CN206194958U - Miniaturized broadband omnidirectional antenna - Google Patents
Miniaturized broadband omnidirectional antenna Download PDFInfo
- Publication number
- CN206194958U CN206194958U CN201621267229.2U CN201621267229U CN206194958U CN 206194958 U CN206194958 U CN 206194958U CN 201621267229 U CN201621267229 U CN 201621267229U CN 206194958 U CN206194958 U CN 206194958U
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- paster
- omnidirectional antenna
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- metal
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Abstract
The utility model discloses a miniaturized broadband omnidirectional antenna, including dielectric plate (1), metal grounding plate (2) and metal microstrip feeder (3), the positive and negative in dielectric plate (1) is printed respectively in metal grounding plate (2) and metal microstrip feeder (3), metal microstrip feeder (3) include by last under to end -to -end connection's circular patch (4), cell type paster (5), trapezoidal paster (6) and rectangle paster (7) and form the lollipop form in proper order, metal grounding plate (2) include by last under to in proper order end -to -end connection first rectangle paster (8), semiellipse paster (9) and second rectangle paster (10) and form the bottle form, the base of second rectangle paster (10) and the base of rectangle paster (7) all with the base parallel and level of dielectric plate (1). The utility model provides a pair of miniaturized broadband omnidirectional antenna has realized omnidirectional antenna's miniaturization, low section, broadband, the characteristics that the feed is simple.
Description
Technical field
The utility model is related to a kind of minimized wide-band omnidirectional antenna, belongs to antenna technical field.
Background technology
Omnidirectional antenna refers to realize 360 ° of homogeneous radiations in the horizontal plane, and the omnidirectional antenna of high-gain can improve signal covering
Scope, is widely used in the fields such as radio and television, satellite communication, mobile communication, radar sensor networks.Broad-band antenna can be answered
For different communications bands, so as to reduce the number of antennas of equipment, equipment size is reduced.Therefore, omni-directional high-gain broadband day
The research of line has very strong realistic meaning and construction value.
With the high speed development of wireless communication technology, in the multiclass system such as communication base station, omnidirectional antenna has obtained more next
More it is widely applied, omnidirectional antenna performance requirement is also increasingly improved, such as requires that the band of omnidirectional antenna is wide, small volume, non-round
Spend small, radiation main lobe direction stabilization of low, high gain, secondary lobe etc..Microstrip antenna has advantage easy to process and cheap, into
It is the new trend of Design of Omnidirectional Antenna.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of miniaturization, low section, broadband, feed simply
Wideband omnidirectional antenna, the Antenna Operation in C frequency ranges, with good impedance matching property, impedance bandwidth of the standing-wave ratio less than 2
It is 4.2GHz, the antenna gain at center frequency point 5.4GHz is up to 3.55dB, and with good horizontal omnidirectional radiation characteristic, entirely
It is 3.7dB to the directional diagram out-of-roundness of radiating surface.Can be widely applied to radio and television, satellite communication, mobile communication, radar sensing
The fields such as device network.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of minimized wide-band omnidirectional antenna, including dielectric-slab, metal ground plate and metal micro-strip feeder line, the metal connect
Floor and metal micro-strip feeder line are respectively printed at the positive and negative of dielectric-slab, and the metal micro-strip feeder line includes first successively from top to bottom
The circular patch of tail connection, groove profile paster, trapezoidal paster and rectangular patch simultaneously form lollipop shape；The metal ground plate includes
The first rectangular patch of head and the tail connection, semiellipse type paster and the second rectangular patch and bottle shape is formed successively from top to bottom, institute
State the second rectangular patch base and rectangular patch base of the base with the dielectric-slab it is concordant, the metal micro-strip feeder line
Length more than the metal ground plate length.
The metal ground plate and metal micro-strip feeder line are left and right to being centrally located.
The dielectric-slab length L is 30mm, and dielectric-slab width W is 30mm, and medium plate thickness is 0.813mm.
The material of the metal ground plate and metal micro-strip feeder line is copper sheet.
The copper sheet thickness is 36um.
The diameter D of the circular patch is 12mm；The groove profile paster is rectangular channel paster, the side of the rectangular channel paster
Width of frame d is 0.7mm, and interior width of frame W2 is 3.4mm, and housing length L3 is 2mm；Bottom i is 1.1mm on trapezoidal paster, and go to the bottom W1
It is 1.75mm, L2 high is 9.8mm；The length L1 of rectangular patch is 3.4mm, and the width W1 of rectangular patch is 1.75mm.
The length L6 of the metal ground plate is 13mm, and width is 30mm；The length L5 of the first rectangular patch be 2.5mm,
Width W3 is 16mm；The major axis of semiellipse type paster is 30mm, and the ratio between short axle and major axis are 0.45；The length of the second rectangular patch
L4 is 5mm, width is 30mm.
