CN108879090A - Half cylindrical cavity miniature antenna of half module substrate integrated wave guide - Google Patents
Half cylindrical cavity miniature antenna of half module substrate integrated wave guide Download PDFInfo
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- CN108879090A CN108879090A CN201810572637.6A CN201810572637A CN108879090A CN 108879090 A CN108879090 A CN 108879090A CN 201810572637 A CN201810572637 A CN 201810572637A CN 108879090 A CN108879090 A CN 108879090A
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- cylindrical cavity
- wave guide
- module substrate
- substrate integrated
- integrated wave
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
Present invention discloses half cylindrical cavity miniature antennas of half module substrate integrated wave guide, including dielectric substrate, top layer metallic layer and bottom metal layer；Co-planar waveguide transformational structure and two rectangular channels are provided on top layer metallic layer；It is provided with half-circle area on dielectric substrate, and offers multiple plated-through holes along semicircle camber line, and forms half cylindrical cavity of half module substrate integrated wave guide E type between plated-through hole, dielectric substrate, top layer metallic layer, bottom metal layer and two rectangular channels；A microstrip line is additionally provided on dielectric substrate, and microstrip line is connected by co-planar waveguide transformational structure with half cylindrical cavity of half module substrate integrated wave guide E type.Design structure of the present invention is simple, and working frequency points are low, and the introducing of rectangular channel is more suitably applied to modern microwave millimeter wave electronically small antenna field; meanwhile it being provided with half module substrate integrated wave guide semicircle resonant cavity in the present invention, it is compact-sized; difficulty of processing reduces, low manufacture cost, and performance is stablized.
Description
Technical field
The present invention relates to a kind of miniature antennas more particularly to a kind of half cylindrical cavity of half module substrate integrated wave guide to minimize day
Line belongs to microwave technical field.
Background technique
Antenna is the important component in wireless communication system, and the quality of itself performance seriously affects communication system
Performance indicator.Traditional rectangular metal waveguide antenna, high gain, main lobe are narrow, loss is small, but bulky, and structure is complicated, difficult
To realize Planar integration.With the rapid development of modern technologies, wireless communication technique is to miniaturization, high-performance and highly integrated
Direction is developed, to develop substrate integration wave-guide.
Due to the easily fabricated feature of substrate integration wave-guide, substrate integration wave-guide resonant cavity can be made into arbitrary shape, often at present
That sees has the shapes such as rectangle, circle, triangle, and different shapes is suitable for different environment, and has different requirements.However
The resonance characteristic of resonant cavity causes this slot antenna that can not possess very wide bandwidth of operation, so how to further decrease half
Mould substrate integration wave-guide cavity antenna size becomes a highly important job.
Currently, the research of circular cavity is the most deep, half cylindrical cavity antenna of half module substrate integrated wave guide is a kind of emerging antenna
Form, it is in addition to small in size with half module substrate integrated wave guide, light-weight design feature, the circuit spy that loss is low, Q value is high
Point and it is at low cost, be easy to existing planar microwave circuit integrate manufacture characteristic other than, while also have high-performance, power
The inherent characteristics that capacity height, thermal stability height and stabilized structure etc. follow from traditional metal waveguide.Therefore, half module is minimized
The base application research of substrate integration wave-guide antenna, for realizing the passive device of modern microwave millimeter wave of high-performance, high integration
Part and active circuit not only there is important theoretical value also to have practical meaning in engineering.
In conclusion a kind of half cylindrical cavity miniature antenna of half module substrate integrated wave guide how is provided, with regard to those skilled in the art
Member's urgent problem to be solved.
Summary of the invention
The half module substrate integrated wave guide semicircle chamber antenna structure of present invention combination microstrip structure, overcomes conventional wave seam guide
Gap antenna stereochemical structure is big, it is difficult to integrated feature, microwave is integrated, has important application value in miniaturized circuit.
