CN103872459B - The double-deck single feedback circularly polarization microstrip patch array antenna of a kind of novel LTCC - Google Patents
The double-deck single feedback circularly polarization microstrip patch array antenna of a kind of novel LTCC Download PDFInfo
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- CN103872459B CN103872459B CN201410109290.3A CN201410109290A CN103872459B CN 103872459 B CN103872459 B CN 103872459B CN 201410109290 A CN201410109290 A CN 201410109290A CN 103872459 B CN103872459 B CN 103872459B
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Abstract
The object of the present invention is to provide a kind of bilayer list feedback circularly polarization microstrip patch array antenna based on LTCC technology, comprise upper and lower layer ltcc substrate, feeding network, upper and lower layer radiation metal patch antenna array, metal probe, feed port and ground metal layer, wherein, lower floor's radiation metal patch antenna array and feeding network are located at the upper surface of lower floor's ltcc substrate, and upper strata radiation metal patch antenna array is positioned at the upper surface of upper strata ltcc substrate; Described upper and lower layer radiation metal patch antenna array shape, measure-alike, each aerial array is made up of four subarrays, each subarray is made up of four radiation metal pasters, and wherein each radiation metal paster is to add on the square of corner cut, one group of opposite side and offers rectangular aperture. This antenna has been taken into account the performance requirement of micro-strip paster antenna low section, circular polarisation, high-gain better, greatly improves the band bandwidth of antenna simultaneously.
Description
Technical field
The invention belongs to antenna technical field, be specifically related to the double-deck single feedback circularly polarization microstrip patch array antenna of a kind of novel LTCC.
Background technology
Circular polarized antenna has rotation direction orthogonality; Can receive any polarization incoming wave, its radiated wave also can be received by any poliarizing antenna;The advantages such as circularly polarised wave incides symmetrical target, back wave derotation. Array antenna has higher increasing than array radiating elementBenefit, narrower wave beam, stronger directionality and spatial beams scan characteristic. And circularly polarization microstrip patch array antenna not only hasThe advantage of above two kinds of antennas, also have that micro-strip paster antenna section is low, simple in structure, volume is little simultaneously, lightweight, makeEasily, with low cost, can be conformal with carrier or aircraft, be easy to realize circular polarization characteristics and be easy to be integrated into microstrip circuitWhen medium advantage. These advantages make it in fields such as radio communication, airborne communication, satellite fix, long-range remote sensing, Aero-SpaceBe widely used.
Circularly polarization microstrip patch array antenna has larger practical application potentiality because of its numerous advantage, but micro-strip paster antennaBe similar in fact the resonator system of sealing, this feature makes its frequency band narrow, and modern communications requires it to have wider frequencyBand bandwidth. The method of at present common broadening micro-strip paster antenna comprises increase substrate thickness, adopts sandwich construction, additional impedanceCoupling etc., but these are not only bad for the miniaturization of antenna, also make antenna structure more complicated. In addition, realizing microband pasteAntenna circular polarisation aspect, common are at present the method that adopts many feeds and carry out paster corner cut, but the former has increased antenna structureComplexity, make antenna gain reduce, the latter is higher to the dimension precision requirement of paster corner cut. Circularly polarization microstrip patch arrayThe contradiction that antenna is taken into account its low section, circular polarisation, high-gain, broadband development is not well solved all the time.
