CN105633568B - A kind of LTCC lamination broad frequency micro-band array antennas of special feed form - Google Patents
A kind of LTCC lamination broad frequency micro-band array antennas of special feed form Download PDFInfo
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- CN105633568B CN105633568B CN201610130279.4A CN201610130279A CN105633568B CN 105633568 B CN105633568 B CN 105633568B CN 201610130279 A CN201610130279 A CN 201610130279A CN 105633568 B CN105633568 B CN 105633568B
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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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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Abstract
The invention belongs to antenna technical fields, a kind of LTCC lamination broad frequency micro-band array antennas of special feed form are provided, to overcome the shortcomings of existing micro-strip paster antenna in terms of taking into account high-gain, broadband and miniaturization.The antenna includes upper layer radiation metal patch antenna array, lower layer's radiation metal patch antenna array, upper layer medium substrate, layer dielectric substrate, welding hole, feeding network and ground metal layer, the upper layer radiation metal patch antenna array, lower metal patch antenna array are arranged to make up by upper unit metal patch, lower unit metal patch by staggered triangles respectively, the upper unit metal patch is the quadrangle rectangle with corner cut, and the corner cut is isosceles triangle；One jiao of the lower unit metal patch is connect by tilting microstrip line with feeding network.The present invention can preferably take into account micro-strip paster antenna high-gain, broadband and the performance requirement of miniaturization, and structure is simpler.
Description
Technical field
The invention belongs to antenna technical fields, and in particular to a kind of LTCC lamination broad frequency micro-band arrays of special feed form
Antenna.
Background technology
With flourishing for modern information technologies and new military revolution, future war will be towards land, sea, air, outer space, electricity five
Dimension one development.For radar as electromagnetic wave detection equipment, the effect played on future battlefield will be more and more important.Array day
Line emits as radar system and receives the component of electromagnetic wave, and the quality of performance directly affects the standard of radar detection result
True property, so for radar system, the design of array antenna is particularly important.Array antenna has diversified form,
And microstrip antenna has apparent advantage compared to other microwave antennas：It is small, light-weight, it is low section, easily conformal with carrier,
Greatest irradiation direction is easily controllable with polarization, easily integrated with active/passive device etc..The array day formed with microstrip element
Line, it is small, integrated level is high, and may be implemented to improve gain, enhancing directionality, improve radiation efficiency, reduce secondary lobe, formed
The characteristics such as shaped-beam and multi-beam.As the gradually development of correlation theory and technology is perfect, micro-strip array antenna extensive use
In fields such as radar system, communication, remote sensing.
LTCC (low-temperature co-fired ceramics) technology is a kind of advanced passive integration and hybrid circuit encapsulation technology.LTCC technology
There are many merits, can play a great role for improving radar antenna system integrated level, be adopted during LTCC technology multiple stratification
With curtain coating and through-hole technology so that it is easy to process, and layer thickness control more better than conventional base plate material can be provided, pass through
Array antenna prepared by LTCC technology combines even closer between layers, solves because the presence of air layer makes antenna sheet
The problem of mechanical strength of body reduces, thus be expected to create item to develop the micro-strip paster antenna of novel low section, wideband
Part.The lamination advantage of LTCC techniques changes the design pattern of conventional microstrip antenna, for microstrip antenna miniaturization, widebandization one
All it has been the hot spot studied both at home and abroad since straight, LTCC technology is combined with microstrip antenna to be beneficial to improve antenna performance, therefore,
LTCC technology is combined with microstrip antenna has become new research hotspot.
Invention content
It is an object of the invention to overcome existing micro-strip paster antenna in terms of taking into account high-gain, broadband and miniaturization
Deficiency, provide a kind of LTCC lamination broad frequency micro-band array antennas of special feed form, which can preferably take into account micro-
With paster antenna high-gain, broadband and the performance requirement of miniaturization, and structure is simpler.
