CN105449354A - Low cross coupling antenna array utilizing Fermat-Archimedes spiral groove wire double-through-hole electromagnetic band gap structure - Google Patents
Low cross coupling antenna array utilizing Fermat-Archimedes spiral groove wire double-through-hole electromagnetic band gap structure Download PDFInfo
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- CN105449354A CN105449354A CN201510956626.4A CN201510956626A CN105449354A CN 105449354 A CN105449354 A CN 105449354A CN 201510956626 A CN201510956626 A CN 201510956626A CN 105449354 A CN105449354 A CN 105449354A
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- spiral groove
- fermat
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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
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
Abstract
The invention provides a low cross coupling antenna array utilizing a Fermat-Archimedes spiral groove wire double-through-hole electromagnetic band gap structure. The low cross coupling antenna array comprises the Fermat-Archimedes spiral groove wire double-through-hole electromagnetic band gap structure and a quaternary circularly polarized antenna array, wherein the Fermat-Archimedes spiral groove wire double-through-hole electromagnetic band gap structure is formed by periodically arranging and combining multiple electromagnetic band gap structure units, the length-to-width ratio of each electromagnetic band gap structure unit is 3 to 1, a Fermat groove wire at the center of each unit is connected with two Archimedes spiral groove wires with the same turns and spiral directions, which are located at the two ends of the corresponding unit, and two metallized through holes are respectively located at the center of the two Archimedes spiral groove wires; the quaternary circularly polarized antenna array are fed by coaxial wires, and antenna units sequentially rotates 90 degrees. According to the low cross coupling antenna array utilizing the Fermat-Archimedes spiral groove wire double-through-hole electromagnetic band gap structure, the miniaturization of the Fermat-Archimedes spiral groove wire double-through-hole electromagnetic band gap structure is achieved, the cross coupling among the antenna units is effectively reduced, and the radiation performance of the antenna array is improved.
Description
Technical field
The present invention relates to a kind of miniaturized electromagnetic bandgap structure in field of antenna application, particularly a kind of low-cross coupling antenna array adopting the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line.
Background technology
Flourish along with electronic information technology, the application of antenna in various equipment is also more extensive.In order to the demand that the integrated level adapting to Modern communication devices is high, the research and development of antenna also stride forward to miniaturization, simultaneously also more and more higher to the performance requirement of antenna.Wherein array antenna not only achieves miniaturization, and drastically increases directivity and the gain of antenna.But while realization is miniaturized, the array element of antenna is constantly close, mutual coupling can be caused more serious, namely the electric current on an antenna can produce induced current on another antenna, affect the performances such as the gain of aerial array, directional diagram, one or more unit of aerial array cannot normally be worked.Therefore, we need by the mutual coupling in various mode suppressing antenna array between each antenna element.Electromagnetic bandgap structure can stop the Electromagnetic Wave Propagation of special frequency channel, reaches the mutual coupling target suppressed between array antenna unit.
Find according to retrieval, relevant research has been carried out in the design for mutual coupling suppression structure, and the mutual coupling proposed suppresses structure to contain various shape.Wherein modal mutual coupling suppresses structure to be mushroom-shaped structure, but construction unit is larger; In order to reducing unit physical dimension, much more compact structure is suggested, and the small-scale structure that such as AlexanderStark proposes more easily realizes the densification of array, but structure is more complicated, and difficulty of processing is large; Tang Wanchun etc. propose a kind of C type groove planar electromagnetic bandgap structure, effectively suppress simultaneous switching noise and reduce the use of decoupling capacitor; A kind of small multiple band electromagnetic bandgap structure of the design such as Zhang Daoliang, by etching four centrosymmetric F shape grooves, forms multiple resonant tank while extending equivalent current path, achieves comprehensive Design that is miniaturized and multiband.The present invention adopts the combination line of rabbet joint of archimedean spiral groove line and the Fermat line of rabbet joint, electromagnetic bandgap structure unit also non-square, relative traditional electrical ultra wide, and the degree of freedom of design is larger, and application is more flexible, and degree of miniaturization is also higher.
Summary of the invention
Technical problem to be solved by this invention: overcome the deficiencies in the prior art, provides a kind of Fermat-archimedean spiral groove line two via hole electromagnetic bandgap structure that adopts that the mutual coupling between quaternary circular polarization antenna array is reduced, improves antenna array performance.
