Patent EP0274592A1 successfully refreshed from Google Patents.
EP0274592A1
Expired / Lapsed
EP
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Flat antenna apparatus
Assignee: Kokusai Denki Electric Inc
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Filing: 1987-11-05
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Granted: —
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Expires: 2007-11-05
Abstract
Abstract An antenna apparatus in which flexible antennas made of a conductive material are formed on a flexible insulating sheet. An insulating film (11) made of a synthetic resin material is used as the insulating sheet, and the antennas are formed by adhering a metal foil (12, 13) on the insulating sheet or by depositing a metal film on the insulating sheet.
Inventors
- 👤 Kazuhiko Tamura
- 👤 Atsushi Sato
- 👤 Yutaka Aizawa
- 👤 Yoshiyki Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 03:49
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/085; H01Q1/44; H01Q9/00; H01Q9/04; H01Q9/06; H01Q9/065
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
54 words
An antenna apparatus in which antennas are formed on a flat insulating member, characterized in that said insulating member (11) is constituted by a thin flexible insulating sheet which can be freely bent or folded and said antennas (12a, 12b) are made of a thin flexible conductive material and formed on said insulating sheet.
Claim 2
Dependent Claim
54 words
An antenna apparatus in which antennas are formed on a flat insulating member, characterized in that said insulating member (11) is constituted by a thin flexible insulating sheet which can be freely bent or folded and said antennas (12a, 12b) are made of a thin flexible conductive material and formed on said insulating sheet.
Claim 3
Dependent Claim
24 words
An apparatus according to claim 1, characterized in that said insulating sheet (11) is a thin insulating film made of a synthetic resin material.
Claim 4
Dependent Claim
15 words
An apparatus according to claim 1, characterized in that said insulating sheet (11) is paper.
Claim 5
Dependent Claim
15 words
An apparatus according to claim 1, characterized in that said insulating sheet (11) is cloth.
Claim 6
Dependent Claim
16 words
An apparatus according to claim 1, characterized in that said insulating sheet (11) is non-woven fabric.
Claim 7
Dependent Claim
19 words
An apparatus according to claim 1, characterized in that said antennas (12a, 12b) are made of a metal foil.
Claim 8
Dependent Claim
24 words
An apparatus according to claim 1, characterized in that said antennas (12a, 12b) are made of a conductive film coated on said insulating sheet.
Claim 9
Dependent Claim
22 words
An apparatus according to claim 4, characterized in that said antennas (12a, 12b) are constituted by conductive strings woven in said cloth.
Claim 10
Dependent Claim
21 words
An apparatus according to claim 7, characterized in that said conductive film is a metal film deposited on said insulating sheet.
Claim 11
Dependent Claim
31 words
An apparatus according to claim 1, characterized in that said antennas (12a, 12b) are dipole antennas and at least part thereof is bent to form a wave-like bent portion (13a, 13b).
Claim 12
Dependent Claim
26 words
An apparatus according to claim 10, characterized in that a linear short-circuit portion (203) is formed at least at part of said wave-like bent portion (202).
Claim 13
Dependent Claim
33 words
An apparatus according to claim 1, characterized in that a terminal box (213) is detachably provided on an edge portion of said insulating sheet (211) to electrically connect said antennas with a feeder.
Claim 14
Dependent Claim
17 words
An apparatus according to claim 1, characterized in that printing is performed on said insulating sheet (111).
Claim 15
Dependent Claim
19 words
An apparatus according to claim 1, characterized in that said insulating sheet is incorporated in furniture or another product.
Claim 16
Dependent Claim
19 words
An apparatus according to claim 1, characterized in that said insulating sheet is formed to have a three-dimensional shape.
References Cited (Backward Citations)
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US3780373A
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US3815141A
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US4546357A
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