CN207517881U - Antenna - Google Patents
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- CN207517881U CN207517881U CN201721611222.2U CN201721611222U CN207517881U CN 207517881 U CN207517881 U CN 207517881U CN 201721611222 U CN201721611222 U CN 201721611222U CN 207517881 U CN207517881 U CN 207517881U
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- microstripline
- resistor
- antenna
- segment
- frequency band
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Abstract
The utility model discloses a kind of antennas, the antenna includes substrate, the substrate is equipped with antenna body, it is characterized in that, the antenna body includes microstripline, frequency band match circuit and the feed line for being connect with terminal device, and the feed line is connect through the frequency band match circuit with the microstripline；By increasing frequency band match circuit between microstripline and feed line, the clutter for influencing antenna conversion efficiency is filtered out through frequency band match circuit, so as to which the conversion efficiency for making antenna reaches highest.
Description
Technical field
The utility model belongs to wireless communication technique field, and in particular to a kind of antenna.
Background technology
Radio magnetic wave is ubiquitous in we live, while radio communication product is popularized, between communication product
The radio magnetic wave of generation also seriously interferes the conversion efficiency of communication product antenna, the main reason for above problem occurs
It is：The antenna of communication product is passive antenna, and is mostly used based on built-in aerial design, but these built-in aerials are not
There is filtering clutter.
Utility model content
The utility model main purpose is to provide a kind of antenna of included frequency band match circuit, it is intended to solve filtering clutter
The problem of.
To achieve the above object, the utility model provides a kind of antenna, and including substrate, the substrate is equipped with antenna sheet
Body, the antenna body include microstripline, frequency band match circuit and the feed line for being connect with terminal device, the feed
Line is connect through the frequency band match circuit with the microstripline.
Preferably, the frequency band match circuit is high frequency or low-frequency band match circuit.
Preferably, the frequency band match circuit is π types filter circuit or L-type filter circuit or T-shaped filter circuit.
Preferably, the microstripline includes the first microstripline and the second microstripline, first microstripline
To have the straight-flanked ring of a notch, the neighbouring indentation, there for being set to first microstripline of second microstripline is described
First microstripline is grounded, and first microstripline and second microstripline connect respectively with the frequency band match circuit
It connects.
Preferably, the microstripline is the antenna plane radiator being attached on the substrate.
Preferably, second microstripline is included in band-like ontology and spaced along the body length direction
Multiple gain portions, one end of the ontology are set adjacent to the notch of first microstripline.
Preferably, the ontology is divided into first segment, second segment and third section along its length, and between adjacent two sections between
Away from setting, the gain portion is convexed to form by the third section of the ontology from the ontology both lateral sides, the first segment with it is described
Feed line connects.
Preferably, the quantity in the gain portion is three, and respectively the first gain portion, the second gain portion and third gain
Portion, the notch setting far from first microstripline successively of the first gain portion, the second gain portion and third gain portion, institute
The area of plane for stating the second gain portion is more than the first gain portion, and the second gain portion is less than the third gain portion.
Preferably, the frequency band match circuit includes first resistor, second resistance, 3rd resistor, the first capacitance, the first electricity
Sense and the 4th resistance, one end of the first resistor are connect with the first segment, the other end of the first resistor and described the
Two sections of connections；The second resistance, 3rd resistor, the first capacitance and the 4th resistor coupled in parallel are connected to the first segment and described
Between one microstripline；One end of first inductance connects the second segment, described in the other end connection of first inductance
Third section；Alternatively,
The frequency band match circuit includes first resistor, second resistance, 3rd resistor, the first capacitance, the first inductance and the
Two inductance, one end of the first resistor are connect with the first segment, and the other end of the first resistor connects with the second segment
It connects；The second resistance, 3rd resistor, the first capacitance and the second inductance in parallel are connected to the first segment and first micro-strip
Between circuit；One end of first inductance connects the second segment, and the other end of first inductance connects the third section；
Alternatively,
The frequency band match circuit includes first resistor, second resistance, 3rd resistor, the first capacitance, the first inductance and the
Two capacitances, one end of the first resistor are connect with the first segment, and the other end of the first resistor connects with the second segment
It connects；The second resistance, 3rd resistor, the first capacitance and the second capacitance are connected in parallel in the first segment and first micro-strip
Between circuit；One end of first inductance connects the second segment, and the other end of first inductance connects the third section.