The technical solution used in the present invention is: a kind of low-cross coupling antenna array adopting the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line, comprises the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line and quaternary circular polarization antenna array, wherein:
The two via hole electromagnetic bandgap structure of described Fermat-archimedean spiral groove line comprises metal patch, electromagnetic bandgap structure medium substrate, metal floor, metallization via hole, manhole and square through hole, electromagnetic bandgap structure medium substrate has parallel first surface and second surface, first surface is the metal patch of periodic arrangement, and second surface is metal floor;
Described quaternary circular polarization antenna array comprises radiation patch, antenna medium substrates, metal floor, metallization via hole and manhole, antenna medium substrates has parallel first surface and second surface, first surface is radiation patch, and second surface is metal floor.
Wherein, electromagnetic bandgap structure unit is bimetallic via structure, and its length-width ratio is 3:1, and unit interval is equal.
Wherein, the first surface of electromagnetic bandgap structure medium substrate is that the rectangular metal paster of periodic arrangement can be divided into three parts along long limit, be designated as the 1st subelement, the 2nd subelement and the 3rd subelement successively, there is metallization via hole at 1st subelement and the 3rd subelement center, and with the archimedean spiral groove line of same number of turns with identical rotation direction, archimedean spiral groove line starting point lays respectively at inside metallization via hole.The Fermat line of rabbet joint is positioned at the 2nd subelement, and the 1st subelement is connected with the archimedean spiral groove line end of the 3rd subelement by line of rabbet joint two ends.The archimedean spiral groove line of the 1st subelement, the Fermat line of rabbet joint of the 2nd subelement are connected with archimedean spiral groove line three articles of line of rabbet joint of the 3rd subelement.
Wherein, described square through hole is positioned at four angles of electromagnetic bandgap structure medium substrate, is placed with four manholes around each square through hole corner.
Wherein, radiation patch is square, circular polarization is realized by paster diagonal angle corner cut, adopt coaxial feeding, coaxial inner conductor is welded with radiation patch mutually by metallization via hole, coaxial outer conductor welds mutually with the metal floor of antenna medium substrates second surface, four circular polarized antenna unit are positioned at the corner of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line, and 90-degree rotation successively, the feeding coaxial lines of antenna element passes through the square through hole of electromagnetic bandgap structure medium substrate, successively through electromagnetic bandgap structure medium substrate first surface and second surface.
Wherein, there are four manholes circular polarized antenna unit corner, identical with pitch of holes with four manhole diameters around four square through holes of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line, for circular polarized antenna being fixed on the first surface of electromagnetic bandgap structure medium substrate.
Principle of the present invention is:
Adopt a low-cross coupling antenna array for the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line, comprising: the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line and quaternary circular polarization antenna array, its structure realizes as follows:
The two via hole electromagnetic bandgap structure of described Fermat-archimedean spiral groove line comprises: metal patch, electromagnetic bandgap structure medium substrate, metal floor, metallization via hole, manhole and square through hole.Electromagnetic bandgap structure medium substrate has parallel first surface and second surface, and first surface is the metal patch of periodic arrangement, and second surface is metal floor.The two via hole electromagnetic bandgap structure unit length-width ratio of Fermat-archimedean spiral groove line is 3:1, and unit interval is equal; The first surface of medium substrate is the rectangular metal paster of periodic arrangement, and metal patch spacing is equal.Four square through holes of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line are positioned at four angles of medium substrate, arrangement four manholes around each square through hole corner, match with the manhole of quaternary circular polarized antenna array element, for fixed antenna array in the position of four manholes wherein around square through hole.
