WO2002001670A1 - Unitary antenna device - Google Patents

Unitary antenna device Download PDF

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Publication number
WO2002001670A1
WO2002001670A1 PCT/SE2001/001414 SE0101414W WO0201670A1 WO 2002001670 A1 WO2002001670 A1 WO 2002001670A1 SE 0101414 W SE0101414 W SE 0101414W WO 0201670 A1 WO0201670 A1 WO 0201670A1
Authority
WO
WIPO (PCT)
Prior art keywords
support structure
antenna
antenna device
circuit board
printed circuit
Prior art date
Application number
PCT/SE2001/001414
Other languages
French (fr)
Inventor
Annika Yidong Hu
Daniel Sundberg
Original Assignee
Allgon Mobile Communications Ab
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 Allgon Mobile Communications Ab filed Critical Allgon Mobile Communications Ab
Priority to AU66483/01A priority Critical patent/AU6648301A/en
Publication of WO2002001670A1 publication Critical patent/WO2002001670A1/en

Links

Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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
    • 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
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element

Definitions

  • the present invention relates generally to antenna de- vices and more particularly to an antenna device in one part designed for use in a portable communication device, such as a mobile phone.
  • an internal antenna device as a module adapted to be fitted into the interior of a portable communication device.
  • the module is often difficult and expensive to assemble and the contacting to the electronic circuitry of the device to which the module is mounted is space con- suming and unreliable, relying on contact pins with limited contact area, for example.
  • soldering is used, which adds another step to the assembly process, increasing total costs.
  • An object of the present invention is to provide an antenna device, which is easy and inexpensive to manufacture, and which is easy to mount in a portable communication device. Another object is to provide an antenna device wherein the connection to electronic circuitry it facilitated.
  • the invention is based on the realisation that an antenna pattern can be provided on a single part func- tioning as a frame, wherein the connection details are integrated in the frame.
  • an antenna device as defined in appended claim 1 and a portable communication device as defined in appended claim 16.
  • the invention provides an antenna device, which is easy and inexpensive to manufacture and which is easy to mount to e.g. a printed circuit board having electronic circuitry to be connected to the antenna device.
  • FIG. 1 is a perspective view of an antenna device according to the invention
  • FIG. 2 is an end view of the antenna device shown in FIG. 1;
  • FIG. 3 is a sectional view through the antenna device of FIGS. 1 and 2 along the lines III-III; and FIG. 4 is a perspective view of an alternative embodiment of an antenna device according to the invention.
  • An antenna device or module generally designated 1, comprises an essentially box like frame or support structure 10 made of some suitable non-conductive material, such as moulded plastics.
  • the frame is provided with a contour so as to fit within the housing of a mobile phone or other portable communication device (not shown).
  • a mobile phone or other portable communication device not shown.
  • the frame 10 is provided with four resilient legs, each of which is provided with a hook, three of which lla-c are shown in FIG. 1.
  • the hooks are adapted for gripping around the edges of a printed circuit board (PCB) 20, see FIG. 2.
  • PCB printed circuit board
  • Two essentially parallel slits 12a, 12b are provided at one end of the frame 10, defining there between a wing or tongue 13.
  • a similar wing 14 is provided at the centre portion of the frame 10, see FIGS. 1 and 3. The function of these wings 13, 14 will be described below.
  • the upper side of the frame 10 is provided with an electrically conductive radiating antenna element, generally designated 30.
  • the antenna element can have any suitable shape giving required characteristics to an internal antenna. However, the general shape is often that the antenna element is parallel to and spaced apart from the PCB 20, which in many cases functions as a ground plane for the antenna.
  • the antenna element 30 can be provided as a flex film, which is fixed to the frame in some suitable way, e.g. by means of an adhesive.
  • the antenna element is provided by means of a so-called moulded interconnected device (MID) process, wherein the antenna pattern is provided as a metallisation directly on a suitable plastic material.
  • MID moulded interconnected device
