WO2017113092A1 - 一种螺旋天线、天线和通信设备 - Google Patents

一种螺旋天线、天线和通信设备 Download PDF

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Publication number
WO2017113092A1
WO2017113092A1 PCT/CN2015/099409 CN2015099409W WO2017113092A1 WO 2017113092 A1 WO2017113092 A1 WO 2017113092A1 CN 2015099409 W CN2015099409 W CN 2015099409W WO 2017113092 A1 WO2017113092 A1 WO 2017113092A1
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Prior art keywords
hollow barrel
antenna
outer conductor
whip
radio frequency
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PCT/CN2015/099409
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English (en)
French (fr)
Inventor
郭義祥
杨华
尤国雄
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Hytera Communications Corp Ltd
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Hytera Communications Corp Ltd
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Priority to PCT/CN2015/099409 priority Critical patent/WO2017113092A1/zh
Publication of WO2017113092A1 publication Critical patent/WO2017113092A1/zh
Anticipated expiration legal-status Critical
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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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/27—Spiral antennas

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a helical antenna, an antenna, and a communication device.
  • the antenna bandwidth is generally extended by impedance matching.
  • the impedance matching is to form an impedance of several tens of ohms through the inner core and the outer conductor of the antenna radio interface, and then impedance matching to a certain frequency bandwidth. Thereby an extension of the antenna bandwidth is achieved.
  • Embodiments of the present invention provide a helical antenna, an antenna, and a communication device.
  • the capacitance of the antenna is improved by providing a component for increasing capacitance on the antenna, thereby realizing an extended frequency bandwidth.
  • a first aspect of the present invention provides a helical antenna, comprising: a radio frequency connector, a connecting conductor, a whip member, a spiral member, and a hollow barrel; wherein the radio frequency connector includes an inner core and an outer conductor;
  • the inner core is connected to the whip member, and the hollow barrel is sleeved on the portion of the whip member close to the radio frequency connector;
  • the outer conductor and the hollow barrel are connected by a connecting conductor
  • the spiral member is placed over the whip member and connected to the hollow barrel.
  • the hollow barrel is a cylindrical hollow barrel.
  • connection point of the connection conductor and the outer conductor is the ground point GND of the outer conductor.
  • each connecting conductor is connected to the outer conductor and the hollow barrel, respectively.
  • a second aspect of the present invention provides an antenna comprising: a radio frequency connector, a connecting conductor, a whip member, and a hollow barrel; wherein the radio frequency connector includes an inner core and an outer conductor;
  • the inner core is connected to the whip member, and the hollow barrel is sleeved on the portion of the whip member close to the radio frequency connector;
  • the outer conductor and the hollow barrel are connected by a connecting conductor.
  • the antenna further includes a spiral component
  • the spiral member is placed over the whip member and connected to the hollow barrel.
  • the hollow barrel is a cylindrical hollow barrel.
  • connection point of the connection conductor and the outer conductor is the ground point GND of the outer conductor.
  • each connecting conductor is connected to the outer conductor and the hollow barrel, respectively.
  • a third aspect of the present invention provides a helical antenna, comprising: a radio frequency connector, a whip member, a spiral member, and a hollow barrel; wherein the radio frequency connector includes an inner core and an outer conductor;
  • the inner core is coupled to the whip member, and the hollow barrel is sleeved at a portion of the whip member adjacent to the radio frequency connector;
  • the outer conductor is connected to the hollow barrel
  • the spiral member is sleeved on the whip member and coupled to the hollow barrel.
  • a fourth aspect of the present invention provides an antenna, including: a radio frequency connector, a whip member, and a hollow barrel; wherein the radio frequency connector includes an inner core and an outer conductor;
  • the inner core is coupled to the whip member, and the hollow barrel is sleeved at a portion of the whip member adjacent to the radio frequency connector;
  • the outer conductor is coupled to the hollow barrel.
  • a fifth aspect of the present invention provides a communication device, comprising: the antenna of any of the alternative aspects of the second aspect or the second aspect.
  • the frequency bandwidth is increased by impedance matching, resulting in low radiation efficiency of the antenna.
  • the antenna and the communication device provided by the embodiments of the present invention the antenna is improved by providing a component for increasing capacitance on the antenna. Capacitance, thus achieving an extended bandwidth.
  • FIG. 1 is a schematic structural view of a helical antenna according to an embodiment of the present invention.
  • FIG. 2 is an enlarged schematic view showing a partial structure of a helical antenna according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a measured curve of a capacitance-enhancing spectral width of a helical antenna according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of an antenna according to an embodiment of the present invention.