The rectangular metal paster of periodic arrangement electromagnetic bandgap structure unit can be divided into three parts along long limit, is designated as the 1st subelement, the 2nd subelement and the 3rd subelement successively, and every part is square.All there is metallization via hole at 1st subelement and the 3rd subelement center, and with the archimedean spiral groove line of same number of turns with identical rotation direction, archimedean spiral groove line starting point lays respectively at inside metallization via hole.The Fermat line of rabbet joint is positioned at the 2nd subelement, and the 1st subelement is connected with the archimedean spiral groove line end of the 3rd subelement by line of rabbet joint two ends.The archimedean spiral groove line of the 1st subelement, the Fermat line of rabbet joint of the 2nd subelement are connected with archimedean spiral groove line three articles of line of rabbet joint of the 3rd subelement.Described quaternary circular polarization antenna array comprises: radiation patch, antenna medium substrates, metal floor, metallization via hole and manhole.Antenna medium substrates has parallel first surface and second surface.First surface is radiation patch, and second surface is metal floor.Radiation patch is square, realizes circular polarization by paster diagonal angle corner cut, adopts coaxial feeding, and coaxial inner conductor is welded with radiation patch mutually by metallization via hole, and coaxial outer conductor welds mutually with antenna medium substrates second surface metal floor.Four circular polarized antenna unit are positioned at the corner of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line, and 90-degree rotation successively.The feeding coaxial lines of antenna element, by the square through hole of electromagnetic bandgap structure medium substrate, passes electromagnetic bandgap structure medium substrate first surface and second surface successively.
A kind of technical scheme adopting the low-cross coupling antenna array of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line of the present invention, has following beneficial effect:
(1), the present invention adopts Fermat-archimedean spiral groove line and two via structure, increases equivalent inductance, is conducive to realizing the miniaturization of electromagnetic bandgap structure and broadband, expanded the range of application of electromagnetic bandgap structure.
(2), two to quaternary circular polarization antenna array and Fermat-archimedean spiral groove line via hole electromagnetic bandgap structure combines by the present invention, can suppressing antenna inter-element mutual coupling more effectively.
(3), the present invention is the low-cross coupling antenna array of the two via hole electromagnetic bandgap structure of a kind of Fermat-archimedean spiral groove line, can be many for the design parameter optimized, and design freedom is large.
Accompanying drawing explanation
Figure 1A is the low-cross coupling antenna array front plan view of the two via hole electromagnetic bandgap structure of employing Fermat-archimedean spiral groove line of the embodiment of the present invention;
Figure 1B is the low-cross coupling antenna array end view of the two via hole electromagnetic bandgap structure of employing Fermat-archimedean spiral groove line of the embodiment of the present invention;
Fig. 1 C is the low-cross coupling antenna array back side vertical view of the two via hole electromagnetic bandgap structure of employing Fermat-archimedean spiral groove line of the embodiment of the present invention;
Fig. 2 A is the unit front plan view of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line of example of the present invention;
Fig. 2 B is the cell side view of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line of example of the present invention;
Fig. 3 is that the low-cross coupling antenna array of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line of example of the present invention compares with traditional quaternary circular polarization antenna array inter-element mutual coupling simulation result.
In figure, the implication of Reference numeral is:
100: first surface;
101: metal patch;
200: second surface;
201: metal floor;
300: electromagnetic bandgap structure medium substrate;
301: electromagnetic bandgap structure manhole;
302: square through hole;
303: electromagnetic bandgap structure metallization via hole;
400: antenna element;
401: radiation patch;
402: antenna medium substrates;
403: the metal floor of antenna;
404: radiation patch corner cut;
405: the manhole of antenna;
406: the metallization via hole of antenna;
500: electromagnetic bandgap structure unit;
501: the 1st subelement of electromagnetic bandgap structure unit;
502: the 2nd subelement of electromagnetic bandgap structure unit;
503: the 3rd subelement of electromagnetic bandgap structure unit;
The archimedean spiral groove line of 601: the 1 subelements;
602: the Fermat line of rabbet joint;
The archimedean spiral groove line of 603: the 3 subelements;
L: the metal ground plate length of side;
L1: the medium substrate length of side of antenna;
H2: the dielectric substrate thickness of antenna;
A: the length of side of square through hole;
R: the radius of manhole;
W1: the distance between manhole;
G: the interval between electromagnetic bandgap structure unit;
H: the thickness of electromagnetic bandgap structure medium substrate;
L2: the long limit of electromagnetic bandgap structure unit;
W2: electromagnetic bandgap structure unit broadside;
W3: the width of the line of rabbet joint;
W4: the distance at the bimetallic via hole center of electromagnetic bandgap structure unit;
L3: the length of side of the radiation patch of circularly-polarized patch antenna;
R: the radius of metallization via hole.
Embodiment
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Figure 1A to Fig. 1 C is the overall schematic of present pre-ferred embodiments, and Fig. 2 A to Fig. 2 B is the cell schematics of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line of example of the present invention.
