WO2011140990A1 - Feed network and antenna - Google Patents

Feed network and antenna Download PDF

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Publication number
WO2011140990A1
WO2011140990A1 PCT/CN2011/073978 CN2011073978W WO2011140990A1 WO 2011140990 A1 WO2011140990 A1 WO 2011140990A1 CN 2011073978 W CN2011073978 W CN 2011073978W WO 2011140990 A1 WO2011140990 A1 WO 2011140990A1
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WO
WIPO (PCT)
Prior art keywords
radio frequency
feed network
frequency transmission
transmission
metal
Prior art date
Application number
PCT/CN2011/073978
Other languages
French (fr)
Chinese (zh)
Inventor
李建平
谢国庆
肖伟宏
段德钦
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CA2803456A priority Critical patent/CA2803456C/en
Priority to EP15165234.4A priority patent/EP2924801B1/en
Priority to EP11780211.6A priority patent/EP2573865A4/en
Publication of WO2011140990A1 publication Critical patent/WO2011140990A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/08—Microstrips; Strip lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/08—Microstrips; Strip lines
    • H01P3/088—Stacked transmission lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/526—Electromagnetic shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a feed network and an antenna.
  • PIM Passive InterModulation
  • a passive device In wireless communication systems, Passive InterModulation (PIM) becomes an important factor limiting system capacity as voice and data information is required to pass through within a fixed bandwidth.
  • PIM is a kind of frequency interference caused by the nonlinear characteristics of various passive components in the transmitting system. For example, in a high-power, multi-channel system, the nonlinearity of the passive device will produce a higher harmonic with respect to the operating frequency. Waves, these harmonics are mixed with the operating frequency to produce a new set of frequencies, just as two or more frequencies in an active device are mixed together in a nonlinear device to produce a spurious signal.
  • the spurious intermodulation signal falls within the receiving band of the base station, the sensitivity of the receiver is reduced, resulting in a reduction in call quality or system carrier-to-interference ratio (C/I), and a reduction in the capacity of the communication system.
  • PIM is caused by many factors, including poor mechanical contact of the feeder network.
  • a typical communication antenna consists of several radiating elements, a feed network and a reflector.
  • the function of the feed network is to distribute the signals from a single connector to all dipole antennas.
  • Feed networks are typically constructed of controlled impedance transmission lines.
  • a prior art method of isolating a plurality of radio frequency transmission areas is as shown in FIG.
  • the adjacent RF transmission region 7 and the RF transmission region 8 are separated by a thin metal barrier 2 and a metal spacer 6, and the metal spacers are connected by screws 1 1 and screws 12.
  • the multi-band antenna and the smart antenna's feed network are complex in structure and critical to the reliability of the entire antenna. Therefore, a compact, stable and reliable feeder network is a necessary condition for ensuring multi-band and multi-antenna performance.
  • the metal connection is complicated and the connection is large, which is easy to cause the antenna PI M index to be unstable, the reliability is low, the system receives the total bandwidth power (RTWP, Received Total Wi de band Power) or the received signal strength.
  • the indication (RSSI, Received Signal Strength Indication) deteriorates.
  • Embodiments of the present invention provide a feed network and an antenna to reduce passive intermodulation interference, improve antenna reliability, and improve mobile communication quality.
  • the embodiment of the present invention provides a feed network, including: at least two independent radio frequency transmission areas, at least one signal line is disposed in at least one radio frequency transmission area of the radio frequency transmission area, and the at least two The individual RF transmission regions are separated by a metal spacer, one physical surface of the metal barrier is exposed to one of the at least two independent RF transmission regions, and another physical surface of the metal barrier Exposed to another of the at least two independent RF transmission areas.
  • An embodiment of the present invention provides an antenna, and the foregoing embodiment of the present invention provides a feed network.
  • the feed network provided by the embodiment of the present invention uses a metal compartment to separate the RF transmission areas, and is not connected by screws or rivets. Therefore, the passive intermodulation interference caused by the metal connection is reduced, and the reliability of the antenna is improved. And stability, improve system RTWP or RSSI indicators, improve mobile communication quality.
  • FIG. 1 is a schematic cross-sectional view of a feed network provided by the prior art
  • FIG. 2 is a three-dimensional schematic diagram of a feed network structure according to Embodiment 1 of the present invention
  • 3 is a schematic cross-sectional view of a feed network illustrated in FIG. 2 orthogonal to a signal transmission direction
  • FIG. 4 is a cross-sectional view of a feed network according to Embodiment 2 of the present invention orthogonal to a signal transmission direction;
  • FIG. 5 is a schematic cross-sectional view of a feed network according to Embodiment 3 of the present invention orthogonal to a signal transmission direction;
  • FIG. 6 is a schematic cross-sectional view of a feed network according to Embodiment 4 of the present invention orthogonal to a signal transmission direction;
  • FIG. 7 is a schematic cross-sectional view of a feed network according to Embodiment 5 of the present invention orthogonal to a signal transmission direction;
  • FIG. 8 is a schematic diagram of a multi-band antenna composition according to an embodiment of the present invention.
