WO2002035652A1 - Antennes internes destinees a des terminaux portatifs et montage associe - Google Patents

Antennes internes destinees a des terminaux portatifs et montage associe Download PDF

Info

Publication number
WO2002035652A1
WO2002035652A1 PCT/KR2001/001673 KR0101673W WO0235652A1 WO 2002035652 A1 WO2002035652 A1 WO 2002035652A1 KR 0101673 W KR0101673 W KR 0101673W WO 0235652 A1 WO0235652 A1 WO 0235652A1
Authority
WO
WIPO (PCT)
Prior art keywords
conducting plate
antenna
internal antenna
circuit board
printed circuit
Prior art date
Application number
PCT/KR2001/001673
Other languages
English (en)
Inventor
Jeong-Kun Oh
Kyung-Min Lee
Duk-Jae Park
Joo-Hyung Lee
Jong-Cheol Yun
Byoung-Nam Kim
Original Assignee
Ace Technology
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 Ace Technology filed Critical Ace Technology
Publication of WO2002035652A1 publication Critical patent/WO2002035652A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
    • 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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths
    • 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
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration

Definitions

  • the present invention relates to an antenna for a portable terminal and, more
  • the present invention relates to a method of mounting such an antenna.
  • antennas for portable terminals include a monopole antenna having an electrical length of ⁇ /4 (where, ⁇ is a wavelength), a helical antenna having an electrical length of ⁇ /4, and a retractable antenna which is a combination of a monopole
  • antenna and a helical antenna Since all these antennas are installed or exposed outside the terminal, the antennas are being regarded as one of the major obstacles in miniaturizing the terminal. Accordingly, much efforts are being exerted to develop internal antennas which can be mounted directly on a surface of a printed circuit board of the terminal.
  • Antenna technologies for implementing the internal antennas include an inverted-F type antenna technology utilizing probe feeding in a radiator, a microstrip patch antenna technology using printed circuit board technology, and a ceramic chip antenna technology
  • the inverted-F type antenna has a narrow bandwidth and thus is inadequate for a terminal which is used for a wideband
  • the ceramic antenna is disadvantageous in that the loss in the antenna gain may be large because of the high dielectric constant of the ceramic dielectric material.
  • the microstrip patch antenna which is advantageous in that the frequency
  • the antenna itself may be bulky.
  • one object of the present invention is to provide an internal antenna which shows a high radiation efficiency a wide bandwidth with negligible loss caused by dielectric material.
  • Another object of the present invention is to provide a method of mounting an antenna in a manner that enhances the radiation efficiency.
  • An internal antenna for achieving one of the above objects includes two radiators
  • the wide bandwidth characteristics are obtained by adjusting the distance between the patches so as to result in an electromagnetic coupling and providing a vertical radiator coupled to the patches.
  • a ground conductor is electrically connected to the ground plane of the printed
  • Feeding means which is connected to the first conducting plate feeds signal from the feeding point to the first conducting plate and feeds
  • a second conducting plate is disposed parallel with the first conducting plate, and a connection conducting plate connects the first conducting plate to the second conducting plate.
  • the internal antenna further includes a vertical conducting plate extending vertically from an edge of the second conducting plate to be electrically
  • At least one slit is formed penetrating the first conducting plate to provide a signal path. Also, it is preferable that
  • the internal antenna is first disposed in such a manner that a upper edge of the internal antenna is displaced outwards from an edge of
  • the ground conductor is connected to a ground of the printed circuit board, and the feeding means is connected to
  • a predetermined portion of a ground plane of the printed circuit board close to an edge is removed, and then the internal antenna is disposed on the printed circuit board on which the ground plane is
  • the ground conductor is connected to a ground of the printed circuit board, and the feeding means is connected to a feeding point of the printed circuit board.
  • FIGS. 1A and IB show an embodiment of an internal antenna according to the present invention
  • FIG. 2 shows the internal antenna of FIGS. 1 A and FIG. IB mounted on a printed circuit board of a portable terminal;
  • FIG. 3 shows a standing-wave ratio pattern of the internal antenna of FIGS. 1 A and
  • FIG. 4 A shows a radiation pattern in electrical field plane of the internal antenna of FIGS. 1 A and IB;
