CN1841846A - 层叠型多谐振器天线 - Google Patents

层叠型多谐振器天线 Download PDF

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CN1841846A
CN1841846A CNA2006100656586A CN200610065658A CN1841846A CN 1841846 A CN1841846 A CN 1841846A CN A2006100656586 A CNA2006100656586 A CN A2006100656586A CN 200610065658 A CN200610065658 A CN 200610065658A CN 1841846 A CN1841846 A CN 1841846A
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antenna structure
resonator
resonator elements
resonance
ground plane
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保利娜·奥赖尔登
约瑟夫·莫德罗
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TDK Corp
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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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths

Abstract

一种天线结构，包括一个接地平面，一个馈线和至少一个谐振器部件。该至少一个谐振器部件被嵌入在电介质基板中，并且形状是弯曲的从而它包括至少两个相邻谐振器部分。因此，该谐振器部件在两个分离的频带中谐振。一个第二谐振器部件被优选设置，该第二谐振器部件被设计成在处于一个第三工作频带一侧的一个频带中谐振，设置该馈线和接地平面以使在处于第三工作频带另一侧的一个频带中产生谐振。在使用中，第二谐振器部件的谐振与馈线和接地平面的谐振的联合作用使该天线结构在第三工作频带中谐振。

Description

层叠型多谐振器天线
技术领域
本发明涉及天线。本发明尤其涉及旨在用于例如膝上型电脑和个人数字助理的便携式无线通信设备的天线。
背景技术
近来，对于有效和及时地远程移动地访问电邮和互联网的需求的日益增长已经产生对特别是宽带设备的通用便携式无线通信设备的需求。被设计成在世界范围的许多地方操作的移动通信装置也已经变得越来越流行。
对于这些应用，就要求天线能在符合不同全球标准的多频带上工作。此外，要求典型的便携式设备天线具有小尺寸和低成本。
一种实现能在多于一个的频带上工作的天线的方法是在多层电介质基板的各层上制造多个金属化部件，其中每个金属化部件被设计成在天线的一个工作频段的中心频率处谐振。例如，在欧洲专利申请EP1363355中记载的层叠型弯曲天线包括两个谐振的弯曲部件，分别用于天线的每个工作频段。EP1363355也说明了，如果天线被要求工作在三个频段，那么就需要三个弯曲部件。
为一个多频带天线的每个工作频段分别设置谐振的弯曲部件是一种获得要求的多频带天线的电气特性的方法。然而，由于要求的天线的工作频段数的增加，为天线的每个工作频段分别设置一个弯曲谐振器将增加多频带天线的总尺寸和成本。
因此，需要提供一种能工作在N个频带上的天线，它包括少于N个的谐振的弯曲部件。
发明内容