Technical solution of the present invention is as follows：
A kind of LTCC lamination broad frequency micro-band array antennas of special feed form, including：Upper layer radiation metal paster antenna
Array (1), lower layer's radiation metal patch antenna array (2), upper layer medium substrate (3), layer dielectric substrate (4), welding hole
(5), feeding network (6) and ground metal layer (7), the ground metal layer (7) are located at the lower surface of layer dielectric substrate (4),
Lower layer's radiation metal patch antenna array (2) is respectively positioned on the upper surface of layer dielectric substrate (4), lower layer's spoke with feeding network (6)
Radioglold category patch antenna array (2) is fed by feeding network (6), and upper layer radiation metal patch antenna array (1) is located at upper layer
The upper surface of medium substrate (3)；Medium substrate (3) side opens up welding hole (5) corresponding to feeding network (6), is presented for side；Institute
It is mutual to state upper layer radiation metal patch antenna array (1), lower layer's radiation metal patch antenna array (2) and ground metal layer (7)
Parallel, the corresponding sides of three are mutually parallel；It is characterized in that, the upper layer radiation metal patch antenna array (1), lower metal
Patch antenna array (2) is arranged to make up by upper unit metal patch, lower unit metal patch by staggered triangles respectively, institute
State upper unit metal patch be quadrangle rectangle with corner cut (8), the corner cut (8) be isosceles triangle, waist a length of 0.2~
1mm；One jiao of the lower unit metal patch is connect by tilting microstrip line (11) with feeding network (6), the inclination micro-strip
Line (11) angle of inclination is 45 degree, and length is 1.7~2.5mm.
Further, the upper layer medium substrate (3), layer dielectric substrate (4) and ground metal layer (7) are rectangle.
The upper unit metal patch is correspondingly arranged with lower unit metal patch, and unit metal patch center overlaps.
The microstrip line right angle turn of the feeding network (6) uses corner cut (9), microstrip line T-type branch to use top rake
(10)。
Using LTCC ceramic materials, relative dielectric constant is for the layer dielectric substrate (4) and upper layer medium substrate (3)
2~100.
The layer dielectric substrate (4) and upper layer medium substrate (3) are formed using LTCC curtain coating ceramic diaphragm laminations, described
Feeding network (6), ground metal layer (7), upper layer radiation metal patch antenna array (1) and lower layer's radiation metal patch antenna array
Row (2) are printed in respective media substrate surface using silver paste, the LTCC lamination broad frequency micro-band arrays day of entire special feed form
Line through curtain coating, printing, lamination, punch, fill out silver, isostatic pressed and sintering process after formed.
It should be noted that：
In the present invention, the line width of the microstrip line of feeding network should be optimized according to the dielectric constant size and thickness of substrate
It adjusts, to ensure microstrip line characteristic impedance and unit metal patch matches impedances.It should ensure that each lower layer is single in feeding network
First metal patch obtains equal amplitude feed.From operation principle, inventive antenna structure uses staggered triangles array generation
For conventional rectangular array, in the case of same element number, the effective size for reducing antenna；In addition, traditional feed form
Feed placement is located at unit metal patch centre position, but by symmetry principle, and the present invention uses the LTCC of special shape feed
Lamination broad frequency micro-band array antenna, unit metal patch size are the half of conventional metals patch size, and according to substrate
Dielectric constant size and thickness carry out appropriate optimizing regulation；The feed placement of lower unit metal patch is located at metal patch simultaneously
One end, and the inclination feed microstrip line for being 45 degree by angle of inclination, such feeding classification are ensureing that microstrip antenna is original simple
A feed placement is increased on the basis of structure so that resonant frequency increases, and expands the beamwidth of antenna to a certain extent.
To sum up, the beneficial effects of the present invention are：
1) inventive antenna structure replaces conventional rectangular array using staggered triangles array, effectively saves radiation element
Number and reduce the size of antenna；2) according to symmetry principle, feed placement is changed into one end of microband paste unit, is being protected
In the case of demonstrate,proving antenna performance, microband paste size is reduced；3) it uses instead and tilts microstrip line as metal patch feed, in a disguised form increase
Feed points while ensureing simple in structure, increase resonance points, extend microstrip antenna bandwidth.In addition, this day micro USB
Divide and the advanced laminations of LTCC and layer thickness control technology is utilized, ensure that the close gapless between different laminations combines, formed
Fine and close integral structure, improves the stability and reliability of antenna.The present invention is based on organic media or pottery relative to conventional
The LTCC micro-strip array antennas of the micro-strip paster antenna of porcelain substrate and traditional feed placement can get the broader beamwidth of antenna and more
Add miniaturization.