The technical solution of the invention is as follows：
Half cylindrical cavity miniature antenna of half module substrate integrated wave guide, including dielectric substrate, the top mutually touched with dielectric substrate upper surface
Layer metal layer and the bottom metal layer mutually touched with dielectric substrate lower surface；Co-planar waveguide is provided on the top layer metallic layer
Transformational structure and two rectangular channels；It is provided with half-circle area on the dielectric substrate, and offers multiple metals along semicircle camber line
Change through-hole, and forms half module base between plated-through hole, dielectric substrate, top layer metallic layer, bottom metal layer and two rectangular channels
Half cylindrical cavity of piece integrated waveguide E type；A microstrip line is additionally provided on the dielectric substrate, and microstrip line passes through co-planar waveguide Change-over knot
Structure is connected with half cylindrical cavity of half module substrate integrated wave guide E type.
Preferably, two rectangular channels are disposed in parallel in the side of the top layer metallic layer.
Preferably, the working frequency of half cylindrical cavity of half module substrate integrated wave guide E type is with two rectangular channels described
The size of position and two rectangular channels on top layer metallic layer matches.
Preferably, the co-planar waveguide transformational structure is provided with center conduction band, and center conduction band is located at the top layer metallic layer
The other side.
Preferably, the microstrip line is connected with the center conduction band, and the center of two rectangular channels is to microstrip line
Place straight line is equidistant.
Preferably, the semicircle camber line includes the first semicircle camber line, opening and the second semicircle camber line, and opening is located at the first half
Between circular arc line and the second semicircle camber line, and the first semicircle camber line and the second semicircle camber line are symmetrical about opening.
Preferably, multiple plated-through holes are provided on the first semicircle camber line and the second semicircle camber line.
Preferably, multiple plated-through hole equidistant arrangements, and the quantity of plated-through hole and the first semicircle camber line or
The arc length of second semicircle camber line is corresponding.
Preferably, the medium substrate is 5880 dielectric-slab of Rogers.
The present invention provides a kind of half cylindrical cavity miniature antennas of half module substrate integrated wave guide, have the following technical effects：
Design structure of the present invention is simple, and working frequency points are low, and it is small that the introducing of rectangular channel is more suitably applied to modern microwave millimeter wave electricity
Field of antenna, meanwhile, it is provided with half cylindrical cavity of half module substrate integrated wave guide E type in the present invention, compact-sized, difficulty of processing reduces,
Low manufacture cost, and performance is stablized, relative to current half module substrate integrated wave guide semicircle chamber antenna, which has lower
Working frequency.
Just attached drawing in conjunction with the embodiments below, the embodiment of the present invention is described in further detail, so that of the invention
Technical solution is more readily understood, grasps.
Detailed description of the invention
Fig. 1 is three dimensional structure diagram of the invention；
Fig. 2 is three-dimensional dividing figure of the invention；
Fig. 3 is top view of the invention；
Fig. 4 is Surface current distribution top view in the present invention；
Fig. 5 is S parameter emulation and measured result comparison diagram in the present invention；
Fig. 6 is the present invention in the main polarization and cross-polarized measured drawing in the face E of 7.55GHz and the face H.
Wherein, 1- dielectric substrate, 2- top layer metallic layer, 3- bottom metal layer, 4- rectangular channel, 5- opening, 6- gold
Categoryization through-hole, the center 7- conduction band, 8- the first semicircle camber line, 9- the second semicircle camber line.
Specific embodiment
Half cylindrical cavity miniature antenna of half module substrate integrated wave guide, as shown in Figure 1-3, include dielectric substrate 1 and dielectric substrate
The top layer metallic layer 2 that 1 upper surface mutually touches and the bottom metal layer 3 mutually touched with 1 lower surface of dielectric substrate, and underlying metal
Layer 3 is consistent with the size of dielectric substrate 1.
Wherein, co-planar waveguide transformational structure and two rectangular channels 4 are provided on the top layer metallic layer 2；Two squares
Shape slot 4 is disposed in parallel in the side of the top layer metallic layer 2, and co-planar waveguide transformational structure is provided with center conduction band 7, center conduction band
7 are located at the other side of top layer metallic layer 2.
