Comba Telecom Technology (guangzhou) Limited

Other

Comba Telecom Systems (china) Limited

Comba Telecom Systems (guangzhou) Ltd.

Tianjin Comba Telecom Systems Ltd.

Comba Telecom Technology Limited

Litao Chen

Peitao Liu

Guosheng Su

Binlong Bu

Fengzhang Xue

Bin Gao

Shanqiu Sun

Hongbin Duan

Jianjun You

Yu Wang

Qinyuan Wang

Songdong Fan

Mingchao Li

Gengfei Wu

Guixin Zheng

Yabin Chen

Binbin Fa

Xiaoyang Lin

The present invention relates to the field of communications technology, and in particular, to technology related to impedance matching in communication technology, and in particular, to a dielectric phase shifting unit, dielectric phase shifter and base station antenna. It includes a feeding network and a dielectric plate for impedance matching and for moving along a predetermined path, an impedance matching portion of the dielectric plate being disposed on one end of the dielectric plate adjacent to an input port on the feeding network. The present invention not only reduces the number of impedance matching and network loss; it also reduces the equivalent electrical length of the entire network, effectively saving costs, reducing the complexity of disassembly and assembly of related components, and improves disassembly and assembly efficiency.

Dielectric phase shifting unit, dielectric phase shifter and base station antenna

A phase shifter of cavity type includes an integrally formed cavity, a feeding network disposed inside the cavity, a dielectric element disposed between the feeding network and the cavity, and at least one transmission-line transformation device. The at least one transmission-line transformation device is connected with the cavity by welding for connecting an outer conductor of a transmission cable, and for passing an inner conductor of the transmission cable into the cavity and being connected with the feeding network. Phase shifting is achieved by straight movement of the dielectric element along the longitudinal direction of the cavity. For the phase shifter of cavity type, the cavity and transmission-line transformation device are individually designed, and as a result, difficulty in design and manufacture is decreased. In addition, fasteners such as screws are not used for securing the phase shifter, thus avoiding reliability and inter-modulation problems resulted from failure of screws.

Phase shifter of the cavity type including a feeding network, a slideable dielectric element and a transformation device, which are mounted within the cavity of the phase shifter

A microwave component of cavity type includes an integral cavity and a microwave network circuit disposed in the cavity. The cavity has multiple enclosing walls and a chamber defined by said multiple enclosing walls. The chamber is intended for accommodating the microwave network circuit therein. A wiring slot is defined in at least one of the enclosing walls, and at least one first through hole extended through the chamber is provided on each wiring slot. The microwave component of cavity type features small size, simple structure, and wide application. Furthermore, cost may be reduced, batch production may be achieved, use of fasteners such as screws is avoided, and the passive inter-modulation products caused by fasteners are eliminated, as the microwave component is secured without any screws.

Microwave component of cavity type

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Province, China

Litao Chen