CN107645346A - Antenna and antenna debugging method - Google Patents
Antenna and antenna debugging method Download PDFInfo
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- CN107645346A CN107645346A CN201710845991.7A CN201710845991A CN107645346A CN 107645346 A CN107645346 A CN 107645346A CN 201710845991 A CN201710845991 A CN 201710845991A CN 107645346 A CN107645346 A CN 107645346A
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Abstract
The disclosure discloses a kind of antenna and antenna debugging method, belongs to wireless communication field.Applied in the antenna for including n bar one-segment circuits, methods described includes methods described：The signal of the i-th frequency range is sent to n roads one-segment circuit by total port；The signal for allowing the i-th frequency range by the bandpass filter on the i-th tunnel one-segment circuit is transmitted, and the signal that the bandpass filter on other one-segment circuits in addition to the i-th tunnel one-segment circuit suppresses the i-th frequency range is transmitted；The i-th tunnel one-segment circuit is modified according to the debugging operations received.By the way that the multiband circuit of antenna is split as into multiple one-segment circuits, the one-segment circuit of antenna can be debugged respectively by the match circuit inside each one-segment circuit, avoid because multiple frequency ranges share one or one group of radiant body and a match circuit, and the problem of causing to influence each other between the debugging for multiple frequency ranges, improve the efficiency and success rate debugged to antenna.
Description
Technical field
This disclosure relates to wireless communication field, more particularly to a kind of antenna and antenna debugging method.
Background technology
With the development of the communication technology, the antenna of terminal generally covers multiple frequency ranges, it is necessary to the multiband line in antenna
Road is debugged for multiple frequency ranges, just can guarantee that antenna can receiving and transmitting signal well in multiple frequency ranges.
A kind of antenna is provided in correlation technique, the antenna includes a multiband circuit, is wrapped in the multiband circuit
One or one group of radiant body and a match circuit are included, ensures antenna in the multifrequency by carrying out debugging to the multiband circuit
The performance of each frequency range in the band limits of section circuit.Specifically：When being debugged to the multiband circuit, if this is more
When frequency range circuit includes a radiant body, by being modified to a radiant body, if the multiband circuit includes one group
During radiant body, by being modified to one or more of one group of radiant body radiant body, and the modification to match circuit
To be debugged, i.e., no matter the multiband circuit can debug the signals of how many frequency range, both for same or one group of radiation
Body and same match circuit are modified.
Because the signal that all frequency ranges are directed on the multiband circuit uses same or same group of radiant body, and make
With same match circuit, thus be when being debugged to the multiband circuit for the signal of different frequency range for same or
One group of radiant body, or same match circuit are modified, so mutual for meeting between the debugging of the signal of different frequency range
Influence, it is necessary to be debugged repeatedly to the multiband circuit, so larger to the debugging difficulty of the multiband circuit.
The content of the invention
The disclosure provides a kind of antenna and antenna debugging method, can solve to the debugging difficulty of the multiband circuit of antenna compared with
The problem of big.The technical scheme is as follows：
According to the first aspect of the embodiment of the present disclosure, there is provided a kind of antenna, the antenna include：N roads one-segment circuit,
With the total port being connected with the n roads one-segment circuit, wherein n >=2；
Each one-segment circuit includes：Match circuit, bandpass filter, one or one group of radiant body；
The first end of the match circuit in the one-segment circuit is connected with total port, the match circuit
Second end is connected with the first end of the bandpass filter, and the second end of the bandpass filter is connected with the radiant body；Or,
The first end of the bandpass filter in the one-segment circuit is connected with total port, and the second of the bandpass filter
End is connected with the first end of the match circuit, and the second end of the match circuit is connected with the radiant body；
Wherein, corresponding i-th frequency range of the i-th tunnel one-segment circuit, 1≤i≤n.
In an optional embodiment, total port, at least one frequency range transmitted for receiving radio frequency chip
Signal, and the signal of at least one frequency range received is sent to the n roads one-segment circuit and is transmitted；
The bandpass filter in the i-th tunnel one-segment circuit, it is corresponding for the i-th tunnel one-segment circuit will to be removed
The i-th frequency range outside the signals of other frequency ranges filtered；
The radiant body in the i-th tunnel one-segment circuit, for i-th corresponding to the i-th tunnel one-segment circuit
The signal of frequency range is transmitted.
In an optional embodiment, the first end of the match circuit in the one-segment circuit and total end
Mouth is connected by the first microstrip line, and the second end of the match circuit passes through the second micro-strip with the first end of the bandpass filter
Line is connected, and the second end of the bandpass filter is connected with the radiant body by the 3rd microstrip line；
Or,
The first end of the bandpass filter in the one-segment circuit passes through the 4th microstrip line phase with total port
Even, the second end of the bandpass filter is connected with the first end of the match circuit by the 5th microstrip line, the matching electricity
Second end on road is connected with the radiant body by the 6th microstrip line.