因此，本发明第一个方面是提供一种天线结构，包括了至少一个谐振器部件、一个接地平面和一个馈线，其中所述的至少一个谐振器部件的形状是弯曲状的，使得所述的至少一个谐振器部件包括至少两个相邻的谐振器部分，以及其中所述的至少一个谐振器部件被嵌入到电介质基板中。
将弯曲谐振器嵌入到电介质基板中使得谐振器在至少两个分隔的频带上谐振，由此提供了至少两个不同的工作频带。
优选地，所述的至少一个谐振器部件包括至少一个拐角部分，所述的至少一个拐角部分是弯曲的。弯曲的拐角部分利于使用之中谐振器中的电流流动。
在一个实施例中，所述的至少一个谐振器部件包括一个第一谐振器部件，所述天线结构还包括一个第二谐振器部件，其中在所述天线结构的工作频带方面，所述第二谐振器部件被设计成在位于所述工作频带一侧的一个频带中谐振，设置馈线和接地平面来引起在位于所述工作频带另一侧的一个频带中的谐振，其中，在使用中，所述第二谐振器部件和所述馈线和接地平面的谐振的联合效应使得所述天线结构在所述工作频带中谐振。这为天线结构提供了另外的工作频带。
在优选的实施例中，所述的至少一个谐振器部件包括一个第一谐振器部件，所述天线结构还包括一个第二谐振器部件，所述第一和第二谐振器部件具有一个连接到所述馈线的一个单一、共用的馈电端，并被设计成用于各个频带的各个四分之一波长谐振器。
有利地，所述第二谐振器部件被嵌入到所述电介质基板中。该第二谐振器部件的形状可以是弯曲的形状。
优选地，所述第一谐振器部件位于一个第一平面中以及所述第二谐振器部件位于一个第二平面中，所述第一和第二平面实质上互相平行。
在优选的实施例中，天线结构包括一个谐振器组件，其包含了嵌入在所述电介质基板中的所述至少一个谐振器部件，所述至少一个谐振器部件位于一个第一平面中，所述接地平面与所述谐振器组件分隔开以使所述接地平面在与所述第一平面实质上垂直的方向上不与所述的至少一个谐振器部件重叠。
有利地，接地平面实质上是关于所述第一平面平行设置。
在优选的实施例中，所述的至少一个谐振器部件具有一个单一的馈电端并从所述馈电端开始通常沿一个第一方向延伸，所述谐振器组件在实质上与所述第一方向垂直的方向上与所述接地平面分隔开。
天线结构典型的包括一个与所述接地平面对齐的激发端，所述馈线在所述激发端和所述馈电端之间延伸。优选的设置是所述的至少一个谐振器部件自所述馈电端起通常沿一个第一方向延伸，所述馈线沿实质上与所述第一方向垂直的方向延伸。有利地，馈线包括实质上在馈电端和激发端之间的整个距离上延伸的传输线的长度。
典型地，天线结构被设置在具有正面和反面的基板上，所述谐振器组件和所述馈线被设置在所述正面上，所述接地平面被设置在所述反面上。
本发明的第二方面提供了一种天线结构，包括接地平面、馈线、和至少一个谐振器部件，其中对于所述天线结构的工作频带，所述的至少一个谐振器部件被设计成在处于所述工作频带一侧的一个频带中谐振，设置馈线和接地平面来引起处于所述工作频带另一侧的一个频带中的谐振，其中，在使用中，所述至少一个谐振器部件与所述馈线和接地平面的谐振的联合效应使得所述天线结构在所述工作频带中谐振。
本发明的第三个方面提供了一种包含本发明的第一个方面的天线结构的无线通信设备。
查看以下具体实施方式的描述并参考附图，本发明的其它优点对于本领域的熟练技术人员来说将是显然的。
附图说明
现在通过举例的方式并参考附图描述本发明的一个实施例，其中：
图1A表示了体现本发明的天线的透视图(除开接地平面)；
图1B表示了图1A的天线的俯视图；
图1C表示了图1A的天线的侧视图；
图2A和2B表示了自由空间中λ/4弯曲谐振器的E场方向；
图2C和2D表示了嵌入在电介质基板中的λ/4弯曲谐振器的E场方向；
图3A表示了包括了接地平面和馈线的图1A到1C的天线的透视图；
图3B部分表示了图3A的天线、接地平面和馈线的俯视图；
图4A表示了不具有电介质基板的图1的天线的各个λ/4弯曲谐振器的透视图；
图4B表示了不具有电介质基板的图1的天线的各个λ/4弯曲谐振器的侧视图；
