CN106170889A - Antenna and fan antenna - Google Patents
Antenna and fan antenna Download PDFInfo
- Publication number
- CN106170889A CN106170889A CN201580017952.7A CN201580017952A CN106170889A CN 106170889 A CN106170889 A CN 106170889A CN 201580017952 A CN201580017952 A CN 201580017952A CN 106170889 A CN106170889 A CN 106170889A
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- China
- Prior art keywords
- antenna
- line part
- pieces
- element portion
- curvature
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
Abstract
Antenna that there is wide band frequency characteristic, that cross-dipole structure can be applicable to, wherein: element portion 210 is as shown in element portion 210 2b, being that edge is the line part 211,212 of linearity and curve part 213 is connected and constitutes, the outward flange of (connection) part being connected with curve part 213 by line part 211 is radius of curvature R.The part being connected by line part 211 and line part 212 in element portion 210 is relative with center O, and element portion 210 2b and element portion 210 2a is configured to constitute antenna element relative to center O symmetry, receives and dispatches predetermined polarized wave.
Description
Technical field
The present invention relates to antenna and fan antenna.
Background technology
In the antenna for base station of mobile communication, by multiple to and each sector that set corresponding with the direction of radiation electric wave
The fan antenna of (region) radiation electric wave combines and uses.In fan antenna, use emissive element (antennas such as dipole antennas
Element) it is listed as the array antenna of array-like.
Having recorded a kind of antenna in patent documentation 1, it possesses at least one dipole or the antenna as dipole
Element, antenna element and its base portion are retained as not contacting with reflecting plate or substrate direct current, antenna element and its pedestal
Portion's contact or set region are configured to not have electric conductivity.
Prior art literature
Patent documentation
Patent documentation 1: No. 2004/0201537 description of U.S. Patent Application Publication No.
Summary of the invention
The problem that invention is to be solved
But, for the increase of raising/message capacity of the communication quality of fan antenna, in array antenna, use energy
Enough carry out the antenna of the cross-dipole structure of the transmitting-receiving of orthogonally polarized wave.And, in order to use in multiple frequent bands, it is desirable to
Relative bandwidth is wider.
It is an object of the invention to provide have wide band frequency characteristic, can be applicable to cross-dipole structure
Antenna etc..
Means for solving the above
Based on this purpose, being suitable for the antenna of the present invention, wherein: have a set of pieces portion, this set of pieces portion is respectively
Outward flange is that one group of line part of linearity is connected with connecting portion and constitutes；One set of pieces portion is configured to receive and dispatch predetermined
The antenna element of polarized wave, each element portion is configured at and makes line part phase each other relative to predetermined point-symmetric position
Part even relatively to；In the case of the relative bandwidth that return loss becomes below-14dB is set to more than 35%, will be freely
The wavelength in space is set to λ0, the outer peripheral radius of curvature R of the part being connected with connecting portion by line part in element portion meets
0.003λ0≤R≤0.076λ0。
It addition, be suitable for the antenna of the present invention, wherein: have a set of pieces portion, this set of pieces portion is outward flange respectively
One group of line part for linearity is connected with connecting portion and constitutes；One set of pieces portion is configured to receive and dispatch predetermined polarized wave
Antenna element, each element portion is configured at portion line part being connected with each other relative to predetermined point-symmetric position
Split-phase to；In the case of the relative bandwidth that return loss becomes below-14dB is set to more than 40%, by free space
Wavelength is set to λ0, the outer peripheral radius of curvature R of the part being connected with connecting portion by line part in element portion meets 0.028 λ0
≤R≤0.070λ0。
Further, being suitable for the antenna of the present invention, wherein: have a set of pieces portion, this set of pieces portion is outside respectively
Edge is that one group of line part of linearity is connected with connecting portion and constitutes；One set of pieces portion is configured to receive and dispatch predetermined polarization
The antenna element of ripple, each element portion is configured at and relative to predetermined point-symmetric position, line part is connected with each other
Part relatively to；In the case of the relative bandwidth that return loss becomes below-14dB is set to more than 45%, by free space
Wavelength be set to λ0, the outer peripheral radius of curvature R of the part being connected with connecting portion by line part in element portion meets 0.044
λ0≤R≤0.067λ0。
At these antenna, it is also possible to: there is another set of pieces portion, this another set of pieces portion be respectively outward flange be linearity
One group of line part be connected with connecting portion and constitute；Being also equipped with another antenna element, this another antenna element is another constituent element
The part that each element portion in part portion is connected with each other by line part relatively in the way of be configured at relative to described point-symmetric position
Put and receive and dispatch the polarized wave orthogonal with described polarized wave and constitute.