  • FIG. 5 is another schematic structural diagram of an antenna according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
  • Embodiments of the present invention provide a helical antenna, an antenna, and a communication device.
  • the capacitance of the antenna is improved by providing a component for increasing capacitance on the antenna, thereby realizing an extended frequency bandwidth. The details are described below separately.
  • FIG. 1 is a schematic structural diagram of a helical antenna according to an embodiment of the present invention.
  • FIG. 2 is an enlarged schematic view showing a partial structure of a helical antenna according to an embodiment of the present invention.
  • a helical antenna provided by an embodiment of the present invention includes a radio frequency connector 10, a connecting conductor 20, a hollow barrel 30, a whip member 40, and a spiral member 50.
  • the radio frequency connector 10 includes an inner core 101 and an outer conductor 102. .
  • the inner core 101 is coupled to the whip member 40, the inner core 101 may be welded to the whip member 40, the hollow barrel 30 is placed over the portion of the whip member 40 adjacent to the radio frequency connector 10, and the outer conductor 102 and the hollow barrel 30 are passed through the connecting conductor 20.
  • the spiral member 50 is attached to the whip member 40, and the spiral member 50 is coupled to the hollow tub 30, and the spiral member 50 can be welded to the hollow tub 30.
  • the hollow barrel 30 is sleeved on the whip 40 to form a capacitive structure, the inner core 101 and the whip 40 are connected to form a positive pole of the capacitor, and the hollow barrel 30 and the outer conductor 102 are connected by a connecting conductor 20 to form a negative pole of the capacitor, so that the present invention
  • the hollow barrel 30 and the whip 40 form a capacitance, thereby increasing the capacitance of the helical antenna.
  • the hollow barrel 30 is a cylindrical hollow barrel, which ensures a balance of capacitance and thus provides a stable large-width spectrum.
  • connection point of the connection conductor 20 and the outer conductor 102 is the ground point (Ground, GND) of the outer conductor 102.
  • each of the connecting conductors 20 is connected to the outer conductor 102 and the hollow barrel 30, respectively.
  • FIG. 3 is a schematic diagram of a measured curve of the increased capacitive rear spectral width of the helical antenna according to the embodiment of the present invention.
  • the spectrum width has reached several hundred megahertz, and the spectrum width of the impedance matching method in the prior art is usually only a few tens of megahertz. It can be seen that the helical antenna provided by the embodiment of the present invention can be doubled. The spectral width of the antenna.
  • a connecting conductor may not be needed.
  • the outer conductor can be directly connected to the hollow barrel without connecting through the connecting conductor.
  • a capacitance can be formed between the hollow barrel and the whip member, thereby increasing the capacitance of the helical antenna and increasing the spectral width of the antenna.
  • FIG. 4 is a schematic structural diagram of an antenna according to an embodiment of the present invention.
  • an antenna provided by an embodiment of the present invention includes a radio frequency connector 10, a connecting conductor 20, a hollow barrel 30, and a whip member 40.
  • the radio frequency connector 10 includes an inner core 101 and an outer conductor 102.
  • the inner core 101 is coupled to the whip member 40, the inner core 101 may be welded to the whip member 40, the hollow barrel 30 is placed over the portion of the whip member 40 adjacent to the radio frequency connector 10, and the outer conductor 102 and the hollow barrel 30 are passed through the connecting conductor 20. connection.
  • the hollow barrel 30 is sleeved on the whip 40 to form a capacitive structure, the inner core 101 and the whip 40 are connected to form a positive pole of the capacitor, and the hollow barrel 30 and the outer conductor 102 are connected by a connecting conductor 20 to form a negative pole of the capacitor, so that the present invention
  • the hollow barrel 30 and the whip 40 form a capacitance, thereby increasing the capacitance of the helical antenna.
  • FIG. 5 is another schematic structural diagram of an antenna according to an embodiment of the present invention.
  • an embodiment of the antenna provided by the embodiment of the present invention further includes a spiral member 50, the spiral member 50 is sleeved on the whip member 40, and the spiral member 50 is connected to the hollow barrel 30, and the spiral member 50 can be welded to the hollow barrel. 30 on.
  • the hollow barrel 30 is a cylindrical hollow barrel, which ensures a balance of capacitance and thus provides a stable large-width spectrum.
  • connection point of the connection conductor 20 and the outer conductor 102 is the ground point (Ground, GND) of the outer conductor 102.
  • each of the connecting conductors 20 is connected to the outer conductor 102 and the hollow barrel 30, respectively.
  • a connecting conductor may not be needed.
  • the outer conductor can be directly connected to the hollow barrel without connecting through the connecting conductor.
  • a capacitance can be formed between the hollow barrel and the whip member, thereby increasing the capacitance of the helical antenna and increasing the spectral width of the antenna.
  • FIG. 6 is a schematic diagram of an embodiment of a communication device according to an embodiment of the present invention.
  • the helical antenna described in the portion of Fig. 1 or Fig. 2, or the antenna described in the sections of Figs. 4 and 5, is mounted on the communication device.

