CN110326161A - Helical antenna and communication equipment - Google Patents
Helical antenna and communication equipment Download PDFInfo
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- CN110326161A CN110326161A CN201880010528.3A CN201880010528A CN110326161A CN 110326161 A CN110326161 A CN 110326161A CN 201880010528 A CN201880010528 A CN 201880010528A CN 110326161 A CN110326161 A CN 110326161A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground
Abstract
The application provides a kind of helical antenna and communication equipment, the helical antenna includes the first spiral arm, the second spiral arm and feed port, first spiral arm self feeding port extends spirally, and the second spiral arm is disposed adjacent with the first spiral arm, and the extending direction of the second spiral arm is identical as the first spiral arm；First spiral arm and the second spiral arm are electrically connected to feed port, the electrical length of second spiral arm is different from the electrical length of the first spiral arm, antenna further includes third spiral arm, third spiral arm is set to side of second spiral arm far from the first spiral arm, and the extending direction of third spiral arm is identical as the second spiral arm, there is the first gap between third spiral arm and the second spiral arm, generate and couple between the second spiral arm and third spiral arm.By above-mentioned setting, so that antenna there can be multifrequency point, meet the requirement of multisystem covering.
Description
Technical field
This application involves communication antenna technical fields, and in particular to a kind of helical antenna and communication equipment.
Background technique
With the arriving of information age, satellite communication, navigation, positioning and its related application and people's lives increasingly phase
It closes.It is universal with satellite navigation application, it the considerations of many countries are for national defence or economically, all researches and develops in succession, build oneself
Navigation system.And with system and deposit, be compatible with interoperability progress faster, traditional GPS epoch are just gradually being changed into more
Coexistence of systems compatible Global Navigation Satellite System epoch, such as GPS (Global Positioning
System) L1, L2 frequency range of GPS, L1, L2 frequency range of GLONASS global positioning system GLONASS, Beidou Navigation System
B1, B2 frequency range, therefore the positioning antenna for developing multisystem covering is necessary.
Current positioning antenna is mainly that four spiral arms are constituted, and existing four spiral arms can only radiate or receive single-frequency
The electromagnetic wave signal of point has been difficult to meet the requirement of multisystem covering.
Summary of the invention
In order to solve the above technical problems, the application provides a kind of helical antenna, it is able to satisfy the requirement of multisystem covering.
In a first aspect, this application provides a kind of helical antenna, including the first spiral arm, the second spiral arm and feed end
Mouthful, first spiral arm is extended spirally from the feed port, and second spiral arm is adjacent with first spiral arm to be set
It sets, and the extending direction of second spiral arm is identical as first spiral arm；First spiral arm and second spiral shell
Spiral arm is electrically connected to the feed port, and the electrical length of second spiral arm is different from the electrical length of first spiral arm；
The antenna further includes third spiral arm, and the third spiral arm is set to second spiral arm far from first spiral arm
Side, and the extending direction of the third spiral arm is identical as second spiral arm, the third spiral arm and described the
There is the first gap between two spiral arms, generate and couple between second spiral arm and the third spiral arm.
Second aspect, present invention also provides any one of a kind of communication equipments, including the various implementations of first aspect
The helical antenna.
The application is by the second spiral arm of setting, and the electrical length of the electrical length of the second spiral arm and the first spiral arm is not
Together, so that can also be with radiated electromagnetic wave in the second spiral arm, and the resonance frequency of the electromagnetic wave radiated in the second spiral arm and the
The difference of one spiral arm meets the requirement of multisystem covering so that integrated antenna can have multifrequency point.
Detailed description of the invention
Fig. 1 a is a kind of schematic perspective view of the helical antenna of embodiment.
Fig. 1 b is a kind of structural schematic diagram of the tuning switch of embodiment.
Fig. 1 c is a kind of planar structure schematic diagram of the third spiral arm of embodiment.
Fig. 1 d is the planar structure schematic diagram of the third spiral arm of another embodiment.
Fig. 1 e is the planar structure schematic diagram of the third spiral arm of another embodiment.