As shown in Figure 1A to Fig. 1 C, the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line comprises electromagnetic bandgap structure medium substrate 300, metal patch 101, metallization via hole 303, square through hole 302, manhole 301 and metal floor 201.Electromagnetic bandgap structure medium substrate 300 has the first surface 100 and second surface 200 that are parallel to each other, and wherein second surface 200 is metal ground plate 201.Metal patch 101 is positioned at first surface 100, is made up of according to 5 × 15 periodic arrangement the two via hole electromagnetic bandgap structure unit 500 of Fermat-archimedean spiral groove line.Metallization via hole 303 runs through electromagnetic bandgap structure medium substrate 300.Square through hole 302 is positioned at four angles of electromagnetic bandgap structure medium substrate 300, and square through hole 302 surrounding is arranged four manholes 301.
As shown in Fig. 2 A to Fig. 2 B, the spacing g between the two via hole electromagnetic bandgap structure unit 500 of Fermat-archimedean spiral groove line is equal.Electromagnetic bandgap structure unit 500 comprises two metallization via holes 303 and 304, and its metal patch 101 can be divided into three parts along long limit (L2) direction, is designated as the 1st subelement 501, the 2nd subelement 502 and the 3rd subelement 503; 1st subelement 501 and the 3rd subelement 503 center have the via hole 303 and 304 that metallizes respectively, and with the archimedean spiral groove line of same number of turns with identical rotation direction, archimedean spiral groove line starting point lays respectively at inside metallization via hole 303 and 304.The Fermat line of rabbet joint 602 is positioned at the 2nd subelement 502, line of rabbet joint two ends are connected with archimedean spiral groove line 603 end of the 3rd subelement 503 with archimedean spiral groove line 601 end of the 1st subelement 501, and the Fermat line of rabbet joint 602 of the archimedean spiral groove line 601 of the 1st subelement 501, the 2nd subelement 502 is connected with archimedean spiral groove line 603 3 articles of line of rabbet joint of the 3rd subelement 503.
As shown in Figure 1A to Fig. 1 C, Fig. 2 A to Fig. 2 B: the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line adopts the printed circuit sheet material of double-sided copper-clad, is processed by PCB plate-making technology.Concrete preferred embodiment, electromagnetic bandgap structure medium substrate 300 length of side L is 210mm, and thickness H is 2mm, and dielectric constant is 2.9, and the material of metal patch is copper.The material of metal floor 200 is copper, and long and wide is 210mm.The radius of metallization via hole 303 is 0.5mm, the length of square through hole 302 and wide be 22.0mm, the manhole 301 of electromagnetic bandgap structure and manhole 405 radius of antenna are 0.5mm.
As shown in Fig. 2 A to Fig. 2 B, the two via hole electromagnetic bandgap structure unit length-width ratio of Fermat-archimedean spiral groove line is 3:1, and long L2 is 39mm, and wide W2 is 13mm.The line of rabbet joint live width W3 of the Fermat line of rabbet joint 602 and archimedean spiral groove line 601 is 0.5mm, and the number of turns of archimedean spiral groove line 601 and 603 is 4, and the interval g between electromagnetic bandgap structure unit is 0.5mm.
As shown in Figure 1A, concrete preferred embodiment, antenna element 400 is made up of antenna medium substrates 402, radiation patch 401 and metal floor 403.The length of side L1 of antenna medium substrates 402 is 22.0mm, and thickness H2 is 2mm, and dielectric constant is 28.The length of side L3 of radiation patch 401 is 11.0mm, and radiation patch 401 realizes circular polarization by corner cut 404.Antenna element 400 adopts coaxial feeding, and coaxial inner conductor is welded with radiation patch 401 mutually by the metallization via hole 406 of antenna, and coaxial outer conductor welds mutually with the metal floor 403 of antenna.Antenna element 400 half-twist successively, forms quaternary antenna array.The feeding coaxial lines of antenna element 400, by the square through hole 302 of electromagnetic bandgap structure, passes first surface 100 and the second surface 200 of electromagnetic bandgap structure medium substrate 300 successively.Antenna element 400, by the manhole 405 of antenna and the manhole 301 of electromagnetic bandgap structure, is fixed on the first surface 100 of electromagnetic bandgap structure medium substrate 300.