In addition, in the inventive solutions, dielectric substrate 1 is 5880 dielectric-slab of Rogers, dielectric constant 2.2,
With a thickness of 0.5 millimeter.It is provided with half-circle area on dielectric substrate 1, and offers multiple plated-through holes 6 along semicircle camber line, gold
Half-module chip is formed between categoryization through-hole 6, dielectric substrate 1, top layer metallic layer 2, bottom metal layer 3 and two rectangular channels 4
Half cylindrical cavity of integrated waveguide E type, and the position of the working frequency of half cylindrical cavity of half module substrate integrated wave guide E type and two rectangular channels 4
It sets and the size of two rectangular channels 4 matches, specifically, the size of rectangular channel 4 and two rectangular channels 4 are in top layer
Position on metal layer 2 determines the working frequency of half cylindrical cavity of half module substrate integrated wave guide E type.The introducing of rectangular channel 4, so that half
Half cylindrical cavity antenna of mould substrate integrated waveguide E type keeps higher antenna gain, manufacture craft under the premise of reducing antenna size
Simply, low in cost, while can reach the purpose for reducing working frequency points, and change half cylindrical cavity of half module substrate integrated wave guide E type
The surface current of antenna flows to, to generate the operating mode for being lower than resonance point, and finally realizes the effect for reducing antenna size.
Semicircle camber line in the present invention includes the first semicircle camber line 8, opening 5 and the second semicircle camber line 9, and opening 5 is located at
Between first semicircle camber line 8 and the second semicircle camber line 9, and the first semicircle camber line 8 and the second semicircle camber line 9 are symmetrical about opening 5,
And first is provided with multiple plated-through holes 6 on semicircle camber line 8 and the second semicircle camber line 9, be open the not set gold in 5 positions
Categoryization through-hole 6.Multiple 6 equidistant arrangements of the plated-through hole, and the quantity of plated-through hole 6 and the first semicircle camber line 8 or the
The arc length of two semicircle camber lines 9 is related, i.e. the first semicircle camber line 8 or the second semicircle camber line 9 are longer, and the quantity of plated-through hole 6 is got over
It is more.
In the inventive solutions, it is additionally provided with a microstrip line on dielectric substrate 1, and microstrip line passes through co-planar waveguide
Transformational structure is connected with half cylindrical cavity of half module substrate integrated wave guide E type, and microstrip line is connected with center conduction band 7, and as half module
The input of half cylindrical cavity miniature antenna of substrate integrated waveguide E type, and the center of two rectangular channels 4 to straight line where microstrip line away from
From equal.
The present invention is also emulated and has been surveyed to the return loss of half cylindrical cavity miniature antenna of half module substrate integrated waveguide E type
Examination, as shown in Figure 5.Fig. 4 is Surface current distribution top view of the invention.It follows that bandwidth of operation of the invention is
7.51GHz ~ 7.59GHz, centre frequency 7.55GHz, relative bandwidth 1%.The return loss of input port is greater than 10dB.Fig. 6
For the main polarization and cross polarization test result in the face E of the invention and the face H, from the figure we can see that half-module chip integrates wave
The maximum gain for leading half cylindrical cavity miniature antenna of E type is 4.6dB, and front and back is compared greater than 15dB, and cross polarization is respectively less than -15dB.
A kind of half cylindrical cavity miniature antenna of half module substrate integrated wave guide E type disclosed by the invention is integrated in half-module chip
The surface of waveguide semicircle chamber etched two rectangular channels, and entire semicircle is made to look like a letter " E ", which changes
Become the flow direction of radiation current, and worked in the frequency point lower than resonance frequency, reduces working frequency.The present invention can be realized smoothly
The electronically small antenna of half module substrate integrated wave guide E type semicircle chamber, while considerable gain is realized, half relative to equivalent technology
Mould substrate integration wave-guide semicircle chamber antenna not only has certain radiation efficiency, and possesses front and back ratio well and intersect
Polarization.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and this
Field technical staff can be designed alternative embodiment without departing from the scope of the appended claims.
Claims (9)
1. half cylindrical cavity miniature antenna of half module substrate integrated wave guide, it is characterised in that：Including table on dielectric substrate and dielectric substrate
The top layer metallic layer that face mutually touches and the bottom metal layer mutually touched with dielectric substrate lower surface；It is set on the top layer metallic layer
It is equipped with co-planar waveguide transformational structure and two rectangular channels；It is provided with half-circle area on the dielectric substrate, and is opened along semicircle camber line
Equipped with multiple plated-through holes, and plated-through hole, dielectric substrate, top layer metallic layer, bottom metal layer and two rectangular channels it
Between formed half cylindrical cavity of half module substrate integrated wave guide E type；A microstrip line is additionally provided on the dielectric substrate, and microstrip line passes through altogether
Surface wave leads transformational structure and is connected with half cylindrical cavity of half module substrate integrated wave guide E type.