Summary of the invention
The object of the present invention is to provide a kind of bilayer list feedback circularly polarization microstrip patch array antenna based on LTCC technology, this skyLine has been taken into account the performance requirement of micro-strip paster antenna low section, circular polarisation, high-gain better, greatly improves the frequency of antenna simultaneouslyBand bandwidth. Solve existing circularly polarization microstrip patch array antenna and taken into account its low section, circular polarisation, high-gain, broadband developmentContradiction. Technical scheme of the present invention is:
The double-deck single feedback circularly polarization microstrip patch array antenna of a kind of LTCC, comprises upper strata ltcc substrate 1, lower floor's ltcc substrate2, upper strata radiation metal patch antenna array 4, feeding network 6, lower floor's radiation metal patch antenna array 7, metal probe 11,Feed port 12 and ground metal layer 3, wherein, ground metal layer 3 is positioned at the lower surface of lower floor's ltcc substrate 2, lower floor's spokeRadioglold belongs to patch antenna array 7 and feeding network 6 is located at the upper surface of lower floor's ltcc substrate 2, radiation metal paster sky, upper strataLinear array 4 is positioned at the upper surface of upper strata ltcc substrate 1, and feed port 12 is opened in relevant position on lower floor's ltcc substrate 2And by metal probe 11 be connected with feeding network 6, metal probe 11 and ground metal layer 3 insulate mutually; It is characterized in that,Described upper strata radiation metal patch antenna array 4 and lower floor's radiation metal patch antenna array 7 shapes, measure-alike, with ground connectionMetal level 3 is arranged in parallel, and each aerial array is made up of four subarrays, and each subarray is by four radiation metal pastersForm, wherein each radiation metal paster is to add on the square of corner cut, one group of opposite side and offers rectangular aperture 9.
Further, described feeding network 6 adopts quarter-wave transforming section to be connected with metal probe 11, on the corner adoptsScan elbow 8 with quadrant ring and connect, adopt top rake ladder 15 to connect in the different strip line junction of width, at TType elbow adopts top rake 13.
On described upper strata ltcc substrate 1, also have circular window at feed port 12 correspondence positions, to expose metal probe 11;Described ground metal layer 3 is offered and the circular window of feed port 12 same radius at feed port 12 correspondence positions, to exposeFeed port 12.
Further, in described upper and lower layer radiation metal patch antenna array between radiation metal paster in length and breadth spacing be greater than 1/2The vacuum wavelength at centre frequency place, the corresponding edge distance of the radiation metal paster distance L TCC substrate of edge is greater than 1/4The vacuum wavelength at centre frequency place.
In described upper and lower layer radiation metal patch antenna array, radiation metal paster corner cut size will make single-point feedback square patch produceTwo orthogonal degenerate mode shape phase differences in 90 ° that raw amplitude equates.
The strip line live width of described feeding network 6 is determined by dielectric constant size and the thickness of ltcc substrate, to guarantee and metalThe impedance of the 1/4 wavelength conversion section that probe 11 connects is 50 ohm, and in array, the impedance of strip line 17 is 75 ohm, submatrixIn row, the impedance of strip line 18 is 100 ohm.
The size of described upper and lower layer radiation metal patch antenna array and the thickness relationship of upper and lower layer ltcc substrate should makeLower floor's radiation metal patch antenna array 7 resonance are in presenting circularly polarization microstrip patch array antenna center lower than the double-deck list of whole LTCCThe frequency of frequency, makes upper strata radiation metal patch antenna array 4 resonance in presenting circularly polarization microstrip patch battle array higher than the double-deck list of LTCCThe frequency of array antenna centre frequency.
The relative dielectric constant of the LTCC ceramic material that described upper and lower layer ltcc substrate adopts is between 2～200.
Described feeding network, upper and lower layer radiation metal patch antenna array and ground metal layer all adopt silver slurry to be printed in correspondingLtcc substrate surface; The double-deck single feedback circularly polarization microstrip patch array antenna of whole LTCC through curtain coating, punching, printing, lamination,Deng static pressure, cutting and sintering aftershaping.
It should be noted that, in the present invention, the radiation metal paster corner cut size of upper and lower layer radiation metal patch antenna array is controlThe principal element of antenna circular polarisation processed, two equal orthogonal degenerate modes of amplitude that its size will make single-point feedback square patch produceThe phase difference that shape is in 90 °; On one group of opposite side of radiation metal paster, offer rectangular aperture, can by the length and width that regulate rectangular apertureIncrease the impedance bandwidth of antenna. Feeding network scans elbow 8 at its right angle turn employing quadrant ring and connects,Adopt top rake ladder 15 to connect in different live width switchings place, adopt top rake 13 in T-shaped elbow, these three kinds of methods are all rightThe discontinuity of strip transmission line is carried out effective compensation. The width of the quarter-wave transforming section being connected with metal probe in addition,Slightly larger than the diameter of metal probe, be beneficial to the welding of metal probe and quarter-wave transforming section; At upper strata LTCC baseThe circular window of offering on plate does not only affect the circular polarization characteristics of antenna, also helps the gain that improves whole antenna.
