Branch line coupler
US4928078A · kind A · utility
9Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1988 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Dec 22, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/227
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A branch line coupler is disclosed. The device is comprised of multiple ports and branch lines, every two such lines being connected in a junction point. Each branch line has a width which is narrow at each end and increases in a curvilinear manner toward the middle. By virtue of the width design, the device performs the same functions as a conventional coupler, but for much higher frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.