  • FIG. 4B shows a radiation patterns in magnetic field plane of the internal antenna FIGS. 1A and IB;
  • FIGS. 5 A and 5B show another embodiment of the internal antenna according to
  • FIG. 6 shows the internal antenna of FIGS. 5 A and FIG. 5B mounted on a printed circuit board of a portable terminal;
  • FIG. 7 shows a standing-wave ratio pattern of the internal antenna of FIGS. 5 A and 5B;
  • FIG. 8 A and FIG. 8B show yet another embodiment the internal antenna according
  • FIG. 9 shows the internal antenna of FIGS. 8 A and FIG. 8B mounted on a printed circuit board of a portable terminal.
  • FIG. 10 shows a standing- wave ratio pattern of the internal antenna of FIGS. 8 A and 8B.
  • FIG. lA is a perspective view of an internal antenna according to an embodiment of the present invention seen from the upper side and FIG. 5B is a perspective view of the antenna seen from the lower side.
  • the internal antenna Referring to FIGS. 1 A and IB, the internal antenna
  • a ground conductor 100 electrically connected to ground of printed circuit board (PCB) of a portable terminal (for example, by soldering), a first conducting plate 110 disposed parallel with the ground conductor 100 while being spaced apart from the ground conductor 100 by a certain distance, a second conducting
  • connection conducting plate 130 for connecting the first and the second conducting plates 110 and 120 to each other, a
  • Such an antenna is mounted on the PCB of the portable terminal having a ground plane and feeding point.
  • radiator runs across the center of the first conducting plate 110 to an edge, and thus the first conducting plate 110 is "U"-shaped. Also, a feeding probe pin 114 extends downward
  • connection conducting plate 130 is connected to the second conducting plate 120 by a connection conducting plate 130.
  • the second conducting plate 120 operating as a main radiator has a rectangular shape.
  • a circular hole 122 penetrates the second conducting plate 120 and a second slit 124 runs from the hole 122 toward the center of the plate.
  • "L"-shaped third slit 126 is formed to be spaced apart from the second slit 124 by a certain distance.
  • a fourth slit 128 having a rectangular a shape is further provided between the
  • the hole 122 divides the signal path of the signal input through the connection conducting plate 130 into two paths along the circumference of the hole 122, i.e. clockwise
  • the hole 122 may have a rectangular or triangular sectional shape rather than the circle shape. Since, however,
  • such an angular hole may give rise to a perturbation which prevents from the divergence
  • the hole 122 has a circular sectional shape for facilitating
  • the second slit 124 and the "L"-shaped third slit 126 forms a "U"-shaped signal
  • the length of the signal path along the circumference of the hole 122 may be adjusted by changing the length and the position of
  • the second and the third slits 124 and 126 which may be used for tuning of the operation
  • the fourth slit 128 divides the signal
  • the vertical radiating plate 150 is spaced apart from the second conducting plate
  • the bandwidth of the antenna depends on the electromagnetic coupling between the first and the second conducting
  • the plates 110 and 120 also, which may be adjusted by changing the height of the vertical radiating plate 150. Meanwhile, it is preferable to dispose the first and the second conducting plates 110 and 120 to be close in proximity so that the plates 110 and 120 are
  • the signal fed from an internal circuit of the terminal to the first conducting plate 110 through the feeding probe pin 114 is provided to the second
  • the signal is received through the first and the second conducting plates 110 and 120 and the vertical radiating plate 150 is provided the internal circuit of the terminal
  • the first conducting plate 110 has a dominant influence on input impedance
  • the first slit 112 is critical to the operation frequency of the
  • the vertical conducting plate 140 connected to a ground plane of the terminal through the ground conductor 100 may work as another
  • FIG. 2 shows the internal antenna of FIGS. 1 A and FIG. IB mounted on a printed
  • PCB circuit board of a portable terminal.
  • the antenna is installed such that upper edge of the antenna is displaced upwards from the upper edge of the PCB
  • the antenna may be installed inside the PCB or to be aligned to the edge of the PCB after the ground plane of the PCB is removed as much as the offset.
  • FIG. 3 shows a standing-wave ratio pattern of the internal antenna of FIGS. 1 A and IB.
  • the horizontal axis indicates a frequency range [GHz] and the vertical
  • the internal antenna according to the present invention shows a wide bandwidth characteristics of having an operation bandwidth of
  • the size of the antenna used in the measurement is 30 x 12 x 4 [mm] and the distance between the first and the second conducting plates 110 and 120