Preferably, the capacitance is tunable capacitor, and the inductance is controllable impedance.
The utility model has the following technical effect that：(1) it is matched by increasing frequency band between microstripline and feed line
Circuit filters out/influences the clutter of antenna conversion efficiency through frequency band match circuit, so as to which the conversion efficiency for making antenna reaches highest；
(2) by the multiple gain portions of the second microstripline both sides projection, making antenna gain, so as to increase network coverage；(3) it is electric
Hold and inductance is adjustable, by adjusting resistance value and inductance value, different types is made to match different antennas, so as to fulfill
Built-in aerial shares.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not making the creative labor.
Fig. 1 is the schematic block circuit diagram of the utility model antenna；
Fig. 2 is the structure diagram of antenna in Fig. 1；
Fig. 3 is the structure diagram of one embodiment of frequency band match circuit shown in Fig. 2.
Figure label is as shown in the table：
| Label | Title | Label | Title |
| 1 | Substrate | 10 | Antenna body |
| 15 | Microstripline | 12 | Frequency band match circuit |
| 14 | Feed line | 18 | First microstripline |
| 16 | Second microstripline | 160 | Belt body |
| 161 | First segment | 162 | Second segment |
| 163 | Third section | 1630 | Gain portion |
| 1630a | First gain portion | 1630b | Second gain portion |
| 1630c | Third gain portion | R1 | First resistor |
| R2 | Second resistance | R3 | 3rd resistor |
| C1 | First capacitance | L1 | First inductance |
| R/L/C | Resistance/inductance/capacitance |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the creative labor premise
Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each component etc., such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
It in addition, if the description in " first ", " second " etc. involved in the utility model is only used for description purpose, and cannot manage
It solves to indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Define as a result, " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the skill between each embodiment
Art scheme can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when technical solution
It will be understood that the combination of this technical solution is not present with reference to there is conflicting or can not realize when, also not in the utility model
It is required that protection domain within.
The utility model provides a kind of antenna, can realize and filter out clutter in antenna, maximize the conversion efficiency of antenna.
With reference to figure 1 and Fig. 2, the functional block diagram of one embodiment of the utility model and the structure diagram of antenna are shown, this
Utility model antenna includes substrate 1, and the substrate 1 is equipped with antenna body 10, and the antenna body 10 includes microstripline
15th, frequency band match circuit 12 and the feed line 14 for being connect with terminal device, the feed line 14 is through the frequency band match circuit
12 connect with the microstripline 15.
When the antenna of the present embodiment is used for terminal device, feed line 14 with terminal device for connecting, to realize terminal
Signal input or output between equipment and the antenna.Frequency band match circuit 12 is used to match the corresponding signal frequency of aerial signal
Band filters out unwanted clutter in aerial signal, influence Antenna Operation efficiency to avoid clutter.
In the present embodiment, when terminal device is sent out signal by the antenna, feed line 14 exports terminal device
Signal transmission to frequency band match circuit 12, after frequency band match circuit 12 filters out the noise signal from terminal device, then by
Microstripline 15 is launched.
On the contrary, when terminal device receives external signal by the antenna, first, microstripline 15 receives external wireless
Signal filters out the noise signal in the wireless signal received through frequency band match circuit 12, is then transmitted to end by feed line 14
End equipment.
It is understood that since either by the antenna, the number of delivering letters or terminal device pass through terminal device outward
The antenna receives external signal, and frequency band match circuit 12 can be filtered the signal of transmission so that received signal is steady
It is fixed, so as to improve the conversion efficiency of antenna.
