CN101278440A - 多频带天线系统 - Google Patents
多频带天线系统 Download PDFInfo
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- 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
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- 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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
- G08B7/066—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources guiding along a path, e.g. evacuation path lighting strip
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- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
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- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
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- 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
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- 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
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- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/02—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets
- E04F2290/026—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets for lighting
Abstract
无线电装置的机内天线系统，此系统包括有分立的天线并具有分离的工作频带。以下述方式即每个天线一般以小型芯片元件(310；320；330；340；350；360；610)为基础使系统实施分散，这些元件固定在电路板(PCB)的适当位置并且可能还处在装置中的另一内表面上。芯片元件包括陶瓷衬底和至少一个辐射元件。单个天线的工作频带覆盖了例如由无线电系统所使用的频率范围或者只是该频率范围内的发射频带或接收频带。至少一个天线连接至有转换开关的调节电路，通过调节电路能够根据需要使天线的工作频带移位。在这种情况下，工作频带每次覆盖由一个或两个无线电系统所使用的频率范围的一部分。天线能够制作成小型的，因为在有多个天线时，对单个天线来说相当窄的带宽就够了。在带宽窄时，能够选择比用于频带较宽天线的介电常数更高的材料用于天线，在这种情况下天线的尺寸就可以相应地做得比较小。此外，在每个无线电系统的整个带宽上还达到了天线的良好匹配，因为频带相当窄的分立天线的匹配要比组合式多频带天线的匹配更易于处理。
Description
本发明涉及无线电装置的具有分离工作频带的机内天线系统。该系统尤其用于小型移动通信站。
在小型移动无线电装置中，为方便起见，最好把天线设置在装置的外壳内。这就使得这种天线的设计与外置天线相比成为更加苛求的任务。在无线电装置必须在多个频带内工作时设计中还带来了一些额外的困难，这些频带或其中一个频带越宽，困难就越多。
