EP0366393A3 - Antenna for radio telephone - Google Patents

Antenna for radio telephone Download PDF

Info

Publication number
EP0366393A3
EP0366393A3 EP19890310906 EP89310906A EP0366393A3 EP 0366393 A3 EP0366393 A3 EP 0366393A3 EP 19890310906 EP19890310906 EP 19890310906 EP 89310906 A EP89310906 A EP 89310906A EP 0366393 A3 EP0366393 A3 EP 0366393A3
Authority
EP
European Patent Office
Prior art keywords
antenna
plate
radio telephone
coated
facing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19890310906
Other languages
German (de)
French (fr)
Other versions
EP0366393A2 (en
Inventor
Timo Saarnimo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of EP0366393A2 publication Critical patent/EP0366393A2/en
Publication of EP0366393A3 publication Critical patent/EP0366393A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas

Abstract

The present device concerns a small-size antenna for radio telephone. The antenna comprises two parallel, mu­ tually spaced plates (21,22), the first plate (21) being electrically conductive and the second plate (22) being e.g. a glass fibre circuit board of which one surface is metal-­ coated and on the other surface, facing the first plate (21), are disposed second or higher-order matching circuits (S) implemented with separate components.
EP19890310906 1988-10-26 1989-10-23 Antenna for radio telephone Withdrawn EP0366393A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI884945 1988-10-26
FI884945A FI81927C (en) 1988-10-26 1988-10-26 ANTENN FOER RADIO TELEPHONE.

Publications (2)

Publication Number Publication Date
EP0366393A2 EP0366393A2 (en) 1990-05-02
EP0366393A3 true EP0366393A3 (en) 1991-05-29

Family

ID=8527262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890310906 Withdrawn EP0366393A3 (en) 1988-10-26 1989-10-23 Antenna for radio telephone

Country Status (2)

Country Link
EP (1) EP0366393A3 (en)
FI (1) FI81927C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2705392B2 (en) * 1991-09-04 1998-01-28 日本電気株式会社 Portable radio
US5355142A (en) * 1991-10-15 1994-10-11 Ball Corporation Microstrip antenna structure suitable for use in mobile radio communications and method for making same
DE4302905C1 (en) * 1993-02-02 1994-03-17 Kathrein Werke Kg Directional antenna, pref. symmetrical dipole type - is formed by cutting and/or stamping out sections of reflector wall and bending remaining bridging piece
EP0621653B1 (en) * 1993-04-23 1999-12-29 Murata Manufacturing Co., Ltd. Surface-mountable antenna unit
EP0637094B1 (en) * 1993-07-30 1998-04-08 Matsushita Electric Industrial Co., Ltd. Antenna for mobile communication
GB2281661A (en) * 1993-09-07 1995-03-08 Motorola Inc Patch antenna having integral probe and methods for constuction thereof
US5969680A (en) * 1994-10-11 1999-10-19 Murata Manufacturing Co., Ltd. Antenna device having a radiating portion provided between a wiring substrate and a case
FI974316A (en) * 1997-11-25 1999-05-26 Lk Products Oy The antenna structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003398A1 (en) * 1980-05-13 1981-11-26 K Finken Circularly polarized hemispheric coverage flush antenna
US4320402A (en) * 1980-07-07 1982-03-16 General Dynamics Corp./Electronics Division Multiple ring microstrip antenna
EP0056923A2 (en) * 1981-01-23 1982-08-04 Thomson-Csf Antenna having small dimensions
EP0188087A1 (en) * 1984-12-18 1986-07-23 Texas Instruments Incorporated Microstrip patch antenna system
US4724443A (en) * 1985-10-31 1988-02-09 X-Cyte, Inc. Patch antenna with a strip line feed element
EP0331486A2 (en) * 1988-03-03 1989-09-06 Shaye Communications Limited Aerials

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003398A1 (en) * 1980-05-13 1981-11-26 K Finken Circularly polarized hemispheric coverage flush antenna
US4320402A (en) * 1980-07-07 1982-03-16 General Dynamics Corp./Electronics Division Multiple ring microstrip antenna
EP0056923A2 (en) * 1981-01-23 1982-08-04 Thomson-Csf Antenna having small dimensions
EP0188087A1 (en) * 1984-12-18 1986-07-23 Texas Instruments Incorporated Microstrip patch antenna system
US4724443A (en) * 1985-10-31 1988-02-09 X-Cyte, Inc. Patch antenna with a strip line feed element
EP0331486A2 (en) * 1988-03-03 1989-09-06 Shaye Communications Limited Aerials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
REVIEW OF THE ELECTRICAL COMMUNICATIONS LABORATORIES vol. 35, no. 1, janvier 1987, pages 59-65, Tokyo, JP; T. TAGA et al.: "Antennas for Detachable Mobile Radio Units" *

Also Published As

Publication number Publication date
EP0366393A2 (en) 1990-05-02
FI81927B (en) 1990-08-31
FI81927C (en) 1990-12-10
FI884945A (en) 1990-04-27
FI884945A0 (en) 1988-10-26

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