By being set in such manner, it is possible to become cross-dipole structure polarized wave share antenna.
And, one group of line part in a set of pieces portion is beaten with the outer peripheral of one group of line part in another set of pieces portion
Angle of release is less than 90 °.
By being set in such manner, it is possible in one plane configure the 1st antenna element and the 2nd antenna element.
It addition, feature can be: a set of pieces portion and another set of pieces portion, it is connected with one end and each element portion
Two groups of post portions and the base portion that connected of the other end in two groups of post portions be integrally constituted.
By being set in such manner, it is possible to make the quantity of parts less, and it is able to ensure that precision.
If understood from other viewpoints, the fan antenna being suitable for the present invention possesses: be arranged with multiple above-mentioned
Array antenna；Antenna house with storage array antenna.
According to this composition, it is possible to the fan antenna that the polarized wave with wide band frequency characteristic shares is configured to less
Type.
The effect of invention
In accordance with the invention it is possible to provide have wide band frequency characteristic, can be applicable to cross-dipole structure
Antenna etc..
Accompanying drawing explanation
Fig. 1 is the figure of all examples constituted of the antenna for base station illustrating the mobile communication being suitable for the 1st embodiment.
A () is the axonometric chart of antenna for base station, (b) is that antenna for base station arranges the figure that example illustrates.
Fig. 2 is the figure of an example of the composition illustrating the array antenna in the 1st embodiment.
Fig. 3 is the axonometric chart of the part illustrating the array antenna in the 1st embodiment.
Fig. 4 is front view and the sectional view of the part of an antenna in array antenna.A () is front view, (b) is
Sectional view on the IVB-IVB line of (a).
Fig. 5 is the figure of an example of the return loss illustrating the antenna element in array antenna.
Fig. 6 is in return loss and the antenna element illustrating 1 antenna element about the antenna element in array antenna
The two-dimensional map of the relation of the radius of curvature R in element portion.
Fig. 7 is the phase that return loss is below-14dB illustrating 1 antenna element about the antenna element in array antenna
Figure to bandwidth with the relation of the radius of curvature R in the element portion in antenna element.
Fig. 8 is the figure of an example of the radial pattern illustrating the antenna element in array antenna.
Fig. 9 is the top view of the antenna of the 2nd embodiment.
Figure 10 is the top view of the antenna of the 3rd embodiment.
Detailed description of the invention
Hereinafter, referring to the drawings embodiments of the present invention are described in detail.
[the 1st embodiment]
＜ antenna for base station 1 ＞
Fig. 1 is the figure of all examples constituted of the antenna for base station 1 illustrating the mobile communication being suitable for the 1st embodiment.
Fig. 1 (a) is the axonometric chart of antenna for base station 1, and Fig. 1 (b) is that antenna for base station 1 is arranged the figure that example illustrates.
As shown in Fig. 1 (a), antenna for base station 1 such as possesses multiple fan antenna 10-1～10-3 being held in steel tower 20
(in the case of indiscriminative, mark as fan antenna 10.).Fan antenna 10-1～10-3 possesses array antenna 11 respectively.And
And, array antenna 11 is by antenna house (radome) 12 covering for protecteding from the infringements such as wind and rain.That is, fan antenna 10-1
～the outside of 10-3 is antenna house 12, it is accommodated with array antenna 11 in the inside of antenna house 12.Here, antenna house 12 is set to circle
Tubular but it also may be other shape.Antenna for base station 1 carries out the transmitting-receiving of electric wave in the unit 2 shown in Fig. 1 (b).
It addition, as shown in Fig. 1 (a), relative to the array antenna 11 (with reference to Fig. 2 described later) in fan antenna 10-1, if
Determine xyz coordinate.
