WO2006123419A1 - Dispositif d'antenne et dispositif terminal de communication mobile - Google Patents

Dispositif d'antenne et dispositif terminal de communication mobile Download PDF

Info

Publication number
WO2006123419A1
WO2006123419A1 PCT/JP2005/009242 JP2005009242W WO2006123419A1 WO 2006123419 A1 WO2006123419 A1 WO 2006123419A1 JP 2005009242 W JP2005009242 W JP 2005009242W WO 2006123419 A1 WO2006123419 A1 WO 2006123419A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
resonance frequency
switching circuit
frequency
resonance
Prior art date
Application number
PCT/JP2005/009242
Other languages
English (en)
Japanese (ja)
Inventor
Yukinari Takahashi
Kenichi Satou
Satoshi Watanabe
Original Assignee
Matsushita Electric Industrial Co., 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 Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to PCT/JP2005/009242 priority Critical patent/WO2006123419A1/fr
Publication of WO2006123419A1 publication Critical patent/WO2006123419A1/fr

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
    • 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
    • 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
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
    • 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 to an antenna device that is used in a mobile communication terminal device or the like and can be switched to a wideband resonance frequency, and in particular, two resonance frequencies (which are divided into two or more and different from each other).
  • the built-in antenna element having the ⁇ first resonance frequency '' and the ⁇ second resonance frequency '' for example, the second resonance frequency of the first and second resonance frequencies is different from this.
  • the means for switching to the “third resonance frequency” or the first and second resonance frequencies can be switched to the “fourth and fifth resonance frequencies” different from the first to third resonance frequencies.
  • a multi-channel device having means for switching only the fifth resonance frequency to the “sixth resonance frequency” different from the first to fifth resonance frequencies while the fourth resonance frequency remains fixed when the resonance frequency is switched to this resonance frequency.
  • Band antenna was provided It related to the mobile communication terminal unit comprising the antenna device of the antenna device and the child.
  • a resonant frequency switching type antenna used for a mobile phone includes a feed pin 103 and a feed cable 104 connected to a feed point 102 of a radiation plate 101 as shown in FIGS. 10 (A) and (B).
  • a switching matching circuit 105 are known.
  • the power supply voltage Vcc is applied to the series arm consisting of the switching diode CR1 and the parallel capacitor C1
  • the bias control voltage is applied to the parallel arm powered by the switching diode CR2 and the series capacitor C2.
  • Vcont is applied and the control voltage is turned on and off to match the first and second frequency bands (see, for example, Patent Document 1).
  • GSM Global System for Mobile
  • An object of the present invention is to provide an antenna device suitable for a mobile phone or the like and a mobile communication terminal device including the antenna device.
  • Patent Document 1 Japanese Patent Laid-Open No. 11-122037 (Page 4, FIGS. 1 and 2)
  • the antenna device of the present invention is switched to a broadband resonance frequency in which a built-in antenna element having a first resonance frequency and a second resonance frequency is provided that is divided into two or more by reactance elements.
  • a possible antenna device wherein the first resonance frequency remains fixed and only the second resonance frequency is different from the first and second resonance frequencies by controlling impedance. It has a configuration with a switching circuit that switches to the resonant frequency. With this configuration, by using the switching circuit, the impedance can be controlled, and only the second resonance frequency can be switched to the third resonance frequency while the first resonance frequency is fixed. It becomes possible to respond.
  • the antenna device of the present invention is a wideband including a built-in antenna element having first to sixth resonance frequencies divided by a reactance element, and a plurality of power supply portions of the antenna element.
  • the antenna device is switched to the resonance frequency of the antenna element, and is disposed at the end of the antenna element, and the power feeding unit switching circuit that switches the power feeding unit that feeds power to the antenna element, and the power feeding unit is switched by the power feeding unit switching circuit to resonate.
  • the frequency is switched from the first and second resonance frequencies to the fourth and fifth resonance frequencies, the impedance is controlled, and only the fifth resonance frequency is changed while the fourth resonance frequency is fixed. It has a configuration that has a switching circuit that switches to 6 resonance frequencies.