  • the respective end portion of the wings rests on the PCB 20 exerting a force thereon when the frame is snapped on to the PCB.
  • This force is due to that at least part of the wings extends beneath the rest of the frame 10 by a distance d, see FIG. 2, and that the entire wings thus function as spring elements pressing the ends thereof against the PBC 20.
  • the exerted force depends on the distance d and the length of the slits 12a, 12b for the first wing 13 and corresponding parameters for the second wing 14.
  • the wings extend 0.2-0.3 miilimetres below the frame, i.e., the distance d is 0.2-0.3 millimetres.
  • the position of the first wing 13 in mounted position appears clearly from FIG. 2.
  • Part of the radiating element 30 extends down the wings 13, 14 and around the edges thereof so that a contact portion on each wing rests against the PCB 20. Such a portion 31 of the antenna element 30 is shown in FIGS . 1 and 2.
  • the PCB is provided with corresponding metallisation areas functioning as contact portions on the PCB.
  • the wing arrangement provides for a simple yet reliable connector providing electrical contact between the antenna element 30 and the PCB 20. From a radio frequency point of view, this arrangement is very advantageous in that the contact area can be varied, extending from a small part of the wing edge to a major part thereof. Apart from providing a reliable connection, the configuration of the contact area can be varied in order to achieve RF matching of the antenna element.
  • FIGS. 1 and 2 An example of capacitive coupling between the antenna element 20 and the PCB is also shown in FIGS. 1 and 2.
  • a portion 32 of the antenna pattern 30 extends to the edge of the wing 13 in an area where the edge is not in direct contact with the PCB 20, see FIG. 2, but is spaced apart therefrom by the distance d.
  • the PCB 20 is provided with a conductive layer directly below the portion 22, a well-defined capacitive coupling is obtained between the antenna element 30 and the PCB 20.
  • two wings 13, 14 are provided, wherein the antenna element portion 31 provided on the first wing 13 functions as a grounding portion and a corresponding portion 33 provided on the second wing 14 functions as a feeding portion.
  • FIG. 4 An alternatively shaped antenna device 40 is shown in FIG. 4. However, this embodiment has the same general properties as the one described with reference to FIGS. 1-3.
  • an antenna element module wherein no extra connectors are needed, i.e., all essential components are provided in one carrier, such as the radiating element itself, contacting thereto, attachment devices for attaching the carrier to a PCB etc .
  • an antenna device Preferred embodiments of an antenna device according to the invention have been described. However, the person skilled in the art realises that these can be varied within the scope of the appended claims without departing from the inventive idea.
  • Embodiments with two wings have been described. However, more than two wings can be provided if more than one antenna element is provided on the frame, for example. In other applications one single wing is sufficient.
  • the wings can have any suitable shape and position. For example, instead of providing one of the wings in the centre portion of the frame, it can be provided at the opposite end of the frame compared to the first wing. Also, each wing can be provided with more than one contact area.
  • any antenna pattern is possible, as long as it is adapted for a built in antenna, such as a PIFA, patch or meander antenna etc. It is also possible to provide an antenna pattern on the underside of the frame 20. It is also possible to provide discrete components by means of surface mounting, for example, which can be used for antenna matching etc .
  • Frames with four legs have been disclosed.
  • the person skilled in the art realises that the frame can be provided with any suitable number of legs or other attachment devices .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)

Abstract

An antenna device for a portable radio communication device, comprises a unitary support structure (10) with an antenna element (30) provided thereon. The antenna element has a feeding portion (33) connectable to a feed device and a grounding portion (31) connectable to a grounding device. The support structure is adapted to be mounted to a PCB (20) and is provided with one or more resilient wings (13, 14) with at least a feeding portion or a grounding portion. The wings are adapted to press on the underlying PCB when the support structure is mounted thereto. The antenna device is easy and inexpensive to manufacture and mount and good radio frequency coupling is achieved between the antenna element and the PCB.

