CN106207430A - A kind of novel LTCC broadband circularly polarization microstrip patch array antenna - Google Patents
A kind of novel LTCC broadband circularly polarization microstrip patch array antenna Download PDFInfo
- Publication number
- CN106207430A CN106207430A CN201610584929.2A CN201610584929A CN106207430A CN 106207430 A CN106207430 A CN 106207430A CN 201610584929 A CN201610584929 A CN 201610584929A CN 106207430 A CN106207430 A CN 106207430A
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- antenna
- metal
- lower metal
- upper strata
- patch
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
-
- 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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
Abstract
The invention belongs to antenna technical field, be specifically related to a kind of novel LTCC broadband circularly polarization microstrip patch array antenna, for overcoming existing circularly polarization microstrip patch array antenna deficiency in terms of taking into account its low section, circular polarisation, high-gain and broadband.This antenna includes the ground metal layer stacked gradually from the bottom up, layer dielectric substrate, lower metal paster antenna, upper layer medium substrate, upper strata metal patch antenna, on, lower metal paster antenna respectively by several be arranged in array upper, lower metal chip unit is constituted, on, lower metal chip unit uses adding corner cut square-shaped metal paster and all offering rectangular recess at corner cut of same size, four limits of upper strata metal patch unit all offer rectangular aperture, other three limits except feed one side of lower metal chip unit also offer rectangular aperture.The present invention can identical array element number limit under smaller, gain is higher, circular polarisation performance is more preferable, frequency bandwidth is wider.
Description
Technical field
The invention belongs to antenna technical field, be specifically related to a kind of novel LTCC broadband circularly polarization microstrip patch array sky
Line.
Background technology
Micro-strip array antenna is launched as radar system and receives the parts of electromagnetic wave, the quality of its performance, directly affects
The accuracy of radar detection result, so for radar system, the design of array antenna is particularly important.Array antenna phase
Ratio has higher gain, narrower wave beam, stronger directionality and spatial beams scan characteristic in array radiation unit.And justify
Poliarizing antenna has rotation direction orthogonality；Can receive the incoming wave that arbitrarily polarizes, its radiated wave also can be received by any poliarizing antenna；Entelechy
Change ripple and incide the advantages such as symmetric targets, echo derotation.Thus circularly polarization microstrip patch array antenna not only has above two
The advantage of kind of antenna, the most also has that micro-strip paster antenna section is low, simple in construction, volume are little, lightweight, makes easily, becomes
This is the cheapest, can conformal with carrier or aircraft, be easily achieved circular polarization characteristics and be readily integrated into microstrip circuit when medium
Advantage.These advantages make it obtain extensively in fields such as radio communication, airborne communication, satellite fix, long-range remote sensing, Aero-Space
General application.
But the input impedance of micro-strip paster antenna is the most sensitive with the change of frequency, cause its impedance bandwidth the narrowest；Mesh
The method of front common broadening micro-strip paster antenna includes increasing substrate thickness, using multiple structure, additional impedance coupling etc., but
These are not only bad for the miniaturization of antenna, also make antenna structure more complicated.Additionally, realizing micro-strip paster antenna circular polarisation
Aspect, common are at present and uses the method feeding more and carrying out paster corner cut, but the former adds the complexity of antenna structure,
Making the gain reduction of antenna, the latter is higher to the dimension precision requirement of paster corner cut.Circularly polarization microstrip patch array antenna is taken into account
Its low section, circular polarisation, high-gain, wide band contradiction are not well solved all the time.And LTCC (LTCC skill
Art) as a kind of multi-layer ceramics technology, have employed curtain coating and through hole technology during its multiple stratification so that easy to process, and
Can provide more more preferable layer thickness control than conventional base plate material, the structure of microstrip antenna one-dimensional be extended to three-dimensional by traditional, changes
Become the design pattern of conventional microstrip antenna, can play a great role for improving radar antenna system integrated level；Meanwhile, LTCC
The dielectric constant of material can change between 2～20000, adapts in different operating frequencies.Therefore, LTCC technology and micro-strip
Antenna combines the study hotspot having become new.
Summary of the invention
It is an object of the invention to overcome existing circularly polarization microstrip patch array antenna take into account its low section, circular polarisation,
Deficiency in terms of high-gain and broadband, it is provided that a kind of novel wide-band circularly polarization microstrip patch array based on LTCC technology
Antenna, this antenna can not only preferably take into account the low section of micro-strip paster antenna, circular polarisation, the performance requirement of high-gain, same
Time also substantially increase the band bandwidth of antenna.