  • the power feeding unit is changed using a power feeding unit switching circuit arranged at the end of the tena element, and the first and second resonance frequencies are switched to the fourth and fifth resonance frequencies.
  • the impedance can be controlled, the fourth resonance frequency can be fixed, and only the fifth resonance frequency can be switched to the sixth resonance frequency. It is possible to cope with a wide frequency range.
  • the switching circuit includes a PIN (P Intrinsic N) diode, a FET (Field Effect Transistor) switch, a MEMS (Micro Electro Mechanical Systems) switch, and a SPDT (Single Pole Double Throw). It has either a switch, a GaAs (gallium arsenide) switch, or a solid-state switch. With such a configuration, a switching circuit can be realized using versatile electronic components.
  • PIN P Intrinsic N diode
  • FET Field Effect Transistor
  • MEMS Micro Electro Mechanical Systems
  • SPDT Single Pole Double Throw
  • the antenna element is configured by a diversity antenna. With such a configuration, the antenna element can be controlled in the optimum directivity direction.
  • a mobile communication terminal device of the present invention has a configuration including any one of the antenna devices described above. Therefore, when such an antenna device is used for, for example, a mobile phone, a mobile phone having a wide band and good antenna directivity can be realized. Further, by using such an antenna device for a mobile communication terminal device, the band frequency and antenna directivity of the mobile communication terminal device can be improved. Furthermore, if such a mobile communication terminal apparatus is used for wireless communication with a base station apparatus, broadband and antenna directivity communication can be performed, which is extremely convenient for users. A wireless communication system can be provided.
  • FIG. 1 is a perspective view showing an external appearance of a mobile phone according to a first embodiment of the present invention.
  • FIG. 2 (A) is a detailed configuration block diagram of an antenna portion of the antenna device provided in the mobile phone according to the first embodiment of the present invention, and (B) is a detailed circuit of the switching circuit in (A).
  • FIG. 3 is an explanatory diagram showing a configuration of an L-shaped and inverted L-shaped antenna of the antenna device according to the first embodiment of the present invention.
  • FIG. 4 is a block diagram showing the configuration of the antenna device according to the first embodiment of the present invention.
  • FIG. 5 (A) to (C) are IL—PIL applied to the antenna device of the first embodiment of the present invention.
  • FIG. 6 Diagram showing an example of VSWR characteristics of IL PILA shown in Fig. 4.
  • FIG. 7 (A) is a VSWR characteristic diagram of the antenna device when the switching circuit according to the present invention is not operated, and (B) is a VSWR characteristic diagram of the antenna device when the switching circuit is operated.
  • FIG. 8 (A) is a detailed block diagram of the antenna portion of the antenna device provided in the mobile phone according to the second embodiment of the present invention, and (B) is a detailed circuit of the switching circuit in (A).
  • FIG. 9 (A) is a VSWR characteristic diagram of the antenna device when the switching circuit according to the second embodiment of the present invention is not operated, and (B) is a VSWR characteristic of the antenna device when the switching circuit is operated.
  • FIG. 10 (A) is a perspective view showing the structure of a conventional mobile phone antenna
  • FIG. 10 (B) is a circuit diagram showing the configuration.
  • 10 is a mobile phone (terminal device for mobile communication)
  • 21 is the LCD screen
  • 40A and 40B are built-in antennas (antenna devices)
  • 41 is an antenna switching control unit
  • 4a and 4d are power supply units
  • 5a and 5b are power supply switching circuits
  • FIG. 1 shows a mobile phone (mobile communication terminal device) 10 provided with the antenna device 4 of the present invention.
  • the mobile phone 10 includes a main body 1 having a key operation unit, a liquid crystal screen, and the like.
  • the flip part 2 having 21 has a foldable casing structure that can be opened and closed by a hinge 3 having a rotation axis.
  • the antenna device 4 of the cellular phone includes a switching circuit 4c in addition to the built-in antenna 40, the power feeding unit 4a, the matching circuit 4b, and the like.
  • the built-in antenna 40 is an L-shaped or inverted L-shaped antenna (IL PILA, which will be described later), and is located near the tip side of the main body 1 (this is referred to as “built-in antenna 40A”) and the flip section 2. It is provided on both sides of the base end (this is called “built-in antenna 40B”), but it may be installed at any one of these positions. In the present embodiment, description will be given by taking the built-in antenna 40A provided on the distal end side of the main body 1 as an example. The built-in antenna has the same configuration regardless of where it is installed.