在绝大多数情况下机内天线具有平面结构。在平面结构情况下，机内天线具有辐射平面以及距辐射平面一定距离的平行接地平面。辐射平面设置有天线的短路点和馈电点。属于平面结构的短路导体从短路点伸至接地平面，而天线的馈电导体从馈电点伸至无线电装置的天线端口。为增加天线工作频带的数量，辐射平面可以分成为如从短路点所看到的两个或多个长度不同的分支。通过寄生辅助元件也可以增加频带的数量。作为替代方案，可以使用寄生元件通过把与其相应的谐振频率调整到相对地接近对应于辐射平面分支的谐振频率来加宽工作频带。
在本说明书以及权利要求书中，术语“辐射平面”、“辐射元件”和“辐射器”都是指天线元件，它能够起发射射频电磁波元件，接收射频电磁波元件或发射与接收射频电磁波元件的作用。相应地，“馈电导体”意味着也能够起接收导体作用的导体。
上述这种天线的缺点是：在无线电装置必须工作而依据的无线电系统的数量增加的情况下，这些天线的特性不足以胜任。例如在其中一个无线电系统所使用的频带或这类频带中至少一个频带的部分频带内天线的匹配不好时就出现特性不胜任。此外，在对应于不同频带的天线元件之间进行足够的隔离也是困难的。在天线尺寸因缺少空间而不得不做出牺牲时这些缺点就突显出来。减小天线尺寸例如通过缩短辐射平面与接地平面之间的距离或在它们之间使用介电材料来达到。
还可以安排天线结构中的两个辐射器使得这两个辐射器都有其自己的馈电导体。这种情况在无线电装置对某无线电系统有其分立的发射机和接收机时就成为现实问题。图1示出了从刊物WO 02/078123所公知的这种天线结构的实例。它包括接地平面101、辐射平面110、辐射平面寄生元件113以及分离辐射器107。辐射平面有馈电导体102和短路导体，因而它与接地平面一起构成了PIFA(平面反向式F型天线)。PIFA有两个频带，因为辐射平面如从短路点和馈电点所看到的被分成为第一分支111和第二分支112。第一分支在GSM900(全球移动通信系统)的频率范围内起辐射器的作用，第二分支在DCS(数字式蜂窝标准)系统的频率范围内起辐射器的作用。寄生元件113与接地平面相连接，它在PCS(个人通信业务)系统的频率范围内起辐射器的作用。分离辐射器107具有其自己的馈电导体103和短路导体。它与接地平面一起构成IFA，其起“蓝牙”天线的作用。分离辐射器靠近辐射平面及其寄生元件放置使得辐射平面的短路导体和馈电导体、寄生元件的短路导体以及分离辐射器的短路导体和馈电导体在与天线结构尺寸相比相当小的区域内排成一排。在图1中看不到天线元线的支承结构。
上述的分离辐射器配备有其自己的馈电导体因而用于“蓝牙”系统。这种辐射器同样地可以用于例如WCDMA(宽带码分多址)系统。通常，使用装有其自己馈电导体的分离辐射器能把上述缺点减小到如下程度即：至少在设置了分离辐射器的无线电系统的频率范围内能够使匹配成功。
上面曾提到使用介电材料来减小天线的物理尺寸。图2示出了这种已知天线的实例。它包括介电衬底211、辐射器212及其馈电元件213。辐射器和馈电元件是衬底表面上的导体条。这三者一起构成天线元件，其安装在无线电装置的电路板PCB上。
本发明的目的是减少现有技术中的上述缺点。根据本发明的系统配置，其特点体现在独立权利要求1中所提出的内容。本发明的一些优选实施方案在其他权利要求中陈述。
本发明的基本构思如下：多频带无线电装置的天线系统被做成为机内分布式系统使得该装置有多个分立的天线。每个天线通常是以具有陶瓷衬底和至少一个辐射元件的小型芯片元件为基础。这些芯片元件安放在电路板上的适当位置并可能还处在装置中的另一内表面上。单个天线的工作频带覆盖了由一个无线电系统所使用的频率范围或者只是该频率范围内的发射频带或接收频带。至少有一个天线连接至具有转换开关的调节电路，通过调节电路能够根据需要使天线的工作频带移位。在这种情况下，工作频带每次覆盖由一个或两个无线电系统所使用的频率范围的一部分。
本发明的优点是可以把天线的尺寸做得很小。这是由于当有多个天线时，对单个天线来说相对窄的带宽就足够了。在带宽窄时，能够选择比频带较宽天线采用的介电常数更高的材料用于天线。在这种情况下天线的尺寸就可以相应地做得比较小。此外，本发明所具有的优点是在每个无线电系统的整个频带上还获得了良好的匹配。这是因为频带相对窄的分立天线的匹配要比组合式多频带天线的匹配更容易处理。本发明还有一个优点是能够减小所需天线的数目而又不牺牲匹配。例如，在使用时分双工时，分立的发射和接收天线能够用配备有调节电路的天线来代替。这种天线的工作频带可根据需要从发射频带移至接收频带，反之亦然。通过在分布式系统中将天线各自放在对其功能有利的位置使匹配还有效率得到了部分改善。本发明的另外一个优点是天线之间的隔离良好。这是由于天线的分布合理以及介电常数相当高的衬底消弱了天线的近场。