Description

UNITARY ANTENNA DEVICE
FIELD OF INVENTION
The present invention relates generally to antenna de- vices and more particularly to an antenna device in one part designed for use in a portable communication device, such as a mobile phone.
BACKGROUND
It is previously known to provide an internal antenna device as a module adapted to be fitted into the interior of a portable communication device. However, the module is often difficult and expensive to assemble and the contacting to the electronic circuitry of the device to which the module is mounted is space con- suming and unreliable, relying on contact pins with limited contact area, for example. Alternatively, soldering is used, which adds another step to the assembly process, increasing total costs.
The patent publication US 4,876,709 (Rogers et al.) discloses an antenna internally contained within a housing of a cordless telephone and adapted for snap- in engagement with suitably configured bosses within the housing. However, the connection of the antenna to the internal electronic circuitry is not described.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an antenna device, which is easy and inexpensive to manufacture, and which is easy to mount in a portable communication device. Another object is to provide an antenna device wherein the connection to electronic circuitry it facilitated.
The invention is based on the realisation that an antenna pattern can be provided on a single part func- tioning as a frame, wherein the connection details are integrated in the frame.
According to the present invention there is provided an antenna device as defined in appended claim 1 and a portable communication device as defined in appended claim 16.
Further preferred embodiments are defined in the dependent claims.
The invention provides an antenna device, which is easy and inexpensive to manufacture and which is easy to mount to e.g. a printed circuit board having electronic circuitry to be connected to the antenna device.
BRIEF DESCRIPTION OF DRAWINGS
The invention is now described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view of an antenna device according to the invention;
FIG. 2 is an end view of the antenna device shown in FIG. 1;
FIG. 3 is a sectional view through the antenna device of FIGS. 1 and 2 along the lines III-III; and FIG. 4 is a perspective view of an alternative embodiment of an antenna device according to the invention.
DETAILED DESCRIPTION OF THE INVENTION
In the following, a detailed description of preferred embodiments of an antenna device according to the invention will be given, first with reference to FIG. 1. An antenna device or module, generally designated 1, comprises an essentially box like frame or support structure 10 made of some suitable non-conductive material, such as moulded plastics. The frame is provided with a contour so as to fit within the housing of a mobile phone or other portable communication device (not shown). Thus, by adapting the shape of the frame to the shape of the communication device in which it is to be mounted, space is used in an optimum way, which is of vital importance with today's ever- increasing demand for smaller communication devices.
The frame 10 is provided with four resilient legs, each of which is provided with a hook, three of which lla-c are shown in FIG. 1. The hooks are adapted for gripping around the edges of a printed circuit board (PCB) 20, see FIG. 2. When the frame 10 is mounted to the PCB 20 during assembly, the frame is simply pressed to the PCB and the hooks provide a snap-in function, fixing the frame in the position shown in FIGS. 2 and 3.
Two essentially parallel slits 12a, 12b are provided at one end of the frame 10, defining there between a wing or tongue 13. A similar wing 14 is provided at the centre portion of the frame 10, see FIGS. 1 and 3. The function of these wings 13, 14 will be described below.
The upper side of the frame 10 is provided with an electrically conductive radiating antenna element, generally designated 30. The antenna element can have any suitable shape giving required characteristics to an internal antenna. However, the general shape is often that the antenna element is parallel to and spaced apart from the PCB 20, which in many cases functions as a ground plane for the antenna.
The antenna element 30 can be provided as a flex film, which is fixed to the frame in some suitable way, e.g. by means of an adhesive. Alternatively, the antenna element is provided by means of a so-called moulded interconnected device (MID) process, wherein the antenna pattern is provided as a metallisation directly on a suitable plastic material.