In the present embodiment, optionally, the frequency band match circuit 12 is high frequency or low-frequency band match circuit 12.It needs
Illustrate, i.e., the present embodiment midband match circuit 12 can select corresponding high frequency or low frequency as needed, to filter out
Unwanted high frequency spurs signal or low frequency spur signal in signal, so as to fulfill this patent effect.
Based on above-described embodiment, clutter in antenna is filtered out in order to be better achieved, maximizes antenna conversion efficiency.Into one
Step ground, the frequency band match circuit 12 described in the utility model are π types filter circuit or L-type filter circuit or T-shaped filter circuit.
In one embodiment, the microstripline 15 includes the first microstripline 18 and the second microstripline 16, described
First microstripline 18 is the straight-flanked ring with a notch, and second microstripline 16 is neighbouring to be set to first microstrip line
The indentation, there on road 18,18 tunnel of the first microstrip line ground connection, first microstripline 18 and second microstripline 16 divide
It is not connect with the frequency band match circuit 12.
Specifically, with reference to figure 2, in this embodiment, the frequency band match circuit 12 is π type filter circuits, the π
Type filter circuit input terminal and/or output terminal are electrically connected in described 14 one end of feed line, the output terminal of the π type filter circuits
And/or input terminal is electrically connected respectively with second microstripline 16 and the first microstripline 18.
In the embodiment, when terminal device sends signal or receive external signal to outside, when signal is from terminal device
When sending out, unwanted noise signal is filtered out through π type filter circuits, i.e., extra low frequency signal or high-frequency signal, then by second
Microstripline 16 sends out the stabilization signal after filtering clutter, so as to improve the conversion efficiency of antenna.
In the embodiment, when terminal device is to outer received signal, second microstripline 16 receives outside
Signal transmission is filtered out the unwanted noise signal of external reception by π type filter circuits, i.e., extra is low to π type filter circuits
Frequency signal or high-frequency signal, then it is transmitted to terminal device so that the signal stabilization received sent, so as to improve day
The conversion efficiency of line.
It should be understood that second microstripline is used for the transmission of signal, the external noise signal received is transmitted
And transmit the stabilization signal sent to outside.
It should be noted that the high-frequency/low-frequency filtering L-type, T-shaped in the above-mentioned frequency band match circuit 12 applied described in example
Or the frequency bands match circuit such as double-T shaped is also the basic principle of electronic circuit industry, the purpose of this utility model is not limited to above-mentioned reality
Example and π types filter circuit shown in the drawings are applied, it will be apparent to those skilled in the art that high-frequency/low-frequency filtering L-type, T-shaped or double T
The frequency bands match circuit such as type is equally applicable to the utility model, the utility model by the multinomial design principle of the antenna of microwave communication with
Electronic circuit matches multinomial design principle and is combined, and is integrated into antenna, to solve institute face in current wireless internal antenna industry
The problem of facing.
Based on above-described embodiment, with reference to figure 2, in order to improve the gain of antenna, increase the range of the network coverage, further
Ground, the microstripline 15 are the antenna plane radiator being attached on the substrate 1, i.e. the antenna is each on the horizontal level
Direction radiates.In addition, second microstripline 16 is included in band-like ontology 160 and along between 160 length direction of ontology
Every multiple gain portions 1630 of setting, one end of the ontology is set adjacent to the notch of first microstripline 18, by upper
The gain of antenna can be improved by stating the design of structure.
Further, the ontology 160 is divided into first segment 161, second segment 162 and third section 163 along its length, and
Spacing is set between adjacent two sections, and the gain portion 1630 is raised from the ontology both lateral sides by the third section 163 of the ontology
It is formed, the first segment 161 is connect with the feed line 14.
Further, the quantity in the gain portion 1630 is three, and respectively the first gain portion 1630a, the second increasing
Beneficial portion 1630b and third gain portion 1630c, the first gain portion 1630a, the second gain portion 1630b and third gain portion
The notch setting far from first microstripline 18, the area of plane of the second gain portion 1630b are more than institute to 1630c successively
The first gain portion 1630a is stated, the second gain portion 1630b is less than the third gain portion 1630c.