Description of the drawings
Fig. 1 is the structure expanded schematic diagram of the LTCC lamination broad frequency micro-band array antennas of the special feed form of the present invention.
Fig. 2 is the top surface structure schematic diagram of the LTCC lamination broad frequency micro-band array antennas of the special feed form of the present invention.
Fig. 3 is lower layer's radiation metal patch knot of the LTCC lamination broad frequency micro-band array antennas of the special feed form of the present invention
Structure schematic diagram.
Fig. 4 is that the structure of the ground metal layer of the LTCC lamination broad frequency micro-band array antennas of the special feed form of the present invention is shown
It is intended to.
Fig. 5 is the LTCC laminations broad frequency micro-band array antenna working frequency and reflection loss of the special feed form of the present invention
Relationship between S11.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples, but embodiments of the present invention are unlimited
In this.
As shown in figure 5, the center of the LTCC lamination broad frequency micro-band array antennas of special feed form provided in this embodiment
Frequency point is 9.93GHz, receives and dispatches common antenna for microband paste, the present embodiment can realize that the micro-strip that impedance bandwidth is 1.71GHz is pasted
Chip antenna.
In the present embodiment, the LTCC lamination broad frequency micro-band array antennas of a kind of special feed form, structure such as Fig. 1 is extremely
Shown in Fig. 4, including：
Upper layer medium substrate 3：The substrate uses 10 thickness for 0.1mm, and the LTCC tape casting diaphragms that dielectric constant is 5.9 are folded
Piece forms, and upper surface of base plate prints upper layer radiation metal patch antenna array 1, and lower layer's feeding network is corresponded in top substrate layer right end
Rectangular window is opened at 6, size 2mm*3mm exposes one section of microstrip line, facilitates welding；
Layer dielectric substrate 4：The substrate uses 10 thickness for 0.1mm, and the LTCC tape casting diaphragms that dielectric constant is 5.9 are folded
Piece forms, and ground metal layer 7 is printed in lower surface, and lower layer's radiation metal patch antenna array 2 and feeding network are printed in upper surface
6, the line width of microstrip line ensures that microstrip line characteristic impedance is 50 ohm by optimization, and properties is made to reach requirement index；
The unit metal patch shape of upper layer radiation metal patch antenna array 1 and lower layer's radiation metal patch antenna array 2
The heart overlaps, and upper unit metal patch size is 6.9mm*4.7mm, the long 0.6mm of 8 waist of corner cut, lower unit metal patch size
For 6.4mm*4.2mm, inclination 11 size of microstrip line is the long 2.4mm of bevel edge, width 0.9mm, microstrip line 12,17 rulers in feeding network 6
Very little identical, specially 3.8mm*0.47mm, microstrip line 13,16 sizes are identical, are specially 3.5mm*0.47mm, microstrip line 14,15
Size is identical, is specially 4.6mm*0.47mm.The LTCC lamination broad frequency micro-band array antennas of above-mentioned special feed form are carried out
Test, the results are shown in Figure 5.
The above description is merely a specific embodiment, any feature disclosed in this specification, except non-specifically
Narration, can be replaced by other alternative features that are equivalent or have similar purpose；Disclosed all features or all sides
Method or in the process the step of, other than mutually exclusive feature and/or step, can be combined in any way.
Claims (6)
1. a kind of LTCC lamination broad frequency micro-band array antennas of special feed form, including：Upper layer radiation metal patch antenna array
Arrange (1), lower layer's radiation metal patch antenna array (2), upper layer medium substrate (3), layer dielectric substrate (4), welding hole (5),
Feeding network (6) and ground metal layer (7), the ground metal layer (7) are located at the lower surface of layer dielectric substrate (4), lower layer
Radiation metal patch antenna array (2) is respectively positioned on the upper surface of layer dielectric substrate (4), lower layer's radiation gold with feeding network (6)
Belong to patch antenna array (2) to feed by feeding network (6), upper layer radiation metal patch antenna array (1) is located at top dielectric
The upper surface of substrate (3)；Medium substrate (3) side opens up welding hole (5) corresponding to feeding network (6), is presented for side；On described
Layer radiation metal patch antenna array (1), lower layer's radiation metal patch antenna array (2) are mutually parallel with ground metal layer (7),
The corresponding sides of three are mutually parallel；It is characterized in that, the upper layer radiation metal patch antenna array (1), lower metal patch
Aerial array (2) is arranged to make up by upper unit metal patch, lower unit metal patch by staggered triangles respectively, it is described on
Layer unit metal patch is the quadrangle rectangle with corner cut (8), and the corner cut is isosceles triangle, a length of 0.2~1mm of waist；Institute
It states one jiao of lower unit metal patch to connect with feeding network (6) by tilting microstrip line (11), the inclination microstrip line (11)
Angle of inclination is 45 degree, and length is 1.7~2.5mm.
