Antenna device and electronic equipment

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12218438
APP PUB NO 20210376468A1
SERIAL NO

17399166

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Abstract

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An antenna device includes a radiating element, a coupling circuit, and a non-radiating resonant circuit. The coupling circuit includes first and second coupling elements, the first coupling element being connected between a feeder circuit and the radiating element, the second coupling element being coupled to the first coupling element. An end of the second coupling element is grounded, and another end of the second coupling element is connected to the non-radiating resonant circuit. A frequency characteristic of a return loss of the radiating element when seen from the feeder circuit is adjusted by a resonant frequency characteristic of the non-radiating resonant circuit.

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Patent Owner(s)

  • MURATA MANUFACTURING CO LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishizuka, Kenichi Nagaokakyo, JP 104 888
Mikawa, Kentaro Nagaokakyo, JP 31 102
Nasu, Takafumi Nagaokakyo, JP 18 50

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