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US 2013/0257559 A1Published application
Integrated bidirectional coupler
AssigneeSTMicroelectronics (Tours) SAS
InventorsFrançois Dupont, Hilal Ezzeddine, Sylvain Charley
Life of this patent
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Abstract
A distributed-line directional coupler including: a first conductive line between first and second ports intended to convey a signal to be transmitted; and a second conductive line, coupled to the first one, between third and fourth ports, the second line being interrupted approximately at its middle, the two intermediary ends being connected to attenuators.
Claims6
A distributed-line directional coupler comprising:
- a first conductive line between first and second ports intended to convey a signal to be transmitted;
- and
- a second conductive line, coupled to the first one, between third and fourth ports,
- wherein the second line is interrupted approximately at its middle, the two intermediary ends being connected to attenuators.
1 more element
A directional coupler comprising:
- a first conductive line between first and second ports intended to convey a signal to be transmitted;
- and
- a second conductive line, coupled to the first conductive line, between third and fourth ports,
- wherein the second line is interrupted approximately at a middle, the two intermediary ends being connected to attenuators, and wherein each attenuator comprises a plurality of resistors connected in a pi-coupled resistor network.
1 more element
A distributed-line directional coupler comprising:
- a first conductive line between first and second ports intended to convey a signal to be transmitted;
- and
- a second conductive line, coupled to the first one, between third and fourth ports,
- wherein the second line is interrupted approximately at its middle, the two intermediary ends being connected to attenuators, and
- wherein the two attenuators have values of at least half the directivity factor of the coupler.
2 more elements
Dependencies are inferred from the claim text.