Rogers 4003C substrate of the minimized wide-band omnidirectional antenna in 30mm × 30mm × 0.813mm（That is Rogers
High frequency plate）Upper realization, total is simple, easy to make, low cost.HFSS electromagnetic simulation softwares pair have been used in design process
The standing-wave ratio of omnidirectional antenna, gain and out-of-roundness ratio are emulated, and each electricity is determined after optimizing by some row electromagnetic parameters
The size of magnetic parameter.Then, the drafting of the PCB domains of the antenna is carried out using Altium Designer softwares, and processes reality
Thing.Finally, standing-wave ratio is tested using Aglient E8361-000009 types vector network analyzer, day is measured in microwave dark room
The directional diagram of line, so as to obtain the directional diagram out-of-roundness of gain and omnidirectional radiation face at centre frequency.Result shows：By imitative
Fine setting after accurately matching and material object are processed when really designing, impedance bandwidth of the omnidirectional antenna standing-wave ratio less than 2 is 4.2GHz,
Antenna gain at center frequency point 5.4GHz is up to 3.55dB, and the directional diagram out-of-roundness in omnidirectional radiation face is 3.7dB.
The characteristics of for miniaturization, low section, broadband, the simple feed of realizing omnidirectional antenna, the utility model proposes
A kind of minimized wide-band omnidirectional antenna, and omnidirectional antenna to proposing optimizes design, in kind processes.Test result table
It is bright：In C frequency ranges, with good impedance matching property, impedance bandwidth of the standing-wave ratio less than 2 is 4.2GHz to the Antenna Operation, in
Antenna gain at heart frequency 5.4GHz is up to 3.55dB, and with good horizontal omnidirectional radiation characteristic, omnidirectional radiation face
Directional diagram out-of-roundness is 3.7dB.Can be widely applied to the neck such as radio and television, satellite communication, mobile communication, radar sensor networks
Domain.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the utility model standing-wave ratio simulation result schematic diagram；
Fig. 4 is the utility model Direction Pattern Simulation result schematic diagram；
Fig. 5 is the utility model standing-wave ratio measured result schematic diagram；
Fig. 6 is the utility model directional diagram measured result schematic diagram.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ Fig. 2, a kind of minimized wide-band omnidirectional antenna is a kind of medium substrate printed on both sides antenna, mainly by
Dielectric-slab 1, metal ground plate 2 and the part of metal micro-strip feeder line 3 three composition.Metal ground plate 2 and metal micro-strip feeder line 3 print respectively
System is in the both sides of dielectric-slab 1.Positive metal micro-strip feeder line 3 is pasted by circular patch 4, rectangular patch 7, trapezoidal paster 6 and groove profile
Piece 5 is constituted, and the metal ground plate 2 at the back side is main by the first rectangular patch 8, the second rectangular patch 10 and the structure of semiellipse type paster 9
Into.
The length L of dielectric-slab 1 is 30mm, and the width W of dielectric-slab 1 is 30mm, and the thickness of dielectric-slab 1 is 0.813mm, metal ground plate
2 and the copper sheet thickness of metal micro-strip feeder line 3 be 36um.
In metal micro-strip feeder line 3, the diameter D of circular patch 4 is 12mm, and the length L1 of rectangular patch 7 is 3.4mm, square
The width W1 of shape paster 7 is 1.75mm；Bottom i is 1.1mm to trapezoidal paster 6 thereon, and bottom W1 is 1.75mm, and L2 high is 9.8mm；Groove
The border width d of type paster 5 is 0.7mm, and inside casing length W2 is 3.4mm, and outer width of frame L3 is 2mm.
In metal ground plate 2, the length L6 of metal ground plate 2 is 13mm, and width is 30mm；First rectangular patch 8
Length L5 is that 2.5mm, width W3 are 16mm, and the length L4 of the second rectangular patch 10 is 5mm, width is 30mm, semiellipse type patch
The major axis of piece 9 is 30mm, and the ratio between short axle and major axis are 0.45.
According to the design requirement of the beamwidth of antenna, standing wave, gain and out-of-roundness, micro-strip is presented based on HFSS electromagnetic simulation softwares
Line length, transition of mechanical impedance section, each parameter of rectangular patch and circular patch and groove profile paster optimize design, finally determine whole
Individual antenna structure.
As shown in figure 3, the standing-wave ratio based on HFSS electromagnetic simulation softwares to the omnidirectional antenna in 3-8GHz is emulated, by
Standing-wave ratio simulation result schematic diagram understands that 3.4-7.45GHz frequency ranges standing internal wave ratio is less than 2, then impedance of the standing-wave ratio less than 2
Bandwidth BW=(5.4-3.4) × 2=4GHz.
As shown in figure 4, the omnidirectional radiation face of the omnidirectional antenna is xoz faces, based on HFSS electromagnetic simulation softwares to the omnidirectional
Antenna is emulated in the directional diagram of 5.4GHz, and from Direction Pattern Simulation result schematic diagram, in omnidirectional radiation face, center is frequently
Maximum radiated power at point 5.4GHz frequencies is 3.74dBm, and lowest radiating power is 0.44dBm, then the antenna is in 5.4GHz
Gain G ain=3.74dB, the out-of-roundness YD=3.74-0.44=3.3dB of directional diagram.
