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Patent Searching and Data


Title:
FILTER CIRCUIT AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/215970
Kind Code:
A1
Abstract:
[Problem] To provide a filter circuit which preferably achieves both excellent frequency elimination characteristics and the suppression of size enlargement due to mounting. [Solution] This filter circuit is provided with: a first signal line disposed to extend in an elongated shape; and a second signal line disposed to be parallel to the first signal line, wherein one side of the second signal line in the lengthwise direction is electrically connected to the first signal line and the other side of the second signal line is opened, and the length of the second signal line in the lengthwise direction is determined according to the frequency of a signal, which is shielded, among signals transmitted through the first signal line.

Inventors:
KITABATA GOH (JP)
Application Number:
JP2019/003940
Publication Date:
November 14, 2019
Filing Date:
February 05, 2019
Export Citation:
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Assignee:
SONY CORP (〒1080075, JP)
International Classes:
H01P1/203; H01P5/08; H01P7/08
Domestic Patent References:
WO2017131727A12017-08-03
Foreign References:
JPH02131602A1990-05-21
JP2017216589A2017-12-07
JP2015115707A2015-06-22
Other References:
HABIBI ET AL.: "Very compact broad band-stop filter using periodic L-shaped stubs based on self complementary structure for X-band application", ELECTRONICS LETTERS, vol. 48, no. 23, November 2012 (2012-11-01), pages 1, 2, XP006039722
PARIMALA ET AL.: "Analysis of Stub Loaded Embedded With Open Loop Resonator for Multiband Band Pass Filter", INTERNATIONAL JOURNAL OF ENGINEERING TRENDS AND TECHNOLOGY, vol. 7, no. 3, January 2014 (2014-01-01), pages 155 - 159, XP055651757
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE et al. (〒1000013, JP)
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