Title:
不平衡給電広帯域スロットアンテナ
Document Type and Number:
Japanese Patent JP4904197
Kind Code:
B2
Abstract:
A slot antenna apparatus includes a grounding conductor having an outer edge including a first portion facing a radiation direction and a second portion other than the first portion, a one-end-open feed slot formed in the grounding conductor along the radiation direction such that an open end is provided at a center of the first portion, and a feed line including a strip conductor close to the grounding conductor and intersecting with the feed slot at at least a part thereof to feed a radio frequency signal to the feed slot. The slot antenna apparatus further comprises at least one one-end-open parasitic slot having an electrical length equivalent to one-quarter effective wavelength in a certain stop band, the parasitic slot having an open end at the second portion, and being formed in the grounding conductor so as not to intersect with the feed line.
Inventors:
Hiroshi Sugano
Fujishima Takeyasu
Fujishima Takeyasu
Application Number:
JP2007123206A
Publication Date:
March 28, 2012
Filing Date:
May 08, 2007
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01Q13/10; H01Q5/00; H01Q5/10; H01Q5/25; H01Q5/307; H01Q5/35; H01Q5/50; H01Q7/00
Domestic Patent References:
| JP2005027317A | ||||
| JP31000464B1 | ||||
| JP2004056421A | ||||
| JP2003101337A | ||||
| JP62165403A |
Attorney, Agent or Firm:
Mitsuo Tanaka
Samejima Mutsumi
Kawabata Junichi
Samejima Mutsumi
Kawabata Junichi