In an optional embodiment, the bandwidth of kth frequency range is less than predetermined threshold value corresponding to the one-segment circuit of kth road；
The kth road one-segment circuit includes a radiant body, 1≤k≤n.
In an optional embodiment, the band of jth frequency range is wider than predetermined threshold value corresponding to the one-segment circuit of jth road；
The jth road one-segment circuit includes one group of radiant body, and one group of radiant body includes at least two radiant bodies, and 1≤j≤
n。
In an optional embodiment, the bandpass filter includes：First electric capacity, the second electric capacity and the first inductance；
The first end of first electric capacity is connected with the first end of first inductance, and the first end of first inductance
For the first end of the bandpass filter；
The first end of second electric capacity is connected with the second end of first inductance, and the second end of first inductance
For the second end of the bandpass filter；
Second end of first electric capacity and the second end of second electric capacity are grounded.
In an optional embodiment, the match circuit includes：3rd electric capacity, the 4th electric capacity and the second inductance；
The first end of 3rd electric capacity is connected with the first end of second inductance, and the first end of second inductance
For the first end of the match circuit；
The first end of 4th electric capacity is connected with the second end of second inductance, and the second end of second inductance
For the second end of the match circuit；
Second end of the 3rd electric capacity is grounded with the second end of the 4th electric capacity.
In an optional embodiment, the antenna is Wireless Fidelity WIFI antennas, the n=2；
One-segment circuit Zhong Mei roads one-segment circuit includes described in two-way：One radiant body, a filter
Ripple device and a match circuit.
According to the second aspect of the embodiment of the present disclosure, there is provided a kind of antenna debugging method, the antenna include：N roads
One-segment circuit and the total port being connected with the n roads one-segment circuit, wherein n >=2, the n roads one-segment circuit Zhong Mei roads
One-segment circuit includes：Match circuit, bandpass filter, one or one group of radiant body, it is described per road one-segment circuit in i-th
Corresponding i-th frequency range of road one-segment circuit, 1≤i≤n；
Methods described includes：
The signal of the i-th frequency range from radio frequency chip is received by total port；
The signal of i-th frequency range is sent to the n roads one-segment circuit by total port；
The signal for allowing i-th frequency range by the bandpass filter on the i-th tunnel one-segment circuit is transmitted, and is removed
The bandpass filter on other one-segment circuits beyond the i-th tunnel one-segment circuit suppresses the letter of i-th frequency range
Number it is transmitted；
The debugging operations to the i-th tunnel one-segment circuit are received, according to the debugging operations to i-th tunnel single-frequency
Section circuit is modified.
In one alternatively embodiment, the debugging operations include：At least one radiant body is changed；
It is described that the i-th tunnel one-segment circuit is modified according to the debugging operations, including：
At least one radiant body of the i-th tunnel one-segment circuit is modified according to the debugging operations.
In an optional embodiment, it is described according to the debugging operations to the i-th tunnel one-segment circuit at least
One radiant body is modified, including：
The length of at least one radiant body of the i-th tunnel one-segment circuit is modified according to the debugging operations,
And/or
The thickness of at least one radiant body of the i-th tunnel one-segment circuit is modified according to the debugging operations,
And/or the relative position according to the debugging operations at least two radiant bodies of the i-th tunnel one-segment circuit
Modify.
In an optional embodiment, the debugging operations include：Match circuit is modified；
It is described that the i-th tunnel one-segment circuit is modified according to the debugging operations, including：
The component values of the match circuit of the i-th tunnel one-segment circuit are modified according to the debugging operations,
And/or
The topological structure of the match circuit of the i-th tunnel one-segment circuit is modified according to the debugging operations.
It is described that the i-th tunnel one-segment circuit is repaiied according to the debugging operations in an optional embodiment
Change, including：
The i-th tunnel one-segment circuit is modified, the standing-wave ratio of the amended i-th tunnel one-segment circuit is less than
Predetermined threshold value,
And/or
The i-th tunnel one-segment circuit is modified, the return loss of the amended i-th tunnel one-segment circuit is small
In predetermined threshold value.
The technical scheme provided by this disclosed embodiment can include the following benefits：
, can be by inside each one-segment circuit by the way that the multiband circuit of antenna is split as into multiple one-segment circuits
Match circuit the one-segment circuit of antenna is debugged respectively；So as to avoid because multiple frequency ranges share one or one group
Radiant body and a match circuit, caused by for being influenced each other between the debugging of multiple frequency ranges the problem of, improve pair
The efficiency and success rate that antenna is debugged.