As shown in Fig. 1 (b), antenna for base station 1 carries out the transmitting-receiving of electric wave in unit 2.Unit 2 and fan antenna 10-1～
10-3 is corresponding and is divided into multiple sector 3-1～3-3 (in the case of indiscriminative, mark as sector 3).And, sector
Antenna 10-1～10-3 is set as, the direction of the main lobe 13 of the electric wave of respective array antenna 11 transmitting-receiving is towards corresponding sector 3-
1～3-3.
It addition, in FIG, antenna for base station 1 is set to possess 3 fan antenna 10-1～10-3 and corresponding with them
Sector 3-1～3-3.But, fan antenna 10 and sector 3 can also be the predetermined numbers beyond 3.It addition, at Fig. 1
B, in (), unit 2 trisection Ground Split (120 ° of central angle) is constituted by sector 3 but it also may not decile, it is also possible to will
Any 1 sector 3 is configured to wider than other sectors 3 or narrow.
Each fan antenna 10 is connected to transmit to array antenna 11 send signal and receive the transmitting-receiving cable 14-of signal
1、14-2.It addition, the transmission signal of transmitting-receiving cable 14-1,14-2 transmit that so must you orthogonal polarized wave and receive signal.
The generation that transmitting-receiving cable 14-1,14-2 are connected to be arranged in base station (not shown) sends signal and receives
The receiving and transmitting part (not shown) of signal.Transmitting-receiving cable 14-1,14-2 for example, coaxial cable.
It addition, antenna for base station 1, fan antenna 10, array antenna 11 etc., owing to the reversibility of antenna can send and connect
Receive electric wave.
Fan antenna 10 can also possess the multiple antennas (antenna of Fig. 2 described later for being possessed at array antenna 11
100-1,100-2,100-3) phase shifter that the phase place of chien shih receiving and transmitting signal is different.By the phase place at antenna chien shih receiving and transmitting signal
Different, it is possible to make the rotation angle of electric wave (beam) tilt (inclination) to direction, ground.
＜ array antenna 11 ＞
Fig. 2 is the figure of an example of the composition representing the array antenna 11 in the 1st embodiment.Fig. 2 is array antenna 11
Front view (figure on x-y face).
Array antenna 11 possesses: multiple (being 3 herein as an example) cross-dipole structure antenna 100-1～
100-3 (in the case of indiscriminative, marks as antenna 100.)；With the reflecting plate 300 being arranged with antenna 100-1～100-3.
Antenna 100-1 is by element portion 210-1a, 210-1b, 210-2a, 210-2b of the fan being respectively equipped with opening (hole)
(in the case of indiscriminative, mark as element portion 210.) constitute.Here, element portion 210-1a, 210-1b conduct is constituted
The antenna element 200-1 of dipole antenna, is constituted the sky as dipole antenna by element portion 210-2a and element portion 210-2b
Kind of thread elements 200-2.That is, antenna 100-1 is configured to 2 antenna element 200-1,200-2 as dipole antenna and (is not distinguishing
In the case of, mark as antenna element 200.) intersect (orthogonal) cross-dipole structure.
The antenna element 200-1 of antenna 100-1 is configured in x-y plane in fig. 2 to receive and dispatch incline relative to y-axis
The tiltedly polarized wave of-45 °, antenna element 200-2 is configured to receive and dispatch to tilt the polarized wave of 45 ° relative to y-axis.That is, antenna 100
Receive and dispatch the polarized wave of ± 45 °.
It addition, in transmitting-receiving along in the case of the polarized wave of x-axis and y-axis, make antenna element 200-1,200-2 around in
Heart O rotates 45 °.
Other antenna 100-2,100-3 is too.
It addition, the array antenna 11 shown in Fig. 2 possesses 3 antennas 100 but it also may possess the number beyond 3.
And, in the case of not receiving and dispatching orthogonally polarized wave, antenna 100 possesses antenna element 200-1 and antenna element
Either one in 200-2.
Fig. 3 is the axonometric chart of the part illustrating the array antenna 11 in the 1st embodiment.It addition, in figure 3 it is shown that
An antenna 100 in array antenna 11 shown in Fig. 2.