  • FIGS. 4A and 4B show radiation patterns in electrical field plane (or a vertical
  • FIG. 4A shows a maximum gain of 2.1 [dBi] at 155 degree which is 25 degrees downwards from a vertical
  • FIG. 4B shows that the antenna shows the maximum gain of 1.3 [dBi] at 190 degree.
  • FIGS. 5 A and 5B show another embodiment of the internal antenna according to the present invention.
  • FIG. 5 A is a perspective view of the internal antenna seen from the upper side
  • FIG. 5B is a perspective view of the antenna seen from the lower side.
  • the internal antenna according to the present embodiment has an increased aspect ratio and the slit in a first conducting plate 210 is divided into two shorter slits 212 and 214. Further, slits 224, 226, and 228 in
  • a second conducting plate 220 are formed longitudinally, so that the second conducting
  • a second vertical conducting plate 260 is further provided at an edge the second
  • a fifth slit and a sixth slits 212 and 214 in the first conducting plate 210 forms
  • the second conducting plate 220 has the
  • first vertical conducting plate 140 extending from the top edge for the expansion of the bandwidth and the resonance in a higher frequency band, which is described below with
  • a seventh slit 224 formed longitudinally contrary to the second slit 124 shown in FIGS. 1 A and FIG. IB enables the signal to flow counterclockwise around a hole 222, which results in a phase difference between a signal flowing left directly from a connection
  • the antenna bandwidth may be enlarged because of a parasitic radiation owing to the interference of
  • Eighth slit 226 disposed periodically to form a shape of a "comb" and multiple ninth slit 228 alternating with the eighth slit 226 provides a zigzagging signal path which is sufficiently long in spite of the small size of the antenna and facilitates a resonance in lower
  • FIG. 6 shows the internal antenna of FIGS. 5 A and FIG. 5B mounted on a printed
  • the antenna is installed such that upper edge of the antenna is displaced upwards from the
  • the antenna may be installed inside the PCB or to be aligned to the edge of the PCB after the ground plane of the PCB is
  • FIG. 7 shows a standing- wave ratio pattern of the internal antenna of FIGS. 5 A and 5B.
  • the horizontal axis indicates a frequency range [MHZ] and the vertical axis indicates a reflection loss[dB].
  • the internal antenna according to the present embodiment shows a wide bandwidth characteristics of having an operation bandwidth of about 460 MHZ (1.74 - 2.2 GHz) for a reference standing- wave ratio of 2: 1.
  • another operation bandwidth is formed around 813MHz due
  • FIG. 8 A and FIG. 8B show yet another embodiment the internal antenna according to the present invention.
  • FIG. 8 A is a perspective view of the internal antenna seen from the upper side
  • FIG. 8B is a perspective view of the antenna seen from the lower side.
  • the internal antenna according to the present invention is a perspective view of the internal antenna seen from the upper side
  • FIG. 8B is a perspective view of the antenna seen from the lower side.
  • the antenna to the present embodiment includes a ground connection conducting plate 350 for connecting a second conducting plate 320 to a ground conductor 300. Also, the antenna
  • a feeding conductor plate 370 for feeding power in the lower position of the
  • a number of slits 327, 328, 302, and 304 are formed in the left side of a second
  • slits 342 and 344 are formed periodically in a first vertical conducting plate 340 to provide another transmission path, form another transmission line.
  • One slit 312 is formed in a first conducting plate 310. The zigzag path formed in the right side of the second conducting plate is connected to the first
  • the feeding conductor plate 370 is directly coupled to the internal circuit of the
  • FIG. 9 shows the internal antenna of FIGS. 8 A and FIG. 8B mounted on a printed
  • the antenna is installed such that upper edge of the antenna is displaced upwards from
  • FIG. 10 shows a standing- wave ratio pattern of the internal antenna of FIGS. 8 A
  • the horizontal axis indicates a frequency range [MHZ] and the vertical axis indicates a standing-wave ratio. It can be seen in the drawing that the
  • bandwidth of the lower frequency band is increased, compared with the embodiment of FIGS. 5 A and 5B, because of the transmission path formed in the left side of the second conducting plate 210 and the ground conductor 300.
  • the internal antenna according to the present invention is comprised of radiators made of metallic conducting plates only and does not employ any
  • the antenna may show
  • the antenna shows a wide bandwidth due to the introduction of the adjacent dual patches and the vertical patch.
  • the internal antennas may be used for cellular phones or the other kinds of portable terminals.