As shown in figure 5, after the completion of the design of plane omnidirectional antenna and emulation, by the plane omnidirectional antenna in 30mm × 30mm
Processed on the Rogers 4003C substrates of × 0.813mm and realized.Radiofrequency signal is exported by a sub-miniature A connector for standard.Use
Vector network analyzer is measured to the standing-wave ratio of antenna, and measured result shows：The standing-wave ratio in the range of 3.30-7.60GHz
Less than 2, then bandwidth BW=(5.4-3.3) × 2=4.2GHz that standing-wave ratio is less than 2, measured result coincide substantially with simulation result.
As shown in fig. 6, measuring directional diagram of the antenna in the xoz faces of omnidirectional radiation face in microwave dark room.By directional diagram reality
Survey result schematic diagram to understand, in omnidirectional radiation face, the maximum radiated power at center frequency point 5.4GHz frequencies is 3.55dBm,
Lowest radiating power is -0.15dBm, then gain G ain=3.55dB, the out-of-roundness YD=of directional diagram of the antenna in 5.4GHz
3.55-(-0.15)=3.7dB.Due to being unable to reach the machining accuracy of 0.01mm, so measured result slightly has with respect to simulation result
Difference, but measured result coincide substantially with simulation result.
The above is only preferred embodiment of the present utility model, it should be pointed out that：For the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of minimized wide-band omnidirectional antenna, it is characterised in that including dielectric-slab（1）, metal ground plate（2）And metal micro-strip
Feeder line（3）, the metal ground plate（2）With metal micro-strip feeder line（3）It is respectively printed at dielectric-slab（1）Positive and negative, the gold
Category microstrip feed line（3）Including the circular patch that head and the tail are connected successively from top to bottom（4）, groove profile paster（5）, trapezoidal paster（6）With
Rectangular patch（7）And form lollipop shape；The metal ground plate（2）Including the first rectangle that head and the tail are connected successively from top to bottom
Paster（8）, semiellipse type paster（9）With the second rectangular patch（10）And form bottle shape, second rectangular patch（10）'s
Base and rectangular patch（7）Base with the dielectric-slab（1）Base it is concordant, the metal micro-strip feeder line（3）Length
More than the metal ground plate（2）Length.
2. a kind of minimized wide-band omnidirectional antenna according to claim 1, it is characterised in that：The metal ground plate（2）
With metal micro-strip feeder line（3）Left and right is to being centrally located.
3. a kind of minimized wide-band omnidirectional antenna according to claim 1, it is characterised in that：The dielectric-slab（1）Length L
It is 30mm, dielectric-slab（1）Width W is 30mm, dielectric-slab（1）Thickness is 0.813mm.
4. a kind of minimized wide-band omnidirectional antenna according to claim 1, it is characterised in that：The metal ground plate（2）
With metal micro-strip feeder line（3）Material be copper sheet.
5. a kind of minimized wide-band omnidirectional antenna according to claim 4, it is characterised in that：The copper sheet thickness is
36um。
6. a kind of minimized wide-band omnidirectional antenna according to claim 1, it is characterised in that：The circular patch（4）'s
Diameter D is 12mm；The groove profile paster（5）It is rectangular channel paster, the border width d of the rectangular channel paster is 0.7mm, inside casing
Width W2 is 3.4mm, and housing length L3 is 2mm；Trapezoidal paster（6）Upper bottom i is 1.1mm, and bottom W1 is 1.75mm, and L2 high is
9.8mm；Rectangular patch（7）Length L1 be 3.4mm, rectangular patch（7）Width W1 be 1.75mm.
7. a kind of minimized wide-band omnidirectional antenna according to claim 1, it is characterised in that：The metal ground plate（2）
Length L6 be 13mm, width is 30mm；First rectangular patch（8）Length L5 for 2.5mm, width W3 be 16mm；Semiellipse
Type paster（9）Major axis be 30mm, the ratio between short axle and major axis are 0.45；Second rectangular patch（10）Length L4 be 5mm, width
It is 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267229.2U CN206194958U (en) | 2016-11-22 | 2016-11-22 | Miniaturized broadband omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267229.2U CN206194958U (en) | 2016-11-22 | 2016-11-22 | Miniaturized broadband omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206194958U true CN206194958U (en) | 2017-05-24 |
Family
ID=58724741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621267229.2U Expired - Fee Related CN206194958U (en) | 2016-11-22 | 2016-11-22 | Miniaturized broadband omnidirectional antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206194958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004348A (en) * | 2018-08-14 | 2018-12-14 | 中国计量大学 | Wireless access network multiband antenna |
-
2016
- 2016-11-22 CN CN201621267229.2U patent/CN206194958U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004348A (en) * | 2018-08-14 | 2018-12-14 | 中国计量大学 | Wireless access network multiband antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20181122 |