Array antenna 11 possesses post portion 220-1a, 220-1b, 220-2a, 220-2b between antenna 100 and reflecting plate 300
(in the case of indiscriminative, mark as post portion 220.), base portion 230.It is further equipped with to element portion 210-1a and element portion
Power supply board 240-1 that 210-1b powers and the power supply board 240-2 powered with element portion 210-2b to element portion 210-2a.
It addition, in figure 3, post portion 220-2a is positioned at the rear side of array antenna 11, thus not shown.
As an example, post portion 220-1a, 220-1b, 220-2a, 220-2b are formed as, with element portion 210-1a, 210-1b,
210-2a, 210-2b arrange the composition that cylinder is separated by groove accordingly.Post portion 220-1a, 220-1b, 220-2a,
The respective one end of 220-2b is connected to element portion 210-1a, 210-1b, 210-2a, 210-2b.
Base portion 230 is discoideus, and connecting in the face of a side of base portion 230 has post portion 220-1a, 220-1b, 220-
Respective the other end of 2a, 220-2b.And, reflecting plate 300 is fixed in the face of the opposing party of base portion 230.It addition, about
Post portion 220 is aftermentioned with the connection of base portion 230.
Here, as it is shown on figure 3, element portion 210-1a, 210-1b, 210-2a, 210-2b, post portion 220-1a, 220-1b,
220-2a, 220-2b, base portion 230, be integrally formed by molding etc. by the conductive metal such as aluminum, copper, and direct current connects.
It addition, element portion 210-1a, 210-1b, 210-2a, 210-2b, post portion 220-1a, 220-1b, 220-2a, 220-
2b, base portion 230 can also be individually constructed respectively, assembled by screw element etc..Alternatively, it is also possible to by post portion 220-1a,
220-1b, 220-2a, 220-2b are integrally formed with base portion 230, and by screw element etc. and the element portion 210-constituted separately
1a, 210-1b, 210-2a, 210-2b assemble.Further, it is also possible to by element portion 210-1a, 210-1b, 210-2a,
210-2b is integrally formed with post portion 220-1a, 220-1b, 220-2a, 220-2b, by screw element etc. and the base constituted separately
Portion 230 assembles.
Fig. 4 is front view and the sectional view of antenna 100 part in array antenna 11.Fig. 4 (a) is front view,
Fig. 4 (b) is the sectional view on the IVB-IVB line of Fig. 4 (a).It addition, shown in Fig. 4 (a), (b) 1 antenna 100, at Fig. 4
A () omits the token of reflecting plate 300.
As shown in Fig. 4 (a), (b), element portion 210 is that plan view shape is fan-shaped and has the portion of tabular of opening in inner side
Part.And, as shown in the element portion 210-2b of Fig. 4 (a), element portion 210 be by line part 211,212 that edge is linearity with
And the curve part 213 as an example of connecting portion is connected (connection) and constitutes, by line part 211,212 and curve part 213
The outward flange of the part being connected is provided with radius of curvature R.That is, the respective one end phase each other of line part 211 and line part 212
Connect, and the other end is connected with curve part 213.
Element portion 210-2b, the line part that part be linearity 211 adjacent with element portion 210-1a, with element portion 210-
Part adjacent for 1b is the line part 212 of linearity.
Other element portion 210-2a, 210-1a, 210-1b is constituted too.
And, element portion 210-1a and element portion 210-1b is configured to symmetrical relative to center O, by element portion 210-2a
It is configured to symmetrical relative to center O with element portion 210-2b so that the line part 211 in element portion 210 is connected with line part 212
Part relative with center O.
As shown in Fig. 4 (b), post portion 220-2a, 220-2b are disposed through base portion 230.And, through post portion 220-
The further through reflecting plate 300 of part of the base portion 230 of 2a, 220-2b and prominent to the back side of reflecting plate 300.
And, post portion 220-2b is hollow, is set to not connect with post portion 220-2b at the part power supply board 240-2 of hollow
Touch.It addition, can also be filled out by little politef etc. is lost in high-frequency region between power supply board 240-2 and post portion 220-2b
Fill.
Post portion 220-1a, 220-1b also become same composition.And, post portion 220-1b is hollow, in the portion of hollow
It is arranged with power supply board 240-1.
