WO2010095803A1 - Antenne de sélection de bande - Google Patents

Antenne de sélection de bande Download PDF

Info

Publication number
WO2010095803A1
WO2010095803A1 PCT/KR2009/006958 KR2009006958W WO2010095803A1 WO 2010095803 A1 WO2010095803 A1 WO 2010095803A1 KR 2009006958 W KR2009006958 W KR 2009006958W WO 2010095803 A1 WO2010095803 A1 WO 2010095803A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
band
switch
radiator
antenna radiator
Prior art date
Application number
PCT/KR2009/006958
Other languages
English (en)
Korean (ko)
Inventor
김정
하지훈
Original Assignee
주식회사 네오펄스
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 주식회사 네오펄스 filed Critical 주식회사 네오펄스
Priority to CN2009801588662A priority Critical patent/CN102414917A/zh
Priority to JP2011550996A priority patent/JP2012518937A/ja
Publication of WO2010095803A1 publication Critical patent/WO2010095803A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • 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
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
    • H01Q15/002—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective said selective devices being reconfigurable or tunable, e.g. using switches or diodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • 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
    • 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 a band selection antenna in which a characteristic of an antenna applied to a portable product is changed through switch selection so that a desired band can be selected without gain loss.
  • the basic antenna structure is designed to support a multi-band having a relatively large band difference such as a low frequency band and a high frequency band.
  • a multi-band having a relatively large band difference such as a low frequency band and a high frequency band.
  • GSM Global System for Mobile Communications
  • FIG. 1 A method of selecting a band used by changing the characteristics of the antenna by varying the characteristics of the antenna, and a method of shifting the band by adjusting a device characteristic of the matching unit after applying a matching unit that can adjust the characteristics of the antenna as illustrated in FIG. 2. This is representative.
  • FIG. 1 shows a structure for selecting a band by selectively coupling extension lines 3 and 4 having different sizes from a transmission line connected to a part of the planar antenna 1 through the switch 2.
  • This structure is difficult to be applied to a portable antenna that is limited in size and limited in selectable wavelengths because the space required for such a configuration is increased because the extension lines to be substantially operated as an antenna must be configured according to the selection band.
  • FIG. 2 generally includes a matching unit between a power supply unit and a communication unit of an antenna in a simple manner for band shifting, and operates in a manner of changing a characteristic of a device constituting the matching unit.
  • the wavelength length compensated by the matching unit is a portion where practical radiation is impossible, the lower the shift, the lower the gain, so that it is difficult to obtain an active state gain that is applicable to an actual product.
  • Such a high gain band is basically a small antenna that supports multiple bands. There is a demand for an antenna that can be selected.
  • the present invention applies a plurality of ground selection switches to the antenna radiator and selects and manipulates the band selection antenna to select a desired band while maintaining the gain only by changing the electrical characteristics by the switch operation, not the application of the selective radiator. Its purpose is to provide.
  • the present invention is to operate at least one switch to selectively connect the ground and the plurality of areas of the planar inverted-F antenna designed to correspond to the multi-band at the same time fixed some of the band of the plurality of basic design bands and different bands only It is an object of the present invention to provide a band selection antenna that can flexibly cope with a case where a multi-band service is required.
  • an object of the present invention is to provide a band selection antenna having a high degree of design freedom by being able to apply a switch that varies the electrical characteristics of the planar inverted F antenna to various positions such as the top, bottom, side of the antenna or inside the carrier. It is done.
  • the present invention can be applied not only to planar inverted F antennas but also to modified planar antennas such as dual planar inverted F antennas, while accommodating the advantages of existing antennas such as multiband support and bandwidth expansion by coupling characteristics. It is an object of the present invention to provide a band selection antenna for effectively selecting the antenna.
  • the band selection antenna comprises a planar antenna radiator having a pattern for corresponding to a plurality of bands including a low frequency band region and a high frequency band region; A feed line connected to the antenna radiator; A plurality of switches selectively connecting the plurality of areas of the antenna radiator and the ground according to an external control signal; And a control unit for controlling the switches, wherein the control unit operates a switch connected to an antenna radiator in a corresponding low frequency band region for low frequency band shifting of an antenna operating frequency full band shifting or an antenna operating frequency band, and a high frequency band of operating frequency bands. For shifting, a switch connected to an antenna radiator in a corresponding high frequency band is operated.
  • the plurality of areas of the antenna radiator to which the switch is connected are areas in which resonance occurs due to a distance relationship with an opening point of the antenna pattern with respect to the feed line.
  • It may further comprise at least one basic ground connected to a portion of the antenna radiator and the ground.