It should be appreciated that the general description and following detailed description of the above are only exemplary, this can not be limited
It is open.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and be used in specification to explain the principle of the disclosure together.
Figure 1A is a kind of structured flowchart of antenna according to an exemplary embodiment；
Figure 1B is a kind of structured flowchart of antenna according to another exemplary embodiment；
Fig. 2 is a kind of flow chart of antenna debugging method according to an exemplary embodiment；
Fig. 3 is a kind of linear statistical figure of antenna adjustment result according to an exemplary embodiment；
Fig. 4 is a kind of linear statistical figure of antenna adjustment result according to another exemplary embodiment；
Fig. 5 is a kind of flow chart of antenna debugging method according to another exemplary embodiment.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
Figure 1A is a kind of structured flowchart of antenna according to an exemplary embodiment.As shown in Figure 1A, the antenna 100
Include：Radiant body 110, match circuit 120, bandpass filter 130 and total port 140.
Radiant body 110 is used to receive and radiation signal, and the one-segment circuit formed to it is adjusted.Schematically
, radiant body 110 includes radiant body 111, radiant body 112 and radiant body 113.
The one-segment circuit that match circuit 120 is used to form it is adjusted, and schematically, match circuit 120 wraps
Include match circuit 121, match circuit 122 and match circuit 123.
Bandpass filter 130 is used to allow by also right signal corresponding to current one-segment circuit in frequency range
The signal of other frequency ranges in addition to frequency range corresponding to current one-segment circuit is filtered.Schematically, bandpass filter 130
Including bandpass filter 131, bandpass filter 132 and bandpass filter 133.
Schematically, radiant body 111, match circuit 121 and bandpass filter 131 form one-segment circuit all the way, spoke
Beam 112, match circuit 122 and bandpass filter 132 form one-segment circuit all the way, radiant body 113, match circuit 123
And bandpass filter 133 forms one-segment circuit all the way.
Wherein, radiant body 111, radiant body 112 and radiant body 113 can be that a radiant body can also be by more respectively
One group of radiant body that individual radiant body is formed, i.e., can include a radiant body, can also include multiple all the way in one-segment circuit
One group of radiant body that radiant body is formed.Alternatively, in the one-segment circuit of n roads, when kth frequency corresponding to the one-segment circuit of kth road
When the bandwidth of section is less than predetermined threshold value, kth road one-segment circuit includes a radiant body, wherein 1≤k≤n；When jth road is single
When the band of jth frequency range is wider than predetermined threshold value corresponding to frequency range circuit, the jth road one-segment circuit includes one group of radiant body,
One group of radiant body includes at least two radiant bodies, wherein 1≤j≤n.Alternatively, when one-segment circuit all the way include by
During one group of radiant body that at least two radiant bodies are formed, above-mentioned at least two radiant body is connected by way of electrical equipment is connected
Come.Above-mentioned three tunnels one-segment circuit is connected with total port 140 respectively.
Alternatively, above-mentioned bandpass filter may include：First electric capacity, the second electric capacity and the first inductance；The of first electric capacity
One end is connected with the first end of the first inductance, and the first end of the first inductance is the first end of bandpass filter；Second electric capacity
First end is connected with the second end of the first inductance, and the second end of the first inductance is the second end of bandpass filter；First electric capacity
The second end of the second end and the second electric capacity be grounded.
Alternatively, above-mentioned match circuit may include：3rd electric capacity, the 4th electric capacity and the second inductance；The first of 3rd electric capacity
End is connected with the first end of the second inductance, and the first end of the second inductance is the first end of match circuit；The first of 4th electric capacity
End is connected with the second end of the second inductance, and the second end of the second inductance is the second end of match circuit；The second of 3rd electric capacity
End and the second end of the 4th electric capacity are grounded.
Figure 1A schematically lists three one-segment circuits that antenna 100 includes, in practical operation, in antenna
The quantity of 100 one-segment circuit can be more or less, and the embodiment of the present invention is not limited to this.Included with antenna
Exemplified by the one-segment circuit of n roads, wherein, n >=2, the n roads one-segment circuit is connected with total port, each one-segment circuit bag
Include：Match circuit, bandpass filter, one or one group of radiant body.
The first end of match circuit in each one-segment circuit is connected with total port, the second end of match circuit and
The first end of bandpass filter is connected, and the second end of bandpass filter is connected with radiant body；Or, the band logical filter in one-segment circuit
The first end of ripple device is connected with total port, and the second end of bandpass filter is connected with the first end of match circuit, match circuit
Second end is connected with radiant body；Wherein, corresponding i-th frequency range of the i-th tunnel one-segment circuit, 1≤i≤n.