图5表示了本发明的优选实施方式的损耗与频率的关系曲线；以及
图6表示了本发明的优选实施方式的阻抗的实部和虚部与频率的关系曲线。
具体实施方式
图1A到1C和图3A和3B表示了一个体现了本发明的天线结构，通常用8表示。表示的天线结构8能在三个主要频带中工作并由此可被称作三频带天线。在其它实施方式中，天线能在至少两个或三个以上的频带中工作。
天线结构8包括谐振结构10(它通常被称作天线，或有时被称作微型片状天线)和接地平面14。天线结构8也包括馈线16，电信号可通过该馈线16被传送到天线10和/或从天线10接收。
天线10包括至少两个层叠的或分层的谐振器部件24、26，它们中的至少一个在形状上是曲形的，曲折的或通常是波状的或锯齿形的。以下在优选实施方式的上下文中被称作弯曲谐振器的每个谐振器部件24、26可包括各自长度的传输线，例如微带线。在优选实施方式中，天线10包括第一弯曲谐振器24和第二弯曲谐振器26。谐振器24、26是层叠的，它们位于实质上与其它谐振器26、24所在的平面平行的各自的平面中。弯曲谐振器24、26每个被设计成用于各个频带的λ/4谐振器。
谐振器24、26都被嵌入到电气绝缘或不导电材料的块或基板22中，典型的为电介质材料，即介电常数大于1的材料。在优选实施方式中，谐振器24、26被嵌入以使它们被电介质材料完全包围。在可选择的实施方式中，嵌入是使得至少一个弯曲谐振器的至少正面和反面被电介质材料覆盖，尽管优选的是谐振器的边缘或侧面也被电介质材料覆盖。嵌入无论如何应该是在使用之中从谐振器辐射的E场是受控来引起相邻的弯曲部分之间的耦合，以下会更详细地说明。
天线10被设置、或安装在典型的为电介质材料制成的基板12的第一表面或正面11上，例如印刷电路板(PCB)。优选的设计是使弯曲谐振器24、26实质上相对于表面11平行设置。PCB12具有第二表面或反面13(与正面11相反)，在其上设置了接地平面14。典型地，接地平面14包括一层导电材料，例如铜，并且通常适宜为矩形形状。该设计是使接地平面14不延伸到天线10之下，即在与弯曲谐振器24、26所在的平面垂直的方向上不与天线10重叠。而且，接地平面14在实质上与谐振器24、26空间分隔的方向垂直的方向上与天线10分隔开是有利的。最后，PCB12的反面13被接地平面14部分覆盖并因此被分成接地平面部分14和非接地平面部分15，设置在正面11上的天线10与反面13的非接地平面部分15相对或对齐。
馈线16优选地采取了一段长度的传输线的形式，例如微带线。在优选的实施方式中，馈线16包括一个50Ω的微带馈线。优选地，馈线16被设置在PCB12的正面11上。天线10包括馈电端20，馈线16的一端被连接到馈电端20。馈线16的另一端被连接到激发端18。典型地，激发端18设置成与接地平面14对齐，并因此在激发端18与馈电端20之间的延伸中，馈线16的第一部分与接地平面14对齐，而馈线16的第二部分与PCB12的反面13的非接地平面部分15对齐，即馈线16的第二部分越过了接地平面14与天线10之间的空隙。激发端18被连接到连接器，例如SMA(超小型形式A)连接器，通过该连接器信号可被馈送到馈线16并从馈线16接收。
将会看到从位于每个谐振器24、26的各端(所述的各端被电连接起来)的单一的共用馈电端20对谐振器24、26馈电。因此，在使用中，谐振器24、26和接地平面14一起用作λ/4单极天线。而且，将会看到谐振器24、26所从中馈电的各端在谐振器24、26分隔的方向上实质互相对齐。
每个弯曲谐振器24、26可以说是自馈电端20通常沿第一方向(D1)延伸，其中所述的第一方向D1是一个多环路的弯曲谐振器沿长度延伸的大致方向，或相邻弯曲部分之间的大致方向(当出现大于一个的弯曲部分时)。在优选的实施方式中，弯曲谐振器24、26和接地平面14位于大致平行的平面中，但是天线10(并由此谐振器24、26)和接地平面14在实质上与所述第一方向D1垂直的和实质上与谐振器24、26分隔的方向垂直的方向上互相分开。