Fig. 2 is return loss (S11) schematic diagram of antenna.
Fig. 3 a is the antenna face E overall gain direction schematic diagram at 1.58GHz.
Fig. 3 b is the antenna face E actual gain direction schematic diagram at 1.58GHz.
Fig. 3 c is that E face axis of the antenna at 1.58GHz compares direction schematic diagram.
Fig. 4 a is the antenna face E overall gain direction schematic diagram at 1.23GHz.
Fig. 4 b is the antenna face E actual gain direction schematic diagram at 1.23GHz.
Fig. 4 c is that E face axis of the antenna at 1.23GHz compares direction schematic diagram.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application is clearly retouched
It states, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Based on the application
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall in the protection scope of this application.
It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component
Or there may also be components placed in the middle.When a component is considered as " connection " another component, it, which can be, is directly connected to
To another component or it may be simultaneously present component placed in the middle.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
With reference to the accompanying drawing, it elaborates to some embodiments of the application.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
The embodiment of the present application provides a kind of communication equipment, including helical antenna provided by the present application.Communication equipment can be
Unmanned plane, automobile etc..By using the scheme of the helical antenna of the application, it can make communication equipment that there is the spy of multifrequency point
Point can satisfy the requirement of multisystem covering, more accurate positioning.
Fig. 1 a is please referred to, the embodiment of the present application provides a kind of helical antenna, including the first spiral arm 21, the second spiral arm 22
With feed port 30.First spiral arm 21 is extended spirally from the feed port 30, second spiral arm 22 with it is described
First spiral arm 21 is disposed adjacent, and the extending direction of second spiral arm 22 is identical as first spiral arm 21.It is described
First spiral arm 21 and second spiral arm 22 are electrically connected to the feed port 30, the electrical length of second spiral arm 22
It is different from the electrical length of first spiral arm 21.The antenna further includes third spiral arm 23, and the third spiral arm 23 is set
Be placed in side of second spiral arm 22 far from first spiral arm 21, and the extending direction of the third spiral arm 23 with
Second spiral arm 22 is identical.There is the first gap 15, institute between the third spiral arm 23 and second spiral arm 22
It states to generate between the second spiral arm 22 and the third spiral arm 23 and couple.The third spiral arm 23 is for adjusting the antenna
Resonant state.
By the way that the second spiral arm 22 is arranged, and the electrical length of the electrical length of the second spiral arm 22 and the first spiral arm 21 is not
Together, so that can also be with radiated electromagnetic wave in the second spiral arm 22, and the resonance frequency of the electromagnetic wave radiated in the second spiral arm 22
Meet the requirement of multisystem covering so that integrated antenna there can be multifrequency point with the difference of the first spiral arm 21.
Wherein, when generating resonance in the first spiral arm 21, the resonance of integrated antenna is adjusted in the second spiral arm 22；Second
In spiral arm 22 generate resonance when, the first spiral arm 21 can antenna integrated antenna resonance.Therefore, the second spiral arm 22 is set,
It can also interact with the first spiral arm 21 and make the bandwidth of integrated antenna wider.
Second spiral arm 22 and the first spiral arm 21 are jointly electrically connected to feed port 30, can use the second spiral arm 22
End 221 and the first spiral arm 211 end 211 (first end i.e. hereinafter) between connect a linkage section 24 realization, from
And the electric current of 30 feed-in of feed port is allowed to flow into the second spiral section 22.
First spiral arm 21, second spiral arm 22 and the third spiral arm 23 constitute spiral arm group, described
The antenna feed port 30 corresponding with each spiral arm group that includes four identical spiral arm groups, and four institutes
The size of current for stating feed port is identical, and phase successively differs 90 °.Four spiral arm groups are arranged successively setting, and enclose
Form space cylindrical or conical.
It is arranged that size is identical, phase successively differs 90 ° of feed current, may make antenna that there is cardioid pattern, well
The when excellent broad beam circular polarization characteristics in front and back, be very suitable for the receiving antenna as global position system.And it is arranged four
The space that a spiral arm group is formed is cylindrical or conical, can enhance the antenna gain in the face E in directional diagram, be conducive to receive micro-
The electromagnetic wave signal of weak satellite.Compared to cylinder, under identical size, the antenna gain in the face E in conical directional diagram
It is some higher, there is better effect.Such as setting and cylindrical identical antenna gain, then conical antenna size can be done
It is smaller.