For achieving the above object, the technical solution used in the present invention is:
A kind of novel LTCC broadband circularly polarization microstrip patch array antenna, including the ground connection gold stacked gradually from the bottom up
Belong to layer 3, layer dielectric substrate 2, lower metal paster antenna 8, upper layer medium substrate 1, upper strata metal patch antenna 4, described under
Layer metal patch antenna 8 is fed by feeding network 5, and feed port 7 is arranged at layer dielectric substrate 8 side, and feeding network 5 leads to
Cross feed port 7 and be connected side feedback with ground metal layer 3, described upper layer medium substrate offers window 6 corresponding to feed port 7；
The upper strata metal patch that described upper strata metal patch antenna 4 and lower metal paster antenna 8 are arranged in array by several respectively
Unit and lower metal chip unit are constituted, and upper strata metal patch unit and lower metal chip unit are correspondingly arranged and use
The diagonal angle of same size adds corner cut rectangular metal paster, it is characterised in that described upper strata metal patch unit pastes with lower metal
All offering rectangular recess at the corner cut of blade unit, four limits of described upper strata metal patch unit all offer rectangular aperture, institute
Other three limits except feed one side stating lower metal chip unit also offer rectangular aperture.
Further, each rectangular aperture chi described upper strata metal patch unit and lower metal chip unit offered
Very little identical.
Described feeding network 5 is connected with lower metal paster antenna 8, and feeding network uses quarter-wave transforming section 15
It is connected with feed port 7, uses quarter-wave transforming section 9 to be connected with lower metal chip unit, the most all adopt
Connect with the i.e. sweeping elbow 14,16 of quadrant ring, adopt top rake ladder 11 in the strip line junction that width is different and connect.
Described feeding network, upper strata metal patch antenna, lower metal paster antenna and metal ground plane all use silver slurry
It is printed in respective media substrate surface；Described broadband circularly polarization microstrip patch array antenna is through being cast, punch, print, folding
Layer, isostatic pressed, cut and sinter aftershaping.
Illustrate further:
1, upper strata metal patch antenna and lower metal paster antenna use the arrangement of metal patch cell array, vertical between array element
The vacuum wavelength that horizontal spacing is intended at than 1/2nd mid frequencyes is slightly larger, the metal patch cell distance medium substrate of edge
The distance of corresponding edge be greater than the vacuum wavelength at 1/4 mid frequency.
2, the diagonal angle of the metal patch unit of upper strata metal patch antenna and lower metal paster antenna is opened rectangular recess and is
Control the principal element of antenna circular polarisation, suitably regulation metal radiation chip unit and the size of rectangular recess, it is ensured that single-point is presented
The metal radiation paster of electricity produces the phase contrast that two equal orthogonal degenerate mode shapes of amplitude are in 90 °；Meanwhile, lower metal paster
Unit uses the asymmetric rectangular aperture of offering in three limits, and upper strata metal patch unit uses every limit symmetry to offer rectangular aperture, is formed
Perturbation, is greatly increased the frequency bandwidth of antenna, and is ensureing that mid frequency is greatly reduced metal radiation patch in the case of constant
The size of sheet.
3, the live width of the feeding network on layer dielectric substrate to be carried out according to the dielectric constant size of substrate and thickness
Suitably regulation, is 50 ohm to guarantee the impedance of the 1/4 wavelength conversion section being connected with feed port, with lower metal chip unit
The impedance of the strip line connected is 100 ohm.
4, the relative dielectric constant scope of layer dielectric substrate and upper layer medium substrate used LTCC ceramic material be 2～
100。
The present invention compared with prior art, has the advantage that and beneficial effect: 1) this antenna employing SF single feed, structure letter
Single, easy to process, utilize and add corner cut square-shaped metal paster and open the form of rectangular recess and realize circular polarisation, effectively promote circular polarisation
Performance, and circular polarisation property regulation is simple and convenient；2) use metal patch unit every limit, upper strata symmetry offer rectangular aperture,
The asymmetric form offering rectangular aperture in the lower metal chip unit three limits in addition to feed base, utilizes asymmetric gap perturbation
Method makes the frequency bandwidth of antenna be greatly improved, and little in the condition of same centre frequency, can reduce the chi of metal patch
Very little, the most also make the axle ratio of antenna be optimized, bandwidth obtains a certain degree of broadening；3) at the converting interface that strip line is different
Use different discontinuity compensating forms, make the energy reflection of transmission line reduce, thus improve the entire gain of antenna；4)
The window offered corresponding to feed port in upper layer medium substrate, not only facilitates welding between metal probe with transmission line, and
And do not affect the circular polarisation that antenna is overall, the size also by adjusting grooves window regulates the overall performance of antenna simultaneously,
Thus increase the overall frequency bandwidth of antenna；5) this antenna takes full advantage of the advantage of LTCC technology, enters between different laminations
The tight gapless of row combines, thus realizes the conformal design of whole antenna, and makes antenna size reduce, performance boost.To sum up, originally
Invention can smaller under identical array element number limits, gain is higher, circular polarisation performance is more preferable, and frequency bandwidth is the most more
Width, and simple in construction be prone to processing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention novel LTCC broadband circularly polarization microstrip patch array antenna, and wherein, 1 is
Upper layer medium substrate, 2 be layer dielectric substrate, 3 for ground metal layer, 4 for upper strata metal patch antenna, 5 for feeding network, 6
For window, 7 be feed port.
