Compact stripline Rotman lens
US6130653A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1998 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | Sep 29, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/0031
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A Rotman lens (12, 13) includes a first insulating layer (26) having a high dielectric constant and a second insulating layer (46) having a low dielectric constant. Metalization provided on the first insulating layer includes a lens portion (28), and metalization provided on the second insulating layer includes a plurality of transmission lines (48) and bootlace lines (52). A plurality of via openings are provided through at least one of the insulating layers, and each contain conductive material (33, 38) which electrically couples the lens portion to a respective one of the transmission lines or bootlace lines. A number of the bootlace lines physically overlap the lens portion, without electrical engagement therewith. A ground plane (63) on a further insulating layer (61) may be provided between the first and second insulating layers, in a manner free of electrical contact with the conductive material in the via openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.