In other embodiments, the quantity of the spiral arm group of antenna can also be other quantity, for example, the even numbers such as 6 groups, 8 groups
Group.
The electrical length of first spiral arm 21 is greater than the electrical length of second spiral arm 22, and the feed port 30 is used
In the electromagnetic wave signal of the first frequency range of feed-in and the electromagnetic wave signal of the second frequency range, the frequency of first frequency range is greater than described the
Two frequency ranges.The resonance of first frequency range is generated in first spiral arm 21, and described is generated in second spiral arm 22
The resonance of two frequency ranges.The electrical length of first spiral arm 21 is the quarter-wave of the electromagnetic wave signal of first frequency range
Long, the electrical length of second spiral arm is the quarter-wave of the electromagnetic wave signal of second frequency range, so that described the
The electrical length of one spiral arm is greater than the electrical length of second spiral arm.
The electrical length of third spiral arm 23 is identical as the second spiral arm 22.Due to the presence in the first gap 15, the second spiral shell
Spiral arm 22 generates electromagnetic excitation to third spiral arm 23, so that equally can produce resonance in third spiral arm 23, and with second
Resonance coupling in spiral arm 22, so as to expand the bandwidth of the second frequency range.
The resonance of the first frequency range is generated in first spiral arm 21, and the resonance of the second frequency range is generated in the second spiral arm 22.The
One frequency range can be 1.54GHz-1.65GHz, and the second frequency range can be 1.2GHz-1.24GHz.Since L1, L2 of GPS are respectively
L1, L2 of 1575.42MHz and 1228MHz, GLONASS are respectively 1602+0.5625*kMHz and 1246+0.4375*kMHz, north
B1, B2 of bucket are respectively 1559.052-1591.788MHz and 1166.22-1217.37MHz, therefore, first frequency of the present embodiment
Section and the second frequency range can cover L1, L2 of GPS, L1, L2 of GLONASS, and B1, B2 frequency range of Beidou meet multisystem covering
Requirement.
First spiral arm 21 includes opposite first end 211 and second end 212, the first end 211 and the feedback
Electric port 30 is electrically connected, and the second end 212 is end of first spiral arm 21 far from the first end 211, and described the
The rotation angle of two ends and the first end 211 is 150 °~210 °.Preferably, the second end 212 and the first end 211
Rotation angle be 180 °.It should be appreciated that it is 360 ° that the first spiral arm 21, which rotates a circle, therefore rotating 180 ° is half cycle, at this time the
One end 211 and second end 212 were located on the same plane of cylindrical or cone central axes.
In a kind of embodiment, the second end of two opposite first spiral arms 21 in four spiral arm groups
212 are electrically connected to each other, so that two opposite 21 short circuits of the first spiral arm.Since four spiral arm groups are arranged successively, tool
There are 1,2,3 and 4 to put in order, two opposite the first spiral arms 21 refer to two to put in order as 1 and 3 (or 2 and 4)
First spiral arm 21.It is connected specifically, the second end 212 of two the first spiral arms 21 passes through short-circuit arm 26, short-circuit arm 26 can
It is arranged in a plane, such as on the top surface of cylinder or cone that encloses of four spiral arm groups.Two the first spiral arms 21
Total electrical length with a short-circuit arm 26 is the half wavelength of the electromagnetic wave of the first frequency range, i.e., short-circuit arm 26 can also join
With radiate and receive electromagnetic wave so that the electrical length of the first spiral arm 21 can shorten, so that the overall dimensions of antenna subtract
It is small.If the electrical length of the first spiral arm 21 is without shortening, short-circuit arm 26, which is arranged, also can be enhanced the gain in the face E in directional diagram.
