Quasi-optical waveguide filter
US4598262A · kind A · utility
228Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1983 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Jun 8, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/207
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A waveguide filter particularly well suited for use in the millimeter and submillimeter wavelength range of the spectrum. The filter includes a number of uniformly spaced gratings installed in a waveguide section and having grating strip patterns contoured to conform with a selected waveguide mode, such as the circular TE.sub.11 mode. The gratings are angularly oriented in the manner of a free-space plane-wave quasi-optical filter and provide similar desired frequency characteristics, but without the disadvantages of large size and the need for planewave launchers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.