Frequency-sensitive attenuator
US3958194A · kind A · utility
2Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1975 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Jan 3, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/222
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A miniature waveguide attenuator which may be used in a dominant-mode (TEb.10) waveguide to maintain a low VSWR over a 20% frequency band comprising a short section of waveguide with an E- or an H-plane tee whose width is selected to set the cutoff frequency of the branch line of the tee at the design frequency F.sub.o. The branch line of the tee is terminated in a lossy material followed by a short circuit for absorbing energy propagating down the waveguide at frequencies higher than the design frequency in accordance with a controlled attenuation characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.