Title:
ANTENNA COUPLING ELEMENT, ANTENNA DEVICE, AND ELECTRONIC EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2019/017098
Kind Code:
A1
Abstract:
This antenna device (100) is provided with a first radiation element (11), a second radiation element (12), and an antenna coupling element. The antenna coupling element has: a primary coil (L1) that is connected between the first radiation element (11) and a feed circuit (1); and a secondary coil (L2) that is inductively coupled to the primary coil (L1) and connected between the second radiation element (12) and the ground. By providing a capacitor (C10) between the primary coil (L1) and the secondary coil (L2), current flows from the primary coil (L1) to the secondary coil (L2) or to the second radiation element (12) via the capacitor (C10), even at anti-resonant frequencies of the first radiation element (11).
Inventors:
ISHIZUKA KENICHI (JP)
Application Number:
PCT/JP2018/021580
Publication Date:
January 24, 2019
Filing Date:
June 05, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q5/335; H01Q1/24; H01Q19/02; H01Q21/30
Domestic Patent References:
| WO2016052733A1 | 2016-04-07 | |||
| WO2014034587A1 | 2014-03-06 | |||
| WO2015182340A1 | 2015-12-03 |
Foreign References:
| JP2014053808A | 2014-03-20 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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