Advantage of the present invention and beneficial effect are as follows:
1. one of main feature of this antenna is to adopt SF single feed, utilizes square patch to cut diagonal angle to realize the form of circular polarisation, therebyMake it simple in structure, facilitate its processing.
2. adopt the form of opening rectangular aperture at metal radiation paster opposite side, utilize gap perturbation method that the frequency bandwidth of antenna is obtainedGreatly promote, also make the axial ratio of antenna be optimized simultaneously, greatly reduce the requirement on machining accuracy to paster corner cut.
3. adopt different discontinuity compensating forms at the different converting interface place of strip line, the energy reflection of transmission line reduced,Thereby improve the entire gain of antenna.
4. the window of opening on the ltcc substrate of upper strata adopts circular form, not only facilitates the weldering between metal probe and transmission lineConnect, and do not affect the circular polarisation of antenna entirety, also increased the overall frequency bandwidth of antenna simultaneously.
5. this antenna takes full advantage of the advantage of LTCC technology, to carrying out tight gapless combination between different laminations, makes its shapeBecome fine and close integral structure, not only improved the machining accuracy of antenna, its stability and reliability are promoted greatly,Also make antenna entirety be easier to carry out integrated with the T/R Control Component of antenna rear end simultaneously.
To sum up, the present invention is the Section of Microstrip Antenna Array based on organic media or ceramic substrate with respect to routine, not only in identical battle arrayThe lower size of unit's number restriction is less, gain is higher, circular polarisation performance is better, and its frequency bandwidth is also wider, in addition, and antennaStructure also make its be easier to processing.
Brief description of the drawings
Fig. 1 is that the structure of the double-deck single feedback circularly polarization microstrip patch array antenna of LTCC of the present invention is launched schematic diagram.
Fig. 2 is the double-deck single circularly polarization microstrip patch array antenna lower floor radiation metal patch antenna array array structure of presenting of LTCC of the present inventionSchematic diagram.
Fig. 3 is the double-deck single feedback of LTCC of the present invention circularly polarization microstrip patch array antenna upper strata radiation metal patch antenna array array structureSchematic diagram.
Fig. 4 is the double-deck single feedback circularly polarization microstrip patch array antenna radiation metal patch antenna array 2X2 of lower floor of LTCC of the present inventionSubarray structural representation.
Fig. 5 is the double-deck single feedback circularly polarization microstrip patch array antenna ground metal layer upward view of LTCC of the present invention.
Fig. 6 is between the double-deck single feedback circularly polarization microstrip patch array antenna operating frequency of LTCC of the present invention and reflection loss S11Relation curve.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
The center frequency point of the Section of Microstrip Antenna Array that the present embodiment provides is 10GHz, and as shown in Figure 6, the present invention can be at 2mmSectional thickness in, realize impedance bandwidth and reach 1.5GHz, the maximum Section of Microstrip Antenna Array that exceedes 16.7dB of gain, andThe axial ratio of antenna can be less than 1.5dB.
The double-deck SF single feed circularly polarization microstrip patch of a kind of LTCC array antenna that the present embodiment provides, comprising:
Upper strata ltcc substrate 1: it is 0.1mm that this substrate adopts 10 thickness, the LTCC tape casting diaphragm that dielectric constant is 5.9Be overrided to form, substrate lateral dimension is 74.2mm, and longitudinal size is 76.3mm. Upper surface of base plate adopts silver slurry to be printed with 4X4The radiation metal paster of the same size of individual unit number, forms upper strata radiation metal patch antenna array, and radiation metal paster is apart from basePlate the right and left 8mm, the upper and lower both sides 9.4mm of distance, the horizontal spacing between radiation metal paster is 17.8mm, longitudinally betweenDistance is 17.4mm. On the diagonal angle of radiation metal paster, carry out corner cut to realize circular polarisation, corner cut is the isosceles of length of side 1.2mmRight angled triangle, on opposite side, having long is 0.6mm, wide is the rectangular aperture 9 of 0.2mm. Have near centre at substrateA circular window 5 that radius is 2.5mm, to expose metal probe 11 and 1/4 wavelength conversion section 10, thereby conveniently enters itRow welding.