下面，将详细描述本发明。还将参照附图，附图中：
图1示出已知多频带天线的实例，
图2示出使用介电衬底的已知天线元件的实例，
图3示出在根据本发明的天线系统中天线布局的实例，
图4a-4e示出根据本发明的天线系统的组合实例，
图5示出能使天线工作频带移位的调节电路实例，
图6a示出单个天线及其与调节电路连接的实例，
图6b示出图6a中天线的调节电路实例，
图7示出适合于图4e中可调天线的天线工作频带移位的实例，
图8示出在根据图3的天线系统中一对天线的匹配情况实例，
图9示出在根据图3的天线系统中一对天线的效率实例，
图10示出能使天线工作频带移位的另一配置实例。
对于图1和图2已经结合现有技术作过说明。
图3以布局图示出根据本发明的天线系统实例。图中有包含电路板PCB的无线电装置300，塑料框架FRM以及外壳CAS。图中可以看得见的这一侧上的电路板的大部分表面由导电接地平面GND构成。在本实例中天线系统包括六个天线。其中每一个天线包括具有陶瓷衬底和两个辐射元件的细长天线元件。围绕天线元件的接地平面在这里也被认为是天线的一部分。本实例中，各个天线元件的辐射元件大小相同，因此它们在同样的、相对窄的频率范围上共振。天线的馈电导体接到一个元件上，另一元件为寄生元件。
在图中可以看到，第一天线元件310、第二天线元件320、第三天线元件330、第四天线元件340和第五天线元件350安装在电路板PCB的同一侧。第一天线元件310处在电路板第一端中间并与第一端平行。第二天线元件320处在由电路板第二端和其第一长边所确定的隅角并与第二端平行。第三天线元件330在靠近由电路板第二端和电路板第二长边所确定的隅角并与第二长边平行。第四天线元件340在电路板第一长边附近并与第一长边平行，(相对于第二端而言)略微更靠近第一端。第五天线元件350在电路板第二长边附近并与第二长边平行而且与第四天线元件相对。第六天线元件360安装在框架FRM的侧表面，此侧面与电路板的平面相垂直。这些天线元件都处在相对其他RF元件而言有利的位置，因此它们彼此干扰不大。
图3还示出了天线的接地配置实例。距第一天线元件310附近一定距离的电路板表面的接地平面已经从下面去除。不过，接地平面的狭长部分还是伸到辐射器的一点或多个点上。实际上，这个系统由于天线元件的分布而主要具有天线专用的接地平面。这种情况从下述事实而变得明显起来：沿着属于不同天线的两个辐射器之间的接地平面的距离至少是这两个辐射器的结合长度。
根据图3的天线可以设计成例如如下述情况：
-基于元件310的天线为用于GSM 850系统的天线；
-基于元件320的天线为用于GSM 900系统的天线；
-基于元件330的天线为用于GSM 1800系统的天线；
-基于元件340的天线为用于WCDMA系统的发射天线；
-基于元件350的天线为用于WCDMA系统的接收天线；
-基于元件360的天线为用于GSM1900系统的天线；
图4a-4e以示意图示出根据本发明的天线系统的组合实例。图4a中有三个天线。其中一个天线用于GSM850和GSM900系统、第二个天线用于GSM1800和GSM1900系统、第三个天线用于WCDMA系统。图4b中，有六个天线用于图3说明实例中所提到的那些相同频带。所以，按图4b中的顺序所列，其中第一个天线用于GSM850系统、第二个用于GSM900、第三个用于GSM1800、第四个用于GSM1900、第五个用于WCDMA系统的发射侧、第六个用于WCDMA系统的接收侧。在图4c中有十二个天线。其中第一个天线用于GSM850系统的发射侧，第二和第三个用于GSM850系统的接收侧。后两个用来在接收中执行空间分集。对GSM900、GSM1800以及GSM1900系统都有相应的一组三个天线。在图4d中，像在图4b中一样，对GSM850和GSM900系统都有分立天线。但是，在图4d的情况下，分立天线是连接在同一馈电线上。在传输方向分开之后，这些天线就变成与这些系统的共用发射机和其通过接收机相连接。同样，还有一些工作频带彼此相近的其他天线也能够连接到同一馈电线上。
图4e中，像在图4d中一样，有两个天线用于GSM850和GSM900系统并与同一馈电线相连。在图4e的情况下，一个天线的工作频带只覆盖GSM850系统的发射频带。另一天线可调，因此其工作频带可设置在要么是覆盖GSM850系统的接收频带、GSM900系统的发射频带，要么是覆盖GSM900系统的接收频带。这三个频带是连续的，所以在它们之间只有相当窄的频率范围未被利用。与图4d相比，就天线的数目而言，图4e的配置并未得到节省，但其优点是两个天线的频带都更窄。