  • FIG. 3 is a three-dimensional schematic diagram of a feed network structure according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic diagram of a cross-section 27 orthogonal to the signal transmission direction in the feed network illustrated in FIG. 2.
  • the feed network includes at least two independent radio frequency transmission areas, which are respectively a radio frequency transmission area 21 and a radio frequency transmission area 22, and each radio frequency transmission area is provided with a signal line.
  • each radio frequency transmission area is provided with a signal line.
  • At least one of the RF transmission areas is provided with at least two signal lines.
  • the RF transmission area 21 is provided with a signal line 23 and a signal line 24.
  • the at least two independent radio frequency transmission regions in the feed network are separated by a metal spacer 26 instead of using two rivets or screws.
  • the metal spacer 26 has a certain thickness, and therefore, one physical surface thereof is exposed to one of the at least two independent radio frequency transmission regions, and the other physical surface is exposed to the at least two Another RF transmission area in a separate RF transmission area, for example, one physical surface 261 of the metal compartment 26 is exposed to the RF transmission area 21 and the other physical surface 262 is exposed to the other RF transmission area 22.
  • the feed network provided by the embodiment of the present invention does not have an unstable PIM index caused by unreliable connections.
  • Inventive embodiment 2 provides another feed network.
  • a second embodiment of the present invention provides a cross-sectional view of another feed network orthogonal to the direction of signal transmission.
  • the metal spacer includes a plurality of physically continuous metal spacers with gaps between the plurality of physically continuous metal spacers.
  • the metal spacer 26 exemplified in FIG. 2 can be replaced with a physically continuous metal spacer 461 and a metal spacer 462, which is the metal illustrated in FIG.
  • the barrier layer 26 can be replaced with the metal spacer 461 and the metal spacer 462, the metal spacer 461 and the metal spacer 462 are on the same plane, and if the gap therebetween is compensated, it can be regarded as the same metal spacer. Due to the gap between the metal barriers, signal lines or signals can pass therethrough to enable the interaction of information between two adjacent RF transmission regions or the coupling between the two RF transmission regions.
  • the metal spacer 56 is still a metal spacer, but unlike the metal spacer 26 illustrated in Figure 2, the metal spacer 56 has apertures (shown by dashed lines in the figure). ), the signal line or signal can also pass through, and still enable the interaction of information between two adjacent RF transmission areas or the coupling between two RF transmission areas.
  • metal objects such as aluminum alloy, alloy or copper may be placed in the gap (or aperture) of the example feed network of Figure 4 (or Figure 5).
  • part of the metal object or medium is stored in one RF transmission area of two independent RF transmission areas, and the other part is stored in another RF transmission area of two independent RF transmission areas.
  • a metal object or medium can be placed in the gap, as shown in Figure 6.
  • a metal object or medium 69 is partially stored in the RF transmission area 21 and another portion is stored in the RF transmission area 22.
  • the erection of metal objects or media in the apertures of the example feed network of Figure 5 is similar to the erection of metal objects or media in the gaps of the example feed network of Figure 4 and will not be described.
  • the feeding network illustrated in FIGS. 2 to 6 can be made into a closed structure or a half. Closed structure. For example, except for the two ends of the signal transmission direction, the rest of the RF transmission area is fully enclosed or partially enclosed. As shown in FIG. 7, the RF transmission area 21 is partially enclosed, and the RF transmission area 22 is fully enclosed. of.
  • the feed network provided by the embodiment of the present invention uses a metal compartment to separate the RF transmission areas, and is not connected by screws or rivets. Therefore, the passive intermodulation interference caused by the metal connection is reduced, and the reliability of the antenna is improved. And stability, improve the system RTWP or RSSI indicators, improve the quality of mobile communication, at the same time, because the metal compartment is a continuous material layer, no additional size is needed for connection, therefore, the feed network provided by the invention is compact in structure,
  • the miniaturization of antennas, especially the miniaturization of multi-band and multi-system antennas establishes the necessary technical basis to reduce the antenna volume and wind load and reduce the installation environment requirements of the antenna.
  • FIG. 8 is a schematic diagram showing the composition of a multi-band antenna according to an embodiment of the present invention. For convenience of description, only parts related to the present invention are shown.
  • the antenna includes a plurality of radiation/receiving units 801, a feed network 803 provided by an embodiment of the present invention, a calibration network 804, and a dielectric substrate 805.