Opposite two the first spiral arms, 21 short circuit in four spiral arm groups, and two adjacent the first spiral arms 21 are to open
Road guarantees that antenna radiation pattern keeps heart-shaped.In other embodiments, two opposite the first spiral arms 21 are open circuit design, i.e., the
The second end 212 of one spiral arm 21 is not connected to short-circuit arm 26, and heart-shaped directional diagram equally also may be implemented.
In a kind of embodiment, the third spiral arm 23 is electrically connected with second spiral arm 22.Pass through third spiral arm
23 are electrically connected with the second spiral arm 22, so that the resonance generated in third spiral arm 23 provides electric current, phase by the second spiral arm 22
For the resonance only generated by electromagnetic excitation than not being electrically connected in third spiral arm 23 and the second spiral arm 22, the can be widened
The overall bandwidth of two frequency ranges.
In a kind of embodiment, the third spiral arm 23 includes third end 231 and the 4th end 232, the third end 231 with
Second spiral arm 22 is electrically connected far from one end 222 of the feed port 30, the 4th end 232 ground connection.A kind of implementation
In example, the 4th end 232 connects a ground section 27, and ground section 27 is grounded.In other embodiments, the 4th end 232 is directly grounded.
In a kind of embodiment, Fig. 1 a and Fig. 1 b are please referred to, the 4th end 232 is also connected with tuning switch 28, the tune
Humorous switch 28 is equipped with multiple tuning devices 282, and the tuning switch 28, which passes through, connects the different tuning devices 282, so that
The antenna has different resonant states.
Wherein, the connection of tuning switch 28 is realized by the unlatching of switch 281 and closure, tuning switch 28 including it is multiple simultaneously
The tuning device 282 of connection, each tuning device are in series with a switch 281, one end far from the 4th end 232 of tuning switch 28
Ground connection.Tuning device 282 can be capacitor or inductance.In the present embodiment, tuning switch 28 connects different tuning devices
282, it can make third spiral arm 23 that there is different electrical length, so that the frequency bandwidth of the resonance generated is adjustable, meet
Bandwidth requirement.
Fig. 1 c and Fig. 1 d are please referred to, the second gap 234, second gap 234 are offered in the third spiral arm 23
Extending direction it is identical as the extending direction of the third spiral arm 23；Alternatively, second gap 234 makes the third spiral shell
Spiral arm 23 forms the structure that multistage disconnects.By opening up the second gap 234 in third spiral arm 23, thus it is possible to vary third spiral
The electrical length of arm 23, and then adjust the resonance of integrated antenna.
In a kind of embodiment, Fig. 1 e is please referred to, the third spiral arm 23 includes a plurality of, a plurality of third spiral arm 23
In be spaced setting between adjacent two third spiral arms 23.It is a plurality of and interval setting that third spiral arm 23, which is arranged, is made
Obtaining has third gap 235 between a plurality of third spiral arm 23, a plurality of third spiral arm 23 is constituted whole whole to antenna
There is good tunning effect, is convenient for broadened bandwidth.
In a kind of embodiment, the part third spiral arm 23 and second spiral in a plurality of third spiral arm 23
Arm 22 is electrically connected.Setting unit third spiral arm 23 is electrically connected with the second spiral arm 22, and remaining third spiral arm 23 and
Two spiral arms 22 are not electrically connected, so that the resonant state of a plurality of third spiral arm 23 changes, and then widen the bandwidth of integrated antenna.
In a kind of embodiment, the part third spiral arm 23 is grounded in a plurality of third spiral arm 23.Setting unit
Third spiral arm 23 is grounded, and remainder third spiral arm 23 is earth-free, can equally make the humorous of a plurality of third spiral arm 23
Vibration state changes, and then widens the bandwidth of integrated antenna.