  • An LC element having individual characteristics may be added to the plurality of switches to improve characteristics, and the switches may be operated in combination.
  • the planar antenna radiator may have a dual inverted-F antenna configuration, further comprising an antenna radiator electrically spaced from the feed line and acting as a coupling antenna.
  • the switch may be disposed on the same plane as the antenna radiator or may be formed at a side or a bottom of the carrier.
  • the band select antenna is a band selectable planar antenna formed on a substrate configured with a ground and a feed line, a planar antenna radiator having a pattern for corresponding to one or more bands;
  • a carrier for supporting the antenna radiator apart from the substrate;
  • a feeding unit connecting the antenna radiator and a feeding line on the substrate;
  • a plurality of switch units for selectively connecting a plurality of areas of the antenna radiator and ground formed on the substrate according to an external control signal;
  • a control unit for controlling operations of the plurality of switch units, wherein the control unit is configured to receive band change information by a hand effect, a head effect or a side effect and operate the switch unit in a predetermined corresponding combination.
  • the switch unit may be disposed on at least one of the top, side, bottom, inside, and the substrate of the carrier, and when connected to the antenna radiator, the LC element unit positioned between the antenna radiator and the ground to compensate for noise and distortion It further comprises.
  • the switch unit may be configured as one of a HEMT device, a pin diode, and a FET, thereby enabling miniaturization.
  • the antenna radiator may further include a coupling radiator electrically isolated from the feed part.
  • a band select antenna includes a monopole antenna radiator for corresponding to one or more bands; A feeder configured under the monopole antenna radiator; And a plurality of switches selectively connecting the plurality of regions of the monopole antenna radiator to ground according to an external control signal.
  • a plurality of ground selection switches are applied to an antenna radiator and a selective operation may be performed to select a desired band while maintaining a gain only by changing electrical characteristics by a switch operation instead of applying a selective radiator. It has an effect.
  • the band selection antenna operates by combining one or more switches that selectively connect the ground and the plurality of regions of the planar inverted-F antenna designed to correspond to the multi-band. It is possible to flexibly cope with multi-band services when fixed and only some bands select different bands. For example, a terminal used in the 850 MHz band and the 1.8 GHz band may be used in the 900 MHz band and the 1.8 GHz band.
  • the band select antenna according to the embodiment of the present invention can increase the design freedom by allowing a switch that varies the electrical characteristics of the planar inverted-F antenna to be applied to various positions such as the top, bottom, side, inside of the carrier, and the substrate. It has an effect.
  • the band selection antenna according to the embodiment of the present invention has an effect of effectively compensating distortion such as hand effects, head effects, side effects, etc. according to actual use through band selection by a combination of switches.
  • the band selection antenna according to the embodiment of the present invention is also applicable to a modified planar antenna such as a dual planar inverted-F antenna, and thus, it is possible to select a desired band while accommodating the advantages of the existing antenna such as stable multi-band support by coupling characteristics.
  • the application has a wide range of effects.
  • the band selection antenna according to the embodiment of the present invention has an effect of effectively selecting a desired band by applying to a flat inverted F antenna as well as a monopole antenna.
  • 1 is an example of a conventional band selection antenna configuration.
  • 3 is an example of band shifting through matching stage adjustment.
  • FIG. 4 shows an example of a general planar inverted-F antenna (PIFA) configuration.
  • PIFA planar inverted-F antenna
  • FIG. 5 is an example of a planar inverted-F antenna configuration for application to an embodiment of the present invention.
  • FIG. 6 is a conceptual view showing a configuration according to an embodiment of the present invention.
  • 7 and 8 are examples of the antenna configuration according to an embodiment of the present invention.
  • 9 is an example of a switch having a plurality of connecting terminals.
  • FIG. 10 is a configuration example of a switch unit according to an embodiment of the present invention.
  • FIG. 11 is a configuration example according to another embodiment of the present invention.
  • FIG. 12 is a conceptual view of a configuration according to another embodiment of the present invention.
  • FIG. 14 illustrates an example of high frequency band selection shifting among dual bands according to an exemplary embodiment of the present invention.
  • 16 is a hand effect compensation example according to an embodiment of the present invention.
  • FIG. 4 illustrates a structure of a general planar inverted-F antenna, and as shown, an antenna radiator 10 having a planar shape is spaced apart from an upper surface of the ground plane 13, and the ground plane is located at one side of the antenna radiator 10. (13) and a ground plate 11 for electrically shorting the antenna radiator 10 are configured, and a feed section 12 is connected to the antenna radiator 10 as if it is a center portion of the letter F.
  • the resonant frequency of this planar inverted-F antenna is determined by the length L and width W of the antenna radiator 10 and the height h between the antenna radiator 10 and the ground plane 13.
  • the width S of the ground plate 11 also affects, but the effect is not so large.