Landscapes

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

Abstract

L"invention concerne une antenne interne présentant une efficacité élevée de rayonnement et possédant une large gamme de largeurs de bande, tout en minimisant la perte de réflexion engendrée par un matériau diélectrique. Un conducteur de terre (100) permet de relier électriquement à la terre une carte de circuits imprimés d"un terminal portatif. Une première plaque conductrice (110) est disposée de manière à être parallèle au conducteur de terre (100). Des moyens d"alimentation (112) sont installés sous la première plaque conductrice (110), de manière à fournir un signal à partir d"un point d"alimentation du terminal vers la première plaque conductrice (110) et à fournir un signal à partir de la première plaque conductrice (110) vers le point d"alimentation. Une seconde plaque conductrice (120) est disposée de manière à être parallèle à la première plaque conductrice (110) et une plaque conductrice de connexion (130) connecte les première et seconde plaques (110, 120).
PCT/KR2001/001673 2000-10-05 2001-10-05 Antennes internes destinees a des terminaux portatifs et montage associe WO2002035652A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2000-0058615A KR100368939B1 (ko) 2000-10-05 2000-10-05 높은 복사효율과 광대역 특성을 갖는 내장형 안테나와 그실장방법
KR2000/58615 2000-10-05

Publications (1)

Publication Number Publication Date
WO2002035652A1 true WO2002035652A1 (fr) 2002-05-02

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2842951A1 (fr) * 2002-07-26 2004-01-30 Socapex Amphenol Antenne a plaque de faible epaisseur
WO2007143230A2 (fr) * 2006-05-17 2007-12-13 Sony Ericsson Mobile Communications Ab Antenne toutes bandes pour applications gsm, umts et wifi
US7342553B2 (en) 2002-07-15 2008-03-11 Fractus, S. A. Notched-fed antenna
US7403164B2 (en) 2002-12-22 2008-07-22 Fractus, S.A. Multi-band monopole antenna for a mobile communications device
US7423592B2 (en) 2004-01-30 2008-09-09 Fractus, S.A. Multi-band monopole antennas for mobile communications devices
US7471246B2 (en) 2002-07-15 2008-12-30 Fractus, S.A. Antenna with one or more holes
EP2028720A1 (fr) * 2007-08-23 2009-02-25 Research In Motion Limited Antenne multibande et méthodologie associée pour dispositif de communication radio
US7579992B2 (en) 2004-06-26 2009-08-25 E.M.W. Antenna Co., Ltd. Multi-band built-in antenna for independently adjusting resonant frequencies and method for adjusting resonant frequencies
US7719470B2 (en) 2007-08-23 2010-05-18 Research In Motion Limited Multi-band antenna, and associated methodology, for a radio communication device
US7872605B2 (en) 2005-03-15 2011-01-18 Fractus, S.A. Slotted ground-plane used as a slot antenna or used for a PIFA antenna
US7932863B2 (en) 2004-12-30 2011-04-26 Fractus, S.A. Shaped ground plane for radio apparatus
US8941541B2 (en) 1999-09-20 2015-01-27 Fractus, S.A. Multilevel antennae
US9099773B2 (en) 2006-07-18 2015-08-04 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US9331382B2 (en) 2000-01-19 2016-05-03 Fractus, S.A. Space-filling miniature antennas
US9755314B2 (en) 2001-10-16 2017-09-05 Fractus S.A. Loaded antenna
WO2020009542A1 (fr) 2018-07-06 2020-01-09 Samsung Electronics Co., Ltd. Structure d'antenne ayant plusieurs fentes

Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
WO2004038859A1 (fr) * 2002-10-22 2004-05-06 Sk Telecom Co., Ltd. Antenne multibande a accord independant chargee par une ligne en meandres
KR100450878B1 (ko) 2003-06-13 2004-10-13 주식회사 에이스테크놀로지 중앙 급전 구조를 갖는 이동통신 단말기 내장형 안테나
KR100707106B1 (ko) * 2004-11-09 2007-04-13 주식회사 이엠따블유안테나 단일패스 다중대역 내장형안테나
KR20190122522A (ko) 2018-04-20 2019-10-30 심광선 유골함의 꽃장식 장치

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JPS6058704A (ja) * 1983-09-09 1985-04-04 Nippon Telegr & Teleph Corp <Ntt> 複共振形逆ｆアンテナ
WO1996027219A1 (fr) * 1995-02-27 1996-09-06 The Chinese University Of Hong Kong Antenne en f-inverse a serpentement
WO1999028990A1 (fr) * 1997-12-01 1999-06-10 Kabushiki Kaisha Toshiba Antenne de type f inversee pour frequences multiples

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FI110395B (fi) * 1997-03-25 2003-01-15 Nokia Corp Oikosuljetuilla mikroliuskoilla toteutettu laajakaista-antenni
US6114996A (en) * 1997-03-31 2000-09-05 Qualcomm Incorporated Increased bandwidth patch antenna

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS6058704A (ja) * 1983-09-09 1985-04-04 Nippon Telegr & Teleph Corp <Ntt> 複共振形逆ｆアンテナ
WO1996027219A1 (fr) * 1995-02-27 1996-09-06 The Chinese University Of Hong Kong Antenne en f-inverse a serpentement
WO1999028990A1 (fr) * 1997-12-01 1999-06-10 Kabushiki Kaisha Toshiba Antenne de type f inversee pour frequences multiples