In a kind of embodiment, Fig. 1 a is please referred to, the antenna further includes the support column 11 being stacked, support plate 12 and pier
Son 13, described block of wood 13 is contained in the space that four spiral arm groups are enclosed, and the support plate 12 is for being grounded, institute
Support column 11 is stated equipped with feeder line.In the present embodiment, support column 11, support plate 12 and block of wood 13 are made of insulating materials.Pier
Supporting body of the son 13 as four spiral arm groups can carry out good support to four spiral arm groups, guarantee antenna overall structure
Stabilization.In addition, four spiral arm groups are arranged on block of wood 13 of insulation, the work that intercouples between spiral arm group can be reduced
With promoting the gain of antenna.The feeder line being arranged on support column 11 can be the coaxial cable of 50ohm, and support column 11 is pipe
Shape structure, coaxial cable are arranged in the hollow cavity of support column 11.Support column 11 or other shapes, such as the frustum of a cone
Shape, rectangle, frame shape etc..Support column 11 is equipped with the connecting interface with the first spiral arm 21 close to one end of support plate 12.Support
Plate 12 is the ground connection plane of reference, and third spiral arm 23 is connected in support plate 12.
Since the shape of block of wood 13 can further include one end far from support plate 12 for cylindrical or cone, block of wood 13
First surface 16, when being provided with short-circuit arm 26, short-circuit arm 26 is arranged on first surface 16.It follows that block of wood 13 is circle
When taper, the lesser one end of size is also not tip, but (certainly, the lesser one end of size may be first surface 16
The surface being connect with support plate 12).One end that block of wood 13 is connect with connecting plate 12 can also set transition part 131, and transition part 131 can be with
For cylinder, and the main part rounding off with block of wood 13.The linkage section 24 and ground section 27 of antenna can be set in transition
In portion 131, so that the main body of complete block of wood is arranged in the first spiral arm 21, the second spiral arm 22 and third spiral arm 23
On part, interference of the non-radiative part to the first spiral arm 21, the second spiral arm 22 and third spiral arm 23 is reduced.
In a kind of embodiment, first spiral arm 21 and second spiral arm 22 pass through laser direct structuring technique
(LDS, Laser Direct Structuring) is produced on described block of wood 13, first spiral arm 21 and second spiral shell
The relative dielectric constant of spiral arm 22 is greater than 3.5.Using LDS processing technology, process stabilizing is reliable.For antenna material, one
As antenna material counterpart node constant be 2.9-3.2, and use counterpart node constant greater than 3.5 material production first
Spiral arm 21 and the second spiral arm 22 can have so that counterpart node constant is larger when realizing identical antenna radiation performance
Effect reduces the size of antenna, convenient for miniaturization.Preferably, opposite Jie of first spiral arm 21 and second spiral arm 22
Electric constant is 4.2.Certainly, the manufacture craft of the first spiral arm 21 and the second spiral arm 22 can also use other techniques, such as
It is attached on block of wood 13 using being rolled again after FPC or Fr4 printing.
A kind of simulation result of the antenna of embodiment is provided below, to illustrate the beneficial effect of the technical solution of the application.
Fig. 1 a is please referred to, helical antenna includes the first spiral arm 21, the second spiral arm 22 and third spiral arm 23, relatively two
A first spiral arm 21 passes through short-circuit 26 short circuit of arm, and third spiral arm 23 is grounded.It is emulated using this antenna structure as model,
As a result as follows:
Referring to FIG. 2, Fig. 2 is return loss (S11) schematic diagram of antenna, abscissa is frequency (GHz), ordinate in figure
For S11 parameter (dB).As shown in Figure 2, antenna realizes S11 < -10dB in 1.2GHz-1.24GHz and 1.54GHz-1.65GHz,
L1, L2 of L1, L2 of frequency coverage GPS, GLONASS, B1, B2 of Beidou realize three moulds six and position Antenna Design frequently.
Fig. 3 a is please referred to, Fig. 3 a is the antenna face E overall gain direction schematic diagram at 1.58GHz, and abscissa is Theta in figure
Angle (deg), ordinate are overall gain GainTotal (dB), and overall gain reaches 4.373dB, high gain.
Fig. 3 b is please referred to, Fig. 3 b is the antenna face E actual gain direction schematic diagram at 1.58GHz, and abscissa is in figure
The angle Theta (deg), ordinate are real total gain (dB), and real total gain reaches 3.76dB, and antenna efficiency is higher.