  • the radiation/receiving unit 801 is for radiating a wireless signal or receiving a wireless signal from the outside, and the feed network 803 can be printed on the dielectric substrate 805 for distributing signals from a single connector to the respective radiation/receiving units 801.
  • the calibration network 804 is used to perform real-time calibration of the amplitude phase of each of the radiation/receiving units 801 while the antenna system is operating.
  • the feeding network of the present invention uses a metal compartment to separate the RF transmission areas, not by screws or rivets, the passive intermodulation interference caused by the metal connection is reduced, and the reliability and stability of the antenna are improved. Improve the RTWP or RSSI indicator of the system and improve the quality of mobile communication.
  • the metal compartment is a continuous material layer and does not require additional size to be connected, the feed network provided by the present invention is compact in structure, and the antenna is miniaturized. In particular, the miniaturization of multi-band and multi-system antennas establishes the necessary technical basis to reduce the antenna volume and wind load and reduce the installation environment requirements of the antenna.
  • a feed network and an antenna provided by an embodiment of the present invention are described in detail above.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
  • Transceivers (AREA)
  • Telephone Set Structure (AREA)

Abstract

A feed network and an antenna are provided in the embodiments of the present invention, for reducing the passive intermodulation interference, improving the reliability and stability of mobile communication quality of the antenna. The feed network includes at least two separate radio frequency transmission areas, at least two signal lines are built in at least one radio frequency transmission area of the radio frequency transmission areas, and the at least two separate radio frequency transmission areas are separated by a metal interlayer. One physical surface of the metal interlayer is exposed to one radio frequency transmission area of the at least two separate radio frequency transmission areas, and the other physical surface of the metal interlayer is exposed to the other radio frequency transmission area of the at least two separate radio frequency transmission areas. In the feed network of the present invention, the radio frequency transmission areas are separated by the metal interlayer instead of being connected by bolts or rivets; thus passive intermodulation interference caused by metal connection is reduced, and the reliability and stability of antennas, the criterion of Received Total Wide band Power (RTWP) and Received Signal Strength Indication (RSSI) of a system, and quality of mobile communication are improved.

Description

一种馈电网络和天线 本申请要求于 2010年 6月 29日提交中国专利局， 申请号为 201010215927.9, 发明名称为"一种馈电网络和天线"的中国专利申请的优先权，其全部内容通过 引用结合在本申请中。 技术领域  The present invention claims the priority of the Chinese patent application entitled "A Feed Network and Antenna", which is filed on June 29, 2010, the Chinese Patent Office, the application No. 201010215927.9, the entire contents of which is incorporated herein by reference. This is incorporated herein by reference. Technical field
本发明涉及无线通信领域， 尤其涉及一种馈电网络和天线。  The present invention relates to the field of wireless communications, and in particular, to a feed network and an antenna.
背景技术 Background technique
在无线通信***中， 随着固定带宽内需要通过的语音和数据信息日益 增加， 无源互调 ( Passive InterModulation , PIM ) 成为制约***容量的一 个重要因素。 PIM是由发射***中各种无源器件的非线性特性 )起的一种频 率干扰， 例如， 在大功率、 多信道***中， 无源器件的非线性会产生相对于工 作频率更高次谐波， 这些谐波与工作频率混合会产生一组新的频率， 如同在 有源器件中两个或更多的频率在非线性器件中混合在一起便产生杂散信号 一样。 当杂散互调信号落在基站的接收频带内， 接收机的灵敏度就会降低， 从而导致通话质量或***载波干扰比 （C/I ) 的降低， 和通信***的容量减 少。 PIM由许多因素引发， 其中包括馈电网络机械接触不良等。  In wireless communication systems, Passive InterModulation (PIM) becomes an important factor limiting system capacity as voice and data information is required to pass through within a fixed bandwidth. PIM is a kind of frequency interference caused by the nonlinear characteristics of various passive components in the transmitting system. For example, in a high-power, multi-channel system, the nonlinearity of the passive device will produce a higher harmonic with respect to the operating frequency. Waves, these harmonics are mixed with the operating frequency to produce a new set of frequencies, just as two or more frequencies in an active device are mixed together in a nonlinear device to produce a spurious signal. When the spurious intermodulation signal falls within the receiving band of the base station, the sensitivity of the receiver is reduced, resulting in a reduction in call quality or system carrier-to-interference ratio (C/I), and a reduction in the capacity of the communication system. PIM is caused by many factors, including poor mechanical contact of the feeder network.
典型的通信天线由若干辐射元件、馈电网络和反射器构成。馈电网络的作 用是把来自单个连接器的信号分配给所有的偶极天线。馈电网络通常由受控的 阻抗传输线构成。  A typical communication antenna consists of several radiating elements, a feed network and a reflector. The function of the feed network is to distribute the signals from a single connector to all dipole antennas. Feed networks are typically constructed of controlled impedance transmission lines.