Power supply board 240-1,240-2 are for example, bent into the conductive metal plate of L-shaped.And, power supply board 240-2, its
The front end of bending is connected to element portion 210-2a via post portion 220-2a, and the other end of power supply board 240-2 is to reflecting plate 300
The back side is prominent and is connected to power supply circuits.
It addition, power supply board 240-1 also equally constitutes with power supply board 240-2, but be set to misplace in a z-direction so that with supply
The part that electroplax 240-2 intersects does not contacts.
As shown in Fig. 4 (a), in element portion 210, line part 211 and curve part 213 is connected the vertical view of part of (connection)
Outward flange in shape is radius of curvature R.The outward flange of line part 211 is opening angle A with the outward flange of line part 212.Straight line
Outward flange in the plan view shape of the part that portion 212 is connected with curve part 213 is also for radius of curvature R.(straight along line part 211
Line portion 212) a length of length L.And, curve part 213 is width T.Further, as shown in Fig. 4 (b), element portion 210 is thick
Degree W.Further, reflecting plate 300 to element portion 210, for height H.
These parts, such as relative to the central wavelength lambda of free space0(mid frequency f0), opening angle A is 90 °, curvature
Radius R is 0.06 λ0, the width T of curve part 213 is 0.02 λ0, length L along line part 211 (line part 212) is 0.2 λ0,
The thickness W in element portion 210 is 0.02 λ0, it is 0.25 λ from the height H of reflecting plate 300 to element portion 2100。
Thus, compared with the situation in the element portion using linearity, it is possible to reduce the size of antenna element 200.
Fig. 5 is the figure of an example of the return loss illustrating the antenna element 200 in array antenna 11.Here, it is shown that make
Return loss with this 1 element of antenna element 200 in the element portion 210 of above-mentioned numerical value.The transverse axis of Fig. 5 is by center frequency
Rate f0Frequency after standardization, the longitudinal axis is return loss (dB).
Return loss is in mid frequency f in frequency0Minimum, frequency ratio mid frequency f time neighbouring0Time low or high, echo damages
Consumption all becomes big.
Fig. 6 is the return loss and antenna element 200 about the antenna element 200 in array antenna 11, illustrating 1 element
In the two-dimensional map of relation of radius of curvature R in element portion 210.The transverse axis of Fig. 6 is for passing through central wavelength lambda0After standardization
The radius of curvature R in element portion 210, the longitudinal axis is by mid frequency f0Frequency after standardization, is divided into 7 scopes by return loss
Represented by shade.
As can be seen from Figure 6, if being such as 0.028 λ by radius of curvature R0With 0.055 λ0Compare, then echo damage
Consumption is-15dB frequency range below, is 0.055 λ in radius of curvature R0Time be 0.83f0～1.35f0, in radius of curvature R it is
0.028λ0Time be 0.83f0～1.23f0.That is, if increasing radius of curvature R, then the frequency range that return loss is little broadens.Echo
Loss changes according to the radius of curvature R in element portion 210.
And, it is known that, return loss, in frequency with 0.89f0Centered by and radius of curvature R with 0.044 λ0Centered by district
Territory, and frequency is with 1.14f0Centered by and radius of curvature R with 0.03 λ0Centered by region little.Thus, the frequency that return loss is little
Rate scope becomes W font.
Fig. 7 is to be below-14dB about the antenna element 200 in array antenna 11, the return loss that illustrates 1 element
The figure of the relation of the radius of curvature R in the element portion 210 in relative bandwidth and antenna element 200.The transverse axis of Fig. 7 is by middle cardiac wave
Long λ0The radius of curvature R in the element portion 210 after standardization, the longitudinal axis is relative bandwidth.It addition, relative bandwidth is by percent table
Show frequent band that return loss the is below-14dB value divided by this frequency gained of central authorities (center) of band again and again.It addition, echo
It is corresponding with the scope of VSWR≤1.5 that loss is voltage constant band Bob (VSWR) for below-14dB.
As it is shown in fig. 7, for relative bandwidth being set to more than 35%, as long as the radius of curvature R in element portion 210 being set as
0.003λ0≤R≤0.076λ0?.It addition, for relative bandwidth being set to more than 40%, as long as by the curvature in element portion 210 half
Footpath R is set as 0.028 λ0≤R≤0.070λ0?.Further, for relative bandwidth is set to more than 45%, as long as by element portion
The radius of curvature R of 210 is set as 0.044 λ0≤R≤0.067λ0?.