图5以方框图示出调节电路的实例，利用此调节电路可以把天线的工作频带设置在不同的位置。本实例中的位置数目是三个。调节电路580连接到天线元件510和接地平面。从天线一侧看，调节电路首先包括滤波器FIL。滤波器的目的在这里是衰减在转换开关中产生的谐振频率分量并且起转换开关的ESD(静电放电)保护器的作用。滤波器类型是例如高通或带通型。滤波器的第二端口与具有三个可供选择输出端的转换开关SW的输入端相连接。每个输出端通过不同的电抗电路与地耦合，这三个电路的电抗X1、X2和X3彼此不同。因此天线元件中的辐射器可以通过三个可供选择的电抗与地耦合。在简单的情况下，电抗电路为具有短导体的短路(电抗非常高)。通过控制转换开关改变电抗来改变谐振频率/天线频率并进而改变其工作频带的位置。转换开关由信号C来控制。
图6a示出单个天线及其与调节电路连接的实例。图中看到的是无线电装置的电路板PCB的一部分，此电路板上安装有天线元件610。天线元件包括衬底611，由馈电导体602馈电的第一辐射元件612以及寄生辐射元件613。辐射元件对称放置使得每个元件覆盖衬底的一部分上表面以及其中一个相对的端面。元件之间留下一个相当窄的狭缝，狭缝沿对角线方向从一角伸到衬底上表面的相对的一角。另外在本实例中，如图3说明中已经提到的，距天线元件610附近一定距离的电路板表面的接地平面已经从下面取下。这种配置与接地平面完全伸至元件下面的区域相比，它增大了天线的电气尺寸。在前一种情况下，例如在一定频率范围内工作的天线元件的高度能够相应的减小。但是，接地平面延伸至在天线元件两端的第一辐射器612和寄生辐射器613。
对天线调节来说，天线元件还包括一带状导体614，其沿着衬底的侧表面从第一辐射器612伸至电路板PCB的表面。接着将带状导体与控制点CP中的第一辐射器进行电连接。本实例中的电连接通过一通孔延续至电路板的反面，反面上设置有上述天线的调节电路。
图6b示出图6a中天线的调节电路实例。图中是从反面所看到的图6a中电路板PCB的一部分。调节电路包括一个转换开关和三个传输线。来自控制点CP的导体通过隔直电容器BC连接到转换开关SW的输入端，利用隔直电容器使通过转换开关输入端从转换开关控制器到地的直流电路断开。转换开关有三个可以选用的输出端，其中每个输出端与一条传输线相耦合。这些传输线在本实例中为电路板PCB表面上的面接触型传输线。每条传输线在其两侧有中间导体和接地导体。第一条传输线681在其末端短路，第二传输线682开路，第三传输线683短路。在每个短路线的首端有一个也像在转换开关输入一侧上的类似的隔直电容器。传输线的长度例如分别为32mm、25mm和11mm。这样传输线的长度就小于约在1GHz频率下的四分之一波长。这就意味着第一和第三传输线相当于具有不同数值的容抗，而第二传输线相当于一定数值的感抗。当接到转换开关输入端的传输线通过控制转换开关进行转换时，天线的谐振频率及其工作频带的位置就发生改变。
在图6b实例中的转换开关与天线元件之间没有滤波器。需要时，例如通过在接地点与来自控制点CP的导体之间加装一线圈就可得到这样的滤波器。在这种情况下，此线圈与电容器BC构成了对转换开关起ESD保护作用的高通滤波器。
图7示出适合于图4e中可调天线的天线工作频带移位的实例。所以天线有三个可选用的工作频带，这些频带利用根据图6a和6b的结构加以实现。曲线71示出在天线被用来起GSM850系统中接收天线的作用时反射系数S11随频率的变化，其中接收天线的接收频带B1在869-894MHz。从曲线看到在调节电路的这种设置下反射系统为-7dB或更好。因此天线的工作频带很好地覆盖了所要求的频率范围。曲线72示出在天线被用来起GSM900系统中发射天线的作用时反射系数随频率的变化，其中发射天线的发射频带B2为890-915MHz。从曲线看出在调节电路的这种设置下反射系数也是-7dB或更好。因此天线的工作频带很好地覆盖了所要求的频率范围。曲线73示出在天线被用来起GSM900系统中接收天线的作用时反射系数随频率的变化，其中接收天线的接收频带B3在935-960MHz。从曲线看出在调节电路的这一设置下反射系数约为-8dB或更好。因此天线的工作频带很好地覆盖了所要求的频率范围。