对于多频段天线和智能天线的馈电网络，现有技术一种隔离其中多个射频 传输区域的方法如附图 1所示。这种方法是采用较薄的金属隔层 2和金属隔层 6将相邻的射频传输区域 7和射频传输区域 8隔离， 金属隔层之间使用螺釘 1 1和螺釘 12连接。  For a multi-band antenna and a smart antenna feed network, a prior art method of isolating a plurality of radio frequency transmission areas is as shown in FIG. In this method, the adjacent RF transmission region 7 and the RF transmission region 8 are separated by a thin metal barrier 2 and a metal spacer 6, and the metal spacers are connected by screws 1 1 and screws 12.
由于移动通信市场迅速发展使得通信网络的数量大幅增加，运营商对多频 段、 多***共享天线和同时满足天线小型化的需求越来越强烈。 多频段天线以 及智能天线的馈电网络结构复杂， 对整个天线的可靠性至关重要。 因此， 结构 紧凑、 稳定可靠的馈电网络是保证多频段、 多天线性能的一个必要条件。 而上述现有技术馈电网络中金属连接复杂， 连接较多， 容易造成天线 PI M指标不稳定， 可靠度低， ***接收总带宽功率（RTWP, Received Total Wi de band Power )或接收的信号强度指示 （RSSI, Received Signal Strength In dication ) 恶化。 Due to the rapid development of the mobile communication market, the number of communication networks has increased significantly, and operators have become more and more demanding for multi-band, multi-system sharing antennas and simultaneously satisfying the miniaturization of antennas. The multi-band antenna and the smart antenna's feed network are complex in structure and critical to the reliability of the entire antenna. Therefore, a compact, stable and reliable feeder network is a necessary condition for ensuring multi-band and multi-antenna performance. In the above-mentioned prior art feed network, the metal connection is complicated and the connection is large, which is easy to cause the antenna PI M index to be unstable, the reliability is low, the system receives the total bandwidth power (RTWP, Received Total Wi de band Power) or the received signal strength. The indication (RSSI, Received Signal Strength Indication) deteriorates.
发明内容 Summary of the invention
本发明实施例提供一种馈电网络和天线， 以减小无源互调干扰，提高天线 的可靠性、 稳定性移动通信质量。  Embodiments of the present invention provide a feed network and an antenna to reduce passive intermodulation interference, improve antenna reliability, and improve mobile communication quality.
本发明实施例提供一种馈电网络， 包括： 至少两个独立的射频传输区域， 所述射频传输区域的至少一个射频传输区域内架设有至少两根信号线，其特征 在于， 所述至少两个独立的射频传输区域使用金属隔层间隔， 所述金属隔层的 一个物理表面露于所述至少两个独立的射频传输区域中的一个射频传输区域， 所述金属隔层的另一个物理表面露于所述至少两个独立的射频传输区域中的 另一个射频传输区域。  The embodiment of the present invention provides a feed network, including: at least two independent radio frequency transmission areas, at least one signal line is disposed in at least one radio frequency transmission area of the radio frequency transmission area, and the at least two The individual RF transmission regions are separated by a metal spacer, one physical surface of the metal barrier is exposed to one of the at least two independent RF transmission regions, and another physical surface of the metal barrier Exposed to another of the at least two independent RF transmission areas.
本发明实施例提供一种天线， 包括上述本发明实施例提供一种馈电网络。 由于本发明实施例提供的馈电网络是采用金属隔层将射频传输区域间隔 开， 不是采用螺釘或铆釘连接， 因此， 降低了因为金属连接产生的无源互调干 扰， 提高了天线的可靠性和稳定性， 改善*** RTWP或 RSSI指标， 提高移动通 信质量。  An embodiment of the present invention provides an antenna, and the foregoing embodiment of the present invention provides a feed network. The feed network provided by the embodiment of the present invention uses a metal compartment to separate the RF transmission areas, and is not connected by screws or rivets. Therefore, the passive intermodulation interference caused by the metal connection is reduced, and the reliability of the antenna is improved. And stability, improve system RTWP or RSSI indicators, improve mobile communication quality.
附图说明 DRAWINGS
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需 要使用的附图作筒单地介绍， 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，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下， 还可以如这些附图获得其他的附图。  In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings may be obtained as shown in the drawings without the inventive labor.
