Base station antenna and phase-shifting and feeding device thereof
US12003037B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2019 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Nov 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/246
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.