Other

Comba Telecom Technology (guangzhou) Limited

Comba Telecom System (china) Ltd

Anhui Mobile Communication Co. Ltd

Liwen Huang

Peitao Liu

Binlong Bu

Shanqiu Sun

Shan Qiu Sun

Weiwei Jiang

Qinyuan Wang

Fei Xiao

Yingchun Zhang

Qing Tang

An antenna and radiation unit thereof, and balun structure of radiation unit are disclosed. The radiation unit has two dipoles belonging to a same polarization and two feeding components respectively feeding the two dipoles. One end of each of the two feeding components is electrically connected to its corresponding dipole, and the other end of each of the two feeding components is combined through a same physical combining port inherent in the radiation unit. By arranging a combining port inherent to the radiation unit and connecting it to a respective end of two feeding components connected to two dipoles of the same polarization, the signals of the two dipoles are divided/combined through the combining port.

Antenna and radiation unit thereof, balun structure of radiation unit and manufacturing method

The present application provides a child resistant zipper bag. The zipper of the protective zipper bag is designed with a special structure and can only be opened in a special way, so that children can be effectively prevented from opening the bag casually, thereby playing a role of protecting children. Moreover, the first connection bar is assembled with the second connection bar through the second meshing teeth being meshed with the first meshing teeth. Therefore, the movement between a first zipper belt and a second zipper belt is limited, and the opening of the bag body due to sliding between the first zipper belt and the second zipper belt is avoided.

Child resistant zipper bag

A bi-polarized broadband annular radiation unit, for being installed on a metal reflective plate thus constituting a communication antenna and defining an annular construction by two pairs of orthogonally polarized dipoles, includes two pairs of orthogonally polarized dipoles, each dipole comprising two symmetrical unit arms of a single line sheet shape, one end of a unit arm being facing to a corresponding end of the other unit arm, and a distal end of each unit arm of at least one pair of dipoles is provided with a loading line; and a plurality of balun arms feeding power to and supporting respective dipoles, each balun arm including two parallel balun lines, and the top ends of the two balun lines being connected with corresponding ends of the two unit arms of a corresponding dipole. Each unit arm and the balun line and/or loading line connected to the same unit arm are made by sheet metal stamping forming process or casting process.

Bi-polarized broadband annular radiation unit and array antenna

Growing community of inventors

Guangdong, China

Liwen Huang