The function of the wings 13, 14 will now be described. As is seen in FIG. 3, the respective end portion of the wings rests on the PCB 20 exerting a force thereon when the frame is snapped on to the PCB. This force is due to that at least part of the wings extends beneath the rest of the frame 10 by a distance d, see FIG. 2, and that the entire wings thus function as spring elements pressing the ends thereof against the PBC 20. The exerted force depends on the distance d and the length of the slits 12a, 12b for the first wing 13 and corresponding parameters for the second wing 14. In the preferred embodiment, the wings extend 0.2-0.3 miilimetres below the frame, i.e., the distance d is 0.2-0.3 millimetres. The position of the first wing 13 in mounted position appears clearly from FIG. 2.
Part of the radiating element 30 extends down the wings 13, 14 and around the edges thereof so that a contact portion on each wing rests against the PCB 20. Such a portion 31 of the antenna element 30 is shown in FIGS . 1 and 2. The PCB is provided with corresponding metallisation areas functioning as contact portions on the PCB.
The wing arrangement provides for a simple yet reliable connector providing electrical contact between the antenna element 30 and the PCB 20. From a radio frequency point of view, this arrangement is very advantageous in that the contact area can be varied, extending from a small part of the wing edge to a major part thereof. Apart from providing a reliable connection, the configuration of the contact area can be varied in order to achieve RF matching of the antenna element.
An example of capacitive coupling between the antenna element 20 and the PCB is also shown in FIGS. 1 and 2. A portion 32 of the antenna pattern 30 extends to the edge of the wing 13 in an area where the edge is not in direct contact with the PCB 20, see FIG. 2, but is spaced apart therefrom by the distance d. Thus, if the PCB 20 is provided with a conductive layer directly below the portion 22, a well-defined capacitive coupling is obtained between the antenna element 30 and the PCB 20. In the example illustrated in FIGS. 1-3, two wings 13, 14 are provided, wherein the antenna element portion 31 provided on the first wing 13 functions as a grounding portion and a corresponding portion 33 provided on the second wing 14 functions as a feeding portion.
An alternatively shaped antenna device 40 is shown in FIG. 4. However, this embodiment has the same general properties as the one described with reference to FIGS. 1-3.
With the antenna device according to the invention, an antenna element module is provided wherein no extra connectors are needed, i.e., all essential components are provided in one carrier, such as the radiating element itself, contacting thereto, attachment devices for attaching the carrier to a PCB etc .
With the inventive device, improved radio frequency performance is achieved due to improved contact properties. Another advantage is that the area of the frame can be fully used as opposed to prior art devices, wherein contact pins have been used.
Preferred embodiments of an antenna device according to the invention have been described. However, the person skilled in the art realises that these can be varied within the scope of the appended claims without departing from the inventive idea. Embodiments with two wings have been described. However, more than two wings can be provided if more than one antenna element is provided on the frame, for example. In other applications one single wing is sufficient. Also, the wings can have any suitable shape and position. For example, instead of providing one of the wings in the centre portion of the frame, it can be provided at the opposite end of the frame compared to the first wing. Also, each wing can be provided with more than one contact area.
Specific antenna patterns have been shown. However, any antenna pattern is possible, as long as it is adapted for a built in antenna, such as a PIFA, patch or meander antenna etc. It is also possible to provide an antenna pattern on the underside of the frame 20. It is also possible to provide discrete components by means of surface mounting, for example, which can be used for antenna matching etc .
Frames with four legs have been disclosed. The person skilled in the art realises that the frame can be provided with any suitable number of legs or other attachment devices .