Wherein, total port is used for the signal for receiving at least one frequency range of radio frequency chip transmission, and will receive at least
The signal of one frequency range sends to n roads one-segment circuit and is transmitted；Bandpass filter in i-th tunnel one-segment circuit, is used for
The signal of other frequency ranges outside i-th frequency range corresponding to the one-segment circuit of the i-th tunnels of Jiang Chu is filtered；I-th tunnel one-segment circuit
In radiant body, for being transmitted to the signal of the i-th frequency range corresponding to the i-th tunnel one-segment circuit.
In an optional embodiment, the radiant body in the i-th tunnel one-segment circuit, for receive base station transmission with the
The signal of i-th frequency range corresponding to the one-segment circuit of i roads；Total port, for receiving the radiant body transmission in the i-th tunnel one-segment circuit
The i-th frequency range signal, and the signal of the i-th frequency range received is sent into radio frequency chip.
In an optional embodiment, in antennas per one-segment circuit all the way in bandpass filter, radiant body,
Between match circuit, and every connection all the way between one-segment circuit and block mouth is attached by microstrip line, should
Microstrip line is the connecting line that characteristic impedance is 50 ohm.
Schematically, the first microstrip line phase is passed through with total port per the first end of the match circuit in one-segment circuit all the way
Even, the second end of match circuit is connected with the first end of bandpass filter by the second microstrip line, the second end of bandpass filter
It is connected with radiant body by the 3rd microstrip line；Or, the first end per the bandpass filter in one-segment circuit all the way and total port
It is connected by the 4th microstrip line, the second end of bandpass filter is connected with the first end of match circuit by the 5th microstrip line,
The second end with circuit is connected with radiant body by the 6th microstrip line.
In a specific embodiment, the antenna is Wireless Fidelity WIFI antennas, above-mentioned n=2, two-way one-segment circuit
Zhong Mei roads one-segment circuit includes：One radiant body, a wave filter and a match circuit, by the two-way one-segment
Connection to total port,
As shown in Figure 1B, by taking antenna printing on a printed circuit board as an example, schematically, spoke is included in antenna 101
Beam 1101 and radiant body 1102, a width of 2mm of cabling of radiant body 1101 and radiant body 1102, adjacent traces edge spacing
0.5mm, wherein, feed point 151 is included on radiant body 1101, includes feed point 152 on radiant body 1102.
Feed point 151 on radiant body 1101 is connected with match circuit 1201, the match circuit 1201 include inductance 161,
Electric capacity 162 and electric capacity 163, alternatively, the value of inductance 161 is 3.6nH, and the value of electric capacity 162 is 1.2pF, the value of electric capacity 163
For 0.5pF, the first end of the electric capacity 162 is connected with the first end of inductance 161, the first end of electric capacity 163 and the second of inductance 161
End is connected, the second end ground connection of the second end of electric capacity 162 and electric capacity 163, and the first end of inductance 161 is the of match circuit 1201
One end, the second end of inductance 161 are the second end of match circuit 1201.Match circuit 1201 is connected with bandpass filter 1301,
The bandpass filter 1301 includes inductance 171, electric capacity 172 and electric capacity 173, and alternatively, the value of inductance 171 is 3.3nH,
The value of electric capacity 172 is 1.3pF, and the value of electric capacity 173 is 1.3pF, the first end of the electric capacity 172 and the first end of inductance 171
It is connected, the first end of electric capacity 173 is connected with the second end of inductance 171, the second end of electric capacity 172 and the second termination of electric capacity 173
Ground, the first end of inductance 171 are the first end of bandpass filter 1301, and the second end of inductance 171 is bandpass filter 1301
Second end.Above-mentioned radiant body 1101, match circuit 1201 and bandpass filter 1301 form the first one-segment circuit, and this first
One-segment circuit is used for the performance for realizing the first frequency range；Feed point 152 on radiant body 1102 is connected with match circuit 1202, this
It is made up of with circuit 1202 inductance 181, electric capacity 182 and electric capacity 183, alternatively, the value of inductance 181 is 1nH, electric capacity 182
Value is 1.7pF, and the value of electric capacity 183 is 1.6pF, and the first end of the electric capacity 182 is connected with the first end of inductance 181, electric capacity 183
First end be connected with the second end of inductance 181, the second end ground connection of the second end of electric capacity 182 and electric capacity 183, inductance 181
First end is the first end of match circuit 1202, and the second end of inductance 181 is the second end of match circuit 1202.Match circuit
1202 are connected with bandpass filter 1302, and the bandpass filter 1301 is made up of inductance 191, electric capacity 192 and electric capacity 193, can
Selection of land, the value of inductance 191 are 1.5nH, and the value of electric capacity 192 is 0.6pF, and the value of electric capacity 193 is 0.6pF, the electric capacity 192
First end be connected with the first end of inductance 191, the first end of electric capacity 193 is connected with the second end of inductance 191, electric capacity 192
Second end and the second end of electric capacity 193 ground connection, the first end of inductance 191 are the first end of bandpass filter 1302, inductance 191
Second end is the second end of bandpass filter 1302.Above-mentioned radiant body 1102, match circuit 1202 and bandpass filter 1302
The second one-segment circuit is formed, the second one-segment circuit is used for the performance for realizing the second frequency range.Then by bandpass filter
1301 are respectively connecting to total port 14 with bandpass filter 1302.The value of above-mentioned component is schematical value, in reality
In operation, the value of above-mentioned component can be voluntarily configured by design or commissioning staff.