弯曲谐振器中的至少一个(在本例中谐振器24)被设计成形如至少一个环路27，并且典型地为多个环路27。环路27被在方向D1上空间分隔的多个传输线部分29(以及其典型地是实质上或大致互相平行)所确定，相邻部分29在一端被各个传输线拐角部分31连接起来以形成弯曲谐振器。有利地，拐角部分31是弯曲的或圆形的(如图所示)以产生弯曲的形状，尽管在可选的实施方式中，拐角部分可以是直的。
谐振器24、26可优选在方向D1上错开以减小或最小化在方向D1上的谐振器24、26之间的重叠量。这减少了使用中谐振器24、26之间的耦合。如从图1C清楚看到的那样，谐振器24、26的各个部分29最好在方向D1上不重叠。
在优选的实施例中，馈线16沿实质上与方向D1垂直的方向延伸，以及在图示的实施例中，实质上与接地平面14的边缘19垂直。
天线结构8具有三个独立的工作模式，由两个层叠的λ/4弯曲谐振器24、26产生。天线结构8的三个工作模式在以下被称作第一，或低频带模式；第二，或中频带模式；和第三，或高频带模式。因此，天线结构8能被用于在三个相应频带上发射或接收电磁信号，通常为RF(射频)信号，这三个相应频带为：低频带；中频带；和高频带。
在优选的实施例中，仔细选择层叠的弯曲谐振器24、26的几何结构来制造能在要求的频带中工作的三频带天线。而且，天线结构8的接地平面14，连到天线结构8的馈线16和电介质基板22的电特性在实现天线结构8的三频带操作方面产生了许多有利的效果。
低频段操作模式由两个λ/4弯曲谐振器中较长的一个，即谐振器24产生。这种模式的谐振频率主要由谐振器24的长度决定。然而，要注意，与该谐振器在自由空间所要求的长度相比，电介质基板22对这种操作模式的影响减少了谐振器24所需的长度，即基板22具有减少谐振器24的有效电长度的作用。
高频段操作模式也由谐振器24产生。在这种模式中发现，由于谐振器24被嵌入在基板22中从而使其被电介质材料包围(至少要使基板包围谐振器24的正面和反面)，电介质基板22有利于改变使用中由谐振器24产生的电磁场的方向，特别是近场的方向。图2B中的箭头E表示了自由空间中由谐振器24所维持的电场的方向。在这种情况下，电场E主要是在z方向(如图2所示)。当相同的弯曲谐振器24被嵌入到电介质基板中，可以看到电场方向从z方向改变到x-y平面，如图2C所示。
E场方向的改变包括只在高频起作用的弯曲谐振器24的相邻线路部分29之间的耦合。弯曲谐振器24的相邻线路部分29之间的耦合显著地减少了高频时弯曲谐振器24的有效电长度。通过相邻部分29在更高频率的耦合来缩短弯曲谐振器24，这样通过允许弯曲谐振器24在比低频带模式高得多的频率处谐振来引入了高频带工作模式。
第三种模式操作，在这个例子中是中频带模式，由两种谐振的组合产生，一种来自谐振器26，另一种来自天线10周围的环境，特别是来自馈线16和接地平面14。嵌入在电介质基板22中的两个λ/4弯曲谐振器中较短者26产生了恰好处于天线结构8的中频带模式所要求的频率范围以下的谐振。应该注意电介质基板22改变了弯曲谐振器26的边界条件并改变了从馈电端20来看的谐振器26的阻抗，以及这些因素也有利于该谐振的频率。
由于这是一种单极天线设计，天线的操作依赖于它的外部参数。例如，天线结构8的谐振频率能被调节或去调，其通过改变馈线16的长度，和/或通过改变作用的接地平面14的尺寸，和/或通过改变天线10相对它的接地平面14的位置(包括调节天线10和接地平面14之间空隙或间隔的大小)。对于单极天线设计，由于馈线和接地平面是谐振结构的固有部分，失调就会发生。对于天线结构8，馈线16和接地平面14以这种方式被构造和设计，即引入处于由前段中所记载的谐振器26引起的谐振频率之上的额外的谐振。可以发现，至少部分由于馈线16的谐振导致了这种额外的谐振的出现，这种额外的谐振还取决于上述的包括了馈线16的长度、作用的接地平面14的尺寸、和/或天线10相对它的接地平面14的位置的参数。这种额外的谐振去调，或调节谐振器26的谐振以产生天线结构8的中频带工作模式。
