Wideband compact large step circular waveguide transition apparatus
US6518853B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Sep 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/024
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus for forming a quarter wave step between a waveguide of a radiating element under test and a waveguide associated with test equipment being used to test the radiating element. The apparatus includes a housing including a first bore, a second bore and a third bore, with the second bore forming a quarter wave step between the first and third bores. A pair of circuit boards each including a ring resonator are disposed at the transition areas between the first and second bores and the second and third bores. The ring resonators cancel the reactive component that would otherwise be introduced into the propagating wave as it travels through the quarter wave step portion of the apparatus. The apparatus is relatively short in length and easily implemented in a test environment to test various microwave components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.