In summary, by the way that the multiband circuit of antenna is split as into multiple one-segment circuits, each single-frequency can be passed through
Match circuit inside section circuit is debugged respectively to the one-segment circuit of antenna, is avoided because multiple frequency ranges share one
Or one group of radiant body and a match circuit, and the problem of cause to influence each other between the debugging for multiple frequency ranges, improve
The efficiency and success rate debugged to antenna.
Fig. 2 is the flow chart for the exemplary antenna debugging method that the disclosure provides, should with the antenna debugging method
For illustrating exemplified by antenna 100 as shown in Figure 1A, include n roads one-segment circuit in the antenna 100, wherein n >=
2, n road one-segment circuit Zhong Mei roads one-segment circuits include：Match circuit, bandpass filter, one or one group of radiant body, the
Corresponding i-th frequency range of i roads one-segment circuit.As shown in Fig. 2 the antenna debugging method includes：
Step 201, the signal of the i-th frequency range from radio frequency chip is received by total port.
Alternatively, antenna includes a total port, and the letter of the i-th frequency range from radio frequency chip is received by total port
Number, n roads one-segment circuit is included in antenna, wherein the i-th tunnel one-segment circuit is corresponding with i-th frequency range.
Schematically, alternatively, frequency range 2.4-2.484GHz signal is received by total port of the antenna.
Step 202, the signal of the i-th frequency range is sent to n roads one-segment circuit by total port.
Alternatively, after antenna receives the signal of the i-th frequency range by total port, the signal of i-th frequency range is sent to n roads
Every one-segment circuit all the way in one-segment circuit.Schematically, by microstrip line by total port and per one-segment circuit all the way
Connect, after total port receives the signal of the i-th frequency range, sent the signal of the i-th frequency range to per all the way by microstrip line
One-segment circuit.
Step 203, the signal for allowing the i-th frequency range by the bandpass filter on the i-th tunnel one-segment circuit is transmitted, and is removed
The signal that bandpass filter on other one-segment circuits beyond i-th tunnel one-segment circuit suppresses the i-th frequency range is transmitted.
I-th tunnel one-segment circuit is one-segment circuit corresponding with i-th frequency range, when total port is by the signal of the i-th frequency range
When sending to the i-th tunnel one-segment circuit, the bandpass filter of the i-th tunnel one-segment circuit detects i-th frequency range that receives
Signal and the i-th tunnel one-segment line matching, bandpass filter allow the signal of i-th frequency range to be transmitted；When total port will
When the signal of i-th frequency range sends other one-segment circuits outside the one-segment circuit of the i-th tunnels of Zhi Chu, on other one-segment circuits
Bandpass filter detects that the signal of i-th frequency range received frequency range corresponding with the one-segment circuit at place is not inconsistent, and suppresses
The signal of i-th frequency range is transmitted.
Step 204, the debugging operations to the i-th tunnel one-segment circuit are received, according to debugging operations to the i-th tunnel one-segment line
Modify on road.
The debugging operations can be the modification at least one radiant body or the modification to match circuit.It is optional
Ground, by being modified to the i-th tunnel one-segment circuit, the standing-wave ratio of amended i-th tunnel one-segment circuit is less than predetermined threshold value,
And/or the return loss of amended i-th tunnel one-segment circuit is less than predetermined threshold value.
Schematically, target one-segment circuit includes at least one radiant body and match circuit, when target one-segment
When circuit includes a radiant body, can according to length of the debugging operations to the radiant body, the thickness to the radiant body, to
Component values with circuit, the topological structure to match circuit are modified.When target one-segment circuit includes at least two
, can also be by the relative position between at least two radiant bodies in addition to above-mentioned modification mode when radiant body and match circuit
Modify.