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8941541B2 (en) 1999-09-20 2015-01-27 Fractus, S.A. Multilevel antennae
US10056682B2 (en) 1999-09-20 2018-08-21 Fractus, S.A. Multilevel antennae
US9761934B2 (en) 1999-09-20 2017-09-12 Fractus, S.A. Multilevel antennae
US9362617B2 (en) 1999-09-20 2016-06-07 Fractus, S.A. Multilevel antennae
US9240632B2 (en) 1999-09-20 2016-01-19 Fractus, S.A. Multilevel antennae
US9054421B2 (en) 1999-09-20 2015-06-09 Fractus, S.A. Multilevel antennae
US9000985B2 (en) 1999-09-20 2015-04-07 Fractus, S.A. Multilevel antennae
US8976069B2 (en) 1999-09-20 2015-03-10 Fractus, S.A. Multilevel antennae
US10355346B2 (en) 2000-01-19 2019-07-16 Fractus, S.A. Space-filling miniature antennas
US9331382B2 (en) 2000-01-19 2016-05-03 Fractus, S.A. Space-filling miniature antennas
US9755314B2 (en) 2001-10-16 2017-09-05 Fractus S.A. Loaded antenna
US7471246B2 (en) 2002-07-15 2008-12-30 Fractus, S.A. Antenna with one or more holes
US7907092B2 (en) 2002-07-15 2011-03-15 Fractus, S.A. Antenna with one or more holes
US7342553B2 (en) 2002-07-15 2008-03-11 Fractus, S. A. Notched-fed antenna
WO2004012298A2 (fr) * 2002-07-26 2004-02-05 Amphenol Socapex Antenne a plaque de faible epaisseur
WO2004012298A3 (fr) * 2002-07-26 2004-04-08 Socapex Amphenol Antenne a plaque de faible epaisseur
FR2842951A1 (fr) * 2002-07-26 2004-01-30 Socapex Amphenol Antenne a plaque de faible epaisseur
US8456365B2 (en) 2002-12-22 2013-06-04 Fractus, S.A. Multi-band monopole antennas for mobile communications devices
US7403164B2 (en) 2002-12-22 2008-07-22 Fractus, S.A. Multi-band monopole antenna for a mobile communications device
US7411556B2 (en) 2002-12-22 2008-08-12 Fractus, S.A. Multi-band monopole antenna for a mobile communications device
US7423592B2 (en) 2004-01-30 2008-09-09 Fractus, S.A. Multi-band monopole antennas for mobile communications devices
US7579992B2 (en) 2004-06-26 2009-08-25 E.M.W. Antenna Co., Ltd. Multi-band built-in antenna for independently adjusting resonant frequencies and method for adjusting resonant frequencies
US7932863B2 (en) 2004-12-30 2011-04-26 Fractus, S.A. Shaped ground plane for radio apparatus
US8593360B2 (en) 2005-03-15 2013-11-26 Fractus, S.A. Slotted ground-plane used as a slot antenna or used for a PIFA antenna
US8111199B2 (en) 2005-03-15 2012-02-07 Fractus, S.A. Slotted ground-plane used as a slot antenna or used for a PIFA antenna
US7872605B2 (en) 2005-03-15 2011-01-18 Fractus, S.A. Slotted ground-plane used as a slot antenna or used for a PIFA antenna
US7432860B2 (en) 2006-05-17 2008-10-07 Sony Ericsson Mobile Communications Ab Multi-band antenna for GSM, UMTS, and WiFi applications
WO2007143230A3 (fr) * 2006-05-17 2008-03-27 Sony Ericsson Mobile Comm Ab Antenne toutes bandes pour applications gsm, umts et wifi
WO2007143230A2 (fr) * 2006-05-17 2007-12-13 Sony Ericsson Mobile Communications Ab Antenne toutes bandes pour applications gsm, umts et wifi
US11031677B2 (en) 2006-07-18 2021-06-08 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US11735810B2 (en) 2006-07-18 2023-08-22 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US9899727B2 (en) 2006-07-18 2018-02-20 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US9099773B2 (en) 2006-07-18 2015-08-04 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US11349200B2 (en) 2006-07-18 2022-05-31 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US10644380B2 (en) 2006-07-18 2020-05-05 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US7719470B2 (en) 2007-08-23 2010-05-18 Research In Motion Limited Multi-band antenna, and associated methodology, for a radio communication device
EP2028720A1 (fr) * 2007-08-23 2009-02-25 Research In Motion Limited Antenne multibande et méthodologie associée pour dispositif de communication radio
EP3807951A4 (fr) * 2018-07-06 2021-08-18 Samsung Electronics Co., Ltd. Structure d'antenne ayant plusieurs fentes
US11145992B2 (en) 2018-07-06 2021-10-12 Samsung Electronics Co., Ltd. Antenna structure having plural slits arranged at predetermined interval on conductive substrate and another slit extending to space between slits, and electronic device including antenna structure
WO2020009542A1 (fr) 2018-07-06 2020-01-09 Samsung Electronics Co., Ltd. Structure d'antenne ayant plusieurs fentes

Also Published As

Publication number Publication date
KR20020027083A (ko) 2002-04-13
KR100368939B1 (ko) 2003-01-24

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