Comba Telecom Technology (Guangzhou) Limited

Comba Telecom Technology Limited

Mingchao Li

Peitao Liu

Shanqiu Sun

Guosheng Su

Qiang Wang

Yu Wang

Gengfei Wu

Xiaoyang Lin

Jianping Song

Liwen Huang

Weiwei Jiang

The present invention relates to a phase-shifting and feeding device, comprising a metal cavity, a phase-shifting circuit, and a feeding network board. The metal cavity is a U-shaped groove structure and engages with a ground plane to form a shielding cavity, thereby having the effect of the cavity in a conventional phase shifter. Since the ground plane serves as a sidewall of the shielding cavity, one sidewall is omitted from the metal cavity relative to the cavity of a conventional phase shifter, thereby significantly reducing the thickness and weight of the metal cavity while ensuring the functions of the phase-shifting and feeding device. In addition, the metal cavity and the feeding network board are arranged to be jointly grounded, while a signal terminal is electrically connected to a feeding circuit. Therefore, the feeding circuit may feed the phase-shifting circuit without using a co-axial feeder. Therefore, the described phase-shifting and feeding device has a reduced volume and a simplified structure, thereby facilitating the miniaturization of a base station antenna. In addition, further provided by the present invention is a base station antenna.

Base station antenna and phase-shifting and feeding device thereof

Growing community of inventors

Guangzhou, China

Mingchao Li