ANTENNA DEVICE AND COMMUNICATION TERMINAL DEVICE
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United States of America Patent
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Issued Date -
May 16, 2024
app pub date -
Jan 22, 2024
filing date -
Sep 3, 2021
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Abstract
An antenna device includes first and second antennas. The first antenna includes a first radiating element connected to a feed circuit to supply a radio-frequency signal, and a first coil connected between the first radiating element and the feed circuit. The second antenna includes a second coil magnetically coupled to the first coil, and a second radiating element connected to the second coil. An impedance of the first antenna is higher than about 50Ω at a resonant frequency of a fundamental of the second antenna.
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