图 1是现有技术提供的馈电网络截面示意图；  1 is a schematic cross-sectional view of a feed network provided by the prior art;
图 2是本发明实施例一提供的馈电网络结构的三维示意图； 图 3是附图 2示例的馈电网络中正交于信号传输方向的截面示意图； 图 4是本发明实施例二提供的馈电网络中正交于信号传输方向的截面示意 图； 2 is a three-dimensional schematic diagram of a feed network structure according to Embodiment 1 of the present invention; 3 is a schematic cross-sectional view of a feed network illustrated in FIG. 2 orthogonal to a signal transmission direction; FIG. 4 is a cross-sectional view of a feed network according to Embodiment 2 of the present invention orthogonal to a signal transmission direction;
图 5是本发明实施例三提供的馈电网络中正交于信号传输方向的截面示意 图；  5 is a schematic cross-sectional view of a feed network according to Embodiment 3 of the present invention orthogonal to a signal transmission direction;
图 6是本发明实施例四提供的馈电网络中正交于信号传输方向的截面示意 图；  6 is a schematic cross-sectional view of a feed network according to Embodiment 4 of the present invention orthogonal to a signal transmission direction;
图 7是本发明实施例五提供的馈电网络中正交于信号传输方向的截面示意 图；  7 is a schematic cross-sectional view of a feed network according to Embodiment 5 of the present invention orthogonal to a signal transmission direction;
图 8是本发明实施例提供的一种多频段天线组成示意图。  FIG. 8 is a schematic diagram of a multi-band antenna composition according to an embodiment of the present invention.
具体实施方式 detailed description
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， 本领域普通技术人员在没有做出创造 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。  BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without the creative work are all within the scope of the present invention.
请参阅附图 2, 是本发明实施例一提供的馈电网络结构的三维示意图， 附 图 3是附图 2示例的馈电网络中正交于信号传输方向的截面 27示意图。  Referring to FIG. 2, FIG. 3 is a three-dimensional schematic diagram of a feed network structure according to Embodiment 1 of the present invention, and FIG. 3 is a schematic diagram of a cross-section 27 orthogonal to the signal transmission direction in the feed network illustrated in FIG. 2.
在附图 2或附图 3所示的实施例中，馈电网络包括至少两个独立的射频传输 区域， 分别为射频传输区域 21和射频传输区域 22,每一个射频传输区域架设有 信号线， 例如， 信号线 23、 信号线 24和信号线 25等等。 其中， 至少一个射频传 输区域架设有至少两根信号线， 例如，射频传输区域 21架设有信号线 23和信号 线 24。  In the embodiment shown in FIG. 2 or FIG. 3, the feed network includes at least two independent radio frequency transmission areas, which are respectively a radio frequency transmission area 21 and a radio frequency transmission area 22, and each radio frequency transmission area is provided with a signal line. For example, the signal line 23, the signal line 24, the signal line 25, and the like. At least one of the RF transmission areas is provided with at least two signal lines. For example, the RF transmission area 21 is provided with a signal line 23 and a signal line 24.
与现有技术不同的是， 在本发明实施例中，馈电网络中所述至少两个独立 的射频传输区域使用金属隔层 26间隔，而不是使用铆釘或螺釘将两个金属隔层 连接。 在本发明实施例中， 金属隔层 26具有一定厚度， 因此， 其一个物理表面 露于所述至少两个独立的射频传输区域中的一个射频传输区域，另一个物理表 面露于所述至少两个独立的射频传输区域中的另一个射频传输区域， 例如，金 属隔层 26的一个物理表面 261露于射频传输区域 21 ,另一个物理表面 262露于另 一个射频传输区域 22。 Different from the prior art, in the embodiment of the present invention, the at least two independent radio frequency transmission regions in the feed network are separated by a metal spacer 26 instead of using two rivets or screws. Connected. In the embodiment of the present invention, the metal spacer 26 has a certain thickness, and therefore, one physical surface thereof is exposed to one of the at least two independent radio frequency transmission regions, and the other physical surface is exposed to the at least two Another RF transmission area in a separate RF transmission area, for example, one physical surface 261 of the metal compartment 26 is exposed to the RF transmission area 21 and the other physical surface 262 is exposed to the other RF transmission area 22.
由于金属隔层是在不使用螺釘或铆釘的情况下将射频传输区域间隔开，因 此， 本发明实施例提供的馈电网络不存在连接不牢靠导致的 PIM指标不稳定。  Since the metal spacers are spaced apart from each other without the use of screws or rivets, the feed network provided by the embodiment of the present invention does not have an unstable PIM index caused by unreliable connections.
考虑到某些情况下两个相邻的射频传输区域之间需要有信息的交互或两 个射频传输区域之间需要耦合， 这些交互或耦合可以采用无线方式，也可以采 用有线方式， 因此， 本发明实施例二提供另一种馈电网络。  Considering that in some cases, there is a need for information interaction between two adjacent RF transmission areas or a coupling between two RF transmission areas, these interactions or couplings may be wireless or wired, therefore, Inventive embodiment 2 provides another feed network.