Lower floor's ltcc substrate 2: it is 0.1mm that this substrate adopts 10 thickness, the LTCC tape casting diaphragm that dielectric constant is 5.9Be overrided to form, substrate size is identical with top substrate layer 1. Upper surface of base plate adopts silver slurry to be printed with the same of 4X4 unit numberThe radiation metal paster of size and feeding network 6. Structure, size and the upper strata radiation of lower floor's radiation metal patch antenna array 7Metal patch aerial array 4 is identical, and its position on lower laminar substrate and upper strata radiation metal patch antenna array 4 are upperPosition on laminar substrate is identical. The length of strip line 14 and 10 is 1/4 times of Propagation wavelength, becomes with 1/4 wavelengthWhat the section of changing 14 was connected scans 1/4 annulus that elbow 8 is half path length 2.7mm, not with sweeping that 1/4 wavelength conversion section 14 is connectedPlunder elbow 8 and be 1/4 annulus of half path length 2mm. 1/4 wavelength conversion section 14 is positioned at lower floor's radiation metal paster 7 not before corner cutGeometric center position, base, when the strip transmission line of other different size connects, the geometric center of its fillet overlaps, band shapeTransmission line 17 is identical with the distance of strip line or radiation patch and radiation patch to adjacent metal radiation patch. Cut at T connector placeAngle 13 is isosceles triangle. Have near centre position the through hole that a radius is 0.65mm at substrate, the distance of center circle of through holeBoth sides up and down from 1/4 wavelength conversion section 10 are identical, are 0.95mm apart from the right, and through hole is for inserting metal probe 11. FeedbackThe width of electric network 6 guarantees that through optimizing the impedance of its 1/4 wavelength conversion section 10 is 50 ohm, and the impedance of strip line 17 is 75Ohm, the impedance of 1/4 wavelength conversion section 14 is 100 ohm.
Ground metal layer 3: ground metal layer 3 is positioned at the lower surface of lower floor's ltcc substrate 2, is being equipped with one near interpositionRadius is the circular hole 16 of 2mm. Circular window 5 on circular hole 16, metal probe 11 and upper strata ltcc substrate 1, three'sGeometric center is positioned on same Z axis.
Claims (7)
1. the double-deck single feedback circularly polarization microstrip patch array antenna of LTCC, comprises upper strata ltcc substrate (1), the LTCC of lower floorSubstrate (2), upper strata radiation metal patch antenna array (4), feeding network (6), lower floor's radiation metal patch antenna array (7),Metal probe (11), feed port (12) and ground metal layer (3), wherein, ground metal layer (3) is positioned at the LTCC of lower floorThe lower surface of substrate (2), lower floor's radiation metal patch antenna array (7) is located at lower floor's ltcc substrate with feeding network (6)(2) upper surface, upper strata radiation metal patch antenna array (4) is positioned at the upper surface of upper strata ltcc substrate (1), feedPort (12) is opened in the upper relevant position of lower floor's ltcc substrate (2) and passes through metal probe (11) and feeding network (6)Connected, metal probe (11) insulate mutually with ground metal layer (3); It is characterized in that described upper strata radiation metal paster antennaArray (4) and lower floor's radiation metal patch antenna array (7) shape, measure-alike, be parallel to each other with ground metal layer (3)Arrange, each aerial array is made up of four subarrays, and each subarray is made up of four radiation metal pasters, wherein each spokePenetrating metal patch is to add on the square of corner cut, one group of opposite side and offers rectangular aperture; Described upper strata ltcc substrate (1) above existsFeed port correspondence position also has circular window, to expose metal probe (11); Described ground metal layer (3) is at feed endMouth correspondence position is offered the circular window with feed port same radius, to expose feed port.
2. by the double-deck single feedback circularly polarization microstrip patch array antenna of a kind of LTCC described in claim 1, it is characterized in that, described inFeeding network (6) adopts quarter-wave transforming section to be connected with metal probe (11), on the corner adopts quadrantRing scans elbow (8) and connects, and adopts top rake ladder (15) to connect, at T-shaped elbow in the different strip line junction of widthPlace adopts top rake (13).
3. by the double-deck single feedback circularly polarization microstrip patch array antenna of a kind of LTCC described in claim 1, it is characterized in that, described inIn upper and lower layer radiation metal patch antenna array (4,7), spacing is greater than 1/2 centre frequency place in length and breadth between radiation metal pasterVacuum wavelength, the corresponding edge distance of the radiation metal paster distance L TCC substrate of edge is greater than 1/4 centre frequency placeVacuum wavelength.
4. by the double-deck single feedback circularly polarization microstrip patch array antenna of a kind of LTCC described in claim 1, it is characterized in that, described inIn upper and lower layer radiation metal patch antenna array (4,7), radiation metal paster corner cut size is produced single-point feedback square patchTwo orthogonal degenerate mode shape phase differences in 90 ° that raw amplitude equates.
5. by the double-deck single feedback circularly polarization microstrip patch array antenna of a kind of LTCC described in claim 1, it is characterized in that, described inThe thickness of the size of upper and lower layer radiation metal patch antenna array (4,7) and upper and lower layer ltcc substrate (1,2)Be related to that Ying Shi lower floor radiation metal patch antenna array (7) resonance is in presenting circularly polarization microstrip patch battle array lower than the double-deck list of whole LTCCThe frequency of array antenna centre frequency, makes upper strata radiation metal patch antenna array (4) resonance in presenting entelechy higher than the double-deck list of LTCCChange the frequency of Section of Microstrip Antenna Array centre frequency.
6. by the double-deck single feedback circularly polarization microstrip patch array antenna of a kind of LTCC described in claim 1, it is characterized in that, described inThe relative dielectric constant of the LTCC ceramic material that upper and lower layer ltcc substrate adopts is between 2～200.
7. by the double-deck single feedback circularly polarization microstrip patch array antenna of a kind of LTCC described in claim 1, it is characterized in that, described inFeeding network (6), upper and lower layer radiation metal patch antenna array (4,7) and ground metal layer (3) all adopt silver slurry to printBrush in corresponding ltcc substrate surface; The double-deck single feedback circularly polarization microstrip patch array antenna of whole LTCC is through curtain coating, punching, sealBrush, lamination, etc. static pressure, cutting and sintering aftershaping.
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| CN201410109290.3A CN103872459B (en) | 2014-03-24 | 2014-03-24 | The double-deck single feedback circularly polarization microstrip patch array antenna of a kind of novel LTCC |
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| CN201410109290.3A CN103872459B (en) | 2014-03-24 | 2014-03-24 | The double-deck single feedback circularly polarization microstrip patch array antenna of a kind of novel LTCC |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5382959A (en) * | 1991-04-05 | 1995-01-17 | Ball Corporation | Broadband circular polarization antenna |
| CN101807748A (en) * | 2010-04-13 | 2010-08-18 | 湖南大学 | Broadband circularly polarization microstrip patch antenna |
-
2014
- 2014-03-24 CN CN201410109290.3A patent/CN103872459B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5382959A (en) * | 1991-04-05 | 1995-01-17 | Ball Corporation | Broadband circular polarization antenna |
| CN101807748A (en) * | 2010-04-13 | 2010-08-18 | 湖南大学 | Broadband circularly polarization microstrip patch antenna |
Non-Patent Citations (1)
| Title |
|---|
| X波段机载雷达微带阵列天线的研发与制作;李宁;《中国优秀硕士学位论文全文数据库》;20140115;第47-59页 * |
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