EP0736924B1 - Tragbarer Empfänger mit einer Antenne - Google Patents

Tragbarer Empfänger mit einer Antenne Download PDF

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Publication number
EP0736924B1
EP0736924B1 EP96200856A EP96200856A EP0736924B1 EP 0736924 B1 EP0736924 B1 EP 0736924B1 EP 96200856 A EP96200856 A EP 96200856A EP 96200856 A EP96200856 A EP 96200856A EP 0736924 B1 EP0736924 B1 EP 0736924B1
Authority
EP
European Patent Office
Prior art keywords
plates
main
portable receiver
antenna
parallel
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.)
Expired - Lifetime
Application number
EP96200856A
Other languages
English (en)
French (fr)
Other versions
EP0736924A1 (de
Inventor
Pierre Chanteau
Bram Paulus Van Sambeek
Steven Thomas Slot
Daniele Santilli
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of EP0736924A1 publication Critical patent/EP0736924A1/de
Application granted granted Critical
Publication of EP0736924B1 publication Critical patent/EP0736924B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • 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

Definitions

  • Such a receiver is for example a radio receiver or a flat screen TV receiver, or a receiver flat screen teletext, for example with a flat screen liquid crystals.
  • WO 90/15452 describes a radar antenna, intended for receive a determined frequency, and comprising two parts which are each made up of a triangular area and a rectangular area, and which are bent at right angles along the axis which delimits these two zones in order to limit the size of the antenna.
  • the antenna described in this document is a half-wave antenna, that is to say that its total length is the order of magnitude of half a wavelength.
  • the rectangular areas of the antenna are shorter than its triangular areas.
  • An object of the invention is to obtain a reception diagram perfectly omnidirectional over the entire UHF frequency band, with a high gain.
  • the parallel plates practically triangular have an asymmetrical design compared to a horizontal axis.
  • a plate parallel is connected to a main plate via a plate of connection making an angle at a time with the plate main and with the connection plate.
  • the main plates and the housing have advantageously, in a direction parallel to the line plate attachment, practically the same size Max.
  • the plates are made of plastic, and are covered with a sheet flexible metallic.
  • Such a flexible metallized sheet is capable ensure continuity at the joints, by folding when the joint is played, or even can constitute by itself a hinge.
  • a portable receiver according to the invention is advantageously an image receiver provided with an image screen.
  • the screen picture is placed between the tips of the parallel plates practically triangular.
  • Figures 1 and 2 schematically represent a receiver according to the invention, seen respectively from the front and from above.
  • Figure 3 shows a top view of a variant.
  • the portable image receiver 1 illustrated on the figures includes a housing 8 in which is placed a electronic circuit 11-16.
  • This case 8 which could also well have any shape, here is practically flat and rectangular. It is practically symmetrical with respect to to a plane of symmetry 19 perpendicular to its large faces, and perpendicular to the plane of the drawing sheet.
  • the housing 8 is provided with an image screen 20 (FIG. 2), for example liquid crystal, which occupies part of its large flat face which faces down in the figure.
  • image screen 20 for example liquid crystal
  • the receiver is intended for the reception of waves in the frequency range called UHF, and in particular at reception teletext broadcasts.
  • an antenna which includes two plates 4 and 5, electrically conductive. These two plates are arranged on either side of the housing 8 and attached practically symmetrical with respect to this box 8, and with respect to the plane of symmetry 19. Plates 4 and 5 are here between them an angle whose vertex S is behind the screen, for an observer located in front of the screen, this arrangement being visible in FIG. 2, where the plans of the plates 4, 5 are perpendicular to the drawing sheet.
  • the distance between the ends 21 and 22, the most distant from each other, plates 4 and 5 is the order of a wavelength ⁇ of the center frequency of the range of frequencies to receive, measured by following the surface of the plates between points 21 and 22.
  • the antenna further comprises two plates 2, 3 called parallel which are placed parallel to the flat housing 8 and electrically and mechanically connected to the first plate 4 and second plate 5, respectively.
  • the liquid crystal display 20 is located nearby plates 2, 3, but it does not play the role of a plane of mass because it is not a good conductor for frequencies at most, at most it plays an approximate role of directional element, in the sense of this word in the antennas yagi.
  • the electronic circuit in the housing 8 is divided into several subsets 11, 12, 13, 14, 15, 16, whose ground planes are electrically connected to each other to others via inductors 161, 112, 114, 134, 145.
  • the parallel plates 2 and 3 have a rough drawing triangular ( Figure 1).
  • the triangles are asymmetrical, in other words, they are not isosceles.
  • the point to the right of plate 2 and the point to the left of plate 3 in figure 1 are higher than the middle of the plates and case. This asymmetry is not always necessary.
  • triangular plates we could use semi-circular or semi-elliptical plates without making much difference, such forms being similar to triangular "blunt" shapes.
  • An electrical connection to the electronic circuit can be connected to the antenna at a point 9 near the tip of the parallel plate 2 which faces the other parallel plate 3, and at a point 10 near the tip of the parallel plate 3 which is turned towards the other plate parallel 2.
  • an adapter balun of a known type (not shown) is connected between points 9 and 10 of the antenna, and the connection electrical to the electronic circuit can therefore be connected at only one of points 9 or 10.
  • the tuner connected to one of these points is for example element 11.
  • the antenna may further include (Figure 2) a plate connection 17 disposed between the plates 4 and 2 and which connects them electrically and mechanically.
  • Another plaque electrically conductive connection 18 is arranged in the same way between plates 3 and 5, which it connects mechanically and electrically. These plates do with plates 2, 3 at a 90 ° angle and with plates 4, 5 a angle of about 45 °, in the position shown, but which is adjustable as will be explained below.
  • Main plates 4 and 5, as well as the plates connection 17, 18 are for example rectangular and they have a height approximately equal to that of the housing.
  • the two plates 4 and 17 (or the two plates 5 and 18) can be rigidly attached to each other. However he it is better to provide joints electrically conductors 6 and 7 respectively between the two plates adjacent 4 and 17 and between the two adjacent plates 5 and 18. This allows the angle between the plates 4 and 17 to be adjusted, or 5 and 18, and also to fold the plates for the transport of the receiver.
  • the antenna parts 2 and 3 triangular are placed in front of the case, on either side of the screen 20.
  • the connecting parts 17 and 18 are absent.
  • screen 8 could be turned up. of the electrically conductive joints 6 and 7 are provided respectively between the two adjacent plates 4 and 2 and the two adjacent plates 5 and 3.
  • Plates 17, 2 can be made in one single sheet, for example aluminum, folded. In the case where there is no provision for articulation 6 (or 7), it is even the set of plates 4, 17, 2 (or 5, 18, 3) which can be made of a single folded sheet.
  • the metal plates can be plastic coated or painted to improve their aspect.
  • the plates and the joints can be made of plastic, the plates being covered with a metallized flexible sheet, by example stuck on plastic plates.

