch is controlled by regulating the dc current applied to the electromagnetic coil. A switch is ON when a dc controlling current is applied to the electromagnetic coil and is OFF when the controlling current is cut off. A reverse dc current may also be applied to the electromagnetic coil to repel the top electrode from the bottom electrode. The use of reverse current will prevent the possible sticking of the two electrodes, thus, reducing the switching time. For the switch described in the second embodiment, the miniature electromagnetic coils are separated from the signal lines by a grounding metal layer fabricated at the back of the substrate. In yet another embodiment, switches with two planar electrodes separated by a gap and a third element, a cantilever, are built on a dielectric substrate. Under the influence of a magnetic force, the cantilever will move downwards so that the two separated electrodes are connected.
REFERENCES:
patent: 5258591 (1993-11-01), Buck
patent: 5578976 (1996-11-01), Yao
patent: 5605614 (1997-02-01), Bornand
patent: 5889452 (1999-03-01), Vuilleumier
Larson et al, Microactuators for GaAs-Based Microwave Integrated Circuits, IEEE Transducers '91 Conference on Solid State Sensors and Actuators, 1991 .
Qiu Cindy Xing
Shih Yi-Chi
Yip Lap Sum
LandOfFree
Miniature electromagnetic microwave switches and switch arrays does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Miniature electromagnetic microwave switches and switch arrays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Miniature electromagnetic microwave switches and switch arrays will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-565695