Compact unit cell PCB antenna system with waveguide coupling
US11843178B1 · kind B1 · utility
Inventor
Key dates
| Filing date | May 23, 2023 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | May 23, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/0075
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna assembly of PCB layers and waveguide layers includes a driven PCB layer with an array of unit cells. Each cell includes a central first element (e.g., a receive patch) and four second elements (e.g., transmit patches) evenly spaced around the first element in a square configuration. Distances between adjacent aligned first elements are equal, and less than the first elements' operating frequency. Distances between adjacent aligned second elements are equal, and less than the second elements' operating frequency. First and second combiner layer conductively couple first elements and second elements, respectively, to one or more first or second combiner pads to facilitate interfacing the elements with waveguides. First and second waveguides formed into separate plates communicatively coupled to their corresponding combiner layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.