Claims

1. An antenna device for a portable radio communi- cation device, comprising
a unitary support structure (10),
an antenna element (30) provided on said support structure, said antenna element having at least one of a feeding portion (33) connectable to a feed device and a grounding portion (31) connectable to a ground device,
characterised by
said support structure (10) being adapted to be mounted to a printed circuit board (20), and
- said support structure (10) being provided with at least one resilient wing (13, 14) provided with at least a feeding portion (33) or a grounding portion (31), wherein said at least one wing is adapted to press on said printed circuit board (20) when said support structure is mounted thereto.
2. The antenna device according to claim 1, wherein said support structure (10) is essentially box like.
3. The antenna device according to claim 1 or 2, wherein said support structure (10) is shaped so as to fit the housing of said portable radio communication device .
4. The antenna device according to any of claims 1-3, wherein said support structure (10) comprises attachment devices, preferably resilient legs having a respective hook (lla-c), for attachment to said printed circuit board (20).
5. The antenna device according to any of claims 1-4, wherein said support structure is provided with at least two slits (12a, 12b), whereby a wing (13) is provided there between.
6. The antenna device according to any of claims 1-5, wherein said antenna element (30) is spaced apart from said printed circuit board (20) when said support structure (10) is mounted to said printed circuit board.
7. The antenna device according to claim 6, wherein said antenna element (30) is essentially parallel to said printed circuit board (20) when said support structure (10) is mounted to said printed circuit board.
8. The antenna device according to any of claims 1-7, wherein said antenna element (30) is provided as a conductive element on a flex film.
9. The antenna device according to any of claims 1-8, wherein an end portion of said wing (13) is provided with a part protruding from other parts of said end portion, wherein said protruding part is at least partly covered by a portion (31) of said antenna element (30) , thereby providing galvanic coupling with a conductive area provided on said printed circuit board (20) when said support structure (10) is mounted to said printed circuit board.
10. The antenna device according to any of claims 1-9, wherein an end portion of said wing (13) is provided with a part protruding from other parts of said end portion and said other parts are at least partly covered by a portion (32) of said antenna element (30), thereby providing capacitive coupling with a conductive area provided on said printed circuit board (20) when said support structure (10) is mounted to said printed circuit board.
11. The antenna device according to claim 9 or 10, wherein said protruding part protrudes by a distance (d) of 0.2 - 0.3 millimetres from said other parts.
12. The antenna device according to any of claims 1-11, wherein said feeding portion (33) and/or said grounding portion (31) are configured so as to achieve radio frequency matching of said antenna element (30).
13. The antenna device according to any of claims 1-12, wherein said support structure (10) is hollow.
14. The antenna device according to claim 13, wherein said support structure (10) is provided with two sides and said antenna element (30) is provided on both sides of said support structure (10).
15. The antenna device according to any of claims 1-14, wherein said antenna element (30) forms part of a PIFA, patch or meander antenna.
16. A portable communication device comprising an antenna device according to any of the preceding claims.
PCT/SE2001/001414 2000-06-26 2001-06-20 Unitary antenna device WO2002001670A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU66483/01A AU6648301A (en) 2000-06-26 2001-06-20 Unitary antenna device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0002387-9 2000-06-26
SE0002387A SE0002387L (en) 2000-06-26 2000-06-26 Antenna device

Publications (1)

Publication Number Publication Date
WO2002001670A1 true WO2002001670A1 (en) 2002-01-03

Family

ID=20280239

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2001/001414 WO2002001670A1 (en) 2000-06-26 2001-06-20 Unitary antenna device

Country Status (3)

Country Link
AU (1) AU6648301A (en)
SE (1) SE0002387L (en)
WO (1) WO2002001670A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002073737A1 (en) * 2001-03-13 2002-09-19 Gigaant Ab Antenna device
WO2003030297A1 (en) * 2001-10-04 2003-04-10 Perlos Ab Electric apparatus
FR2842951A1 (en) * 2002-07-26 2004-01-30 Socapex Amphenol LOW THICKNESS PLATE ANTENNA
WO2004038940A1 (en) * 2002-10-22 2004-05-06 Siemens Aktiengesellschaft Radio communication device and associated coupling structure comprising at least one conductor board and at least one flat antenna coupled thereto
WO2005020371A1 (en) * 2003-08-22 2005-03-03 Murata Manufacturing Co., Ltd. Antenna structure and communication unit employing it
EP1537626A2 (en) * 2002-06-18 2005-06-08 Centurion Wireless Technologies, Inc. Compact dual band circular pifa
CN100559726C (en) * 2002-10-22 2009-11-11 西门子公司 Radio communication equipment and coupled structure
US8063835B2 (en) 2006-03-13 2011-11-22 Laird Technologies Ab Antenna arrangement and a portable radio communication device for such an antenna arrangement
DE10347720B4 (en) * 2003-06-24 2013-06-20 Samsung Electro-Mechanics Co., Ltd. Holding device for an antenna connection part of a built-in antenna
WO2017093517A1 (en) * 2015-12-04 2017-06-08 Hirschmann Car Communication Gmbh Rooftop antenna having a direct contact between an antenna foil and a circuit board

Citations (7)