  • the built-in antenna 40A includes an antenna element 402 ("first resonance") divided into two (or three or more) by a reactance element 401, as shown in FIGS. Frequency fl ”; about 880 to 960 MHz) and an antenna element 403 (“ second resonance frequency f2 ”; about 1710 to 190 MHz) and a ground plane 404 serving as a ground. That is, as shown in FIG. 3, the built-in antenna 40A is divided into two parts by a reactance element 401, and has a first resonance frequency fl and a second resonance frequency f2. The impedance is controlled by using a switching circuit 4c (see Fig. 2 (B)) arranged in the vicinity of the feeding section 4a of the built-in antenna 40A.
  • the reactance element 401 is provided in a slit (not shown) formed near the center of the two antenna elements 402 and 4003.
  • switching circuit 4c is connected to matching circuit 4b arranged in the vicinity of feeding portion 4a of built-in antenna 40A, and controls matching impedance. That is, the switching circuit 4c has a fixed frequency (for example, a range of about 880 MHz to 960 MHz, which is the first resonance frequency fl), and a second resonance frequency f2 (a range of about 1710 MHz to 1990 MHz). Is matched to a specific frequency different from this (for example, a range of about 1920 MHz to 2170 MHz, which is the “third resonance frequency f 3”).
  • the switching circuit 4c is composed of a PIN diode, a FET switch, a MEMS switch, a solid state switch, and the like.
  • the switching circuit 4c can appropriately switch only the second resonance frequency f2 to the third resonance frequency f3, an antenna device corresponding to a wideband multiband can be realized. That is, in the present embodiment, by controlling the impedance using the switching circuit 4c, the second resonance frequency f2 can be switched to the third resonance frequency f3 while the first resonance frequency fl is fixed. .
  • the switching circuit 4 c is controlled by an antenna switching control unit 41, and the antenna switching control unit 41 is controlled by a main control unit 42.
  • the main control unit 42 performs control at the time of radio unit transmission / reception.
  • the output is connected to the input of a transmission BPF (Band Pass Filter) 43.
  • Send BP The output of F43 is connected to the input of the power amplifier 44, and the output of the power amplifier 44 is connected to the input of the isolator 45.
  • This isolator 45 constitutes a DC input variation, and has functions such as stable operation of the amplifier and prevention of intermodulation, and each antenna for transmission and reception that requires output is provided by a single antenna. It is connected to duplexer 46, which is a component for sharing.
  • the output of the duplexer 46 is connected to the matching circuit 4b.
  • the input of the duplexer 47 is connected to the output of the matching circuit 4b, and the output of the duplexer 47 is connected to a reception LNA (Low Noise Amplifier) 48.
  • This receiving LNA 48 is connected to the input of the receiving BPF 49.
  • the output of the reception BPF4 9 is connected to the input of the main control unit 42.
  • the antenna switching control unit 41 via the reception signal level detection circuit 42A of the main control unit 42 controls the switching circuit 4c described above. The operation of is controlled. That is, the reception signal level detection circuit 42A in the control unit 42 selects a high frequency band of the reception electric field level, and the antenna switching control unit 41 selects and switches the band. In this embodiment, a high-performance antenna system that can maintain stable communication quality can be provided by configuring in this way.
  • FIG. 5 is a schematic configuration diagram of IL-PILA (described later) applied to the present invention.
  • FIG. 6 is a diagram showing an example of the VSWR characteristic of IL-PILA shown in FIG.
  • reactance elements 401 are divided and loaded on linear or plate-like antenna elements 402 and 403 having an L-shape or an inverted L-shape.
  • each of the divided antenna elements 402 and 403 is a wideband multi-frequency antenna that resonates in two or more frequency bands (that is, the first resonance frequency fl and the second resonance frequency f2). Realized.
  • Such a multi-frequency antenna is called an inductance-loaded plate-type inverted L antenna (commonly known as IL-PILA).
  • the IL PILA constituting the antenna elements 402, 403 is divided into two elements (that is, high-frequency element elements).
  • An inductance component 4C is loaded between 4A and the low-frequency element 4B).
  • high lap In the wave number band for example, about 1710 MHz to 1990 MHz, which is the second resonance frequency f2
  • the portion after loading the inductance component 4C is regarded as open.
  • the portion after the inductance component 4C is loaded also flows so that current flows. Determine the constant.