  • the antenna for band selection may be designed only by finding a controllable object other than these values.
  • the feeder 12 serves as a reference for the electric field distribution of the antenna, and the electric field distribution varies according to the position of the ground plate 11.
  • the resonance point of the F antenna may be changed.
  • the inverted-F antenna basically has a transmission line shape
  • an equivalent transmission line model is applied to determine the current distribution.
  • the short-circuit load exists at a portion shorted by the ground plate 11 based on the feeder. In the open part there will be an open load. Therefore, the distance s1 from the antenna radiator 10 to the position where the ground plate 11 is connected with respect to the feed part 12 and the end of the opposite radiator 10 based on the feed part 12.
  • the position of the ground plate 11 and the position of the feed portion 12 is fixed for the resonance, it is designed to adjust the other deformable factors to achieve the desired performance.
  • FIG. 5 shows a planar inverted-F antenna configuration designed to correspond to multiple bands.
  • a low frequency band 31 and a high frequency band are formed on a carrier 20 disposed on a substrate 60 having a ground plane 61.
  • An antenna radiator 30 having a pattern for simultaneously corresponding the band 32 and a feed unit 40 connecting the reference region of the antenna radiator 30 and the feed line on the substrate 60 are configured.
  • a ground portion 50 connecting the ground plane 61 and the antenna radiator 30 to short-circuit the antenna radiator 30 is further configured.
  • FIG. 6 illustrates a conceptual configuration of an embodiment of the present invention in which a band selection function that provides various effects by modifying the multi band plane inverted-F antenna as shown in FIG. 5 is added.
  • the switches 61 to 64 are configured to connect the corresponding areas to ground individually in the plurality of areas of the antenna radiator 30.
  • the basic grounding part 50 is maintained, but the grounding part 50 may also be replaced by a form operated by a switch, and the basic grounding part 50 may be configured in plural.
  • the switches are individually operated by an external control signal and optionally ground the predetermined area of the corresponding antenna radiator 30.
  • the ground (short) area and the open area of the antenna radiator 30 defined based on the power supply unit 40 are changed by the new ground configuration, and the electric field distribution of the antenna radiator 30 changes.
  • the band used for the inverted-F antenna is variable.
  • the connection area of the antenna radiator 30 to which the switches 61 to 64 are connected in order to obtain sufficient gain and characteristics for the selected band of the inverted-F antenna is the position of the antenna feeder 40 and the antenna radiator ( According to the pattern of 30), it is desirable to determine the position where the desired resonance point can be obtained, that is, the position that allows the distance between the appropriate s1 and s2 as described above. (A plurality of switches can be selected. If the switch is configured to resonate by s1 and s2, the predetermined switch connection may not be a position for resonance)
  • the switches 61 to 64 basically operate only one of them to connect a specific antenna radiator 30 to the ground, but it may be used in combination if necessary.
  • FIG. 7 and 8 illustrate an arrangement of switches for the selective antenna radiator ground connection
  • FIG. 7 shows the switches 71 to 75 on the top of the carrier 20, that is, on the same plane as the antenna radiator 30. It is a case of configuration. Basically, since the switches 71 to 75 are for electric potential connection and not for the radiator connection, the switches 71 to 75 can handle a short circuit current flowing when the antenna is operated by a feed current provided through the feeder 40. Any level switch can be used at will. In the illustrated example, various small and controllable switches such as a HEMT (Heterojunction Field-Effect Transistor) or a Field-Effect Transistor (FET), a pin diode, and the like can be applied, and these switches can be applied in a very small size. Because of this, the antenna volume is hardly increased by applying it. Note that the signal line for control is omitted in the illustrated configuration.
  • HEMT Heterojunction Field-Effect Transistor
  • FET Field-Effect Transist
  • FIG. 8 illustrates a case in which the switches 80 are formed above the substrate 60 and below the carrier 20. This makes it possible to ignore the volume increase by applying the switches 80.
  • the switch is configured on the upper surface of the substrate 60 positioned below the radiator 30, but the switch is configured on the rear surface of the substrate 60, and the antenna radiator 30 is formed.
  • the line connection with the constituting the connection pad and the via hole on the substrate 60 can minimize the reduction of the ground area, so as not to affect the radiation efficiency of the antenna radiator 30.
  • the switches 80 may be formed on a substrate in an area outside the antenna area, not under the carrier 20. Since the volume of these switches is very small, a substantial substrate Losses can be minimized and deployment convenience can be increased.
  • SPmT single pole multi throw
  • FIG. 10 shows another configuration of a switch, in which the switch unit 100 is basically a band characteristic set by a switch 110 operated by a control signal and an antenna radiator connected to ground by the switch 110.
  • the LC unit 120 is configured to include an LC circuit for improving the choke function and characteristics for removing various noises.
  • the LC unit 120 may have a different value or configuration for each switch, thereby blocking noise or distortion caused by the switch connection and improving characteristics.
  • the modified antenna such as the dual inverted-F antenna, may also basically change various bands depending on the position of the ground portion of the antenna 150 to which the feeder 151 is connected and the configuration of the adjacent antenna.