应该注意谐振器26不要求包括一个弯曲谐振器。谐振器26的长度取决于所要求谐振的频率。因此，在一些实施例中，谐振器26太短以至于不必要包括曲线或环线。在其它实施例中，谐振器26可以包括一个或多个曲线或环线。
因此可以明白，在优选的实施例中，天线结构8用作三频带天线，其具有第一工作模式，第二工作模式，和第三工作模式，其中天线的工作模式发生在各自的频带上，典型地发生在各自分离或非重叠的频带上。天线结构8包括一个第一λ/4弯曲谐振器部件24和一个第二λ/4谐振器部件(它可以是弯曲谐振器)，其中天线结构8的第一和第二谐振或辐射部件24、26被制造或嵌入在电介质基板22中。天线结构8的第一工作模式归因于第一谐振器部件24的基频谐振，天线结构8的第二工作模式归因于天线的第二谐振器部件26的谐振并结合由天线结构8的工作环境引起的谐振，以及其中天线结构8的第三工作模式归因于天线结构8的第一谐振器部件24的更高阶的谐振，其中更高阶的谐振由第一谐振器部件24的相邻线路部分29之间的耦合产生。
在优选的实施例中，PCB 12的宽度(W1)大约为34mm以及PCB12的长度(L1)大约是86.5mm。接地平面14具有实质上与PCB12相同的宽度(W1)并具有大约75mm的长度(L2)。如上所述，天线10安装在PCB 12的与接地平面14相反的一侧11以及接地平面14没有在天线10的下面延伸。天线10具有大致平行于方向D1的边缘17。接地平面14具有大致平行于方向D1的边缘19。边缘17与边缘19的分隔距离(L3)，其在优选的实施例中大约为5mm。从PCB 12上的激发端18到天线10的馈电端20的馈线16的长度(L4)大约是16.5mm。馈线16的宽度(W2)大约是1.5mm。
电介质基板22可具有大约10mm的宽度(W3)(在方向D1上)，大约6mm的长度(L5)和大约1.2mm的高度(H1)。优选的电介质基板具有分别为7.5和0.0033的介电常数和损耗因数。可通过印刷并接着烘干多层电介质基板表面上的银基导体膏来将λ/4弯曲谐振器制作在电介质基板22中。
图4A和4B表示了除开基板22的弯曲谐振器24、26和馈电端20。弯曲谐振器24、26在实质上与谐振器24、26所在的各个平面垂直的方向上层叠。谐振器24、26之间的间隔(H2)可以大约为1mm。弯曲谐振器的优选宽度(W4)大约为0.75mm。
在优选实施例中，相邻部分29之间的间隔(S1)大约是1.15mm。
弯曲谐振器24、26在馈电端20通过至少一个导电通孔28被电连接。在图示的实施例中三个相邻通孔28被并排设置。
对于具有上述尺寸的优选实施例，弯曲谐振器24在大约2.36GHz处进行基频谐振，它在2.5GHz(这对应于基于工业标准的WiMax技术的频带1)处产生最佳匹配。弯曲谐振器24也在大约5.77GHz处进行更高阶的谐振，其在5.8GHz(这对应于WiMax频带3)处产生最佳匹配。上部的弯曲谐振器26在大约3.2GHz处谐振，并且由于馈线16中的谐振在大约4.26GHz处发生另一个谐振。最佳匹配发生在这两个谐振之间的3.5GHz(这对应于WiMax频带2)处。
图5是一个表示了频率和上述优选的天线结构8的反射损耗之间关系的曲线图。仿真数据用101表示以及测量数据用103表示。
图6是一个表示了频率和优选的天线结构8的阻抗的实部107和虚部109之间关系的曲线图。天线结构8的四个谐振用标记105突出。
本发明不限于本文所描述的实施方式，可以在不脱离本发明范围下被修改或变化。

Claims (16)