2. by the LTCC lamination broad frequency micro-band array antennas of special feed form described in claim 1, which is characterized in that on described
Layer medium substrate (3), layer dielectric substrate (4) and ground metal layer (7) are rectangle.
3. by the LTCC lamination broad frequency micro-band array antennas of special feed form described in claim 1, which is characterized in that on described
Layer unit metal patch is correspondingly arranged with lower unit metal patch, and unit metal patch center overlaps.
4. by the LTCC lamination broad frequency micro-band array antennas of special feed form described in claim 1, which is characterized in that the feedback
The microstrip line right angle turn of electric network (6) uses corner cut (9), microstrip line T-type branch to use top rake (10).
5. by the LTCC lamination broad frequency micro-band array antennas of special feed form described in claim 1, which is characterized in that under described
It is 2~100 that layer medium substrate (4) and upper layer medium substrate (3), which use LTCC ceramic materials, relative dielectric constant,.
6. by the LTCC lamination broad frequency micro-band array antennas of special feed form described in claim 1, which is characterized in that under described
Layer medium substrate (4) and upper layer medium substrate (3) are formed using LTCC curtain coating ceramic diaphragm laminations, and the feeding network (6) connects
Ground metal layer (7), upper layer radiation metal patch antenna array (1) and lower layer's radiation metal patch antenna array (2) use silver paste
Be printed in respective media substrate surface, the LTCC lamination broad frequency micro-band array antennas of entire special feed form through curtain coating, printing,
Lamination, punch, fill out silver, isostatic pressed and sintering process after formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130279.4A CN105633568B (en) | 2016-03-08 | 2016-03-08 | A kind of LTCC lamination broad frequency micro-band array antennas of special feed form |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130279.4A CN105633568B (en) | 2016-03-08 | 2016-03-08 | A kind of LTCC lamination broad frequency micro-band array antennas of special feed form |
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| CN105633568A CN105633568A (en) | 2016-06-01 |
| CN105633568B true CN105633568B (en) | 2018-07-27 |
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| CN106646868B (en) * | 2017-01-18 | 2022-07-22 | 河南师范大学 | Near-field optical antenna with uniformly enhanced magnetic field |
| CN109390663A (en) * | 2017-08-08 | 2019-02-26 | 京信通信系统（中国）有限公司 | A kind of micro-strip radiating element and its antenna |
| CN107768842B (en) * | 2017-09-14 | 2023-10-17 | 深圳市信维通信股份有限公司 | Antenna unit and array antenna for 5G mobile communication |
| CN108539401B (en) * | 2018-03-08 | 2020-07-21 | 电子科技大学 | L TCC double-layer single-feed circularly polarized microstrip patch array antenna unit |
| CN109687122A (en) * | 2018-11-27 | 2019-04-26 | 重庆秦嵩科技有限公司 | A kind of broadband low minor lobe array antenna |
| CN110167245B (en) * | 2019-05-24 | 2021-07-20 | 南京邮电大学 | Plasma density measurement sensor based on LTCC antenna |
| CN112864606B (en) * | 2019-11-12 | 2022-10-18 | 比亚迪股份有限公司 | Antenna component and vehicle |
| CN111710994B (en) * | 2020-06-17 | 2021-09-28 | 北京邮电大学 | Thin 5G and next generation mobile terminal oriented broadband millimeter wave antenna array |
| CN113555678A (en) * | 2021-06-21 | 2021-10-26 | 中国科学院重庆绿色智能技术研究院 | Solar cell circularly polarized transparent satellite antenna based on transparent conductive film |
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| CN103887614A (en) * | 2014-03-24 | 2014-06-25 | 电子科技大学 | Laminated high-gain circular polarization micro-strip array antenna based on LTCC |
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