Please refer to Fig. 3 c, Fig. 3 c is E face axis of the antenna at 1.58GHz than direction schematic diagram, and abscissa is Theta in figure
Angle (deg), ordinate are axis ratio Axial Ratio Value (dB), and axis ratio is 0dB right above antenna, illustrates circular polarisation performance
It is good.
Fig. 4 a is please referred to, Fig. 4 a is the antenna face E overall gain direction schematic diagram at 1.23GHz, and abscissa is Theta in figure
Angle (deg), ordinate are overall gain GainTotal (dB), and gain reaches 3.7dB, high gain.
Fig. 4 b is please referred to, Fig. 4 b is that the antenna face E actual gain direction schematic diagram, real total gain at 1.23GHz reach
2.53dB, antenna are also higher in the efficiency of L2 and B2 frequency range.
Fig. 4 c is please referred to, Fig. 4 c is E face axis of the antenna at 1.23GHz than direction schematic diagram, and antenna surface axis ratio is
0dB, antenna are also fine in the circular polarisation performance of L2 and B2 frequency range.
In above-mentioned each analogous diagram, the face E refers to the section of the antenna radiation pattern parallel with direction of an electric field.It is tied by above-mentioned emulation
Fruit, can it is found that helical antenna provided by the embodiments of the present application has the characteristics that high-gain, high efficiency, low axis are better than with circular polarisation
L1, L2 of GPS, L1, L2 of GLONASS are covered, B1, B2 frequency range of Beidou meet the requirement of multisystem covering.
A kind of helical antenna and communication equipment provided by the embodiment of the present application are described in detail above, herein
It applies specific case to be expounded the principle and embodiment of the application, the explanation of above example is only intended to help to manage
Solve the present processes and its core concept；At the same time, for those skilled in the art, according to the thought of the application,
There will be changes in specific embodiment and application range, in conclusion the content of the present specification should not be construed as to the application
Limitation.
Claims (17)
1. a kind of helical antenna, which is characterized in that including the first spiral arm, the second spiral arm and feed port, first spiral shell
Spiral arm is extended spirally from the feed port, and second spiral arm is disposed adjacent with first spiral arm, and described second
The extending direction of spiral arm is identical as first spiral arm；First spiral arm and second spiral arm are electrically connected to institute
Feed port is stated, the electrical length of second spiral arm is different from the electrical length of first spiral arm；The antenna further includes
Third spiral arm, the third spiral arm are set to side of second spiral arm far from first spiral arm, and described
The extending direction of third spiral arm is identical as second spiral arm, has between the third spiral arm and second spiral arm
There is the first gap, generates and couple between second spiral arm and the third spiral arm.
2. helical antenna as described in claim 1, which is characterized in that first spiral arm, second spiral arm and institute
State third spiral arm constitute spiral arm group, the antenna include four identical spiral arm groups and with each spiral arm
The corresponding feed port of group, and the size of current of four feed ports is identical, phase successively differs 90 °, four institutes
It states spiral arm group and is arranged successively setting, and be enclosed space cylindrical or conical.
3. helical antenna as claimed in claim 2, which is characterized in that the feed port is used for the electromagnetism of the first frequency range of feed-in
The frequency of the electromagnetic wave signal of wave signal and the second frequency range, first frequency range is greater than second frequency range；First spiral
The resonance of first frequency range is generated on arm, and the resonance of second frequency range, first spiral shell are generated in second spiral arm
The electrical length of spiral arm is the quarter-wave of the electromagnetic wave signal of first frequency range, and the electrical length of second spiral arm is
The quarter-wave of the electromagnetic wave signal of second frequency range, so that the electrical length of first spiral arm is greater than described second
The electrical length of spiral arm.
4. helical antenna as claimed in claim 3, which is characterized in that first frequency range is 1.54GHz-1.65GHz, described
Second frequency range is 1.2GHz-1.24GHz.
5. such as the described in any item helical antennas of claim 2 to 4, which is characterized in that first spiral arm includes opposite
First end and second end, the first end are electrically connected with the feed port, and the second end is the first spiral arm spiral
The rotation angle of end far from the first end, the second end and the first end is 150 °~210 °.