  • the inductance component 4C uses a characteristic of flowing a low-frequency current but not a high-frequency current.
  • the high-frequency band as shown in Fig. 5 (B)
  • only the high-frequency element element 4A is configured.
  • the low frequency band as shown in FIG. 5C, a configuration is realized in which the high frequency element element 4A and the low frequency element element 4B are connected in series.
  • the antenna elements 412 and 4 13 can achieve a VSWR characteristic as shown in Fig. 6 and realize a triple-band dual-resonance antenna by adopting such an IL-PILA configuration.
  • FIG. 7 shows the case where the switching circuit 4c arranged in the vicinity of the feeding portion 4a of the antenna elements 402 and 403 is not operated in the antenna configuration shown in FIG. 2, and the VSW R characteristics when the switching circuit 4c is operated. It is a figure which shows an example. 7A shows a case where the switching circuit 4c is not operated, and FIG. 7B shows a case where the switching circuit 4c is operated. In both cases, the horizontal axis represents frequency, and the vertical axis represents VSWR (Voltage Standing Wave Ratio).
  • VSWR Voltage Standing Wave Ratio
  • Fig. 7 show an example of VSWR characteristics at 880MHz to 2170MHz.
  • the switching circuit 4c is not operated.
  • the first resonance frequency f1 from about 880MHz to 960MHz appears first, and then from about 1710MHz to 1990MHz.
  • the second resonance frequency f2 appears.
  • the impedance is controlled by operating the switching circuit 4c arranged in the vicinity of the feeding part 4a of the antenna elements 402 and 403, as shown in FIG.
  • the resonance frequency up to (resonance frequency fl) is still fixed, and only the resonance frequency up to about 1710 MHz to l 990 MHz (second resonance frequency f2) is about 1920 MHz to 2170 MHz (third resonance frequency f3). It is switched to the resonance frequency. As a result, a multi-frequency antenna that resonates in three frequency bands fl to f3 can be realized.
  • FIG. 8 shows an antenna device provided in a mobile communication terminal device according to the second embodiment of the present invention.
  • the antenna device of the present embodiment is an antenna element.
  • Power supply unit switching circuits 5a and 5b for changing the power supply state are provided at each end of 402 and 403, respectively.
  • the power feeding unit switching circuits 5a and 5b switch the power feeding state to the antenna elements 402 and 403 to one of them.
  • the antenna element 402 can be changed from the first and second resonance frequencies to the fourth and fifth resonance frequencies (specifically for any co-frequency). It is configured to switch to an appropriate frequency value (to be described later).
  • the switching circuit 4c controls the impedance, so that the fourth resonance frequency f4 remains fixed and only the fifth resonance frequency f5 is changed to the sixth resonance frequency f6 (also in this case, the frequency A multi-frequency antenna that switches the value to (described later) is realized.
  • the “fourth resonance frequency f4” is in the range of about 830 to 960 MHz
  • the “fifth resonance frequency f5” is in the range of about 1710 to 1880 MHz
  • the “sixth resonance frequency f6” is in the range of about 1850 to 1990 MHz. is there.
  • FIG. 9 shows a case where, in the antenna configuration shown in FIG. 8, for example, the feeder switching circuit 5a disposed at the end of the antenna element 402 is operated to switch the feeder 4a to the feeder 4d.
  • FIG. 6 is a diagram showing an example of VSWR characteristics when the switching circuit 4c arranged in the vicinity of the power feeding unit 4d of the antenna element 403 is not operated and when it is operated.
  • 9A shows the case where the switching circuit 4c is not operated
  • FIG. 9B shows the case where the switching circuit 4c is operated.
  • the horizontal axis represents frequency and the vertical axis represents VSWR.
  • FIG. 9 show an example of VSWR characteristics in the range of 830MHz to 1990MHz.
  • VSWR is 3 or less, what was the first and second resonance frequencies 1S
  • switching circuit 4c in Fig. 9 (A) is not operated, first, about 830 MHz to 960 MHz (fourth resonance frequency f4 ) Appears, followed by a resonance frequency of about 1710 MHz to 1880 MHz (fifth resonance frequency f 5).
  • the conventional antenna device occupies a large occupied volume, impairs the design of a mobile phone or the like, or it is difficult to mount electrical components.
  • the antenna device of the present invention solves the above-mentioned conventional problems, and can provide a built-in small antenna suitable for a mobile phone that can be used in a wide band compatible with a multi-mode system. Furthermore, antenna directivity can be further improved by making the antenna device a diversity antenna configuration.
  • the antenna device of the present invention can be used not only for a mobile phone but also for any mobile communication terminal device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Transceivers (AREA)