Further, antenna oscillator has been further included in the antenna, has passed through the design of above-mentioned circuit so that by day
The current in phase of linear oscillator, form it is perpendicular to ground, arrange " antenna array " in alignment along axis, can by antenna array
To squeeze radiation field of aerial figure more flat, field pattern figure is more flat, and the gain of antenna is also higher.
Furthermore, it is necessary to explanation, the shape of the microstripline 15 described in the utility model are not especially limited, institute
The circuit of microstripline 15 stated can be according to the matching Demand Design of antenna into arbitrary shape, as long as meeting the matching need of antenna
It asks, ensures the transformation efficiency of antenna.
Based on any of the above-described embodiment, to realize that built-in aerial shares, Circuit Matching, this practicality are done for different types
Novel frequency band match circuit 12 can be made of passive device resistance, capacitance and inductance.
Specifically, with reference to figure 2 and Fig. 3, in one embodiment, the frequency band match circuit 12 includes first resistor R1, the
Two resistance R2,3rd resistor R3, the first capacitance C1, the first electricity inductance L1 and the 4th resistance, one end of the first resistor R1 with
The first segment 161 connects, and the other end of the first resistor R1 is connect with the second segment 162；The second resistance R2,
Three resistance R3, the first capacitance C1 and the 4th resistor coupled in parallel are connected between the first segment 161 and first microstripline 18；
One end of described first electric inductance L1 connects the second segment 162, and the other end of the described first electric inductance L1 connects the third
Section 163.Also, the capacitance can also be further arranged to tunable capacitor, and the inductance can also be further arranged to adjustable
Inductance.
In another embodiment, the frequency band match circuit 12 includes first resistor R1, second resistance R2,3rd resistor
R3, the first capacitance C1, the first electricity inductance L1 and the second inductance, one end of the first resistor R1 are connect with the first segment 161,
The other end of the first resistor R1 is connect with the second segment 162；The second resistance R2,3rd resistor R3, the first capacitance
C1 and the second inductance in parallel are connected between the first segment 161 and first microstripline 18；Described first electric inductance L1
One end connect the second segment 162, the other end of the described first electric inductance L1 connects the third section 163.
In another embodiment, the frequency band match circuit 12 includes first resistor R1, second resistance R2,3rd resistor
R3, the first capacitance C1, the first electricity inductance L1 and the second capacitance, one end of the first resistor R1 are connect with the first segment 161,
The other end of the first resistor R1 is connect with the second segment 162；The second resistance R2,3rd resistor R3, the first capacitance
C1 and the second capacitance are connected in parallel between the first segment 161 and first microstripline 18；Described first electric inductance L1
One end connect the second segment 162, the other end of the described first electric inductance L1 connects the third section 163.
It should be noted that optional one can be with above-mentioned frequency band match circuit in the resistance R/ inductance L/ capacitances C
12 form π type filter circuits；Certainly, the frequency band match circuit 12 can also be L-type filter circuit, T-shaped filter circuit or
Double-T shaped filter circuit.
Further, above-mentioned terminal device can have the function of network analysis or in addition using Network Analyzer to above-mentioned
The voltage standing wave ratio of the frequency band match circuit 12 of each embodiment is tested, by taking terminal device has the function of network analysis as an example,
The voltage standing wave ratio test method of detailed description below this patent frequency band match circuit 12：
During test, feed line 14 is connected to the network analysis interface of terminal device, impedance matching utilizes terminal device network
The Smith chart that analytic function is measured is analyzed, according to the impedance matching measured as a result, knowing antenna and type
Matching degree, match corresponding resistance value and capacitance.
It should be understood that frequency band match circuit 12 is changed to L-type filter circuit, T-shaped filter circuit or double-T shaped filtering
Any filter circuit in circuit is equally applicable to above-mentioned impedance matching, matches corresponding resistance value and capacitance, passes through tune
Resistance value of economizing on electricity and capacitance achieve the effect that built-in aerial matching shares.