  • the antenna characteristics may be variously changed by connecting the plurality of switches 161 to 163 to the radiator portion of the antenna 150 to which the antenna is connected. In the illustrated case, the switches are connected only to the basic antenna 150, but the switches may be connected to the adjacent coupling antenna 155 to induce a band change.
  • the switch connection configuration of the present invention is applied to a monopole antenna.
  • the monopole antenna 170 having the power supply unit 171 is also selectively connected to ground at the antenna radiator portion 181. 182), it is possible to shift to the desired band by selecting them.
  • This principle is due to the deformation of the electric field distribution similar to the inverted-F antenna described above, and the antenna structure of the monopole antenna itself is modified by the ground connection according to the application of the switch, so that the antenna structure has a different resonance point.
  • the switches are operated by an external control signal.
  • the control unit providing the control signal may be a main controller of the portable communication terminal to which the antennas are applied, and a dedicated controller for selecting the antenna band may be provided. It may also be configured as a simple corresponding logic according to the preset signal.
  • an example of a band selection method that can be utilized by using the antenna of the embodiments of the present invention, which is not difficult to configure as in the example of the antennas described above, hardly increases in volume due to the addition of switches, and has high design freedom of the switch configuration. Check the simulation waveform.
  • FIG. 13 shows a result of selecting a band using a planar inverted-F antenna configured similarly to FIG. 7, using a switch applied to an antenna radiator pattern portion for a low frequency band and a switch applied to an antenna radiator pattern portion for a high frequency band.
  • the result is that both bands are moved simultaneously without gain reduction.
  • the result of turning on and off a single switch configured in the low frequency band is shown. If necessary, a plurality of switches may be manipulated.
  • the graph on the right shows the band characteristics by the basic ground part when the switch is not operated, and it can be seen that the GSM900 (900MHz) and PCS (1.9GHz) bands are supported.
  • the band is selected for the GSM850 (850MHz) and DCS1800 (1.8GHz) bands as shown in the graph shifted to the left (red), and the gain reduction by the band selection does not occur. Able to know.
  • FIG. 14 illustrates a case in which a band of an antenna having dual band characteristics for a low frequency region and a high frequency region is selected by using another type of plane inverted-F antenna, and a switch operation (for example, a high frequency band) in a state of a blue graph The band has moved to the red graph state through a switch operation connected to a pattern).
  • a switch operation for example, a high frequency band
  • the high frequency band is shifted to a higher band while maintaining the low frequency band.
  • This band selection can cover a variety of high frequency bands (DCS, PCS, WCDMA, etc.) can be applied to a variety of applications.
  • FIG. 15 shows a case where only the low frequency band is selectively shifted while maintaining the high frequency band.
  • selective shifting is possible without gain reduction through switch operation coupled to the low frequency band pattern.
  • the antenna according to the embodiment of the present invention enables a band selection without gain reduction through a single or combination operation of a switch through a control unit, and when applied to a multi-band antenna, only the entire band or only a band selected among these bands is different. Can be selected.
  • this example is only a fragmentary example, and it is possible to select various low and high frequency bands as desired.
  • the switch selection method may be freely determined according to the use band, such as using only the switch of the low frequency part when low frequency band shifting is required in the required selection band, or using only the switch of the high frequency part when high frequency band shifting is required.
  • the antenna according to the present embodiment may be effectively used as a built-in antenna of a mobile communication terminal capable of satisfying all communication conditions in a region such as Europe or China, where various communication methods are mixed and serviced.
  • FIG. 16 relates to an additional function that can be provided through a switch operation provided through an embodiment of the present invention, and provides compensation for a side effect such as a hand effect or a head effect that has recently been of high interest in the improvement method.
  • a side effect such as a hand effect or a head effect that has recently been of high interest in the improvement method.
  • the contents are shown to compensate for hand effects that may occur when the portable terminal is held in the hand.
  • the green graph represents a normal state
  • the blue graph represents a case where the low frequency band is shifted by the hand effect.
  • a control unit when a hand effect such as a problem is detected in a known manner, a control unit provides a band selection signal to a preset switch (s) to compensate for band distortion caused by such an effect through a control unit.
  • s preset switch
  • the algorithm for accurate compensation of the hand effect can be applied to various existing methods such as a main controller or a dedicated controller of a portable communication terminal, and the controller for controlling the antenna switch selects a preset switch according to a signal for compensation.
  • various side effects such as hand effects and head effects can be easily compensated.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Abstract