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Abstract

一种螺旋天线，包括：射频接头（10）、连接导体（20）、鞭状部件（40）、螺旋部件（50）和空心桶（30）；其中，所述射频接头（10）包括内芯（101）和外导体（102）；所述内芯（101）与所述鞭状部件（40）连接，所述空心桶（30）套在所述鞭状部件（40）靠近所述射频接头（10）的部分；所述外导体（102）和所述空心桶（30）通过所述连接导体（20）连接；所述螺旋部件（50）套在所述鞭状部件（40）上并与所述空心桶（30）连接。

Description

一种螺旋天线、天线和通信设备 技术领域
本发明涉及通信技术领域，具体涉及一种螺旋天线、天线和通信设备。
背景技术
随着通信技术的快速发展，对天线的需求越来越大，现有的天线频带窄，各种频段都需要配备不同频段的天线，天线在工作时需要在不同的频段反复切换，这导致通信效率低下，由此也说明，天线的频带宽度直接影响着业务质量和通信效率。
现有技术中，通常是通过阻抗匹配的方法来实现天线频带宽度的扩展，阻抗匹配就是通过天线射频接口的内芯和外导体形成几十欧姆的阻抗，然后通过阻抗匹配到一定的频带宽度，从而实现天线频带宽度的扩展。
但这种阻抗匹配的方案会降低天线的辐射效率。
发明内容
本发明实施例提供一种螺旋天线、天线和通信设备，通过在天线上设置增加电容的部件来提高天线的电容性，从而实现扩展频带宽度。
本发明第一方面提供一种螺旋天线，包括：射频接头、连接导体、鞭状部件、螺旋部件和空心桶；其中，射频接头包括内芯和外导体；
内芯与鞭状部件连接，空心桶套在鞭状部件靠近射频接头的部分；
外导体和空心桶通过连接导体连接；
螺旋部件套在鞭状部件上并与空心桶连接。
可选地，空心桶为圆柱形空心桶。
可选地，连接导体与外导体的连接点为外导体的接地点GND。
可选地，连接导体有多个，每个连接导体都分别连接外导体和空心桶。
本发明第二方面提供一种天线，包括：射频接头、连接导体、鞭状部件和空心桶；其中，射频接头包括内芯和外导体；
内芯与鞭状部件连接，空心桶套在鞭状部件靠近射频接头的部分；
外导体和空心桶通过连接导体连接。
可选地，天线还包括螺旋部件，
螺旋部件套在鞭状部件上并与空心桶连接。
可选地，空心桶为圆柱形空心桶。
可选地，连接导体与外导体的连接点为外导体的接地点GND。
可选地，连接导体有多个，每个连接导体都分别连接外导体和空心桶。
本发明第三方面提供一种螺旋天线，包括：射频接头、鞭状部件、螺旋部件和空心桶；其中，所述射频接头包括内芯和外导体；
所述内芯与所述鞭状部件连接，所述空心桶套在所述鞭状部件靠近所述射频接头的部分；
所述外导体和所述空心桶连接；
所述螺旋部件套在所述鞭状部件上并与所述空心桶连接。
本发明第四方面提供一种天线，包括：射频接头、鞭状部件和空心桶；其中，所述射频接头包括内芯和外导体；
所述内芯与所述鞭状部件连接，所述空心桶套在所述鞭状部件靠近所述射频接头的部分；
所述外导体和所述空心桶连接。
本发明第五方提供一种通信设备，包括：第二方面或第二方面任一可选的实现方式的天线。
与现有技术中通过阻抗匹配的方式来增加频带宽度，导致天线的辐射效率低下相比，本发明实施例提供的螺旋天线、天线和通信设备，通过在天线上设置增加电容的部件来提高天线的电容性，从而实现扩展频带宽度。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例中螺旋天线的结构示意图；
图2是本发明实施例中螺旋天线的局部结构放大示意图；
图3为本发明实施例中的螺旋天线的增加电容性后频谱宽度的实测曲线示意图；
图4是本发明实施例中天线的结构示意图；
图5是本发明实施例中天线的另一结构示意图；
图6是本发明实施例中通信设备的一结构示意图。
具体实施方式
本发明实施例提供一种螺旋天线、天线和通信设备，通过在天线上设置增加电容的部件来提高天线的电容性，从而实现扩展频带宽度。以下分别进行详细说明。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图1为本发明实施例中螺旋天线的结构示意图。图2为本发明实施例中螺旋天线的局部结构放大示意图。
参阅图1和图2，本发明实施例提供的螺旋天线包括射频接头10、连接导体20、空心桶30、鞭状部件40和螺旋部件50；其中，射频接头10包括内芯101和外导体102。
