Helical circular wave guide having low loss around curves and over a wide frequency band
US4225833A · kind A · utility
2Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 6, 1978 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Jun 6, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P3/13
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A helical circular wave guide which reduces loss around curves. It includes contiguous turns of copper wire coated with a thermoplastic material, said helical turns being surrounded by a first tube made of aluminium in contact with the helix and by a second tube made of steel held centered in relation to said first tube by supports made of plastic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.