Schematically, be specifically described by taking the antenna 100 shown in Figure 1A as an example, radiant body 111, match circuit 121 with
And bandpass filter 131 forms the first one-segment circuit, the signal phase of the first one-segment circuit and frequency range 2.4-2.484GHz
Matching, radiant body 112, match circuit 122 and bandpass filter 132 form the second one-segment circuit, the second one-segment line
Road and frequency range 5.1-5.8GHz signal match, and radiant body 113, match circuit 123 and bandpass filter 133 form the 3rd
One-segment circuit, the signal of the 3rd one-segment circuit and frequency range 7.1-7.8GHz match.Total port receives frequency range 2.4-
2.484GHz signal, and the signal received is sent to the first one-segment circuit, the second one-segment circuit and the 3rd list
Frequency range circuit, the bandpass filter 131 of the first one-segment circuit detect the signal received and the first one-segment line matching,
And match circuit is sent the signal to, the band logical of the one-segment circuit of bandpass filter 132 and the 3rd of the second one-segment circuit
Wave filter 133 detects that the signal received does not match that with the second one-segment circuit and the 3rd one-segment circuit, to receiving
To signal intercepted.Antenna receives the adjustment operation to the first one-segment circuit, and single to first according to adjustment operation
Frequency range circuit is modified, and the adjustment is operated for being adjusted to the standing-wave ratio of the first one-segment circuit, and/or, to first
The return loss of one-segment circuit is debugged, and/or, the gain to the first one-segment circuit is debugged.
Schematically, as shown in Fig. 3 debugging result linear statistical figure, using the predetermined threshold value of return loss as -9.54dB
Exemplified by, frequency range corresponding to the first one-segment circuit is 2.4-2.484GHz, and when signal is 2.4-2.484GHz signal, this
The return loss of one one-segment circuit is smaller than -10dB, meets the requirement that return loss is less than predetermined threshold value；Second one-segment line
Frequency range corresponding to road is 5.1-5.8GHz, when signal is 5.1-5.8GHz signal, the echo damage of the second one-segment circuit
Consumption is smaller than -10dB, meets the requirement that return loss is less than predetermined threshold value.
Schematically, so that the gain to the first one-segment circuit is debugged as an example, as shown in figure 4, in radiation intensity most
Weak direction, the gain of the first one-segment circuit are more than -9dBi, meet the requirement that gain is more than predetermined threshold value.
In summary, by the way that the multiband circuit of antenna is split as into multiple one-segment circuits, each single-frequency can be passed through
Match circuit inside section circuit is debugged respectively to the one-segment circuit of antenna, is avoided because multiple frequency ranges share one
Or one group of radiant body and a match circuit, and the problem of cause to influence each other between the debugging for multiple frequency ranges, improve
The efficiency and success rate debugged to antenna.
Fig. 5 is the flow chart of another exemplary antenna debugging method that the disclosure provides.As shown in figure 5, the antenna
Adjustment method includes：
Step 501, the signal of the i-th frequency range from radio frequency chip is received by total port.
Alternatively, antenna includes a total port, and the letter of the i-th frequency range from radio frequency chip is received by total port
Number, n roads one-segment circuit is included in antenna, wherein the i-th tunnel one-segment circuit is corresponding with i-th frequency range.
Schematically, alternatively, frequency range 2.4-2.484GHz signal is received by total port of the antenna.
Step 502, the signal of the i-th frequency range is sent to n roads one-segment circuit by total port.
Alternatively, after antenna receives the signal of the i-th frequency range by total port, the signal of i-th frequency range is sent to n roads
Every one-segment circuit all the way in one-segment circuit.Schematically, by microstrip line by total port and per one-segment circuit all the way
Connect, after total port receives the signal of the i-th frequency range, sent the signal of the i-th frequency range to per all the way by microstrip line
One-segment circuit.
Step 503, the signal for allowing the i-th frequency range by the bandpass filter on the i-th tunnel one-segment circuit is transmitted, and is removed
The signal that bandpass filter on other one-segment circuits beyond i-th tunnel one-segment circuit suppresses the i-th frequency range is transmitted.
I-th tunnel one-segment circuit is one-segment circuit corresponding with i-th frequency range, when total port is by the signal of the i-th frequency range
When sending to the i-th tunnel one-segment circuit, the bandpass filter of the i-th tunnel one-segment circuit detects i-th frequency range that receives
Signal and the i-th tunnel one-segment line matching, bandpass filter allow the signal of i-th frequency range to be transmitted；When total port will
When the signal of i-th frequency range sends other one-segment circuits outside the one-segment circuit of the i-th tunnels of Zhi Chu, on other one-segment circuits
Bandpass filter detects that the signal of i-th frequency range received frequency range corresponding with the one-segment circuit at place is not inconsistent, and suppresses
The signal of i-th frequency range is transmitted.
Step 504, the debugging operations to the i-th tunnel one-segment circuit are received.
The debugging operations can the modification of at least one radiant body can also be to matching in the one-segment circuit of the i-th tunnels of Shi Dui
The modification of circuit.
