Transition between a microstrip circuit and a waveguide including a band stop filter and outside transmission reception unit incorporating the transition
US7148766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2004 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Jan 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/107
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention proposes a transition between a microstrip technology circuit and a waveguide, the waveguide being furnished with a probe linked electrically to the microstrip circuit. The transition comprises at least one first resonant cavity coupled by a first hole placed level with the said plane. The transition furnished with the cavity behaves as a bandstop filter. The transition is placed in an outside unit of a transmission system comprising a transmit circuit embodied in microstrip technology and an antenna of waveguide type. A transmit circuit comprises at least one local oscillator and the resonant cavity is tuned to the frequency of the local oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.