Abstract: An antenna-on-chip, AoC, system includes a substrate base, an artificial magnetic conductor, AMC, system with embedded guiding structures, EGS, the AMC system being located on the substrate base, and an antenna located onto the AMC system, where the EGS are electrically floating within the AMC system.

Abstract: An agitator lid suitable for different paint pot openings includes a paint outlet mechanism for controlling paint pouring, and at least two compression mechanisms compressing a paint pot with the agitator lid, each compression mechanism involving: a through-hole provided on the agitator lid, a compression rod passing through the through-hole, a sealing sleeve sheathed on the outside of the compression rod, an up-turned edge of the sealing sleeve pressing on the agitator lid, the periphery of the compression rod between the up-turned edge of the sealing sleeve and a handle on an upper end of the compression rod being sheathed with a compression spring, a lower end of the compression rod being a presser foot, a face of the presser foot being a fan ring shape, a vertical face being provided on a connecting line between two arc-shaped lines along the fan ring shape.

Abstract: Labor-saving paint mixing cover comprises a paint outlet mechanism used to control outflow of a paint material, two or more pressing mechanisms pressing together a paint container and a cover. Each of the pressing mechanisms comprises: a through hole on the cover; a pressing rod passing through the through hole; a sealing sleeve sleeved over the pressing rod, and comprising a sealing sleeve folded edge pressing on the cover; a compression spring sleeved over the pressing rod between the sealing sleeve folded edge of the sealing sleeve and a handle at the upper end of the pressing rod; and a pressing foot located at the lower end of the pressing rod. The handle at the upper end of the pressing rod is a cam lifting handle comprising the upper end of the pressing rod and a cam hinged thereto. A cam surface of the cam lifting handle is in contact with an upper surface of a cam base. The cam base is a movable sleeve sleeved around the pressing rod. A movable sleeve folded edge is provided on the movable sleeve.

Abstract: Labor-saving paint mixing cover comprises a paint outlet mechanism used to control outflow of a paint material, two or more pressing mechanisms pressing together a paint container and a cover. Each of the pressing mechanisms comprises: a through hole on the cover; a pressing rod passing through the through hole; a sealing sleeve sleeved over the pressing rod, and comprising a sealing sleeve folded edge pressing on the cover; a compression spring sleeved over the pressing rod between the sealing sleeve folded edge of the sealing sleeve and a handle at the upper end of the pressing rod; and a pressing foot located at the lower end of the pressing rod. The handle at the upper end of the pressing rod is a cam lifting handle comprising the upper end of the pressing rod and a cam hinged thereto. A cam surface of the cam lifting handle is in contact with an upper surface of a cam base. The cam base is a movable sleeve sleeved around the pressing rod. A movable sleeve folded edge is provided on the movable sleeve.

Abstract: Disclosed is an agitator lid suitable for different paint pot openings, comprising a paint outlet mechanism for controlling paint pouring, and at least two compression mechanisms compressing a paint pot with the agitator lid, each compression mechanism involving: a through-hole provided on the agitator lid, a compression rod passing through the through-hole, a sealing sleeve sheathed on the outside of the compression rod, an up-turned edge of the sealing sleeve pressing on the agitator lid, the periphery of the compression rod between the up-turned edge of the sealing sleeve and a handle on an upper end of the compression rod being sheathed with a compression spring, a lower end of the compression rod being a presser foot, a face of the presser foot being a fan ring shape, a vertical face being provided on a connecting line between two arc-shaped lines along the fan ring shape, and the vertical face dividing a fan ring face into two step-shaped presser foot faces of different heights.