Filters having a movable radio frequency transmission line
AssigneeCommScope Italy S.r.l.
InventorsRoman Tkadlec, Marco Riva
Life of this patent
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Abstract
Filter devices that include a movable radio frequency (RF) transmission line are provided. A filter device that includes a movable RF transmission line also includes a plurality of resonators. The movable RF transmission line is configured to move between a first position and a second position relative to the resonators. Electromagnetic coupling between the movable RF transmission line and the resonators is reduced at the second position relative to the first position. Related methods of operating filter devices are also provided.
Claims22
A filter device comprising:
- a housing;
- a plurality of resonators that are inside the housing;
- a radio frequency (RF) signal input and an RF signal output;
- a movable RF transmission line that is coupled between the RF signal input and the RF signal output;
- and
- an actuator that is configured to move the movable RF transmission line between a first position that is inside the housing and a second position that is inside the housing,
- wherein the resonators are electromagnetically coupled to the movable RF transmission line when the movable RF transmission line is at the first position and are electromagnetically decoupled from the movable RF transmission line when the movable RF transmission line is at the second position.
A filter device comprising:
- a plurality of resonators;
- first and second radio frequency (RF) ports;
- a movable RF transmission line that is coupled between the first RF port and the second RF port;
- and
- an actuator that is configured to move the movable RF transmission line between a first position at which the movable RF transmission line is electromagnetically coupled to the resonators and a second position at which the movable RF transmission line is electromagnetically decoupled from the resonators.
A filter device comprising:
- a plurality of resonators;
- and
- a movable radio frequency (RF) transmission line that is configured to move between a first position and a second position relative to the resonators, wherein electromagnetic coupling between the movable RF transmission line and the resonators is reduced at the second position relative to the first position.
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Dependencies are inferred from the claim text.