It these are only the preferred embodiment of the utility model, it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly used in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (10)
1. a kind of antenna, including substrate, the substrate is equipped with antenna body, which is characterized in that the antenna body includes
Microstripline, frequency band match circuit and the feed line for being connect with terminal device, the feed line is through the frequency band match circuit
It is connect with the microstripline.
2. antenna as described in claim 1, which is characterized in that the frequency band match circuit is matched for high frequency or low-frequency band
Circuit.
3. antenna as claimed in claim 2, which is characterized in that the frequency band match circuit is filtered for π types filter circuit or L-type
Circuit or T-shaped filter circuit.
4. such as claim 1-3 any one of them antennas, which is characterized in that the microstripline include the first microstripline and
Second microstripline, first microstripline are the straight-flanked ring with a notch, and second microstripline is neighbouring to be set
In the indentation, there of first microstripline, the first microstripline ground connection, first microstripline and described second micro-
Band circuit is connect respectively with the frequency band match circuit.
5. antenna as claimed in claim 4, which is characterized in that the microstripline is that the antenna being attached on the substrate is put down
Surface radiation body.
6. antenna as claimed in claim 5, which is characterized in that second microstripline is included in band-like ontology and along institute
The spaced multiple gain portions of body length direction are stated, one end of the ontology is set adjacent to the notch of first microstripline
It puts.
7. antenna as claimed in claim 6, which is characterized in that the ontology is divided into first segment, second segment along its length
And third section, and spacing is set between adjacent two sections, the gain portion is by the third section of the ontology from the ontology both lateral sides
It convexes to form, the first segment is connect with the feed line.
8. antenna as claimed in claim 7, which is characterized in that the quantity in the gain portion is three, and respectively first increases
Beneficial portion, the second gain portion and third gain portion, the first gain portion, the second gain portion and third gain portion are successively far from described
The notch setting of first microstripline, the area of plane in the second gain portion are more than the first gain portion, and described second increases
Beneficial portion is less than the third gain portion.
9. antenna as claimed in claim 7, which is characterized in that the frequency band match circuit include first resistor, second resistance,
3rd resistor, the first capacitance, the first inductance and the 4th resistance, one end of the first resistor is connect with the first segment, described
The other end of first resistor is connect with the second segment；The second resistance, 3rd resistor, the first capacitance and the 4th resistor coupled in parallel
It is connected between the first segment and first microstripline；One end of first inductance connects the second segment, described
The other end of first inductance connects the third section；Alternatively,
The frequency band match circuit includes first resistor, second resistance, 3rd resistor, the first capacitance, the first inductance and the second electricity
Sense, one end of the first resistor are connect with the first segment, and the other end of the first resistor is connect with the second segment；Institute
It states second resistance, 3rd resistor, the first capacitance and the second inductance in parallel and is connected to the first segment and first microstripline
Between；One end of first inductance connects the second segment, and the other end of first inductance connects the third section；Or
Person,
The frequency band match circuit includes first resistor, second resistance, 3rd resistor, the first capacitance, the first inductance and the second electricity
Hold, one end of the first resistor is connect with the first segment, and the other end of the first resistor is connect with the second segment；Institute
It states second resistance, 3rd resistor, the first capacitance and the second capacitance and is connected in parallel in the first segment and first microstripline
Between；One end of first inductance connects the second segment, and the other end of first inductance connects the third section.
10. antenna as claimed in claim 9, which is characterized in that first capacitance and the second capacitance are tunable capacitor, described
The first inductance and the second inductance be controllable impedance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721611222.2U CN207517881U (en) | 2017-11-27 | 2017-11-27 | Antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721611222.2U CN207517881U (en) | 2017-11-27 | 2017-11-27 | Antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207517881U true CN207517881U (en) | 2018-06-19 |
Family
ID=62541686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721611222.2U Active CN207517881U (en) | 2017-11-27 | 2017-11-27 | Antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207517881U (en) |
-
2017
- 2017-11-27 CN CN201721611222.2U patent/CN207517881U/en active Active
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