内芯101与鞭状部件40连接，内芯101可以是焊接在鞭状部件40上，空心桶30套在鞭状部件40靠近射频接头10的部分，外导体102和空心桶30通过连接导体20连接；螺旋部件50套在鞭状部件40上，并且螺旋部件50与空心桶30连接，螺旋部件50可以焊接在空心桶30上。
空心桶30套在鞭状部件40上形成容性结构，内芯101与鞭状部件40连接构成电容的正极，空心桶30与外导体102通过连接导体20连接，构成电容的负极，这样本发明实施例所提供的螺旋天线在工作时，空心桶30与鞭状部件40就会形成电容，从而增加了螺旋天线的电容性。
空心桶30为圆柱形空心桶，这样可以确保电容的平衡，从而可以提供稳定的大宽度频谱。
连接导体20与外导体102的连接点为外导体102的接地点(Ground，GND)。
连接导体20可以有多个，每个连接导体20都分别连接外导体102和空心桶30。
电容性增加可导致螺旋天线的频谱宽度变宽。例如，如图3所示，图3为本发明实施例中的螺旋天线的增加电容性后频谱宽度的实测曲线示意图。
因为天线的品质因数Q值越大则带宽越窄，所以为了增加带宽需要减小天线的Q值，而在串联回路中Q＝1/ω0RC，其中，ω0为频率、R为电阻值、C为电容值，在ω0和R不变的情况下，C值变大，则Q值变小，也就说说增加电容的可以减小Q值，从而增加带宽。
如图3所示，频谱宽度已经达到几百兆赫兹，现有技术中的阻抗匹配方式的频谱宽度通常只有几十兆赫兹，由此可见，采用本发明实施例所提供的螺旋天线可以加倍增加天线的频谱宽度。
需要说明的是，本发明提供的螺旋天线的另一种可以实现的方案中，也可以不需要连接导体，
外导体可以和空心桶直接连接，而不需要通过连接导体连接，同样可以在空心桶与鞭状部件之间形成电容，从而增加了螺旋天线的电容性，增加天线的频谱宽度。
图4为本发明实施例中天线的结构示意图。
参阅图4，本发明实施例提供的天线包括射频接头10、连接导体20、空心桶30和鞭状部件40；其中，射频接头10包括内芯101和外导体102。
内芯101与鞭状部件40连接，内芯101可以是焊接在鞭状部件40上，空心桶30套在鞭状部件40靠近射频接头10的部分，外导体102和空心桶30通过连接导体20连接。
空心桶30套在鞭状部件40上形成容性结构，内芯101与鞭状部件40连接构成电容的正极，空心桶30与外导体102通过连接导体20连接，构成电容的负极，这样本发明实施例所提供的螺旋天线在工作时，空心桶30与鞭状部件40就会形成电容，从而增加了螺旋天线的电容性。
图5为本发明实施例中天线的另一结构示意图。
参阅图5，本发明实施例提供的天线的一实施例还包括螺旋部件50，螺旋部件50套在鞭状部件40上，并且螺旋部件50与空心桶30连接，螺旋部件50可以焊接在空心桶30上。
空心桶30为圆柱形空心桶，这样可以确保电容的平衡，从而可以提供稳定的大宽度频谱。
连接导体20与外导体102的连接点为外导体102的接地点(Ground，GND)。
连接导体20可以有多个，每个连接导体20都分别连接外导体102和空心桶30。
电容性增加可导致螺旋天线的频谱宽度变宽。例如，还可以参阅图3。频谱宽度已经达到几百兆赫兹，现有技术中的阻抗匹配方式的频谱宽度通常只有几十兆赫兹，由此可见，采用本发明实施例所提供的螺旋天线可以加倍增加天线的频谱宽度。
需要说明的是，本发明提供的天线的另一种可以实现的方案中，也可以不需要连接导体，
外导体可以和空心桶直接连接，而不需要通过连接导体连接，同样可以在空心桶与鞭状部件之间形成电容，从而增加了螺旋天线的电容性，增加天线的频谱宽度。
图6为本发明实施例中通信设备的一实施例示意图。
参阅图6，通信设备上安装有图1或图2部分所描述的螺旋天线，或者图4和图5部分所描述的天线。
无论通信设备上安装有哪种天线，都可以提供大带宽的频谱资源。
通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：ROM、RAM、磁盘或光盘等。
以上对本发明实施例所提供的螺旋天线、天线以及通信设备进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变 之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (11)