请参阅附图 4 , 本发明实施例二提供另一种馈电网络中正交于信号传输方 向的截面图。 在本实施例中， 金属隔层包括若干物理连续的金属隔层， 该若干 物理连续的金属隔层之间具有缝隙。 例如， 在附图 4示例的馈电网络中， 附图 2 示例的金属隔层 26就可以使用物理连续的金属隔层 461和金属隔层 462代替，所 谓物理连续是指附图 2示例的金属隔层 26虽然可以使用金属隔层 461和金属隔 层 462代替， 但金属隔层 461和金属隔层 462在同一平面上， 如果将其间的缝隙 弥补， 可以视为同一金属隔层。 由于金属隔层之间有缝隙， 因此， 信号线或信 号可以从中穿过，实现两个相邻射频传输区域之间信息的交互或两个射频传输 区域之间的耦合。  Referring to Figure 4, a second embodiment of the present invention provides a cross-sectional view of another feed network orthogonal to the direction of signal transmission. In this embodiment, the metal spacer includes a plurality of physically continuous metal spacers with gaps between the plurality of physically continuous metal spacers. For example, in the feed network illustrated in FIG. 4, the metal spacer 26 exemplified in FIG. 2 can be replaced with a physically continuous metal spacer 461 and a metal spacer 462, which is the metal illustrated in FIG. Although the barrier layer 26 can be replaced with the metal spacer 461 and the metal spacer 462, the metal spacer 461 and the metal spacer 462 are on the same plane, and if the gap therebetween is compensated, it can be regarded as the same metal spacer. Due to the gap between the metal barriers, signal lines or signals can pass therethrough to enable the interaction of information between two adjacent RF transmission regions or the coupling between the two RF transmission regions.
对于附图 4示例的馈电网络， 尚有另一种替代的方案， 如附图 5所示。 在附 图 5示例的馈电网络中，金属隔层 56仍然是一个金属隔层，但与附图 2示例的金 属隔层 26不同的是， 金属隔层 56上具有孔隙 （图中虚线所示）， 信号线或信号 也可以从中穿过，仍然能够实现两个相邻射频传输区域之间信息的交互或两个 射频传输区域之间的耦合。 为了调节信号的电性能，例如，调节谐振频率等，可以在附图 4 (或附图 5 ) 示例馈电网络的缝隙（或孔隙） 中架设金属物件， 例如， 铝合金、 辞合金或铜 等， 或者在缝隙 （或孔隙） 中架设介质， 例如， FR4材料、 微波板材、 PS (聚 苯乙烯）、 PTFE (聚四氟乙烯）、 PE (聚乙烯）、 PA66 (聚酰胺）或 POM (聚 甲醛）等，金属物件或介质一部分存于两个独立的射频传输区域中的一个射频 传输区域， 另一部分存于两个独立的射频传输区域中的另一个射频传输区域。 For the feed network illustrated in Figure 4, there is another alternative, as shown in Figure 5. In the feed network illustrated in Figure 5, the metal spacer 56 is still a metal spacer, but unlike the metal spacer 26 illustrated in Figure 2, the metal spacer 56 has apertures (shown by dashed lines in the figure). ), the signal line or signal can also pass through, and still enable the interaction of information between two adjacent RF transmission areas or the coupling between two RF transmission areas. In order to adjust the electrical properties of the signal, for example, to adjust the resonant frequency, etc., metal objects such as aluminum alloy, alloy or copper may be placed in the gap (or aperture) of the example feed network of Figure 4 (or Figure 5). , or erect media in the gap (or pores), for example, FR4 material, microwave sheet, PS (polystyrene), PTFE (polytetrafluoroethylene), PE (polyethylene), PA66 (polyamide) or POM (poly Formaldehyde), etc., part of the metal object or medium is stored in one RF transmission area of two independent RF transmission areas, and the other part is stored in another RF transmission area of two independent RF transmission areas.
以附图 4的馈电网络为例， 可以在缝隙架设一个金属物件或介质，如附图 6 所示。 在附图 6所示馈电网络中， 金属物件或介质 69—部分存于射频传输区域 21 , 另一部分存于射频传输区域 22。 在附图 5示例馈电网络的孔隙中架设金属 物件或介质与在附图 4示例馈电网络的缝隙中架设金属物件或介质类似， 不做 赘述。  Taking the feed network of Figure 4 as an example, a metal object or medium can be placed in the gap, as shown in Figure 6. In the feed network of Figure 6, a metal object or medium 69 is partially stored in the RF transmission area 21 and another portion is stored in the RF transmission area 22. The erection of metal objects or media in the apertures of the example feed network of Figure 5 is similar to the erection of metal objects or media in the gaps of the example feed network of Figure 4 and will not be described.
