Microwave phase-shifter and electronic scanning antenna with such phase-shifters
The present invention pertains to a phase-shifter. It can be applied especially to an electronic scanning antenna. The invention can also be applied in particular to low-cost electronic scanning antennas used in radars, for example for the management of air traffic in airports, as well as in telecom...
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| Main Authors | , , |
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| Format | Patent |
| Language | English |
| Published |
06.08.2002
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| Online Access | Get full text |
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| Summary: | The present invention pertains to a phase-shifter. It can be applied especially to an electronic scanning antenna. The invention can also be applied in particular to low-cost electronic scanning antennas used in radars, for example for the management of air traffic in airports, as well as in telecommunications, for example civilian telecommunications.
A microwave phase-shifter including a coupler in a waveguide form, at least one pair of phase-shifter cells, and a conductive strip positioned between each phase shifter cell and configured with a conductive plane to form a guided space where a wave cannot propagate. An incident wave entering a first input of the coupler is subdivided into two waves. Each of the waves are reflected on an elementary cell with identical phases to the incident wave and are recombined into a resultant phase-shifted wave prior to exiting the coupler by an output juxtaposed with the first input. |
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