CN201508909U - Multi-frequency antenna device - Google Patents

Multi-frequency antenna device Download PDF

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Publication number
CN201508909U
CN201508909U CN 200920173068 CN200920173068U CN201508909U CN 201508909 U CN201508909 U CN 201508909U CN 200920173068 CN200920173068 CN 200920173068 CN 200920173068 U CN200920173068 U CN 200920173068U CN 201508909 U CN201508909 U CN 201508909U
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CN
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Prior art keywords
antenna
matching circuit
multi
signal
band
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CN 200920173068
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Chinese (zh)
Inventor
冯轶刚
赵晨飞
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中兴通讯股份有限公司
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Abstract

The utility model discloses a multi-frequency antenna device which comprises a mainboard and an antenna; a signal feed point, more than two ground feed points and a signal transmission line are arranged on the mainboard, and the signal feed point is connected with the signal transmission line; the signal feed-in end of the antenna is conducted with the signal feed point, and each grounding end of the antenna is respectively conducted with the each responding ground feed point; each branch of the antenna is respectively connected with a match circuit. The multi-frequency antenna is adopted to greatly reduce the difficulty of each frequency range on meeting the demands.

Description

一种多频天线装置 A multi-frequency antenna device

技术领域 FIELD

[0001] 本实用新型涉及天线带宽扩展技术,尤其涉及一种多频天线装置。 [0001] The present invention relates to an antenna bandwidth extension technique, particularly to a multiband antenna device.

背景技术 Background technique

[0002] 目前,多频天线装置的结构大多如图1所示,包括:天线11、主板12 ;其中,天线11 的信号馈入端和接地端分别与主板12上的信号馈点13与地馈点14和15导通,信号馈点13通过匹配电路16与信号传输线17连接,形成信号传输通道,通过调节匹配电路16的阻抗来调整该多频天线装置各频段的带宽,使得多频天线装置支持的各频段满足带宽需求。 [0002] Currently, a multi-frequency antenna device shown in Figure 1 mostly configuration, comprising: an antenna 11, a main board 12; wherein the signal feed terminal and the ground terminal and the antenna 11 are on the signal feed point 12 and the motherboard 13 feed point 14 and 15 are turned on, the signal feed point 1317 is connected via a matching circuit 16 and the signal transmission line, forming a signal transmission path to adjust the bandwidth of each frequency band of the multi-frequency antenna apparatus by adjusting the impedance matching circuit 16, so that the multi-band antenna the device supports the band to meet the bandwidth requirements. [0003] 但一个匹配电路在调节后得出的一个阻抗值,无法兼顾其对应的多个频段,即当将匹配电路调节至某阻抗值时,可能使得部分频段的带宽极大,而另外部分频段的带宽极小,这样,要使各频段均满足带宽需求,就需要多次调节匹配电路阻抗,比较困难。 [0003] However, a matching circuit is a resistance value obtained after the adjustment, not taking into account the corresponding plurality of frequency bands, i.e., when the matching circuit is adjusted to an impedance value may be such that the maximum bandwidth of the band portion, whereas another portion minimum bandwidth of the frequency band, so, to make the band meet the bandwidth requirements, needs to repeatedly adjust the impedance matching circuit, it is difficult.

实用新型内容 SUMMARY

[0004] 有鉴于此,本实用新型的主要目的在于提供一种多频天线装置,能够大大降低使各频段均能满足带宽需求的难度。 [0004] In view of this, the main object of the present invention to provide a multi-band antenna device, can greatly reduce the difficulty of the respective bands can meet the bandwidth requirements.

[0005] 为达到上述目的,本实用新型的技术方案是这样实现的: [0005] To achieve the above object, the technical solution of the present invention is implemented as follows:

[0006] —种多频天线装置,包括主板和天线;所述主板上设置有信号馈点、两个以上地馈点和信号传输线,所述信号馈点与所述信号传输线连接;所述天线的信号馈入端与所述信号馈点导通,所述天线的各接地端分别与相应的各所述地馈点导通,所述天线的各天线支路上分别连接有一个匹配电路。 [0006] - multiband antenna device, comprising a main board and an antenna; with a signal feeding point disposed on the main board, and two or more ground feed signal transmission line, said signal feed point connected to the signal transmission line; the antenna the signal feed terminal and the signal feed point is turned on, the respective ground terminal of said antenna respectively corresponding to each of the ground feed is turned on, the antenna of each antenna branch are connected to a matching circuit.

[0007] 进一步地,所述天线的各天线支路上分别连接有一个匹配电路具体为:在所述天 [0007] Further, each antenna of the antenna branch are connected to a matching circuit is specifically: the days

线的信号馈入端上焊接各匹配电路的一端,各匹配链路的另一端分别焊接在所述天线的各 Welding one end of each of the matching circuit on the signal feeding terminal of the line, the other end of each link are welded to match the antenna in each

接地端,每个所述接地端与一个匹配电路的另一端焊接在一起。 A ground terminal, said ground terminal and each of the other end of the matching circuit are welded together.

[0008] 进一步地,所述匹配电路为Pai型、双L型或(L+Pai)型匹配电路。 [0008] Further, the matching circuit Pai, double-type or L (L + Pai) type matching circuit.

[0009] 进一步地,所述天线的部分天线支路形成低频谐振,其余的天线支路形成高频谐振。 [0009] Further, the antenna portion of the antenna branches form low-band resonance, the remaining high frequency resonator antenna branch is formed.

[0010] 进一步地,所述天线印刷在软性电路板FPC上。 [0010] Further, the antenna on the flexible printed circuit board FPC.

[0011] 本实用新型所提供的多频天线装置,在其天线的各天线支路上分别连接有一个匹配电路,每个匹配电路负责部分频段带宽的调节,且各匹配电路相互独立、互不影响,降低了调试单个匹配电路可改变其带宽的频段的数目,大大降低了使各频段均能满足带宽需求的难度,且解决了因一个匹配电路在调节后得出的一个阻抗值,无法兼顾各频段的带宽的问题,增大了调节匹配电路可使各频段同时达到的最大带宽。 [0011] The present novel multi-band antenna apparatus is provided, are connected to each antenna branch in which a matching circuit of the antenna, the bandwidth of each band portion is responsible for adjusting the matching circuit, the matching circuit and each independent of each other, independently of each other reduced debugging a single matching circuit may change the number of bands of which the bandwidth and greatly reduce the respective bands can meet the bandwidth requirements of difficulty, and a solution of a matching circuit because the impedance value after the adjustment obtained, not taking into account each frequency bandwidth problems, increases the maximum bandwidth of each frequency band can adjust the matching circuit simultaneously achieved.

附图说明 BRIEF DESCRIPTION

[0012] 图1为现有多频天线装置的拆分示意图; [0012] FIG. 1 is a schematic view of the conventional multi-split frequency antenna device;

[0013] 图2为本实用新型实施例多频天线装置的拆分示意图。 [0013] FIG. 2 is a schematic view of invention embodiments Example split multi-band antenna device. 具体实施方式 detailed description

[0014] 本实用新型的多频天线装置中的天线包括两个或多个天线支路,且每个天线支路连接一个匹配电路,以下以采用包括两个天线支路的天线的多频天线装置为例,具体说明本实用新型多频天线装置的组成结构。 [0014] The present invention in a multi-frequency antenna apparatus includes two antenna branches or a plurality of antennas, and each antenna branch connected to a matching circuit, to employ the antenna comprises two antenna branches of the multi-frequency antenna means, for example, described in detail the structure of the composition of the present invention the multi-frequency antenna device.

[0015] 本实用新型实施例多频天线装置的结构如图2所示,包括主板21和天线20,主板21上设置有信号馈点22、地馈点23、地馈点24和信号传输线25,信号馈点22与信号传输线25连接,形成信号传输通道;天线20的信号馈入端与信号馈点22压接在一起,天线20 的两个接地端分别与地馈点23和地馈点24导通;所述天线20包括第一天线支路26、第二天线支路27,第一天线支路26上连接有第一匹配电路28,第二天线支路27上连接有第二匹配电路29 ; Structure [0015] Example embodiment of the present invention, the multi-frequency antenna device shown in Figure 2, includes a main board 21 and the antenna 20, the motherboard 22 is provided, the feed point 23, the feed point 24 and the signal transmission line feed point 25 on the signal 21 , the signal feed point 2225 is connected to the signal transmission line forming a signal transmission path; signal feeding terminal 20 and the signal feed point of the antenna 22 is crimped together, two ground terminals are respectively connected to the antennas 20 feed point 23 and ground feed 24 is turned on; the antenna 20 comprises a first antenna branch 26, the second antenna branch 27, a first branch connected with a first antenna matching circuit 2628, a second antenna 27 connected to a second branch matched circuit 29;

[0016] 其中,所述第一天线支路26形成低频谐振,支持需支持的各频段中的各低频段; [0016] wherein the first low-band resonance antenna branch 26 is formed, the support of the low frequency band of the band required in support;

所述第二天线支路26形成高频谐振,支持需支持的各频段中的各高频段。 The antenna resonance frequency branch 26 is formed, the support of the high frequency band of the band in the need to support.

[0017] 所述第一天线支路26上连接有第一匹配电路28,第二天线支路27上连接有第二 [0017] The first antenna branch 26 is connected to first matching circuit 28, a second antenna 27 connected to a second branch

匹配电路29具体为:第一匹配电路28、第二匹配电路29的一端均与天线20的信号馈入端 The matching circuit 29 is specifically: a first matching circuit 28, second matching circuit 29, one end of each of the antenna signal feeding terminal 20

焊接在一起;第一匹配电路28、第二匹配电路29的另一端分别与天线20的两个接地端焊接。 Welded together; first matching circuit 28, the other end of the second matching circuit 29 are respectively welded to the two ends of the ground antenna 20.

[0018] 这里,为了能够将第一匹配电路28、第二匹配电路29的两端焊接在天线20上,将天线20印刷在软性电路板(FPC)上,且天线20的信号馈入端和两个接地端上均设置有焊 [0018] Here, in order to feed the signal of the first matching circuit 28, second matching circuit 29 welded at both ends of the antenna 20, the antenna 20 on the flexible printed circuit board (an FPC), and the antenna 20 and the ground terminal is provided with two welding

[0019] 所述第一匹配电路28为Pai型、双L型或(L+Pai)型匹配电路中的任意一种,所述第二匹配电路29为Pai型、双L型或(L+Pai)型匹配电路中的任意一种,根据需要支持的频段决定具体选择哪种,第一匹配电路28、第二匹配电路29为相同类型的匹配电路、或为不同类型的匹配电路。 [0019] The first matching circuit 28 as Pai-type, L-type or any of a bis (L + Pai) type matching circuit, the second matching circuit 29 as Pai-type, double-type or L (L + either PAI) type matching circuit, according to the band selection decisions which need to support specific, first matching circuit 28, second matching circuit 29 is the same type of matching circuits, or different types of matching circuits.

[0020] 本实用新型实施例中,第一天线支路26和第一匹配电路28支持低频段,第二天线支路27和第二匹配电路29支持高频段,即分担需要支持的频段,降低了使各频段均能满足带宽需求的难度;且第一匹配电路28和第二匹配电路29为相互独立的电路,其阻抗互不影响,即高频段和低频段对应匹配电路阻抗互不影响,进而大大降低了使各频段均能满足带宽需求的难度,且解决了无法兼顾高频段和低频段的带宽的问题,增大了调节匹配电路可使高频段和低频段同时达到的最大带宽。 [0020] Example embodiment of the present invention, the first antenna matching circuit 26 and the first leg 28 to support a low frequency band, the second antenna matching circuit 27 and the second leg 29 to support the high band, i.e., balancing the need to support the band, reducing the difficulty of the respective bands can meet bandwidth demand; and the first matching circuit 28 and second matching circuit 29 is independent of the circuit impedance independently of each other, i.e., corresponding to the high frequency and low frequency impedance matching circuit independently of each other, thus greatly reducing the difficulty of the band can meet the bandwidth requirements, and to solve the problem can not be both high bandwidth and low frequency bands, increasing the maximum bandwidth throttling matching circuit allows the high and low bands simultaneously achieve.

[0021] 以上所述,仅为本实用新型的较佳实施例而已,并非用于限定本实用新型的保护范围。 [0021] The above are only preferred embodiments of the present invention, embodiments and not intended to limit the scope of protection of the present invention.

Claims (5)

  1. 一种多频天线装置,包括主板和天线;所述主板上设置有信号馈点、两个以上地馈点和信号传输线,所述信号馈点与所述信号传输线连接;所述天线的信号馈入端与所述信号馈点导通,所述天线的各接地端分别与相应的各所述地馈点导通,其特征在于,所述天线的各天线支路上分别连接有一个匹配电路。 The antenna signal feed; A multi-frequency antenna apparatus includes a main board and an antenna; disposed on the signal feed point of the mainboard, the feed point and the two or more signal transmission lines, said signal feed point and the signal transmission line is connected the signal feed-in end point is turned on, the respective ground terminal of said antenna respectively corresponding to each of the ground feed is turned on, wherein each antenna of the antenna branch are connected to a matching circuit.
  2. 2. 根据权利要求1所述多频天线装置,其特征在于,所述天线的各天线支路上分别连接有一个匹配电路具体为:在所述天线的信号馈入端上焊接各匹配电路的一端,各匹配链路的另一端分别焊接在所述天线的各接地端,每个所述接地端与一个匹配电路的另一端焊接在一起。 1 2. The multi-band antenna device according to claim, wherein each antenna of the antenna branch are connected to a matching circuit specifically: welding an end of each matching circuit on a signal feeding terminal of the antenna , the other end of each link are welded to match each of the antenna ground terminal, said ground terminal and each of the other end of the matching circuit are welded together.
  3. 3. 根据权利要求1或2所述多频天线装置,其特征在于,所述匹配电路为Pai型、双L 型或(L+Pai)型匹配电路。 3. The 1 or 2, multi-band antenna device according to claim, wherein the matching circuit is Pai, double-type or L (L + Pai) type matching circuit.
  4. 4. 根据权利要求1或2所述多频天线装置,其特征在于,所述天线的部分天线支路形成低频谐振,其余的天线支路形成高频谐振。 According to claim 1 or 2, the multi-band antenna device, characterized in that the antenna branches of the antenna portion forming low-band resonance, the remaining high frequency resonator antenna branch is formed.
  5. 5. 根据权利要求1或2所述多频天线装置,其特征在于,所述天线印刷在软性电路板FPC上。 1 or 2. 5. The multi-band antenna device according to claim, characterized in that the antenna on the flexible printed circuit board FPC.
CN 200920173068 2009-09-02 2009-09-02 Multi-frequency antenna device CN201508909U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014000603A1 (en) * 2012-06-25 2014-01-03 中兴通讯股份有限公司 Wireless device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014000603A1 (en) * 2012-06-25 2014-01-03 中兴通讯股份有限公司 Wireless device

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