That is, the vertical view shape of the part by the line part 211 (line part 212) in element portion 210 is connected with curve part 213
(radius of curvature R) that outer peripheral shape in shape is set to have curvature and on-right angle, it is possible to widen the bandwidth that return loss is little
Degree (broadband).And, relative bandwidth depends on the line part 211 (line part 212) in element portion 210 and is connected with curve part 213
Part plan view shape in outer peripheral radius of curvature R.
If it addition, the vertical view of the part that the line part 211 (line part 212) in element portion 210 is connected with curve part 213
Outward flange in shape is set as near right angle (less than 0.003 λ0), then relative bandwidth becomes less than 35%.
Above, opening angle A between outward flange and the outward flange of line part 212 of the line part 211 in element portion 210 is set
It is 90 °, even if opening angle A is 80 °, 85 °, 100 °, is 0.06 λ in radius of curvature R0Time neighbouring, return loss also becomes
Little.It addition, antenna element 200-1 and antenna element 200-2 combination is being set in the case of polarized wave shares, opening angle A
It is preferably less than 90 °.
It addition, the width T of the curve part 213 in element portion 210 is set to 0.02 λ0, even if width T is 0.01 λ0、0.03
λ0, it is 0.06 λ in radius of curvature R0Time neighbouring, return loss also becomes minimum.
And, length L along line part 211 (line part 212) in element portion 210 is set to 0.2 λ0, even if length
L is 0.18 λ0、0.22λ0, it is 0.06 λ in radius of curvature R0Time neighbouring, return loss also becomes minimum.
Further, the thickness W in element portion 210 is set to 0.02 λ0, even if thickness W is 0.01 λ0、0.03λ0, in curvature
Radius R is 0.06 λ0Time neighbouring, return loss also becomes minimum.
Fig. 8 is the figure of an example of the radial pattern illustrating the antenna element 200 in array antenna 11.Same with shown in Fig. 2
Sample, array antenna 11 possesses 3 antennas 100.And, Fig. 8 illustrates the mid frequency f in x-z face0Time radial pattern.Electric wave
(beam) width is 68 °.
[the 2nd embodiment]
In the 1st embodiment, the plan view shape in the element portion 210 in the antenna element 200 of antenna 100 is fan-shaped.?
In 2nd embodiment, the plan view shape in element portion 210 is set to triangle.Other composition in a same manner as in the first embodiment, institute
So that explanation is omitted.
Fig. 9 is the top view of the antenna 100 of the 2nd embodiment.
In antenna 100, the element portion 210 of antenna element 200 be line part 211, line part 212, as connecting portion
The line part 214 of one example is connected and constitutes.But, line part 211 (line part 212) and line part 214 phase in element portion 210
Outward flange in the plan view shape of part even, as the element portion 210 of the 1st embodiment, becomes radius of curvature R.
Therefore, in the array antenna 11 of the 2nd embodiment, return loss also depends on radius of curvature R.And, with the 1st
Embodiment is same, by selecting radius of curvature R, it is possible to widen the little bandwidth of return loss (being set to broadband).
[the 3rd embodiment]
In the 1st embodiment, the plan view shape in the element portion 210 in the antenna element 200 of antenna 100 is fan-shaped.?
In 3rd embodiment, the plan view shape in element portion 210 is set to tetragon.Other composition in a same manner as in the first embodiment, institute
So that explanation is omitted.
Figure 10 is the top view of the antenna 100 of the 3rd embodiment.
In antenna 100, the element portion 210 of antenna element 200 be line part 211, line part 212, line part 215 and
Line part 216 is connected and constitutes.But, the vertical view shape of the part that the line part 211 in element portion 210 is connected with line part 215
Outward flange in the plan view shape of the part that outward flange in shape and line part 212 are connected with line part 216, implements with the 1st
The element portion 210 of mode is same, becomes radius of curvature R.