为了使射频传输区域内的信号不受干扰或者使射频传输区域内的信号不 干扰外部信号， 例如， 电磁泄漏等， 附图 2至附图 6示例的馈电网络可以制成一 个封闭结构或半封闭结构。 例如， 除信号传输方向的两端之外， 射频传输区域 的其余部分是全封闭的或部分封闭的， 如附图 7所示， 射频传输区域 21是部分 封闭的， 射频传输区域 22是全封闭的。  In order to prevent signals in the RF transmission area from being disturbed or to make signals in the RF transmission area not interfere with external signals, for example, electromagnetic leakage, etc., the feeding network illustrated in FIGS. 2 to 6 can be made into a closed structure or a half. Closed structure. For example, except for the two ends of the signal transmission direction, the rest of the RF transmission area is fully enclosed or partially enclosed. As shown in FIG. 7, the RF transmission area 21 is partially enclosed, and the RF transmission area 22 is fully enclosed. of.
由于本发明实施例提供的馈电网络是采用金属隔层将射频传输区域间隔 开， 不是采用螺釘或铆釘连接， 因此， 降低了因为金属连接产生的无源互调干 扰， 提高了天线的可靠性和稳定性， 改善*** RTWP或 RSSI指标， 提高移动通 信质量， 与此同时， 由于金属隔层是连续物料层， 不需要额外尺寸来连接， 因 此， 本发明提供的馈电网络结构紧凑， 为实现天线小型化特别是多频段、 多系 统天线的小型化建立了必要技术基础， 减小天线体积和风负荷， 降低天线的安 装环境要求。 频段天线、 双极化天线、 长期演进***（Long Term Evolution, LTE )天线或 智能天线等。 如附图 8所示， 是本发明实施例提供的一种多频段天线组成示意 图， 为了便于说明， 仅仅示出了与本发明相关的部分。 该天线包括若干个辐射 /接收单元 801、 本发明实施例提供的馈电网络 803、 校准网络 804和介质基板 805。 辐射 /接收单元 801用于向外辐射无线信号或接收来自外部的无线信号， 馈电网络 803可以印制在介质基板 805上，用于将来自单个连接器的信号分配给 各个辐射 /接收单元 801 , 校准网络 804用于在天线***工作时对各辐射 /接收单 元 801的幅度相位进行实时校准。 The feed network provided by the embodiment of the present invention uses a metal compartment to separate the RF transmission areas, and is not connected by screws or rivets. Therefore, the passive intermodulation interference caused by the metal connection is reduced, and the reliability of the antenna is improved. And stability, improve the system RTWP or RSSI indicators, improve the quality of mobile communication, at the same time, because the metal compartment is a continuous material layer, no additional size is needed for connection, therefore, the feed network provided by the invention is compact in structure, The miniaturization of antennas, especially the miniaturization of multi-band and multi-system antennas, establishes the necessary technical basis to reduce the antenna volume and wind load and reduce the installation environment requirements of the antenna. Band antennas, dual-polarized antennas, Long Term Evolution (LTE) antennas or smart antennas. FIG. 8 is a schematic diagram showing the composition of a multi-band antenna according to an embodiment of the present invention. For convenience of description, only parts related to the present invention are shown. The antenna includes a plurality of radiation/receiving units 801, a feed network 803 provided by an embodiment of the present invention, a calibration network 804, and a dielectric substrate 805. The radiation/receiving unit 801 is for radiating a wireless signal or receiving a wireless signal from the outside, and the feed network 803 can be printed on the dielectric substrate 805 for distributing signals from a single connector to the respective radiation/receiving units 801. The calibration network 804 is used to perform real-time calibration of the amplitude phase of each of the radiation/receiving units 801 while the antenna system is operating.
由于本发明的馈电网络是采用金属隔层将射频传输区域间隔开，不是采用 螺釘或铆釘连接， 因此， 降低了因为金属连接产生的无源互调干扰， 提高了天 线的可靠性和稳定性， 改善*** RTWP或 RSSI指标， 提高移动通信质量， 与此 同时， 由于金属隔层是连续物料层， 不需要额外尺寸来连接， 因此， 本发明提 供的馈电网络结构紧凑， 为实现天线小型化特别是多频段、 多***天线的小型 化建立了必要技术基础， 减小天线体积和风负荷， 降低天线的安装环境要求。  Since the feeding network of the present invention uses a metal compartment to separate the RF transmission areas, not by screws or rivets, the passive intermodulation interference caused by the metal connection is reduced, and the reliability and stability of the antenna are improved. Improve the RTWP or RSSI indicator of the system and improve the quality of mobile communication. At the same time, since the metal compartment is a continuous material layer and does not require additional size to be connected, the feed network provided by the present invention is compact in structure, and the antenna is miniaturized. In particular, the miniaturization of multi-band and multi-system antennas establishes the necessary technical basis to reduce the antenna volume and wind load and reduce the installation environment requirements of the antenna.
