CN1359552A - Integrable dual-band antenna - Google Patents

Integrable dual-band antenna Download PDF

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Publication number
CN1359552A
CN1359552A CN00809656A CN00809656A CN1359552A CN 1359552 A CN1359552 A CN 1359552A CN 00809656 A CN00809656 A CN 00809656A CN 00809656 A CN00809656 A CN 00809656A CN 1359552 A CN1359552 A CN 1359552A
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antenna
pifa
planar structure
contacts
general plane
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Chinese (zh)
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S·G·潘
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Siemens Corp
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Siemens Corp
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; 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
    • H01Q1/243Supports; 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/005Patch antenna using one or more coplanar parasitic elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/30Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/378Combination of fed elements with parasitic elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421Substantially 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
  • Details Of Aerials (AREA)

Abstract

本发明涉及一种集成式双频带天线,本发明的特征是,包括一个位于接地平面之上并且基本呈矩形的总平面,为实现两个独立频率的发射,所述总平面由一个L形PIFA天线和一个矩形PIEA天线组成,其中所述PIFA天线具有三个或四个经导线与两个触点相连的引线。

Figure 00809656

The present invention relates to an integrated dual-band antenna. The feature of the present invention is that it comprises a substantially rectangular general plane located above the ground plane. In order to realize the transmission of two independent frequencies, the general plane consists of an L-shaped PIFA The antenna is composed of a rectangular PIEA antenna, wherein the PIFA antenna has three or four leads connected to two contacts via wires.

Figure 00809656

Description

集成式双频带天线Integrated dual-band antenna

本发明涉及一种集成式双频带天线。The invention relates to an integrated dual-band antenna.

在移动通信设备中,出于设计的原因,对天线有特殊的要求。特别是天线应当能够集成在外壳内部,从外面看不到。同时天线应当能够至少用于两个不同的频率范围,并且制造成本低。In mobile communication devices, special requirements are placed on the antenna for design reasons. In particular the antenna should be able to be integrated inside the housing and not be visible from the outside. At the same time the antenna should be able to be used in at least two different frequency ranges and be inexpensive to manufacture.

迄今为止,大多数移动通信设备的天线是棒状天线,即从外面可以看到的天线。一种集成式天线例如公开在专利文献WO 95/24745中。但是这种公知技术很昂贵,而且天线的尺寸很大,以致于无法在现有设备中找到天线位置。To date, the antennas of most mobile communication devices are rod antennas, ie antennas that can be seen from the outside. An integrated antenna is for example disclosed in patent document WO 95/24745. But this known technique is expensive and the size of the antenna is so large that it is impossible to find an antenna location in existing equipment.

本发明的任务是,提供一种上述类型的天线,它没有外露部分,可集成在通信终端设备外壳内,并且具有所要求的双频带性能。The object of the present invention is to provide an antenna of the aforementioned type which has no exposed parts, which can be integrated into the housing of a communication terminal and which has the required dual-band performance.

以上任务的解决方案是,所述天线包括一个位于接地平面之上并且基本呈矩形的总平面,为实现两个独立频率的发射,所述总平面由一个L形PIFA天线和一个矩形PIFA天线组成,其中所述PIFA天线具有三个或四个经导线与两个触点相连的引线。The solution to the above task is that said antenna comprises a substantially rectangular general plane above the ground plane, said general plane consisting of an L-shaped PIFA antenna and a rectangular PIFA antenna for the emission of two independent frequencies , wherein the PIFA antenna has three or four leads connected to two contacts via wires.

本发明对以上所述问题的解决方案是采用一种天线,它由一个空间封闭的双PIFA(平面反向F天线)天线结构组成,它通过专门的导线结构相互连接。通过该结构可得到一种小型空间构造,它适用于双频带用途,并且能够与一个由非平整平面或圆角折边构成的外壳相匹配。该天线特别能够放置在不可避免的金属平面附近使用,例如相隔几个毫米,所述金属平面通常构成电子线路的金属屏蔽层。The solution of the present invention to the above-mentioned problems is to adopt an antenna, which consists of a space-enclosed dual PIFA (Planar Inverted F Antenna) antenna structure, which is connected to each other by a special wire structure. This structure results in a compact space configuration, which is suitable for dual-band use and which can be matched to a housing made of non-flat surfaces or rounded corners. The antenna is particularly capable of being placed in the vicinity of unavoidable metal planes, for example a few millimeters apart, which generally constitute the metal shielding of electronic circuits.