Step 505, the length of at least one radiant body of the i-th tunnel one-segment circuit is modified according to debugging operations.
Alternatively, the i-th tunnel one-segment circuit includes one or more radiant bodies, when the i-th tunnel one-segment circuit includes
During one radiant body, the length of the radiant body is modified, it is right when the i-th tunnel one-segment circuit includes multiple radiant bodies
The thickness of at least one radiant body in the plurality of radiant body is modified.
Step 506, the thickness of at least one radiant body of the i-th tunnel one-segment circuit is modified according to debugging operations.
Alternatively, the i-th tunnel one-segment circuit includes one or more radiant bodies, when the i-th tunnel one-segment circuit includes
During one radiant body, the thickness of the radiant body is modified, it is right when the i-th tunnel one-segment circuit includes multiple radiant bodies
The thickness of at least one radiant body in the plurality of radiant body is modified.
Step 507, the relative position of at least two radiant bodies of the i-th tunnel one-segment circuit is repaiied according to debugging operations
Change.
Alternatively, when the i-th tunnel one-segment circuit includes at least two radiant bodies, to the phase of at least two radiant body
Position is modified.
Step 508, the component values of the match circuit of the i-th tunnel one-segment circuit are modified according to debugging operations.
Alternatively, the number of at least one electric capacity in the match circuit of the i-th tunnels of debugging operations Ke Dui one-segment circuit
Value is modified, and also the numerical value of the inductance in the one-segment circuit of the i-th tunnels of Ke Dui is modified.
Step 509, the topological structure of the match circuit of the i-th tunnel one-segment circuit is modified according to debugging operations.
Alternatively, the electric capacity in the match circuit of the i-th tunnels of debugging operations Ke Dui one-segment circuit and inductance is relative
Modify position.
Above-mentioned steps 505 to step 509 can independently execute, and multiple steps that can also be combined with each other perform together, are holding
During row, wherein one or more can be performed, the embodiment of the present invention is not limited to this.And above-mentioned steps 505 are to step
The modification of rapid the i-th tunnels of 509 Zhong Dui one-segment circuit can be modified by commissioning staff, can also be repaiied by Machine automated
Change, the embodiment of the present invention is not limited to this.
In summary, by the way that the multiband circuit of antenna is split as into multiple one-segment circuits, each single-frequency can be passed through
Match circuit inside section circuit is debugged respectively to the one-segment circuit of antenna, is avoided because multiple frequency ranges share one
Or one group of radiant body and a match circuit, caused by for multiple frequency ranges debugging between influence each other the problem of, carry
The high efficiency and success rate debugged to antenna；During being debugged to multiple one-segment circuits, due to every
The adjustment method of individual one-segment circuit has a variety of, when a kind of adjustment method is unable to reach Expected Results wherein, passes through a variety of tune
Method for testing superposition is debugged, and improves the degree of accuracy of the debugging to antenna.
Those skilled in the art will readily occur to the disclosure its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or
Person's adaptations follow the general principle of the disclosure and including the undocumented common knowledges in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by following
Claim is pointed out.
It should be appreciated that the precision architecture that the disclosure is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (13)
1. a kind of antenna, it is characterised in that the antenna includes：N roads one-segment circuit, and, with the n roads one-segment circuit phase
Total port even, wherein n >=2；
Each one-segment circuit includes：Match circuit, bandpass filter, one or one group of radiant body；
The first end of the match circuit in the one-segment circuit is connected with total port, and the second of the match circuit
End is connected with the first end of the bandpass filter, and the second end of the bandpass filter is connected with the radiant body；It is or, described
The first end of the bandpass filter in one-segment circuit is connected with total port, the second end of the bandpass filter with
The first end of the match circuit is connected, and the second end of the match circuit is connected with the radiant body；
Wherein, corresponding i-th frequency range of the i-th tunnel one-segment circuit, 1≤i≤n.
2. antenna according to claim 1, it is characterised in that
Total port, the signal of at least one frequency range for receiving radio frequency chip transmission, and described in receiving at least
The signal of one frequency range sends to the n roads one-segment circuit and is transmitted；
The bandpass filter in the i-th tunnel one-segment circuit, for that will remove corresponding to the i-th tunnel one-segment circuit
The signal of other frequency ranges outside i frequency ranges is filtered；
The radiant body in the i-th tunnel one-segment circuit, for the i-th frequency range corresponding to the i-th tunnel one-segment circuit
Signal be transmitted.