Therefore, in the array antenna 11 of the 3rd embodiment, return loss also depends on radius of curvature R.And, with the 1st
Embodiment is same, by selecting radius of curvature R, it is possible to widen the little bandwidth of return loss (being set to broadband).
It addition, the outward flange in the plan view shape of part that is connected with line part 216 of line part 215, it is also possible to it is than song
The radius of curvature that rate radius R is little.
In the 1st embodiment to the 3rd embodiment, the element portion 210 of antenna element 200 is set to possess opening (hole),
But can not also possess opening (hole).In this case, line part 211,212,214,215,216 renames as edge is straight line
Linearity region 211,212,214,215,216, curve part 213 renames as the curve regions 213 that edge is curve.
In the 1st embodiment to the 3rd embodiment, antenna element 200 does not possess unpowered element but it also may far
Unpowered element is possessed from the side of reflecting plate 300.
Further, in the 1st embodiment to the 3rd embodiment, as shown in Fig. 2 of the 1st embodiment, at reflecting plate
3 antennas 100 the most arranged side by side, 1 antenna 100 the most arranged side by side on 300 but it also may the most in the x direction
Individual antenna 100.
Alternatively, it is also possible to make the antenna of other frequency band mix.
Description of reference numerals
1 ... antenna for base station, 2 ... unit, 3,3-1～3-3 ... sector, 10,10-1～10-3 ... fan antenna, 11 ... array
Antenna, 12 ... antenna house, 13 ... main lobe, 14-1,14-2 ... transmitting-receiving cable, 20 ... steel tower, 100,100-1～100-3 ... antenna,
200,200-1,200-2 ... antenna element, 210,210-1a, 210-1b, 210-2a, 210-2b ... element portion, 211,212,
214,215,216 ... line part, 213 ... curve part, 220,220-1a, 220-1b, 220-2a, 220-2b ... post portion, 230 ... the end
Seat portion, 240-1,240-2 ... power supply board, 300 ... reflecting plate.
Claims (7)
1. an antenna, it is characterised in that:
There is a set of pieces portion, a described set of pieces portion be respectively outward flange be that one group of line part of linearity is connected with connecting portion
And constitute；
A described set of pieces portion is configured to receive and dispatch the antenna element of predetermined polarized wave, and each described element portion is configured at phase
For predetermined point-symmetric position make part that described line part is connected with each other relatively to；
In the case of the relative bandwidth that return loss becomes below-14dB is set to more than 35%, by the wavelength of free space
It is set to λ0, the outer peripheral radius of curvature R of the part being connected with described connecting portion by described line part in described element portion is full
Foot 0.003 λ0≤R≤0.076λ0。
2. an antenna, it is characterised in that:
There is a set of pieces portion, a described set of pieces portion be respectively outward flange be that one group of line part of linearity is connected with connecting portion
And constitute；
A described set of pieces portion is configured to receive and dispatch the antenna element of predetermined polarized wave, and each described element portion is configured at phase
For predetermined point-symmetric position make part that described line part is connected with each other relatively to；
In the case of the relative bandwidth that return loss becomes below-14dB is set to more than 40%, by the wavelength of free space
It is set to λ0, the outer peripheral radius of curvature R of the part being connected with described connecting portion by described line part in described element portion is full
Foot 0.028 λ0≤R≤0.070λ0。
3. an antenna, it is characterised in that:
There is a set of pieces portion, a described set of pieces portion be respectively outward flange be that one group of line part of linearity is connected with connecting portion
And constitute；
A described set of pieces portion is configured to receive and dispatch the antenna element of predetermined polarized wave, and each described element portion is configured at phase
For predetermined point-symmetric position make part that described line part is connected with each other relatively to；
In the case of the relative bandwidth that return loss becomes below-14dB is set to more than 45%, by the wavelength of free space
It is set to λ0, the outer peripheral radius of curvature R of the part being connected with described connecting portion by described line part in described element portion is full
Foot 0.044 λ0≤R≤0.067λ0。
Antenna the most according to any one of claim 1 to 3, it is characterised in that:
There is another set of pieces portion, another set of pieces portion described be respectively outward flange be one group of line part and the connecting portion of linearity
It is connected and constitutes；
Being also equipped with another antenna element, this another antenna element is that each described element portion in another set of pieces portion described is with described
The part that line part is connected with each other relatively to mode be configured at relative to described point-symmetric position and receive and dispatch with described polarization
Polarized wave that ripple is orthogonal and constitute.