制造天线时所使用的冲压和弯折板件的标准工艺由于具有极高的生产速度,所以其制造成本很低。此外制造天线接触弹簧的成本也可以省掉,该弹簧用于在天线和设备的电子线路之间建立接触,因为天线弹簧作为天线的集成部分可在一个生产工艺中制出。The standard process of stamping and bending sheet parts used in the manufacture of antennas is very inexpensive to manufacture due to their extremely high production speeds. In addition, the costs for producing the antenna contact spring for establishing contact between the antenna and the electronics of the device can be saved, since the antenna spring can be produced as an integrated part of the antenna in one production process.

通过最佳化设计,可以使天线在其用于目标频带(例如GSM)的第一谐振频率附近使用,并且在第二谐振频率附近能够在宽带范围内工作,从而能够使用在另一个频带中(例如PCN或PCS)。此外还可以同时实现标称阻抗约为50欧姆,所以天线无需匹配网络或者仅用少量匹配元件即可工作。该方案的效果是在匹配电路中可以避免始终出现的损失。By optimizing the design, the antenna can be used near the first resonant frequency of the target frequency band (such as GSM), and can work in a broadband range near the second resonant frequency, so that it can be used in another frequency band ( such as PCN or PCS). In addition, a nominal impedance of approximately 50 ohms can be achieved at the same time, so the antenna can work without a matching network or with only a small number of matching components. The effect of this solution is that losses which always occur in the matching circuit can be avoided.

本发明的创造性在于,对两个子区域的不可避免的耦合按照以下方式加以考虑,使得整个系统能够在多个频带中工作。为此采用了一种特殊的天线馈线,它在发射面上的两个接触点上构成了3个或4个触点。The inventive step of the invention consists in taking into account the unavoidable coupling of the two subregions in such a way that the entire system can be operated in multiple frequency bands. A special antenna feeder is used for this, which forms 3 or 4 contacts at two contact points on the emitting surface.

本发明所述天线的其他有利改进见从属权利要求以及以下关于本发明所述天线的一个实施例的说明。Further advantageous developments of the antenna according to the invention can be found in the dependent claims and in the following description of an embodiment of the antenna according to the invention.

下面对照附图所示实施例对本发明作进一步的说明。The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

图1表示本发明的一个第一实施例的示意图,Fig. 1 represents the schematic diagram of a first embodiment of the present invention,

图2表示本发明的一个第二施例的示意图,Fig. 2 represents the schematic diagram of a second embodiment of the present invention,

图3至图5表示本发明所述天线的具体实施例的立体图。3 to 5 show perspective views of specific embodiments of the antenna of the present invention.

在图1和图2所示的实施例中,两个所示的子结构S1和S2分别通过导线L1与所定义的接线位置P1和P2相连。其中所述子结构S1基本上构成L形状,而子结构S2基本上构成矩形。In the exemplary embodiment shown in FIGS. 1 and 2 , the two shown substructures S1 and S2 are respectively connected to defined connection points P1 and P2 via a line L1 . In this case, the substructure S1 essentially forms an L shape, while the substructure S2 essentially forms a rectangle.

此外还有另外两个接线位置P3和P4通过一个第二导线L2相互连接。In addition, two other terminal points P3 and P4 are connected to one another via a second line L2.

在两个固定的位置上,在该导线上可实现两个触点K1和K2。At two fixed positions, two contacts K1 and K2 can be realized on this line.

因此所得到的天线是由两个具有一个双极接线触点的并联子区域构成的。The resulting antenna is thus formed from two parallel sub-areas with a dipole wiring contact.

所述天线由两个不同的平面结构或插片组成的。其中的L形插片主要工作在GSM频带,近似矩形的插片主要工作在PCN频带。因此整个系统可通过两个插片的导线连接在两个或多个频带中工作。The antenna consists of two different planar structures or blades. Among them, the L-shaped insert mainly works in the GSM frequency band, and the approximately rectangular insert mainly works in the PCN frequency band. Therefore the whole system can work in two or more frequency bands through the wire connection of the two blades.

两个天线插片S1和S2通过导线L1和L2相互连接。导线L1也可以通过一个短而宽的金属条构成,并作为插片的一部分(参见图2)。The two antenna blades S1 and S2 are connected to each other via lines L1 and L2. The wire L1 can also be formed by a short and wide metal strip and be part of the blade (see Figure 2).

