Low-profile wideband mode forming network
US5373299A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1993 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | May 21, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A low-profile multioctave frequency band microwave mode forming network is provided which includes a plurality of circuit layers having circuitry for receiving M feed signals which may provide M beams or modes of operation. Each circuit layer has a dielectric board with circuitry formed on top and bottom surfaces thereof and is sandwiched between top and bottom dielectric layers to form a tri-plate stripline circuitry. The circuit layers are dielectrically isolated from one another and further separated by conductive ground planes. The circuitry includes a plurality of couplers, phase shifters and transmissions lines which do not require transmission line cross-overs on any given surface. A plurality of right-angle RF interconnects are included for providing electrical connection to the circuitry. Output ports are provided for coupling said feed network to N elements of an antenna system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.