Claims (10)

  1. Tragbarer Empfänger (1) mit einem Gehäuse (8), in das eine elektronische Schaltung gebracht wird, und einer Antenne für den Empfang elektromagnetischer Wellen, wobei die besagte Antenne aufweist:
    zwei elektrische Hauptleiterplatten (4, 5), jede entlang einer Linie nach außen und beiderseits des Gehäuses befestigt, auf praktisch symmetrische Art, und
    zwei sogenannte parallele Platten (2, 3), die praktisch dreieckig sind, mit gegenübergestellt angeordneten Spitzen, und die gegenseitig auf einer selben symmetrischen Ebene angeordnet und jeweils an einer ihrer Seiten mit der Seite verbunden sind, die dem Gehäuse jeder der Hauptplatten zugewandt ist, und
    die Hauptplatten und die Parallelplatten zumindest in Anwenderposition untereinander einen Winkel bilden,
    dadurch gekennzeichnet, dass für eine Verwendung im sogenannten UHF-Frequenzband
    die beiden sogenannten Hauptplatten länger als die beiden sogenannten Parallelplatten sind, und
    der Abstand, gemessen entlang der Antennenplatten (2, 3, 4, 5), zwischen den jeweiligen äußersten Enden der beiden Hauptplatten (21, 22), der Größe einer Wellenlänge einer zu empfangenden Frequenz entspricht.
  2. Tragbarer Empfänger nach Anspruch 1, dadurch gekennzeichnet, dass der Abstand, gemessen entlang der Antennenplatten (2, 3, 4, 5), zwischen den jeweiligen äußersten Enden der beiden Hauptplatten (21, 22), der Größe einer Wellenlänge einer zu empfangenden Frequenz entspricht.
  3. Tragbarer Empfänger nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die besagte Antenne ein Gelenk auf der Ebene der Befestigungslinie jeder Hauptplatte aufweist, um den Winkel zwischen den Hauptplatten und den Parallelplatten anzupassen.
  4. Tragbarer Empfänger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die praktisch dreieckigen Parallelplatten jeweils eine asymmetrische Form in bezug auf eine horizontale Achse aufweisen.
  5. Tragbarer Empfänger nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Hauptplatten und das Gehäuse in einer zur Befestigungslinie einer Platte liegenden Richtung, praktisch dieselbe Gesamtgröße haben.
  6. Tragbarer Empfänger nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Parallelplatte (4, 5) mit einer Hauptplatte (2, 3) über eine Verbindungsplatte (17, 18) verbunden ist, die zugleich mit der Hauptplatte und mit der Verbindungsplatte einen Winkel bildet.
  7. Tragbarer Empfänger nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Platten aus Kunststoff gefertigt sind, und sie mit einem metallisierten elastischen Film überzogen sind.
  8. Tragbarer Empfänger nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es sich um einen Bildempfänger mit einem Bildschirm handelt.
  9. Tragbarer Empfänger nach Anspruch 8, dadurch gekennzeichnet, dass die praktisch dreieckigen Platten hinter dem Bildschirm angebracht sind.
  10. Tragbarer Empfänger nach Anspruch 8, dadurch gekennzeichnet, dass die praktisch parallelen Platten zwischen ihren Spitzen genügend Freiraum lassen, um dort den Bildschirm anzubringen.
EP96200856A 1995-04-05 1996-03-28 Tragbarer Empfänger mit einer Antenne Expired - Lifetime EP0736924B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9504041 1995-04-05
FR9504041 1995-04-05

