ANTENNA UNIT WITH PHASE-SHIFTING MODULATOR, AND RELATED ANTENNA, SUBSYSTEM, SYSTEM, AND METHOD
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United States of America Patent
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Issued Date -
Jan 11, 2024
app pub date -
Mar 13, 2023
filing date -
May 3, 2019
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Abstract
In an embodiment, an antenna unit includes a coupler, a phase-shifting modulator, and an antenna element. The coupler has first and second input-output ports, a coupled port, and an isolated port. The phase-shifting modulator includes a transmission medium coupled to the coupled port, a reflector, control nodes, and active devices each having a respective first device port coupled to a respective location of the transmission medium, a respective second device port coupled to the reflector, and a respective control port coupled to a respective one of the control nodes. And the antenna element is coupled to the phase-shifting modulator via the isolated port.
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