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EP0743699A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Surface mounting type antenna system

Assignee: Murata Manufacturing Co Ltd
•
Filing: 1995-06-27
•
Granted: —
•
Expires: 2015-06-27
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Abstract

Abstract The antenna system (10) is formed by spirally winding a conductor (14) made a copper or copper alloy, with a power supply member (12) provided at one endof the conductor (14), the other end thereof being free and (13), on the edge facesof a rectangular parallelepiped as a dielectric substrate (11) by printing, deposition, pasting or plating. The dielectric substrate (11) is prepared by stacking a plurality of layers of ceramics, resin or a combination of ceramics and resin. On the underside (111) of the dielectric substrate (11) lies a power supply terminal (15) to which the power supply member (12) of the conductor (14) is connected. The power supply terminal (15) is simultaneously used as a fixing terminal for securing mounting type antenna system (10) to, for example, a mounting board. Moreover, the conductor (14) squarely intersecting the axis C of the conductor winding rectangular in transverse cross section having a width of W and a length of 1 .

Inventors

  • 👤 Teruhisa C/O Murata Manufac. Co. Ltd. Tsuru
  • 👤 Haruhumi c/o Murata Manufac. Co. Ltd. Mandai
  • 👤 Koji c/o Murata Manufac. Co. Ltd. Shiroki
  • 👤 Kenji c/o Murata Manufac. Co. Ltd. Asakura

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 15:50
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/36; H01Q1/362; H01Q11/00; H01Q11/02; H01Q11/08

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 43 words
A surface mounting type antenna system, comprising: a dielectric substrate; a conductor which is wound spirally on the surface or in the dielectric substrate; and a power supply terminal provided on the surface of said dielectric substrate for applying voltage to the conductor.
Claim 2
Dependent Claim 40 words
A surface mounting type antenna system as claimed in claim 1, further comprising: a mounting board; and a fixing terminal provided on the surface of said dielectric substrate for securing said dielectric substrate onto the surface of said mounting board.
Claim 3
Dependent Claim 33 words
A surface mounting type antenna system as claimed in claim 1, wherein said conductor squarely intersecting the axis of the conductor winding partly includes at least one linear portion in transverse cross section.
Claim 4
Dependent Claim 33 words
A surface mounting type antenna system as claimed in claim 2, wherein said conductor squarely intersecting the axis of the conductor winding partly includes at least one linear portion in transverse cross section.
Claim 5
Dependent Claim 62 words
A helical antenna comprising: a conductor which is wound spirally; and a power supply member provided at one end of said conductor, the other end thereof being a free end; wherein the sensitivity of the antenna to dominant and cross polarized waves is provided in at least both directions: the direction of and a direction perpendicular to, the axis of conductor winding.
Claim 6
Dependent Claim 30 words
A helical antenna as claimed in claim 5, wherein said conductor squarely intersecting the axis of the conductor winding partly includes at least a linear portion in transverse cross section.
Claim 7
Dependent Claim 21 words
A helical antenna as in claim 5, wherein said conductor is provided on the surface of or in a dielectric substrate.
Claim 8
Dependent Claim 21 words
A helical antenna as in claim 6, wherein said conductor is provided on the surface of or in a dielectric substrate.

References Cited (Backward Citations)

EP0320404A1 Cited
WO1992005602A1 Cited
EP0520564A2 Cited
FR2702091A1 Cited
DE4436157A1 Cited

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