6. helical antenna as claimed in claim 5, which is characterized in that the rotation angle of the second end and the first end is
180°。
7. such as helical antenna described in claim 5 or 6, which is characterized in that two opposite institutes in four spiral arm groups
The second end for stating the first spiral arm is electrically connected to each other, so that two opposite the first spiral arm short circuits.
8. helical antenna as described in claim 1, which is characterized in that the third spiral arm is electrically connected with second spiral arm
It connects.
9. helical antenna as claimed in claim 8, which is characterized in that the third spiral arm includes third end and the 4th end,
The third end is electrically connected with second spiral arm far from one end of the feed port, the 4th end ground connection.
10. helical antenna as claimed in claim 9, which is characterized in that the 4th end is also connected with tuning switch, the tune
Humorous switch is equipped with multiple tuning devices, and the tuning switch is by connecting the different tuning devices, so that the antenna has
There is different resonant states.
11. helical antenna as described in any one of claim 1 to 10, which is characterized in that offered in the third spiral arm
Second gap, the extending direction in second gap are identical as the extending direction of the third spiral arm；Alternatively, second seam
Gap makes the third spiral arm form the structure that multistage disconnects.
12. helical antenna as described in any one of claim 1 to 11, which is characterized in that the third spiral arm include it is a plurality of,
Setting is spaced in a plurality of third spiral arm between two adjacent third spiral arms.
13. helical antenna as claimed in claim 12, which is characterized in that the part third in a plurality of third spiral arm
Spiral arm is electrically connected with second spiral arm.
14. helical antenna as claimed in claim 12, which is characterized in that the part third in a plurality of third spiral arm
Spiral arm ground connection.
15. such as the described in any item helical antennas of claim 2 to 14, which is characterized in that the antenna further includes being stacked
Support column, support plate and block of wood, described block of wood is contained in the space that four spiral arm groups are enclosed, the support
For plate for being grounded, the support column is equipped with feeder line.
16. helical antenna as claimed in claim 15, which is characterized in that first spiral arm and second spiral arm are logical
It crosses laser direct structuring technique to be produced on described block of wood, the opposite dielectric of first spiral arm and second spiral arm is normal
Number is greater than 3.5.
17. a kind of communication equipment, which is characterized in that including the described in any item helical antennas of such as claim 1 to 16.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/113175 WO2020087391A1 (en) | 2018-10-31 | 2018-10-31 | Spiral antenna and communication device |
Publications (1)
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| CN110326161A true CN110326161A (en) | 2019-10-11 |
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| CN201880010528.3A Pending CN110326161A (en) | 2018-10-31 | 2018-10-31 | Helical antenna and communication equipment |
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| CN (1) | CN110326161A (en) |
| WO (1) | WO2020087391A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797637A (en) * | 2019-10-18 | 2020-02-14 | 青岛大学 | Broadband helical antenna and design method thereof |
| CN111740215A (en) * | 2020-07-28 | 2020-10-02 | 福州大学 | Miniaturized coupled multi-band spiral antenna with self-phase-shift feed |
| WO2021223118A1 (en) * | 2020-05-06 | 2021-11-11 | 华为技术有限公司 | Antenna, antenna array, and communication apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023214407A1 (en) * | 2022-05-02 | 2023-11-09 | Given Imaging Ltd. | Laser direct structuring antenna assembly for in-vivo devices |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797637A (en) * | 2019-10-18 | 2020-02-14 | 青岛大学 | Broadband helical antenna and design method thereof |
| WO2021223118A1 (en) * | 2020-05-06 | 2021-11-11 | 华为技术有限公司 | Antenna, antenna array, and communication apparatus |
| CN111740215A (en) * | 2020-07-28 | 2020-10-02 | 福州大学 | Miniaturized coupled multi-band spiral antenna with self-phase-shift feed |
| CN111740215B (en) * | 2020-07-28 | 2023-08-18 | 福州大学 | Self-phase-shift feed miniaturized coupled multi-band helical antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020087391A1 (en) | 2020-05-07 |
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