接线位置P1和P2通常位于两个插片S1和S2的对角线上。接线位置P4和P1之间在插片S1上的距离以及接线位置P2和P3在插片S2上的距离基本上确定了天线的输入阻抗。The connection positions P1 and P2 are usually located on the diagonal of the two tabs S1 and S2. The distance between the connection points P4 and P1 on the blade S1 and the distance between the connection points P2 and P3 on the blade S2 substantially determine the input impedance of the antenna.

K1和K2是通过天线的输入阻抗以及主要是通过线路板的布局确定的。一个触点与线路板的地线相连,另一个触点与移动通信设备的电子线路的发射器和接收器的输入端相连。K1 and K2 are determined by the input impedance of the antenna and mainly by the layout of the circuit board. One contact is connected to the ground of the circuit board, and the other contact is connected to the input terminals of the transmitter and receiver of the electronic circuit of the mobile communication device.

通过移动通信设备的电子线路可以定义出阻抗(典型的阻抗是50欧姆)。根据计算可以选择接线位置P3和P4的定位,使得电子线路和天线的阻抗相互匹配。An impedance (typically 50 ohms) can be defined by the electronic circuitry of the mobile communication device. According to calculations, the positioning of the connection points P3 and P4 can be chosen such that the impedances of the electronic circuit and the antenna match each other.

图3至图5表示本发明的具体实施例,它例如可以安装在一个移动通信设备内。Figures 3 to 5 show specific embodiments of the invention which can be installed, for example, in a mobile communication device.

Claims (7)

1.集成式双频带天线,本发明的特征是,包括一个位于接地平面之上并且基本呈矩形的总平面,为实现两个独立频率的发射,所述总平面由一个L形PIFA天线和一个矩形PIFA天线组成,其中所述PIFA天线具有三个或四个经导线与两个触点相连的引线。1. integrated dual-band antenna, the present invention is characterized in that it comprises a general plane positioned on the ground plane and substantially rectangular, for realizing the transmission of two independent frequencies, said general plane consists of an L-shaped PIFA antenna and a It consists of a rectangular PIFA antenna, wherein the PIFA antenna has three or four leads connected to two contacts via wires. 2.如权利要求1所述的天线,其特征是,在所述平面结构上设置孔和开口。2. The antenna as claimed in claim 1, characterized in that holes and openings are provided in the planar structure. 3.如权利要求1或2所述的天线,其特征是,所述平面结构具有折边和弯曲。3. An antenna as claimed in claim 1 or 2, characterized in that the planar structure has folded edges and bends. 4.如权利要求1至3中任何一项所述的天线,其特征是,所述导线L1和/或L2在所述平面结构上的集成方式是使制造能够仅用一个部件实现。4. The antenna according to any one of claims 1 to 3, characterized in that the integration of the wires L1 and/or L2 on the planar structure is such that manufacturing can be realized with only one component. 5.如权利要求1至4中任何一项所述的天线,其特征是,构成所述触点K1和K2的元件的设置方式是使制造能够仅用一个部件实现。5. An antenna as claimed in any one of claims 1 to 4, characterized in that the elements constituting the contacts K1 and K2 are arranged in such a way that manufacture can be realized with only one part. 6.如权利要求1至5中任何一项所述的天线,其特征是,构成所述触点和导线的元件的设置方式是使制造能够在一个共同的工艺中实现。6. An antenna as claimed in any one of claims 1 to 5, characterized in that the elements constituting the contacts and wires are arranged in such a way that manufacture can be carried out in a common process. 7.如权利要求1至6中任何一项所述的天线,其特征是,点P1至P4位于所述平面结构的不同侧边上。7. An antenna as claimed in any one of claims 1 to 6, characterized in that points P1 to P4 lie on different sides of the planar structure.
CN00809656A 1999-06-29 2000-05-30 Integrable dual-band antenna Pending CN1359552A (en)

Applications Claiming Priority (2)

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DE19929689A DE19929689A1 (en) 1999-06-29 1999-06-29 Integrable dual band antenna
DE19929689.8 1999-06-29

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BR (1) BR0012088A (en)
CA (1) CA2377921A1 (en)
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HU (1) HUP0201805A2 (en)
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HUP0201805A2 (en) 2003-01-28
JP2003504902A (en) 2003-02-04
WO2001003238A1 (en) 2001-01-11
CA2377921A1 (en) 2001-01-11
BR0012088A (en) 2002-05-28
DE19929689A1 (en) 2001-01-11
KR20020011141A (en) 2002-02-07

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