3. antenna according to claim 1, it is characterised in that
The first end of the match circuit in the one-segment circuit is connected with total port by the first microstrip line, described
Second end of match circuit is connected with the first end of the bandpass filter by the second microstrip line, and the of the bandpass filter
Two ends are connected with the radiant body by the 3rd microstrip line；
Or,
The first end of the bandpass filter in the one-segment circuit is connected with total port by the 4th microstrip line, institute
State the second end of bandpass filter with the first end of the match circuit by the 5th microstrip line to be connected, the of the match circuit
Two ends are connected with the radiant body by the 6th microstrip line.
4. antenna according to claim 1, it is characterised in that
The bandwidth of kth frequency range is less than predetermined threshold value corresponding to the one-segment circuit of kth road；The kth road one-segment circuit includes
One radiant body, 1≤k≤n.
5. antenna according to claim 1, it is characterised in that
The band of jth frequency range is wider than predetermined threshold value corresponding to the one-segment circuit of jth road；The jth road one-segment circuit includes
One group of radiant body, one group of radiant body include at least two radiant bodies, 1≤j≤n.
6. antenna according to claim 1, it is characterised in that the bandpass filter includes：First electric capacity, the second electric capacity
With the first inductance；
The first end of first electric capacity is connected with the first end of first inductance, and the first end of first inductance is institute
State the first end of bandpass filter；
The first end of second electric capacity is connected with the second end of first inductance, and the second end of first inductance is institute
State the second end of bandpass filter；
Second end of first electric capacity and the second end of second electric capacity are grounded.
7. antenna according to claim 1, it is characterised in that the match circuit includes：3rd electric capacity, the 4th electric capacity and
Second inductance；
The first end of 3rd electric capacity is connected with the first end of second inductance, and the first end of second inductance is institute
State the first end of match circuit；
The first end of 4th electric capacity is connected with the second end of second inductance, and the second end of second inductance is institute
State the second end of match circuit；
Second end of the 3rd electric capacity is grounded with the second end of the 4th electric capacity.
8. antenna according to any one of claims 1 to 7, it is characterised in that the antenna is Wireless Fidelity WIFI antennas, institute
State n=2；
One-segment circuit Zhong Mei roads one-segment circuit includes described in two-way：One radiant body, a wave filter
An and match circuit.
9. a kind of antenna debugging method, it is characterised in that the antenna includes：N roads one-segment circuit and with n roads single-frequency
The connected total port of section circuit, wherein n >=2, n roads one-segment circuit Zhong Mei roads one-segment circuit include：Match circuit,
Bandpass filter, one or one group of radiant body, it is described per road one-segment circuit in corresponding i-th frequency range of the i-th tunnel one-segment circuit, 1
≤i≤n；
Methods described includes：
The signal of the i-th frequency range from radio frequency chip is received by total port；
The signal of i-th frequency range is sent to the n roads one-segment circuit by total port；
The signal for allowing i-th frequency range by the bandpass filter on the i-th tunnel one-segment circuit is transmitted, except described
The signal that the bandpass filter on other one-segment circuits beyond i-th tunnel one-segment circuit suppresses i-th frequency range enters
Row transmission；
The debugging operations to the i-th tunnel one-segment circuit are received, according to the debugging operations to the i-th tunnel one-segment line
Modify on road.
10. according to the method for claim 9, it is characterised in that the debugging operations include：At least one radiant body is repaiied
Change；
It is described that the i-th tunnel one-segment circuit is modified according to the debugging operations, including：
At least one radiant body of the i-th tunnel one-segment circuit is modified according to the debugging operations.
11. according to the method for claim 10, it is characterised in that described single to i-th tunnel according to the debugging operations
At least one radiant body of frequency range circuit is modified, including：
The length of at least one radiant body of the i-th tunnel one-segment circuit is modified according to the debugging operations,
And/or
The thickness of at least one radiant body of the i-th tunnel one-segment circuit is modified according to the debugging operations,
And/or the relative position of at least two radiant bodies of the i-th tunnel one-segment circuit is carried out according to the debugging operations
Modification.
12. according to the method for claim 9, it is characterised in that the debugging operations include：Match circuit is repaiied
Change；
It is described that the i-th tunnel one-segment circuit is modified according to the debugging operations, including：
The component values of the match circuit of the i-th tunnel one-segment circuit are modified according to the debugging operations,
And/or
The topological structure of the match circuit of the i-th tunnel one-segment circuit is modified according to the debugging operations.
13. according to the method for claim 9, it is characterised in that it is described according to the debugging operations to i-th tunnel single-frequency
Section circuit is modified, including：
The i-th tunnel one-segment circuit is modified, the standing-wave ratio of the amended i-th tunnel one-segment circuit, which is less than, to be preset
Threshold value,
And/or
The i-th tunnel one-segment circuit is modified, the return loss of the amended i-th tunnel one-segment circuit is less than in advance
If threshold value.
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| CN107645346B (en) | 2021-06-04 |
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