Abstract

L'invention traite du maintien des fréquences de résonance d'une large bande utilisable dans un système multimode, tout en permettant une réception en diversité. Un circuit de commutation (4c) situé au voisinage d’une partie d'alimentation (4a) d'un élément d'antenne (402) est utilisé pour commander l'impédance et entretenir une première fréquence de résonance, tout en ne commutant qu'une seconde fréquence de résonance vers une troisième fréquence de résonance. Lorsqu'un circuit de commutation de partie d'alimentation (5b) est activé pour effectuer une commutation depuis la partie d'alimentation vers une partie d'alimentation (4d) afin d'effectuer une commutation des première et seconde fréquences de résonance vers des quatrième et cinquième fréquences de résonance, le circuit de commutation (4c) peut être utilisé pour commander l'impédance toute en ne commutant qu'une cinquième fréquence de résonance vers une sixième fréquence de résonance.
PCT/JP2005/009242 2005-05-20 2005-05-20 Dispositif d'antenne et dispositif terminal de communication mobile WO2006123419A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/009242 WO2006123419A1 (fr) 2005-05-20 2005-05-20 Dispositif d'antenne et dispositif terminal de communication mobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/009242 WO2006123419A1 (fr) 2005-05-20 2005-05-20 Dispositif d'antenne et dispositif terminal de communication mobile

Publications (1)

Publication Number Publication Date
WO2006123419A1 true WO2006123419A1 (fr) 2006-11-23

Family

ID=37431003

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/009242 WO2006123419A1 (fr) 2005-05-20 2005-05-20 Dispositif d'antenne et dispositif terminal de communication mobile

Country Status (1)

Country Link
WO (1) WO2006123419A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013140758A1 (fr) * 2012-03-21 2013-09-26 日本電気株式会社 Dispositif d'antenne
EP2220871A4 (fr) * 2007-12-14 2018-01-17 Microsoft Technology Licensing, LLC Dispositif de calcul informatisé avec antenne configurable