以上对本发明实施例提供的一种馈电网络和天线进行了详细介绍，本文中  A feed network and an antenna provided by an embodiment of the present invention are described in detail above.
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。 It is a method for helping to understand the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there are changes in specific embodiments and application scopes. The contents of this specification are not to be construed as limiting the invention.

Claims

权 利 要 求 Rights request
1、 一种馈电网络， 包括至少两个独立的射频传输区域， 所述射频传输区 域的至少一个射频传输区域内架设有至少两根信号线， 其特征在于， 所述至少 两个独立的射频传输区域使用金属隔层间隔，所述金属隔层的一个物理表面露 于所述至少两个独立的射频传输区域中的一个射频传输区域，所述金属隔层的 另一个物理表面露于所述至少两个独立的射频传输区域中的另一个射频传输 区域。 A feed network comprising at least two independent radio frequency transmission areas, wherein at least one radio frequency transmission area of the radio frequency transmission area is provided with at least two signal lines, wherein the at least two independent radio frequencies are The transmission region is spaced apart by a metal barrier, one physical surface of the metal barrier is exposed to one of the at least two independent RF transmission regions, and another physical surface of the metal barrier is exposed Another RF transmission area of at least two independent RF transmission areas.
2、 如权利要求 1所述的馈电网络， 其特征在于， 所述射频传输区域在除信 号传输方向的两端之外的部分是全封闭的。  2. The feed network according to claim 1, wherein the portion of the radio frequency transmission region except for both ends of the signal transmission direction is fully enclosed.
3、 如权利要求 1所述的馈电网络， 其特征在于， 所述射频传输区域在除信 号传输方向的两端之外的部分是部分封闭的。  3. The feed network according to claim 1, wherein the portion of the radio frequency transmission region except for both ends of the signal transmission direction is partially closed.
4、 如权利要求 1所述的馈电网络， 其特征在于， 所述金属隔层包括若干物 理连续的金属隔层， 所述若干物理连续的金属隔层之间具有缝隙。  4. The feed network of claim 1 wherein said metal barrier comprises a plurality of physically continuous metal barriers, said plurality of physically continuous metal barriers having a gap therebetween.
5、 如权利要求 4所述的馈电网络， 其特征在于， 在所述缝隙架设有金属物 件，所述金属物件一部分存于所述至少两个独立的射频传输区域中的一个射频 传输区域，另一部分存于所述至少两个独立的射频传输区域中的另一个射频传 输区域。  5. The feed network of claim 4, wherein the gap frame is provided with a metal object, and a portion of the metal object is stored in one of the at least two independent RF transmission areas. Another portion is stored in another of the at least two independent radio frequency transmission regions.
6、 如权利要求 4所述的馈电网络， 其特征在于， 在所述缝隙架设有介质， 所述介质一部分存于所述至少两个独立的射频传输区域中的一个射频传输区 域， 另一部分存于所述至少两个独立的射频传输区域中的另一个射频传输区 域。  The feed network according to claim 4, wherein the gap frame is provided with a medium, and a part of the medium is stored in one of the at least two independent radio frequency transmission areas, and the other part is Another RF transmission area stored in the at least two independent RF transmission areas.
7、如权利要求 4所述的馈电网络，其特征在于，所述金属隔层上具有孔隙。 7. A feed network according to claim 4 wherein said metal barrier has apertures therein.
8、 如权利要求 7所述的馈电网络， 其特征在于， 在所述孔隙架设有金属物 件，所述金属物件一部分存于所述至少两个独立的射频传输区域中的一个射频 传输区域，另一部分存于所述至少两个独立的射频传输区域中的另一个射频传 输区域。 8. The feed network of claim 7, wherein the aperture frame is provided with a metal object, and a portion of the metal object is stored in one of the at least two independent RF transmission regions. Another portion of the transmission area is stored in another of the at least two independent radio frequency transmission areas.
9、 如权利要求 7所述的馈电网络， 其特征在于， 在所述孔隙架设有介质， 所述介质一部分存于所述至少两个独立的射频传输区域中的一个射频传输区 域， 另一部分存于所述至少两个独立的射频传输区域中的另一个射频传输区 域。  9. The feed network of claim 7, wherein the aperture frame is provided with a medium, a portion of the medium being stored in one of the at least two independent radio frequency transmission areas, and the other part Another RF transmission area stored in the at least two independent RF transmission areas.
10、 一种天线， 其特征在于， 所述天线包括权利要求 1至 9任意一项所述的 馈电网络。  An antenna, characterized in that the antenna comprises the feed network of any one of claims 1 to 9.
PCT/CN2011/073978 2010-06-29 2011-05-12 Feed network and antenna WO2011140990A1 (en)

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