Antenna the most according to claim 4, it is characterised in that:
One group of line part in a described set of pieces portion is beaten with the outer peripheral of one group of line part in another set of pieces portion described
Angle of release is less than 90 °.
6. according to the antenna described in claim 4 or 5, it is characterised in that:
A described set of pieces portion and another set of pieces portion described, with one end be connected to two groups of post portions in each element portion and this
The base portion that the other end in two groups of post portions is connected is integrally constituted.
7. a fan antenna, possesses:
It is arranged with the array antenna of antenna according to any one of multiple claim 1 to 6；With
Receive the antenna house of described array antenna.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014086892 | 2014-04-18 | ||
| JP2014-086892 | 2014-04-18 | ||
| PCT/JP2015/061418 WO2015159871A1 (en) | 2014-04-18 | 2015-04-14 | Antenna and sector antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106170889A true CN106170889A (en) | 2016-11-30 |
| CN106170889B CN106170889B (en) | 2019-01-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580017952.7A Active CN106170889B (en) | 2014-04-18 | 2015-04-14 | Antenna and fan antenna |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106170889B (en) |
| WO (1) | WO2015159871A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525245A (en) * | 2020-04-01 | 2020-08-11 | 温州职业技术学院 | Thing allies oneself with data centralized terminal device |
| CN111755810A (en) * | 2019-03-27 | 2020-10-09 | 北京小米移动软件有限公司 | Antenna module, terminal and manufacturing method of antenna module |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210273339A1 (en) * | 2018-09-18 | 2021-09-02 | Massachusetts Institute Of Technology | Wideband Dual-Polarized Four-Quad Loop Antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7399798A (en) * | 1997-07-03 | 1999-01-21 | Alcatel | Dual polarized cross bow tie antenna with airline feed |
| US20120098725A1 (en) * | 2010-10-22 | 2012-04-26 | Spx Corporation | Broadband Clover Leaf Dipole Panel Antenna |
| CN102484321A (en) * | 2009-09-02 | 2012-05-30 | 株式会社Kmw | Broadband dipole antenna |
| CN103326117A (en) * | 2013-06-20 | 2013-09-25 | 华南理工大学 | Broadband dual-polarization four-leaf clover plane antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4896829B2 (en) * | 2007-07-02 | 2012-03-14 | Ｄｘアンテナ株式会社 | Antenna device |
| CA2807722C (en) * | 2010-09-17 | 2016-02-16 | Research In Motion Limited | Compact radiation structure for diversity antennas |
-
2015
- 2015-04-14 CN CN201580017952.7A patent/CN106170889B/en active Active
- 2015-04-14 WO PCT/JP2015/061418 patent/WO2015159871A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7399798A (en) * | 1997-07-03 | 1999-01-21 | Alcatel | Dual polarized cross bow tie antenna with airline feed |
| CN102484321A (en) * | 2009-09-02 | 2012-05-30 | 株式会社Kmw | Broadband dipole antenna |
| US20120098725A1 (en) * | 2010-10-22 | 2012-04-26 | Spx Corporation | Broadband Clover Leaf Dipole Panel Antenna |
| CN103326117A (en) * | 2013-06-20 | 2013-09-25 | 华南理工大学 | Broadband dual-polarization four-leaf clover plane antenna |
Non-Patent Citations (3)
| Title |
|---|
| YING LIU: "A Novel Miniaturized Broadband Dual-Polarized", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
| 李棉全: "正交偶极子的极化特性分析", 《电波科学学报》 * |
| 陈辉: "一种新颖的宽频带双极化印刷偶极子基站天线", 《重庆邮电大学学报(自然科学版)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755810A (en) * | 2019-03-27 | 2020-10-09 | 北京小米移动软件有限公司 | Antenna module, terminal and manufacturing method of antenna module |
| CN111525245A (en) * | 2020-04-01 | 2020-08-11 | 温州职业技术学院 | Thing allies oneself with data centralized terminal device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015159871A1 (en) | 2015-10-22 |
| CN106170889B (en) | 2019-01-18 |
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