图8示出根据图3的天线系统在对应第四天线元件340和第五天线元件350的天线用来起WCDMA系统中发射和接收天线的作用时其匹配情况的实例。这两个天线元件的衬底材料为陶瓷，其体积为10×3×2mm3(长、宽、高)。在反射系数S11随频率的变化曲线中出现匹配。从曲线看出在发射和接收频带的范围内反射系数为-10dB或更好。因此天线对的匹配良好。
图9示出图8应用的同样天线对的效率随频率变化的曲线。可以看出在发射频带中的效率其平均值约为0.76，而在接收频带的效率约为0.72。考虑到天线元件的体积很小，因而天线对的效率是极好的。如在自由空间中所测得的，发射天线的最大增益其平均值约为1.3dB，而接收天线的最大增益平均值约为2.3dB。
图10示出能使天线工作频带移位的另一配置实例。图中看到的是无线电装置的电路板PCB的一部分，在此电路板上安装有天线元件A10。本实例中的天线元件也包括衬底A11，通过馈电导体A02馈电的辐射器A12，以及寄生辐射器A13。这两个辐射器对称地安放使得每个辐射器都覆盖衬底的一部分上表面和一个相对的端面。此外，此天线元件还包括第二寄生元件A14，其安放在衬底的一个侧面上使得它对两个辐射器具有相等强度的电磁耦合。第二寄生元件通过导电带与电路板PCB上的调节电路A80相连接，此调节电路在图中以集成元件表示。因此本实例中调节电路与辐射器的耦合是电磁耦合。调节电路的控制例如通过电路板内的通孔进行，在图中看不到控制器。
上面已经描述了根据本发明的分布式天线系统。如从所述实例中所显现的，天线的数量和位置可以有很大变化。单个天线也可以只包括一个辐射元件。调节电路的一些或全部电抗自然也可以由单个的元件实现。调节电路也可以以使用电容性二极管为基础，在此情况下调节就是连续的而不是分段的。可调天线的频带也可以只覆盖使用大频率范围的系统的发射或接收频带的一部分。本发明不限制各单个天线元件的制造方法。例如通过在如硅表面上涂敷一层部分地含导电材料的陶瓷或形成一金属层并利用在半导体元件制造中使用的技术去除其一部分就能够进行这种制造。单个衬底也可以是无线电装置外壳的一部分。本发明的构思在由独立权利要求1限定的范围内可以按照不同的方式加以应用。
Claims (13)
1.无线电装置的机内天线系统，所述系统包括接地平面(GND)和至少两个天线，所述天线的每个辐射元件(612，613，A12，A13)均为在介电衬底(611；A11)表面上的导体，该系统的特征在于：
-属于不同天线的两个辐射元件之间沿接地平面的距离至少是这两个辐射器的结合长度，及
-至少一个天线与调节电路(528；A28)相连接，通过调节电路可以使其工作频带移位。
2.根据权利要求1所述的天线系统，其特征在于：
单个天线的衬底(611，A11)以及衬底表面上的至少一个辐射元件构成一个整体芯片型天线元件(310；320；330；340；350；360；610；A10)。
3.根据权利要求2所述的天线系统，其特征在于：
所述天线元件(310；320；330；340；350)中的至少一个元件位于无线电装置的电路板(PCB)上。
4.根据权利要求2所述的天线系统，其特征在于：
所述天线元件中的至少一个元件(360)位于无线电装置的内框(FRM)的表面上。
5.根据权利要求1所述的天线系统，其特征在于：
属于此天线系统的天线工作频带覆盖了由至少一个无线电系统所使用的频率范围。
6.根据权利要求1所述的天线系统，其特征在于：
属于该天线系统的一个天线的工作频带覆盖无线电系统所使用频率范围中的发射频带(TX)，而属于该天线系统的另一个天线的工作频带覆盖该使用频率范围中的接收频带(RX)。
7.根据权利要求6所述的天线系统，其特征在于：
该天线系统还包括一个天线，该天线的工作频带也覆盖上述无线电系统所使用频率范围中的接收频带以实现在接收过程中的空间分集。
8.根据权利要求1所述的天线系统，其特征在于：
所述调节电路(528)包括转换开关(SW)和可供选择的电抗电路(X1，X2，X3)以改变天线的谐振频率并以此方式使天线的工作频带移位。
9.根据权利要求8所述的天线系统，其特征在于：
这些电抗电路通过平面传输线(681，682，683)实现。
10.根据权利要求8所述的天线系统，其特征在于：
所述天线的工作频带每次只覆盖无线电系统发射或接收频带的一部分。
11.根据权利要求1所述的天线系统，其特征在于：
所述调节电路与天线的辐射元件(612)进行电连接。
12.根据权利要求2所述的天线系统，其特征在于：
所述衬底为陶瓷材料。
13.根据权利要求1所述的天线系统，其特征在于：