La présente invention concerne une antenne de sélection de bande. Les caractéristiques de l'antenne utilisée dans un produit portable sont rendues variables à l'aide d'une sélection par commutateur, de manière à permettre la sélection de la bande souhaitée sans perte de gain. Pour ce faire, une pluralité de commutateurs de sélection de terre sont utilisés dans un émetteur d'antenne, et l'actionnement distinct des commutateurs permet de sélectionner la bande souhaitée tout en maintenant le gain simplement en modifiant les caractéristiques électriques sur la base de la manipulation du commutateur qui ne constitue pas une utilisation sélective de l'émetteur.
PCT/KR2009/006958 2009-02-23 2009-11-25 Antenne de sélection de bande WO2010095803A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2009801588662A CN102414917A (zh) 2009-02-23 2009-11-25 频段选择天线
JP2011550996A JP2012518937A (ja) 2009-02-23 2009-11-25 帯域選択アンテナ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090015047A KR100924769B1 (ko) 2009-02-23 2009-02-23 대역 선택 안테나
KR10-2009-0015047 2009-02-23

Publications (1)

Publication Number Publication Date
WO2010095803A1 true WO2010095803A1 (fr) 2010-08-26

Family

ID=41561118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/006958 WO2010095803A1 (fr) 2009-02-23 2009-11-25 Antenne de sélection de bande

Country Status (4)

Country Link
JP (1) JP2012518937A (fr)
KR (1) KR100924769B1 (fr)
CN (1) CN102414917A (fr)
WO (1) WO2010095803A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102122754A (zh) * 2011-01-28 2011-07-13 惠州硕贝德无线科技股份有限公司 一种提高小型终端手机天线工作频带宽度的方法
CN102255137A (zh) * 2011-04-25 2011-11-23 重庆邮电大学 可变频微带天线
EP2448061A1 (fr) * 2010-11-01 2012-05-02 Lg Electronics Inc. Terminal mobile avec un premier et un deuxième radiateur d'antenne
EP2466681A3 (fr) * 2010-12-17 2012-07-04 HTC Corporation Dispositif portable et antenne planaire correspondante
US10290922B2 (en) 2014-03-21 2019-05-14 Huawei Device Co., Ltd. Electronic device
WO2023173923A1 (fr) * 2022-03-16 2023-09-21 中兴通讯股份有限公司 Antenne de multiplexage multifréquence et terminal mobile