Fig. 2 is the upper strata metal patch antenna structure of the present invention novel LTCC broadband circularly polarization microstrip patch array antenna
Schematic diagram.
Fig. 3 is the lower metal patch-antenna structure of the present invention novel LTCC broadband circularly polarization microstrip patch array antenna
Schematic diagram.
Fig. 4 is the ground metal layer structural representation of the present invention novel LTCC broadband circularly polarization microstrip patch array antenna
Figure.
Fig. 5 is operating frequency and the reflection loss of the present invention novel LTCC broadband circularly polarization microstrip patch array antenna
The graph of relation of S11.
Fig. 6 is the angle relation curve with gain of the present invention novel LTCC broadband circularly polarization microstrip patch array antenna
Figure.
Fig. 7 is the angle relation curve with axle ratio of the present invention novel LTCC broadband circularly polarization microstrip patch array antenna
Figure.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings, but the invention is not limited in this.
The present embodiment provides a kind of novel LTCC broadband circularly polarization microstrip patch array antenna, and its structure is as shown in Figure 1 to Figure 4
Shown in, the center frequency point of this antenna is 10GHz, and its performance test results is as shown in Fig. 5, Fig. 6, Fig. 7, and this antenna can be
In the sectional thickness of 2.1mm, it is achieved impedance bandwidth reaches 1.68GHz, gain is up to 12.02dB, and the axle ratio of antenna can
As little as 1.7dB.
Above-mentioned novel LTCC broadband circularly polarization microstrip patch array antenna, including following structure:
Upper layer medium substrate (1): this substrate uses 12 thickness to be 0.1mm, and dielectric constant is the LTCC tape casting diaphragm of 5.9
Being overrided to form, substrate lateral dimension is 44mm, and longitudinal size is 44mm；Upper surface of base plate uses silver slurry to be printed with 2 × 2 unit
The upper strata metal patch unit of the same size of number, metal patch cell distance substrate the right and left 10.2mm, apart from upper and lower two
Limit 10.05mm, the horizontal spacing between metal patch unit is 19mm, and longitudinal pitch is 19mm；The size of metal patch unit
For 4.9mm × 4.6mm, the diagonal angle of metal patch unit opens rectangular recess to realize circular polarisation, rectangular recess a length of
1.2mm, a width of 0.6mm, have a length of 0.6mm, the rectangular aperture of a width of 0.17mm in radiation patch on every limit；Substrate is right
Side has long 1.5mm, the window (6) of wide 2mm corresponding to the surface of feed port, exposes feed port, thus convenient to it
Weld；
Layer dielectric substrate (2): this substrate uses 9 thickness to be 0.1mm, and dielectric constant is the LTCC tape casting diaphragm of 5.9
Being overrided to form, substrate size is identical with upper layer medium substrate (1)；Upper surface of base plate uses silver slurry to be printed with 2 × 2 unit
The lower metal chip unit (8) of the same size of number and feeding network (5)；The size of lower metal chip unit and upper strata gold
Belong to chip unit identical, but it is three limits is asymmetric offers rectangular aperture except other of feed base, its rectangular aperture
A length of 0.6mm, a width of 0.17mm, lower metal chip unit is arranged with upper strata metal patch unit upper and lower corresponding；Feeding network
(5) through optimization, the live width of the microstrip line in guarantees that microstrip line characteristic impedance is 50 ohm, and make properties reach requirement
Index, wherein the size 3mm × 0.45mm of strip line (9), sweeping elbow (16) be radius be the quarter circular arc of 2.5mm,
The size of strip line (10) is 1mm × 1mm, and the upper end of ribbon feeder (11) is 1mm, goes to the bottom as 0.7mm, a height of 0.8mm, banding
The size of line (13) is 1mm × 1.6mm, sweeping elbow (14) be radius be the quarter circular arc of 1.5mm, microstrip line (15) is wide
Degree makes its port Impedance be 50 ohm through optimization；
Ground metal layer (3): ground metal layer (3) is positioned at the lower surface of lower floor's ltcc substrate (2), passes through feed port
(7) it is connected with the microstrip line (15) on the upper surface of layer dielectric substrate (2).
The above, the only detailed description of the invention of the present invention, any feature disclosed in this specification, unless especially
Narration, all can be by other equivalences or have the alternative features of similar purpose and replaced；Disclosed all features or all sides
Method or during step, in addition to mutually exclusive feature and/or step, all can be combined in any way.
