Grating lobe cancellation
US11791570B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 2022 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Jul 20, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for radiating a co-located antenna including radiating the co-located antenna using a dual mode, where the co-located antenna has an inter-element spacing of about 1λ, and the dual mode includes a TM11 mode and a TM21 mode. The TM11 mode is radiated to generate a TM11 far field pattern, where the TM11 mode has a broadside pattern characterized with a beam peak at broadside and the TM11 mode produces grating lobes in addition to the beam peak at broadside. The TM21 mode is radiated to generate a TM21 far field pattern orthogonal to the TM11 far field pattern, thereby causing the TM21 mode to produce a null at broadside to suppress the grating lobes produced by the TM11 mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.