  1. 一种螺旋天线，其特征在于，包括：射频接头、连接导体、鞭状部件、螺旋部件和空心桶；其中，所述射频接头包括内芯和外导体；
    所述内芯与所述鞭状部件连接，所述空心桶套在所述鞭状部件靠近所述射频接头的部分；
    所述外导体和所述空心桶通过所述连接导体连接；
    所述螺旋部件套在所述鞭状部件上并与所述空心桶连接。
  2. 根据权利要求1所述的螺旋天线，其特征在于，所述空心桶为圆柱形空心桶。
  3. 根据权利要求1或2所述的螺旋天线，其特征在于，所述连接导体与所述外导体的连接点为所述外导体的接地点GND。
  4. 根据权利要求1或2所述的螺旋天线，其特征在于，所述连接导体有多个，每个连接导体都分别连接所述外导体和所述空心桶。
  5. 一种天线，其特征在于，包括：射频接头、连接导体、鞭状部件和空心桶；其中，所述射频接头包括内芯和外导体；
    所述内芯与所述鞭状部件连接，所述空心桶套在所述鞭状部件靠近所述射频接头的部分；
    所述外导体和所述空心桶通过所述连接导体连接。
  6. 根据权利要求5所述的天线，其特征在于，所述天线还包括螺旋部件，
    所述螺旋部件套在所述鞭状部件上并与所述空心桶连接。
  7. 根据权利要求5或6所述的天线，其特征在于，所述空心桶为圆柱形空心桶。
  8. 根据权利要求5或6所述的天线，其特征在于，所述连接导体与所述外导体的连接点为所述外导体的接地点GND。
  9. 根据权利要求5或6所述的天线，其特征在于，所述连接导体有多个，每个连接导体都分别连接所述外导体和所述空心桶。
  10. 一种螺旋天线，其特征在于，包括：射频接头、鞭状部件、螺旋部件和空心桶；其中，所述射频接头包括内芯和外导体；
    所述内芯与所述鞭状部件连接，所述空心桶套在所述鞭状部件靠近所述射频接头的部分；
    所述外导体和所述空心桶连接；
    所述螺旋部件套在所述鞭状部件上并与所述空心桶连接。
  11. 一种通信设备，其特征在于，包括：如权利要求5-9任一所述的天线。
PCT/CN2015/099409 2015-12-29 2015-12-29 一种螺旋天线、天线和通信设备 Ceased WO2017113092A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1751414A (zh) * 2002-11-27 2006-03-22 松下电器产业株式会社 芯片天线
CN201556702U (zh) * 2009-06-12 2010-08-18 深圳市康源新通信技术有限公司 螺旋天线结构
CN102509845A (zh) * 2011-09-26 2012-06-20 航天恒星科技有限公司 一种多模相位中心稳定的掩星天线
CN204680743U (zh) * 2015-03-31 2015-09-30 嘉善金昌电子有限公司 复合螺旋gps导航天线

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1751414A (zh) * 2002-11-27 2006-03-22 松下电器产业株式会社 芯片天线
CN201556702U (zh) * 2009-06-12 2010-08-18 深圳市康源新通信技术有限公司 螺旋天线结构
CN102509845A (zh) * 2011-09-26 2012-06-20 航天恒星科技有限公司 一种多模相位中心稳定的掩星天线
CN204680743U (zh) * 2015-03-31 2015-09-30 嘉善金昌电子有限公司 复合螺旋gps导航天线

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