Microstrip coupler
US6794954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2002 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Jul 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/185
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A microstrip coupler is provided which includes an controlled capacitance bridge for improved directivity as compared to prior art controlled capacitance bridges. The novel controlled capacitance bridge provides the functionality of prior art wire or ribbon controlled capacitance bridges and also provides the necessary capacitance to compensate for the different phase velocities of odd and even modes in the transmission lines. Both the dimensions of the controlled capacitance bridge and the dimensions of an input microstrip conductor may be adjusted to provide the appropriate level of capacitance. In some embodiments, the controlled capacitance bridge connects segments of an input microstrip conductor. In other embodiments, the controlled capacitance bridge connects microstrip conductors which are configured to couple an input signal from an input microstrip conductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.