单个天线的衬底为无线电装置外壳(CAS)的一部分。
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2005
- 2005-10-03 FI FI20055527A patent/FI119009B/fi not_active IP Right Cessation
-
2006
- 2006-09-20 KR KR1020087010217A patent/KR20080064846A/ko active Search and Examination
- 2006-09-20 EP EP06794120A patent/EP1932209A4/en not_active Withdrawn
- 2006-09-20 WO PCT/FI2006/050403 patent/WO2007039668A1/en active Application Filing
- 2006-09-20 CN CNA2006800368816A patent/CN101278440A/zh active Pending
- 2006-09-20 US US12/083,129 patent/US8786499B2/en not_active Expired - Fee Related
- 2006-09-20 CN CN2006800365574A patent/CN101278438B/zh not_active Expired - Fee Related
- 2006-10-05 US US11/544,173 patent/US7589678B2/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908671A (zh) * | 2009-06-05 | 2010-12-08 | 瑞昱半导体股份有限公司 | 多频带印刷天线 |
| CN101908671B (zh) * | 2009-06-05 | 2014-10-08 | 瑞昱半导体股份有限公司 | 多频带印刷天线 |
| CN102356514A (zh) * | 2010-01-19 | 2012-02-15 | 松下电器产业株式会社 | 天线装置和无线通信装置 |
| US8742999B2 (en) | 2010-01-19 | 2014-06-03 | Panasonic Corporation | Antenna apparatus for simultaneously transmitting multiple radio signals with different radiation characteristics |
| CN102356514B (zh) * | 2010-01-19 | 2015-01-07 | 松下电器（美国）知识产权公司 | 天线装置和无线通信装置 |
| CN102694243A (zh) * | 2011-03-23 | 2012-09-26 | 宏碁股份有限公司 | 适用于移动通讯装置的小型化天线 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007039668A1 (en) | 2007-04-12 |
| CN101278438B (zh) | 2013-02-06 |
| EP1932209A1 (en) | 2008-06-18 |
| FI119009B (fi) | 2008-06-13 |
| US7589678B2 (en) | 2009-09-15 |
| US20070159399A1 (en) | 2007-07-12 |
| FI20055527A0 (fi) | 2005-10-03 |
| US20100220016A1 (en) | 2010-09-02 |
| KR20080064846A (ko) | 2008-07-09 |
| FI20055527A (fi) | 2007-04-04 |
| EP1932209A4 (en) | 2008-10-29 |
| CN101278438A (zh) | 2008-10-01 |
| US8786499B2 (en) | 2014-07-22 |
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