1.一种天线结构包括至少一个谐振器部件，一个接地平面和一个馈线，其中所述至少一个谐振器部件形状是弯曲的以使所述至少一个谐振器部件包括至少两个相邻的谐振器部分，以及其中所述至少一个谐振器部件被嵌入在电介质基板中以使当所述至少一个谐振器被第一工作频带中的信号激发时，所述至少一个谐振器在所述第一工作频带中谐振，以及当所述至少一个谐振器被至少一个其它工作频带中的信号激发时，在所述至少两个相邻的谐振器部分之间发生电磁耦合并使所述至少一个谐振器部件在所述至少一个其它工作频带中谐振。
2.如权利要求1所述的天线结构，其中所述至少一个谐振器部件包括一个第一谐振器部件，所述天线结构还包括一个第二谐振器部件，其中对于所述天线结构的一个工作频带，所述第二谐振器部件被设计成在处于所述工作频带一侧的一个频带中谐振，设置馈线和接地平面以使在处于所述工作频带另一侧的一个频带中发生谐振，其中，在使用中，所述第二谐振器部件的谐振与所述馈线和接地平面的谐振的联合作用使所述天线结构在所述工作频带中谐振。
3.如权利要求1所述的天线结构，其中所述至少一个谐振器部件包括至少一个拐角部分，所述至少一个拐角部分是弯曲的。
4.如权利要求1所述的天线结构，其中所述至少一个谐振器部件包括一个第一谐振器部件，所述天线结构还包括一个第二谐振器部件，所述第一和第二谐振器部件具有一个连接到所述馈线的单一的，共用的馈电端，并被设计成用于各个频带的各个四分之一波长谐振器。
5.如权利要求4所述的天线结构，其中所述第二谐振器部件被嵌入在所述电介质基板中。
6.如权利要求4所述的天线结构，其中所述第二谐振器部件形状是弯曲的。
7.如权利要求4所述的天线结构，其中所述第一谐振器部件位于第一平面中以及所述第二谐振器部件位于第二平面中，所述第一和第二平面实质上互相平行。
8.如权利要求1所述的天线结构包括一个谐振器组件，其包含嵌入在所述电介质基板中的所述至少一个谐振器部件，所述至少一个谐振器部件位于第一平面中，所述接地平面与所述谐振器组件分隔以使所述接地平面在与所述第一平面实质垂直的方向上不与所述至少一个谐振器部件重叠。
9.如权利要求8所述的天线结构，其中所述接地平面实质上相对于所述第一平面平行设置。
10.如权利要求8所述的天线结构，其中所述至少一个谐振器部件具有一个单一的馈电端并自所述馈电端起大致沿第一方向延伸，所述谐振器组件与所述接地平面在与所述第一方向实质垂直的方向上分隔开。
11.如权利要求8所述的天线结构，其中所述至少一个谐振器部件具有一个单一的馈电端以及所述天线结构还包括与所述接地平面对齐设置的激发端，所述馈线在所述激发端和所述馈电端之间延伸。
12.如权利要求11所述的天线结构，其中所述至少一个谐振器部件自所述馈电端起大致沿第一方向延伸，所述馈线在与所述第一方向实质垂直的方向上延伸。
13.如权利要求11所述的天线结构，其中所述馈线包括实质上在馈电端和激发端之间的整个距离延伸的一段传输线长度。
14.如权利要求8所述的天线结构，设置在一个具有正面和反面的基板上，所述谐振器组件和所述馈线设置在所述正面上，所述接地平面设置在所述反面上。
15.一种天线结构包括一个接地平面，一个馈线，以及至少一个谐振器部件，其中对于所述天线结构的工作频带，所述至少一个谐振器部件被设计成在处于所述工作频带一侧的一个频带中谐振，设置馈线和接地平面以使在处于所述工作频带另一侧的一个频带中发生谐振，其中，在使用中，所述至少一个谐振器部件的谐振与所述馈线和接地平面的谐振的联合作用使所述天线结构在所述工作频带中谐振。
16.一种无线通信设备包括一个如权利要求1所述的天线结构。
CNA2006100656586A 2005-03-24 2006-03-21 层叠型多谐振器天线 Pending CN1841846A (zh)

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