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US 9,806,786 B2Granted
Communication device and antenna device with first and second antennas having power supply sections separated by nλ/4 electric path length
AssigneeSony Corporation
InventorTakayuki Hirabayashi
Life of this patent
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Abstract
There is provided an antenna device including a first antenna including a first power supply section, a first short-circuited section connected to a bottom board, and a first open-circuited section, and a second antenna including a second power supply section separated from the first power supply section by an electric path length of about nλ/4, a second short-circuited section connected to the bottom board, and a second open-circuited section.
Claims9
An antenna device, comprising:
- a first antenna that comprises:
- a first power supply section,
- a first short-circuited section connected to a bottom board, and
- a first open-circuited section;
- and
- a second antenna that comprises:
- a second power supply section separated from the first power supply section by an electric path length in a range of nλ/4×0.75 to nλ/4×1.25,
- a second short-circuited section connected to the bottom board, and
- a second open-circuited section,
- wherein n is a positive integer,
- wherein each of the first short-circuited section and the second short-circuited section is connected to the bottom board via a circuit section,
- wherein the circuit section comprises a spiral pattern circuit in parallel with a meander pattern circuit.
9 more elements
A communication device, comprising:
- an antenna device that comprises:
- a first antenna that comprises:
- a first power supply section,
- a first short-circuited section connected to a bottom board, and
- a first open-circuited section;
- and
- a second antenna that comprises:
- a second power supply section separated from the first power supply section by an electric path length in a range of nλ/4×0.75 to nλ/4×1.25,
- a second short-circuited section connected to the bottom board, and
- a second open-circuited section,
- wherein n is a positive integer,
- wherein each of the first short-circuited section and the second short-circuited section is connected to the bottom board via a circuit section,
- wherein the circuit section comprises a spiral pattern circuit in parallel with a meander pattern circuit;
- and
- a signal processing section configured to process a communication signal transmitted or received via the antenna device.
12 more elements
Dependencies are inferred from the claim text.