Publications (2)

Publication Number Publication Date
EP0736924A1 EP0736924A1 (de) 1996-10-09
EP0736924B1 true EP0736924B1 (de) 2002-09-04

Family

ID=9477781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96200856A Expired - Lifetime EP0736924B1 (de) 1995-04-05 1996-03-28 Tragbarer Empfänger mit einer Antenne

Country Status (4)

Country Link
US (1) US5739795A (de)
EP (1) EP0736924B1 (de)
JP (1) JPH08288728A (de)
DE (1) DE69623373T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7519421B2 (en) * 2001-01-16 2009-04-14 Kenergy, Inc. Vagal nerve stimulation using vascular implanted devices for treatment of atrial fibrillation
US6917833B2 (en) * 2003-09-16 2005-07-12 Kenergy, Inc. Omnidirectional antenna for wireless communication with implanted medical devices
US20060074449A1 (en) * 2003-11-03 2006-04-06 Stephen Denker Intravascular stimulation system with wireless power supply
US7003350B2 (en) * 2003-11-03 2006-02-21 Kenergy, Inc. Intravenous cardiac pacing system with wireless power supply
US20050200549A1 (en) * 2004-03-15 2005-09-15 Realtronics Corporation Optimal Tapered Band Positioning to Mitigate Flare-End Ringing of Broadband Antennas
US7295879B2 (en) * 2005-06-24 2007-11-13 Kenergy, Inc. Double helical antenna assembly for a wireless intravascular medical device
US7749265B2 (en) * 2005-10-05 2010-07-06 Kenergy, Inc. Radio frequency antenna for a wireless intravascular medical device
US7881804B2 (en) * 2006-03-15 2011-02-01 Kenergy, Inc. Composite waveform based method and apparatus for animal tissue stimulation
WO2007146075A2 (en) * 2006-06-07 2007-12-21 Cherik Bulkes Analog signal transition detector
US20070288077A1 (en) * 2006-06-07 2007-12-13 Cherik Bulkes Self-anchoring electrical lead with multiple electrodes
WO2007146076A2 (en) * 2006-06-07 2007-12-21 Cherik Bulkes Biological tissue stimulator with flexible electrode carrier
US20080039904A1 (en) * 2006-08-08 2008-02-14 Cherik Bulkes Intravascular implant system
US20080077184A1 (en) * 2006-09-27 2008-03-27 Stephen Denker Intravascular Stimulation System With Wireless Power Supply
WO2008137452A1 (en) * 2007-05-04 2008-11-13 Kenergy Royalty Company, Llc Implantable high efficiency digital stimulation device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3020550A (en) * 1959-09-28 1962-02-06 Jerrold Electronics Corp Broadband sheet antenna
JPS56144645A (en) * 1980-04-11 1981-11-11 Matsushita Electric Ind Co Ltd Diversity antenna device for portable radio equipment
JPS59186401A (ja) * 1983-04-07 1984-10-23 Sony Corp アンテナ
DE3520983A1 (de) * 1985-06-12 1986-12-18 Robert Bosch Gmbh, 7000 Stuttgart Antenne fuer ein funksende- und -empfangsgeraet
JPH0738599B2 (ja) * 1987-01-14 1995-04-26 松下電工株式会社 可搬型衛星通信装置
CN87211386U (zh) * 1987-11-16 1988-08-24 上海市东海军工技术工程公司 全频道电视平面接收天线
JPH033503A (ja) * 1989-05-31 1991-01-09 Komatsu Ltd 折り曲げアンテナ
AT393054B (de) * 1989-07-27 1991-08-12 Siemens Ag Oesterreich Sende- und/oder empfangsanordnung fuer tragbare geraete
JPH05236397A (ja) * 1992-05-26 1993-09-10 Matsushita Electric Works Ltd テレビジョン受像機
US5542104A (en) * 1993-05-27 1996-07-30 Nec Corporation Portable satellite communication equipment with foldable flat antennae common to both transmission and reception

Also Published As

Publication number Publication date
DE69623373D1 (de) 2002-10-10
US5739795A (en) 1998-04-14
EP0736924A1 (de) 1996-10-09
DE69623373T2 (de) 2003-06-05
JPH08288728A (ja) 1996-11-01

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