Claims (4)
1. a novel LTCC broadband circularly polarization microstrip patch array antenna, including the grounded metal stacked gradually from the bottom up
Layer (3), layer dielectric substrate (2), lower metal paster antenna (8), upper layer medium substrate (1), upper strata metal patch antenna
(4), described lower metal paster antenna (8) is fed by feeding network (5), and feed port (7) is arranged at layer dielectric substrate
(8) side, feeding network (5) is connected side by feed port (7) and presents, in described upper layer medium substrate with ground metal layer (3)
Window (6) is offered corresponding to feed port (7)；Described upper strata metal patch antenna (4) and lower metal paster antenna (8) are respectively
The upper strata metal patch unit being arranged in array by several and lower metal chip unit are constituted, upper strata metal patch unit with
Lower metal chip unit is correspondingly arranged and uses the diagonal angle of same size to add corner cut rectangular metal paster, it is characterised in that institute
State upper strata metal patch unit and all offer rectangular recess, described upper strata metal patch at the corner cut of lower metal chip unit
Four limits of unit all offer rectangular aperture, and other three limits except feed of described lower metal chip unit also offer
Rectangular aperture.
2. the broadband of LTCC as described in claim 1 circularly polarization microstrip patch array antenna, it is characterised in that described upper strata metal
The each rectangular aperture offered on chip unit and lower metal chip unit is equivalently-sized.
3. the broadband of LTCC as described in claim 1 circularly polarization microstrip patch array antenna, it is characterised in that described feeding network
Being connected with lower metal paster antenna, feeding network uses quarter-wave transforming section to be connected with feed port, uses four points
One of wavelength conversion section be connected with lower metal chip unit, the most all use the i.e. sweeping elbow of quadrant ring even
Connect, adopt top rake ladder in the strip line junction that width is different and connect.
4. the broadband of LTCC as described in claim 1 circularly polarization microstrip patch array antenna, it is characterised in that described transmission network
Network, upper strata metal patch antenna, lower metal paster antenna and metal ground plane all use silver slurry to be printed in respective media substrate
Surface；Described broadband circularly polarization microstrip patch array antenna through being cast, punch, print, lamination, isostatic pressed, cut and burn
Knot aftershaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584929.2A CN106207430B (en) | 2016-07-22 | 2016-07-22 | A kind of novel LTCC broadband circularly polarization microstrip patch array antenna |
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|---|---|---|---|
| CN201610584929.2A CN106207430B (en) | 2016-07-22 | 2016-07-22 | A kind of novel LTCC broadband circularly polarization microstrip patch array antenna |
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| CN106207430A true CN106207430A (en) | 2016-12-07 |
| CN106207430B CN106207430B (en) | 2019-04-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816718A (en) * | 2017-01-20 | 2017-06-09 | 电子科技大学 | A kind of Sidelobe sharp cut-off flat-topped beam antenna for base station and method for designing |
| CN108832280A (en) * | 2018-06-08 | 2018-11-16 | 西安电子科技大学 | A kind of millimeter wave omnidirectional circular-polarized antenna can be used for 5G communication |
| WO2019114740A1 (en) * | 2017-12-15 | 2019-06-20 | 华为技术有限公司 | Antenna unit and 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 |
| CN113937502A (en) * | 2021-09-11 | 2022-01-14 | 中国人民武装警察部队工程大学 | Stable-gain broadband slot circularly polarized antenna and wireless communication system |
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| CN104167826A (en) * | 2014-07-07 | 2014-11-26 | 浙江大学 | Linear polarized incident electromagnetic wave perfect reception wireless energy flat |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816718A (en) * | 2017-01-20 | 2017-06-09 | 电子科技大学 | A kind of Sidelobe sharp cut-off flat-topped beam antenna for base station and method for designing |
| WO2019114740A1 (en) * | 2017-12-15 | 2019-06-20 | 华为技术有限公司 | Antenna unit and antenna array |
| US11322858B2 (en) | 2017-12-15 | 2022-05-03 | Huawei Technologies Co., Ltd. | Antenna unit and antenna array |
| CN108832280A (en) * | 2018-06-08 | 2018-11-16 | 西安电子科技大学 | A kind of millimeter wave omnidirectional circular-polarized antenna can be used for 5G communication |
| CN108832280B (en) * | 2018-06-08 | 2019-10-25 | 西安电子科技大学 | A kind of millimeter wave omnidirectional circular-polarized antenna can be used for 5G communication |
| 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 |
| CN113937502A (en) * | 2021-09-11 | 2022-01-14 | 中国人民武装警察部队工程大学 | Stable-gain broadband slot circularly polarized antenna and wireless communication system |
| CN113937502B (en) * | 2021-09-11 | 2023-07-25 | 中国人民武装警察部队工程大学 | Broadband slot circularly polarized antenna with stable gain and wireless communication system |
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