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US5258892A (en) * 1992-01-22 1993-11-02 Motorola, Inc. Molded-in antenna with solderless interconnect
JPH10117108A (en) * 1996-10-09 1998-05-06 Matsushita Electric Ind Co Ltd Antenna system for radio equipment
EP0892459A1 (en) * 1997-07-08 1999-01-20 Nokia Mobile Phones Ltd. Double resonance antenna structure for several frequency ranges
JPH11168316A (en) * 1997-10-01 1999-06-22 Furukawa Electric Co Ltd:The Small-sized antenna and manufacture therefor
JPH11355034A (en) * 1998-06-04 1999-12-24 Nec Corp Antenna
JPH11355023A (en) * 1998-06-12 1999-12-24 Nec Saitama Ltd Portable communication unit having built-in antenna
DE29922053U1 (en) * 1998-12-23 2000-02-17 Nokia Mobile Phones Ltd Radio

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Publication number Priority date Publication date Assignee Title
US5258892A (en) * 1992-01-22 1993-11-02 Motorola, Inc. Molded-in antenna with solderless interconnect
JPH10117108A (en) * 1996-10-09 1998-05-06 Matsushita Electric Ind Co Ltd Antenna system for radio equipment
EP0892459A1 (en) * 1997-07-08 1999-01-20 Nokia Mobile Phones Ltd. Double resonance antenna structure for several frequency ranges
JPH11168316A (en) * 1997-10-01 1999-06-22 Furukawa Electric Co Ltd:The Small-sized antenna and manufacture therefor
JPH11355034A (en) * 1998-06-04 1999-12-24 Nec Corp Antenna
JPH11355023A (en) * 1998-06-12 1999-12-24 Nec Saitama Ltd Portable communication unit having built-in antenna
DE29922053U1 (en) * 1998-12-23 2000-02-17 Nokia Mobile Phones Ltd Radio

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PATENT ABSTRACTS OF JAPAN *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002073737A1 (en) * 2001-03-13 2002-09-19 Gigaant Ab Antenna device
WO2003030297A1 (en) * 2001-10-04 2003-04-10 Perlos Ab Electric apparatus
EP1537626A2 (en) * 2002-06-18 2005-06-08 Centurion Wireless Technologies, Inc. Compact dual band circular pifa
EP1537626A4 (en) * 2002-06-18 2005-07-13 Centurion Wireless Tech Inc Compact dual band circular pifa
FR2842951A1 (en) * 2002-07-26 2004-01-30 Socapex Amphenol LOW THICKNESS PLATE ANTENNA
WO2004012298A2 (en) * 2002-07-26 2004-02-05 Amphenol Socapex Thin patch antenna
WO2004012298A3 (en) * 2002-07-26 2004-04-08 Socapex Amphenol Thin patch antenna
CN100559726C (en) * 2002-10-22 2009-11-11 西门子公司 Radio communication equipment and coupled structure
WO2004038940A1 (en) * 2002-10-22 2004-05-06 Siemens Aktiengesellschaft Radio communication device and associated coupling structure comprising at least one conductor board and at least one flat antenna coupled thereto
DE10347720B4 (en) * 2003-06-24 2013-06-20 Samsung Electro-Mechanics Co., Ltd. Holding device for an antenna connection part of a built-in antenna
WO2005020371A1 (en) * 2003-08-22 2005-03-03 Murata Manufacturing Co., Ltd. Antenna structure and communication unit employing it
US8063835B2 (en) 2006-03-13 2011-11-22 Laird Technologies Ab Antenna arrangement and a portable radio communication device for such an antenna arrangement
WO2017093517A1 (en) * 2015-12-04 2017-06-08 Hirschmann Car Communication Gmbh Rooftop antenna having a direct contact between an antenna foil and a circuit board
DE102016123369B4 (en) 2015-12-04 2022-07-14 Hirschmann Car Communication Gmbh Roof antenna with direct contacting of an antenna foil to a printed circuit board

Also Published As

Publication number Publication date
AU6648301A (en) 2002-01-08
SE0002387L (en) 2001-12-27
SE0002387D0 (en) 2000-06-26

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