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002076750A (ja) * 2000-08-24 2002-03-15 Murata Mfg Co Ltd アンテナ装置およびそれを備えた無線機
JP2003179426A (ja) * 2001-12-13 2003-06-27 Matsushita Electric Ind Co Ltd アンテナ装置及び携帯無線装置
JP3469880B2 (ja) * 2001-03-05 2003-11-25 ソニー株式会社 アンテナ装置
JP2004040596A (ja) * 2002-07-05 2004-02-05 Matsushita Electric Ind Co Ltd 携帯無線機用多周波アンテナ
JP2005150937A (ja) * 2003-11-12 2005-06-09 Murata Mfg Co Ltd アンテナ構造およびそれを備えた通信機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002076750A (ja) * 2000-08-24 2002-03-15 Murata Mfg Co Ltd アンテナ装置およびそれを備えた無線機
JP3469880B2 (ja) * 2001-03-05 2003-11-25 ソニー株式会社 アンテナ装置
JP2003179426A (ja) * 2001-12-13 2003-06-27 Matsushita Electric Ind Co Ltd アンテナ装置及び携帯無線装置
JP2004040596A (ja) * 2002-07-05 2004-02-05 Matsushita Electric Ind Co Ltd 携帯無線機用多周波アンテナ
JP2005150937A (ja) * 2003-11-12 2005-06-09 Murata Mfg Co Ltd アンテナ構造およびそれを備えた通信機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2220871A4 (fr) * 2007-12-14 2018-01-17 Microsoft Technology Licensing, LLC Dispositif de calcul informatisé avec antenne configurable
WO2013140758A1 (fr) * 2012-03-21 2013-09-26 日本電気株式会社 Dispositif d'antenne

Similar Documents

Publication Publication Date Title
US8674889B2 (en) Tunable antenna arrangement
JP4302738B2 (ja) 無線端末における、またはそれに関する改良
US7616158B2 (en) Multi mode antenna system
US7804457B2 (en) Multi-band antenna with inductor and/or capacitor
US6693594B2 (en) Optimal use of an electrically tunable multiband planar antenna
KR101090274B1 (ko) 안테나 디바이스 및 그 안테나 디바이스를 포함하는 휴대용무선 통신 디바이스
US8780007B2 (en) Handheld device and planar antenna thereof
WO2011024280A1 (fr) Dispositif d’antenne et dispositif de communication
JP4704287B2 (ja) アンテナ装置および携帯無線機
EP2491613B1 (fr) Antenne reconfigurable
WO2005109569A1 (fr) Antenne multibande, substrat de circuit et dispositif de communication
EP2038962A1 (fr) Système d'antenne compacte, multibande et multimode
WO2006098089A1 (fr) Ensemble d'antenne et appareil de communication radio employant celui-ci
JPWO2009019782A1 (ja) アンテナ装置および携帯無線装置
WO2011034197A1 (fr) Antenne, dispositif de communication sans fil et procédé de conception d'antenne
JP2009538037A (ja) アンテナ・デバイスおよびそのようなアンテナ・デバイスを備える携帯型無線通信デバイス
JP2001136019A (ja) 逆ｆアンテナおよびそれを用いた無線装置
KR20070051292A (ko) 안테나 장치 및 그러한 안테나 장치를 포함하는 휴대무선통신 장치
CN103026548A (zh) 便携式无线机
WO2013007868A1 (fr) Agencement d'antenne cadre
WO2006030708A1 (fr) Antenne à fréquence variable et appareil de communication sans fil
US7928914B2 (en) Multi-frequency conductive-strip antenna system
JP2008294635A (ja) アンテナ装置及び携帯無線機
WO2006123419A1 (fr) Dispositif d'antenne et dispositif terminal de communication mobile
WO2009081512A1 (fr) Terminal de communication sans fil

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

NENP Non-entry into the national phase

Ref country code: RU

WWW Wipo information: withdrawn in national office

Country of ref document: RU

122 Ep: pct application non-entry in european phase

Ref document number: 05741567

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP