CN105206930B - The wideband gain structure of the combined type low-frequency antenna of circumscribed LTE - Google Patents
The wideband gain structure of the combined type low-frequency antenna of circumscribed LTE Download PDFInfo
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- CN105206930B CN105206930B CN201410261700.6A CN201410261700A CN105206930B CN 105206930 B CN105206930 B CN 105206930B CN 201410261700 A CN201410261700 A CN 201410261700A CN 105206930 B CN105206930 B CN 105206930B
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- ground terminal
- transmission line
- lte
- wideband gain
- grounding assembly
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- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 239000000615 nonconductor Substances 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 238000002955 isolation Methods 0.000 claims abstract description 7
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Abstract
The invention discloses a kind of wideband gain structures of the combined type low-frequency antenna of circumscribed LTE, the wideband gain structure makes one end ground terminal of electric device, connect an external antenna, to have the function of wireless transmission, one end of the external antenna is equipped with a transmission line, the transmission line is connected with the ground line being set in the coupling end and the ground terminal of one end, the wideband gain structure further includes a grounding assembly and a non-conductor component, the non-conductor component formula annular in shape it is looped around the outside of the transmission line Yu the ground line, the grounding assembly and the ground terminal are respectively sleeved at the both ends of the non-conductor component, it is contacted to avoid the grounding assembly with the transmission line, and the ground terminal is avoided to contact with described；The center of the non-conductor component simultaneously has a cyclic annular isolation part, and grounding assembly and ground terminal are isolated, and a virtual extension antenna mode is consequently formed, and then form the wideband gain structure for meeting LTE low-frequency antenna.
Description
Technical field
The present invention relates to a kind of wideband gain structures, and in particular to a kind of width of the combined type low-frequency antenna of circumscribed LTE
Band gaining structure.
Background technique
The electric device of the prior art need to connect an antenna body to reach the function of wireless reception or wireless communication.One
As for, which can be formed directly on the circuit board of the electric device, or with external mode and electric device
Ground terminal is connected.
As shown in Figure 1, the electric device 100, one end sets a ground terminal 101, and an external antenna 200 is passed via one
After defeated line 201 and the ground terminal 101 connection conducting, which can carry out the transmission of wireless signal.
In recent years, in order to simplify existing network framework, the potential undesirable element in 3G conversion is reduced, original GSM/ is based on
(Long Term Evolution, is abbreviated as the Long Term Evolution that EDGE and UMTS/HSPA network technology is developed
LTE), after being proposed from 2004 by Japanese NTT DoCoMo company, the height applied in mobile phone and data card terminal is nowadays had become
Fast wireless communication standard.
In general, LTE network has the ability to provide the downloading rate of 300Mbit/s and the uploading rate of 75Mbit/s, mention
For the communication need in high-speed mobile, Multicast Flows and broadcasting stream are supported, and support the Time Division Multiple Access of 1.4MHZ to 20MHZ
(TDMA) and Code Division Multiple Access (CDMA) frequency range, reach and support frequency division duplexing (FDD) and time division duplex (TDD) communication, receiving
Using the same timesharing half duplex communication for being wirelessly connected technology, but can the existing communication standard of interactive operation (such as GSM/EDGE,
UMTS and CDMA2000), and can be coexisted with them, to provide user call sum number can be carried out in the area for possessing LTE signal
According to transmission, GSM/EDGE can be then directly switch into LTE uncovered area or based on the UMTS of W-CDMA, under even 3GPP2
CDMAOne and CDMA2000 network.
However, the structure that the electric device of the prior art is wirelessly transferred by connection external antenna, can only use
The bandwidth of 2G or 3G can not generate the broadband mode of LTE low frequency.
Summary of the invention
The present invention is intended to provide a kind of wideband gain structure of the combined type low-frequency antenna of circumscribed LTE, makes to connect external
The electric device of formula antenna can produce the broadband mode of LTE low frequency.
To achieve the goals above, this invention takes following technical solutions:
A kind of wideband gain structure of the combined type low-frequency antenna of circumscribed LTE, the wideband gain structure are with logical
One end of the electric device of communication function, connects an external antenna, and one end of the electric device is ground terminal, the circumscribed
One end of antenna is equipped with a transmission line, and the transmission line is the coupling end to be set to one end and one in the ground terminal
Ground line connection, the wideband gain structure further include a grounding assembly and a non-conductor component, and the non-conductor component is in ring
It is looped around to shape formula the outside of the junction of the transmission line and the ground line, the grounding assembly and the ground terminal are distinguished
The both ends of the non-conductor component are set in, are contacted to avoid the grounding assembly with the transmission line, and avoid described connect
Ground terminal is contacted with described；The center of the non-conductor component simultaneously has the biggish cyclic annular isolation part of a diameter, by institute
Grounding assembly and ground terminal isolation are stated, a virtual extension antenna mode is consequently formed, and then formed and meet LTE low-frequency antenna
Wideband gain structure.
The beneficial effect that the present invention obtains is:
The wideband gain structure of the combined type low-frequency antenna of circumscribed LTE provided by the invention, connects external antenna
An antenna extensions are formed to the position of electric device, to generate the broadband specification for meeting LTE low frequency.
The wideband gain structure of the combined type low-frequency antenna of circumscribed LTE provided by the invention, in the biography of external antenna
A grounding assembly is added in defeated line end, and the ground terminal of the grounding assembly and electric device is isolated with a non-conductor component insulation, with
This constitutes antenna extensions, after line end connects conducting with the ground terminal of electric device, can form the width of LTE low frequency
Band mode.
Detailed description of the invention
Fig. 1 is the schematic diagram of the connection external antenna of the prior art；
Fig. 2 is one of the wideband gain structure of the combined type low-frequency antenna of circumscribed LTE of the invention
The schematic diagram of embodiment；
Fig. 3 is the enlarged view at the position A in Fig. 2；
Fig. 4 is one of the wideband gain structure of the combined type low-frequency antenna of circumscribed LTE of the invention
The electric characteristics figure of embodiment.
Description of symbols:
100- electric device；101- ground terminal；200- external antenna；201- transmission line；
300- electric device；301- ground terminal；302- ground line；400- external antenna；500- transmission line；501- coupling
End；600- grounding assembly；700- nonconductive members；701- ring-type isolation part.
Specific embodiment
For the ease of to the purpose of the present invention, shape, constructing apparatus, feature and its effect do further understanding with
Solution, by embodiment, with merging, detailed description are as follows with attached drawing:
The wideband gain structure of the combined type low-frequency antenna of circumscribed LTE provided by the invention, as shown in Figure 2 comprising
One electric device 300, an external antenna 400 and a connection electric device 300 and external antenna with communication function
400 transmission line 500.One end of the electric device 300 is a ground terminal 301, and external antenna 400 is via the transmission line 500
After the ground terminal 301 connection, electric device 300 can be made to carry out wireless communication transmission.
As shown in figure 3, one end of transmission line 500 is fixed on external antenna 400, the other end is coupling end 501, should
The ground line 302 that coupling end 501 can be pierced by with the ground terminal 301 from electric device 300 is connected.
As shown in figure 3, a grounding assembly 600 is arranged outside the coupling end 501 of transmission line 500, the grounding assembly 600 and electricity
The ground terminal 301 of device of air 300 is dielectrically separated from via a non-conductor component 700, is consequently formed just like external antenna to downward
The antenna extensions stretched.
As shown in figure 3, non-conductor component 700 is annularly looped around the outside of transmission line 500 and ground line 302, it is described
Grounding assembly 600 and the ground terminal 301 are respectively sleeved at the both ends of the non-conductor component 700, to avoid the ground connection group
Part 600 is contacted with the transmission line 500, and the ground terminal 301 is avoided to contact with the ground line 302；Non-conductor component
700 center has the biggish cyclic annular isolation part 701 of a diameter, and grounding assembly 600 and ground terminal 301 are isolated, this is non-to lead
Body component 700 simultaneously can avoid 302 contact of ground terminal 301 and ground line.
As shown in figure 4, the data shown via current path analysis chart are it is found that with reflection coefficient S11 parameter
(S11Parameter) foundation as antenna primary characteristic indicates the radiation parameter of antenna by Network Analyzer, and with S11
Parameter is -7dB to define effective impedance bandwidth, and this definition is able to satisfy the Antenna Design specification of electrical communications device.It can by Fig. 4
It is apparent from, the electric device for being directly connected to external antenna of the prior art, band bandwidth is 120MHz (880-
1000MHz), the wideband requirements of LTE low frequency can not be met.The width of the combined type low-frequency antenna of circumscribed LTE provided by the invention
Band gaining structure, band bandwidth are 200MHz (650-850MHz), then meet the bandwidth mode of LTE low frequency.
The above, only currently preferred specific embodiment, and construction feature of the invention is not limited thereto, and is appointed
What is familiar with this those skilled in the art in the field of the present invention, can think easily and changes or modifications, can all cover this application claims guarantors
In the range of shield.
Claims (1)
1. a kind of wideband gain structure of the combined type low-frequency antenna of circumscribed LTE, which is to have communication
One end of the electric device of function, connects an external antenna, and one end of the electric device is ground terminal, the circumscribed day
One end of line is equipped with a transmission line, and the transmission line is the ground connection to be set in the coupling end and the ground terminal of one end
Line connection, it is characterised in that: the wideband gain structure further includes a grounding assembly and a non-conductor component, the non-conductor group
It is looped around to part formula annular in shape the outside of the transmission line Yu the ground line, the grounding assembly covers respectively with the ground terminal
The both ends of the non-conductor component are located at, are contacted to avoid the grounding assembly with the transmission line, and avoid the ground connection
End is contacted with described；The center of the non-conductor component simultaneously has a cyclic annular isolation part, by the grounding assembly and
The ground terminal isolation is consequently formed a virtual extension antenna mode, and then forms the wideband gain knot for meeting LTE low-frequency antenna
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261700.6A CN105206930B (en) | 2014-06-12 | 2014-06-12 | The wideband gain structure of the combined type low-frequency antenna of circumscribed LTE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261700.6A CN105206930B (en) | 2014-06-12 | 2014-06-12 | The wideband gain structure of the combined type low-frequency antenna of circumscribed LTE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105206930A CN105206930A (en) | 2015-12-30 |
| CN105206930B true CN105206930B (en) | 2019-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410261700.6A Active CN105206930B (en) | 2014-06-12 | 2014-06-12 | The wideband gain structure of the combined type low-frequency antenna of circumscribed LTE |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565536A (en) * | 2018-03-19 | 2018-09-21 | 莱尔德无线技术（上海）有限公司 | By the VSWR bandwidth broadnings of LTE antenna element to low-frequency method and antenna module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM253913U (en) * | 2003-12-16 | 2004-12-21 | Hon Hai Prec Ind Co Ltd | External antenna |
| CN2893954Y (en) * | 2006-05-11 | 2007-04-25 | 特腾高频股份有限公司 | External antenna |
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| CN105206930A (en) | 2015-12-30 |
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