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101687632B1 (ko) 2010-05-10 2016-12-20 삼성전자주식회사 휴대용 단말기의 가변형 내장 안테나 장치
CN102760952B (zh) * 2011-04-27 2015-04-15 深圳富泰宏精密工业有限公司 多频天线
JP2012256999A (ja) * 2011-06-08 2012-12-27 Panasonic Corp アンテナ装置
TWI508365B (zh) * 2012-05-04 2015-11-11 Yageo Corp 具有連接電路之天線
KR20130135646A (ko) * 2012-06-01 2013-12-11 엘지전자 주식회사 안테나 장치 및 이를 구비하는 이동 단말기
CN103972656A (zh) 2013-02-04 2014-08-06 华为终端有限公司 天线装置和终端设备
TW201503488A (zh) * 2013-07-02 2015-01-16 Ming-Hao Yeh 多天線饋入埠主動天線系統及其相關控制方法
CN104347928B (zh) * 2013-07-29 2018-07-06 联想(北京)有限公司 天线装置、电子设备和用于控制天线装置的方法
CN104377423A (zh) * 2013-08-12 2015-02-25 宏碁股份有限公司 移动装置
CN104868250B (zh) * 2014-02-20 2019-03-29 联想(北京)有限公司 一种控制方法、设备及电子设备
CN104836035B (zh) * 2015-03-16 2017-12-12 酷派软件技术（深圳）有限公司 一种控制天线装置辐射频率的方法及终端
TWI551070B (zh) * 2015-05-08 2016-09-21 和碩聯合科技股份有限公司 可攜式電子裝置
CN105322295A (zh) * 2015-06-30 2016-02-10 维沃移动通信有限公司 用于移动终端的多频天线及其电子设备
CN105244603B (zh) * 2015-10-13 2018-05-18 上海斐讯数据通信技术有限公司 一种天线
KR102476765B1 (ko) * 2015-12-15 2022-12-13 삼성전자주식회사 안테나를 구비한 전자 장치
US20160149317A1 (en) * 2015-12-28 2016-05-26 Mediatek Inc. Communication Apparatus With Improved Radiated Spurious Emission And Loss
CN106252889A (zh) * 2016-07-25 2016-12-21 深圳天珑无线科技有限公司 切换频段的方法、天线和终端的后壳
CN108155478B (zh) * 2017-12-06 2021-10-08 青岛海信电子设备股份有限公司 应用于移动终端的天线和移动终端
CN108493616A (zh) * 2018-02-28 2018-09-04 上海与德科技有限公司 天线
CN108900217B (zh) * 2018-07-11 2021-01-08 Oppo（重庆）智能科技有限公司 调谐电路、射频电路及电子设备
CN109546293A (zh) * 2018-11-14 2019-03-29 惠州Tcl移动通信有限公司 应用于全面屏移动终端的天线结构、移动终端

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010095044A (ko) * 2000-03-30 2001-11-03 무라타 야스타카 표면 실장형 안테나, 이 표면 실장형 안테나의 이중 공진주파수의 조정 및 설정 방법, 및 이 표면 실장형 안테나를포함하는 통신 장치
JP2002261533A (ja) * 2001-03-05 2002-09-13 Sony Corp アンテナ装置
WO2003094290A1 (fr) * 2002-04-30 2003-11-13 Koninklijke Philips Electronics N.V. Arrangement d'antenne
KR20070071589A (ko) * 2005-12-30 2007-07-04 인탑스 주식회사 공진주파수 및 입력 임피던스 조절 가능한 다중 대역내장형 안테나

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06224618A (ja) * 1993-01-28 1994-08-12 Hitachi Ltd 自己インピーダンス可変アクティブアンテナ
JP2000114856A (ja) * 1998-09-30 2000-04-21 Nec Saitama Ltd 逆ｆアンテナおよびそれを用いた無線装置
US7420511B2 (en) * 2002-11-18 2008-09-02 Yokowo Co., Ltd. Antenna for a plurality of bands
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
US7265731B2 (en) * 2004-12-29 2007-09-04 Sony Ericsson Mobile Communications Ab Method and apparatus for improving the performance of a multi-band antenna in a wireless terminal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010095044A (ko) * 2000-03-30 2001-11-03 무라타 야스타카 표면 실장형 안테나, 이 표면 실장형 안테나의 이중 공진주파수의 조정 및 설정 방법, 및 이 표면 실장형 안테나를포함하는 통신 장치
JP2002261533A (ja) * 2001-03-05 2002-09-13 Sony Corp アンテナ装置
WO2003094290A1 (fr) * 2002-04-30 2003-11-13 Koninklijke Philips Electronics N.V. Arrangement d'antenne
KR20070071589A (ko) * 2005-12-30 2007-07-04 인탑스 주식회사 공진주파수 및 입력 임피던스 조절 가능한 다중 대역내장형 안테나

