Abstract: An example of a drone includes a drone chassis, a plurality of motors attached to the drone chassis and a plurality of propellers coupled to the plurality of motors. The drone further includes a net assembly mounted to the drone chassis. The net assembly extends above the plurality of propellers. The net assembly including a bottom portion and a plurality of upright frame members that are mounted to the bottom portion by a plurality of articulating joints.

Abstract: An example of a drone includes a drone chassis, a plurality of motors attached to the drone chassis and a plurality of propellers coupled to the plurality of motors. The drone also includes a net assembly mounted above the drone chassis. The net assembly includes an enclosure and a hinged portion that extends upwards from the enclosure in an open position and folds down in a closed position.

Abstract: An example of a drone includes a drone chassis extending along a plane, a plurality of motors attached to the drone chassis and a plurality of propellers coupled to the plurality of motors. The drone includes net assembly mounted to the drone chassis. The net assembly includes a net enclosure rotatably mounted such that an outward facing opening of the enclosure is rotatable about an axis of rotation that is parallel to the drone chassis.

Abstract: An example of a drone includes a drone chassis, a plurality of motors attached to the drone chassis and a plurality of propellers coupled to the plurality of motors. The drone further includes a net assembly mounted to the drone chassis. The net assembly extends above the plurality of propellers. The net assembly including a bottom portion and a plurality of upright frame members that are mounted to the bottom portion by a plurality of articulating joints.

Abstract: An example of a drone includes a drone chassis, a plurality of motors attached to the drone chassis and a plurality of propellers coupled to the plurality of motors. The drone also includes a net assembly mounted above the drone chassis. The net assembly includes an enclosure and a hinged portion that extends upwards from the enclosure in an open position and folds down in a closed position.

Abstract: An example of a drone includes a drone chassis extending along a plane, a plurality of motors attached to the drone chassis and a plurality of propellers coupled to the plurality of motors. The drone includes net assembly mounted to the drone chassis. The net assembly includes a net enclosure rotatably mounted such that an outward facing opening of the enclosure is rotatable about an axis of rotation that is parallel to the drone chassis.

Abstract: Methods, systems and apparatus for filter design, analysis and adjustment are provided. Various embodiments may include, for example, methods, systems and apparatus for electric signal filter tuning. Embodiments may also include design techniques for planar electric signal (e.g., RF signals) filter tuning. In at least an embodiment of the present invention a technique for filter tuning is provided which may include parameter extraction, optimization and tuning recipes techniques that may require only a single permanent filter tuning. In at least another embodiment a system and method of filter design, analysis and adjustment according to the present invention includes use of tuning that may be set using a mechanical scribing tool or a laser trimming device. In at least one other embodiment, a filter tuning technique may be provided and include providing trimming tabs on a resonator edge that may be disconnected or trimmed for filter tuning.

Abstract: A dual-mode resonator comprises a dielectric substrate having a region divided into four quadrants, and a ring resonator forming quadrangularly symmetrical configurations within the four quadrants of the region. The symmetrical configurations may be formed from folded sections of the resonator, so that parallel lines with opposite currents that cancel to minimize the far-field radiation of the filter structures. The symmetrical configuration can also be meandered, so that opposite currents in parallel line segments within each meander and the line segments that interconnect the meanders cancel to minimize the far-field radiation of the filter structures. One resonator can be used in a two-pole dual-mode filter structures, or multiple resonators can be used in more complex dual-mode filter structures.

Abstract: A dual-mode resonator comprises a dielectric substrate having a region divided into four quadrants, and a ring resonator forming quadrangularly symmetrical configurations within the four quadrants of the region. The symmetrical configurations may be formed from folded sections of the resonator, so that parallel lines with opposite currents that cancel to minimize the far-field radiation of the filter structures. The symmetrical configuration can also be meandered, so that opposite currents in parallel line segments within each meander and the line segments that interconnect the meanders cancel to minimize the far-field radiation of the filter structures. One resonator can be used in a two-pole dual-mode filter structures, or multiple resonators can be used in more complex dual-mode filter structures.