Patent EP0997973A1 successfully refreshed from Google Patents.
EP0997973A1
Expired / Lapsed
EP
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Dielectric antenna including filter, dielectric antenna including duplexer, and radio apparatus using these
Assignee: Murata Manufacturing Co Ltd
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Filing: 1999-10-08
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Granted: —
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Expires: 2019-10-08
Abstract
Abstract The invention provides a dielectric antenna including a filter, comprising: a dielectric substrate (1); an antenna portion, comprising a radiation electrode (2) having one short-circuited end and one open end and provided on or within the dielectric substrate (1); a filter portion comprising; at least one resonance electrode (4a; 4b) provided on or within the dielectric substrate (1), and a external coupling electrode (7) in association with the resonance electrode (4b); and the radiation electrode (2) and the resonance electrode (4a; 4b) being coupled to each other.
Inventors
- 👤 Junichi c/o(A170) Intell.Prop.Dept. Kurita
- 👤 Hideyuki c/o(A170) Intell.Prop.Dept. Kato
- 👤 Yuichi c/o(A170) Intell.Prop.Dept. Kushihi
- 👤 Motoharu c/o(A170) Intell.Prop.Dept. Hiroshima
- 👤 Jinsei c/o(A170) Intell.Prop.Dept. Ishihara
- 👤 Haruo c/o(A170) Intell.Prop.Dept. Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 07:17
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/20; H01Q13/24; H01Q1/00; H01Q1/36; H01Q1/38; H01P; H01P1/00; H01P1/20; H01P1/201; H01P1/203; H01Q13/10; H01Q13/106; H01Q23/00; H01Q9/00; H01Q9/04; H01Q9/0407; H01Q9/0421
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
83 words
A dielectric antenna including a filter, comprising: a dielectric substrate (1); an antenna portion comprising; a radiation electrode (2) having one short-circuited
end and one open end and provided on or within the dielectric substrate
(1); a filter portion comprising; at least one resonance electrode (4a; 4b)
provided on or within the dielectric substrate (1), and a external coupling electrode
(7) in association with the resonance electrode (4b); and the radiation electrode (2) and the resonance electrode (4a) being coupled
to each other.
Claim 2
Dependent Claim
53 words
The dielectric antenna including a filter according to Claim 1, wherein an
electrode (6) electrically isolated from ground and generate a static capacitance
between the resonance electrode (4a) and the radiation electrode (2) is provided;
and the resonance electrode (4a) and the radiation electrode (2) are coupled to
each other by static capacitance.
Claim 3
Dependent Claim
82 words
A dielectric antenna including a filter, comprising: a dielectric substrate (1); a slot antenna-type antenna portion (18) comprising; a ground electrode (8)
opened in a slot shape and provided on a dielectric substrate (1); a filter portion comprising; at least one resonance electrode (4a; 4b)
provided on or within the dielectric substrate (1), and a external coupling electrode
(7) in association with the resonance electrode (4b); and an electrode (6) coupled to the resonance electrode (4a) and coupled to the
slot antenna.
Claim 4
Dependent Claim
123 words
A dielectric antenna including a filter, comprising: a first dielectric substrate (19); an antenna portion (100) comprising: a predetermined shaped electrode (2)
which comprises an external coupling electrode (24) and provided on or within the
first dielectric substrate (19); a second dielectric substrate (20); a filter portion (101) comprising; at least one resonance electrode (4a; 4b)
provided on or within the second dielectric substrate (20), and an external
coupling electrode (7) in association with the resonance electrode (4b); and a substrate (21) on which an electrode (26) connecting the external
coupling electrode (24) of the antenna portion (100) and the external coupling
electrode (7) of the filter portion (101) are disposed and the antenna portion (100)
and the filter portion (101) are mounted.
Claim 5
Dependent Claim
58 words
A dielectric antenna including a duplexer, comprising: a transmission filter and a reception filter, each comprising the filter portion
of one of Claims 1 to 4; and the resonance electrode (34b) of an output stage of the transmission filter
and the resonance electrode (4a) of an input stage of the reception filter being
coupled to an antenna portion.
Claim 6
Dependent Claim
34 words
A radio apparatus comprising the dielectric antenna including a filter
according to one of Claims 1 to 4, or the dielectric antenna including a duplexer
according to Claim 5, as a high-frequency circuit portion.
References Cited (Backward Citations)
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