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2448061A1 (fr) * 2010-11-01 2012-05-02 Lg Electronics Inc. Terminal mobile avec un premier et un deuxième radiateur d'antenne
US8816913B2 (en) 2010-11-01 2014-08-26 Lg Electronics Inc. Mobile terminal
EP2466681A3 (fr) * 2010-12-17 2012-07-04 HTC Corporation Dispositif portable et antenne planaire correspondante
CN102569990A (zh) * 2010-12-17 2012-07-11 宏达国际电子股份有限公司 手持式装置及其平面天线
TWI448008B (zh) * 2010-12-17 2014-08-01 Htc Corp 手持式裝置及其平面天線
US8907851B2 (en) 2010-12-17 2014-12-09 Htc Corporation Handheld device and planar antenna thereof
CN102122754A (zh) * 2011-01-28 2011-07-13 惠州硕贝德无线科技股份有限公司 一种提高小型终端手机天线工作频带宽度的方法
CN102255137A (zh) * 2011-04-25 2011-11-23 重庆邮电大学 可变频微带天线
CN102255137B (zh) * 2011-04-25 2014-02-19 重庆邮电大学 可变频微带天线
US10290922B2 (en) 2014-03-21 2019-05-14 Huawei Device Co., Ltd. Electronic device
US10833396B2 (en) 2014-03-21 2020-11-10 Huawei Device Co., Ltd. Electronic device
WO2023173923A1 (fr) * 2022-03-16 2023-09-21 中兴通讯股份有限公司 Antenne de multiplexage multifréquence et terminal mobile

Also Published As

Publication number Publication date
KR100924769B1 (ko) 2009-11-05
JP2012518937A (ja) 2012-08-16
CN102414917A (zh) 2012-04-11

Similar Documents

Publication Publication Date Title
WO2010095803A1 (fr) Antenne de sélection de bande
WO2011105650A1 (fr) Antenne mimo interne capable de commander sélectivement des caractéristiques d'isolation à l'aide d'accessoires d'isolation dans un système multibande comprenant une bande lte
EP1361623B1 (fr) Antenne commutable entre divers bandes de fréquence destinée a des terminaux portatifs
CN103326104B (zh) 用于电子设备的内置天线
CN102394372B (zh) 电子设备和可调谐天线系统
FI118782B (fi) Säädettävä antenni
US20100149057A9 (en) Multiband antenna system and methods
US20100220016A1 (en) Multiband Antenna System And Methods
WO2009088231A2 (fr) Antenne intérieure multibande
WO2009134013A2 (fr) Antenne interne à large bande utilisant une structure à ondes lentes
WO2010030128A2 (fr) Antenne multibande utilisant un couplage électromagnétique
US20090066584A1 (en) Antenna device and portable radio communication device comprising such an antenna device
US9306266B2 (en) Multi-band antenna for wireless communication
WO2010038929A1 (fr) Antenne multicouche
KR20060055423A (ko) 2중-피드, 다중-대역, 평면 안테나
WO2006062060A1 (fr) Dispositif antenne radio et dispositif radio mobile utilisant celui-ci
WO2003096474A1 (fr) Antenne commutable a bandes de frequence multiples pour terminaux portatifs
WO2013100676A1 (fr) Appareil à antenne multibande
WO2018182109A1 (fr) Antenne de station de base multibande
EP1469553A1 (fr) Dispositif d'antenne monopole
WO2015088214A1 (fr) Antenne
CN101019272A (zh) 天线装置和包括该天线装置的便携式无线电通信装置
CN104183926A (zh) 一种缝隙天线和智能终端
WO2009154417A2 (fr) Antenne multibande pour unité de terminal portable et unité de terminal portable équipée de cette antenne
CN203521611U (zh) 一种耦合馈电多频天线

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980158866.2

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09840479

Country of ref document: EP

Kind code of ref document: A1

DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2011550996

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09840479

Country of ref document: EP

Kind code of ref document: A1