Frequency-spreading coupler
US4496876A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1982 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Sep 23, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J25/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wide band travelling wave amplifier including an input waveguide coaxia disposed about an interaction waveguide. Both waveguides are tapered with the same direction of increasing cross-section. The interaction waveguide is a high-pass filter while the input waveguide is a low pass filter. The input waveguide is positioned relative to the interaction waveguide so that each cutoff plane in the input waveguide corresponding to a given frequency, .omega..sub.c, is displaced in the direction of increasing cross-section from a cutoff plane in the interaction waveguide corresponding to .omega..sub.c where .omega..sub.c is any frequency in the frequency band of the amplifier. A slot, disposed between the cutoff planes corresponding to .omega..sub.c couples the .omega..sub.c frequency component of an input wave from the input waveguide to the interaction waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.