2. half cylindrical cavity miniature antenna of half module substrate integrated wave guide according to claim 1, it is characterised in that：Described in two
Rectangular channel is disposed in parallel in the side of the top layer metallic layer.
3. half cylindrical cavity miniature antenna of half module substrate integrated wave guide according to claim 2, it is characterised in that：The half module
Position on the top layer metallic layer of the working frequency of half cylindrical cavity of substrate integrated waveguide E type and two rectangular channels and
The size of two rectangular channels matches.
4. half cylindrical cavity miniature antenna of half module substrate integrated wave guide according to claim 2, it is characterised in that：It is described coplanar
Waveguide transitions structure setting has center conduction band, and center conduction band is located at the other side of the top layer metallic layer.
5. half cylindrical cavity miniature antenna of half module substrate integrated wave guide according to claim 4, it is characterised in that：The micro-strip
Line is connected with the center conduction band, and the center of two rectangular channels being equidistant to straight line where microstrip line.
6. half cylindrical cavity miniature antenna of half module substrate integrated wave guide according to claim 1, it is characterised in that：The semicircle
Camber line includes the first semicircle camber line, opening and the second semicircle camber line, opening be located at the first semicircle camber line and the second semicircle camber line it
Between, and the first semicircle camber line and the second semicircle camber line are symmetrical about opening.
7. half cylindrical cavity miniature antenna of half module substrate integrated wave guide according to claim 6, it is characterised in that：Described first
Multiple plated-through holes are provided on semicircle camber line and the second semicircle camber line.
8. half cylindrical cavity miniature antenna of half module substrate integrated wave guide according to claim 7, it is characterised in that：It is multiple described
Plated-through hole equidistant arrangement, and the quantity of plated-through hole is opposite with the arc length of the first semicircle camber line or the second semicircle camber line
It answers.
9. half cylindrical cavity miniature antenna of half module substrate integrated wave guide according to claim 1, it is characterised in that：The medium
Substrate is 5880 dielectric-slab of Rogers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572637.6A CN108879090A (en) | 2018-06-06 | 2018-06-06 | Half cylindrical cavity miniature antenna of half module substrate integrated wave guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572637.6A CN108879090A (en) | 2018-06-06 | 2018-06-06 | Half cylindrical cavity miniature antenna of half module substrate integrated wave guide |
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| CN108879090A true CN108879090A (en) | 2018-11-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190403A (en) * | 2019-05-07 | 2019-08-30 | 南京邮电大学 | High-gain half module substrate integrated wave guide semicircle chamber electronically small antenna |
| CN111129720A (en) * | 2020-01-13 | 2020-05-08 | 华南理工大学 | Wearable fabric antenna based on substrate integrated waveguide |
| CN112563724A (en) * | 2020-12-04 | 2021-03-26 | 西安电子科技大学 | Low-profile half-mode substrate integrated waveguide filter antenna with high frequency selectivity |
| CN114725686A (en) * | 2022-05-17 | 2022-07-08 | 安徽大学 | Log-periodic antenna based on half-mode rectangular metal waveguide excitation |
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2018
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190403A (en) * | 2019-05-07 | 2019-08-30 | 南京邮电大学 | High-gain half module substrate integrated wave guide semicircle chamber electronically small antenna |
| CN111129720A (en) * | 2020-01-13 | 2020-05-08 | 华南理工大学 | Wearable fabric antenna based on substrate integrated waveguide |
| CN112563724A (en) * | 2020-12-04 | 2021-03-26 | 西安电子科技大学 | Low-profile half-mode substrate integrated waveguide filter antenna with high frequency selectivity |
| CN114725686A (en) * | 2022-05-17 | 2022-07-08 | 安徽大学 | Log-periodic antenna based on half-mode rectangular metal waveguide excitation |
| CN114725686B (en) * | 2022-05-17 | 2024-03-12 | 安徽大学 | Logarithmic periodic antenna based on half-module rectangular metal waveguide excitation |
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Application publication date: 20181123 |