Fig. 3 compares with the S21 simulation result of the antenna array without EBG structure with electro-magnetic bandgap (EBG) structure of Fermat-archimedean spiral groove line.Center of antenna frequency is 1.268GHz, without EBG structure antenna element between transmission coefficient be-19.2dB, with the two via hole EBG structure of Fermat-archimedean spiral groove line antenna element between transmission coefficient be-19.9dB.Can find out, the isolation added between the antenna array element after EBG structure improves 0.7dB, and therefore EBG structure has certain inhibitory action to mutual coupling between antenna element.
From the invention described above preferred embodiment, applying advantage of the present invention is: two for Fermat-archimedean spiral groove line via hole electromagnetic bandgap structure and antenna connected applications are improve isolation between antenna element, effective suppression inter-element mutual coupling, improves antenna performance.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claims in the present invention.
Claims (6)
1. adopt a low-cross coupling antenna array for the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line, it is characterized in that: comprise the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line and quaternary circular polarization antenna array, wherein:
The two via hole electromagnetic bandgap structure of described Fermat-archimedean spiral groove line comprises metal patch, electromagnetic bandgap structure medium substrate, metal floor, metallization via hole, manhole and square through hole, electromagnetic bandgap structure medium substrate has parallel first surface and second surface, first surface is the metal patch of periodic arrangement, and second surface is metal floor;
Described quaternary circular polarization antenna array comprises radiation patch, antenna medium substrates, metal floor, metallization via hole and manhole, antenna medium substrates has parallel first surface and second surface, first surface is radiation patch, and second surface is metal floor.
2. the low-cross coupling antenna array of the two via hole electromagnetic bandgap structure of employing Fermat-archimedean spiral groove line according to claim 1, is characterized in that: electromagnetic bandgap structure unit is bimetallic via structure, and its length-width ratio is 3:1, and unit interval is equal.
3. the low-cross coupling antenna array of the two via hole electromagnetic bandgap structure of employing Fermat-archimedean spiral groove line according to claim 1, it is characterized in that: the first surface of electromagnetic bandgap structure medium substrate is that the rectangular metal paster of periodic arrangement can be divided into three parts along long limit, be designated as the 1st subelement, the 2nd subelement and the 3rd subelement successively, there is metallization via hole at 1st subelement and the 3rd subelement center, and with the archimedean spiral groove line of same number of turns with identical rotation direction, archimedean spiral groove line starting point lays respectively at inside metallization via hole.The Fermat line of rabbet joint is positioned at the 2nd subelement, and the 1st subelement is connected with the archimedean spiral groove line end of the 3rd subelement by line of rabbet joint two ends.The archimedean spiral groove line of the 1st subelement, the Fermat line of rabbet joint of the 2nd subelement are connected with archimedean spiral groove line three articles of line of rabbet joint of the 3rd subelement.
4. the low-cross coupling antenna array of the two via hole electromagnetic bandgap structure of employing Fermat-archimedean spiral groove line according to claim 1, it is characterized in that: described square through hole is positioned at four angles of electromagnetic bandgap structure medium substrate, is placed with four manholes around each square through hole corner.
5. the low-cross coupling antenna array of the two via hole electromagnetic bandgap structure of employing Fermat-archimedean spiral groove line according to claim 1, it is characterized in that: radiation patch is square, circular polarization is realized by paster diagonal angle corner cut, adopt coaxial feeding, coaxial inner conductor is welded with radiation patch mutually by metallization via hole, coaxial outer conductor welds mutually with the metal floor of antenna medium substrates second surface, four circular polarized antenna unit are positioned at the corner of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line, and 90-degree rotation successively, the feeding coaxial lines of antenna element passes through the square through hole of electromagnetic bandgap structure medium substrate, successively through electromagnetic bandgap structure medium substrate first surface and second surface.
6. the low-cross coupling antenna array of the two via hole electromagnetic bandgap structure of employing Fermat-archimedean spiral groove line according to claim 1, it is characterized in that: there are four manholes circular polarized antenna unit corner, identical with pitch of holes with four manhole diameters around four square through holes of the two via hole electromagnetic bandgap structure of Fermat-archimedean spiral groove line, for circular polarized antenna being fixed on the first surface of electromagnetic bandgap structure medium substrate.
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| CN201510956626.4A CN105449354B (en) | 2015-12-18 | 2015-12-18 | A kind of low-cross coupling antenna array using the double via electromagnetic bandgap structures of Fermat archimedean spiral groove line |
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| CN201510956626.4A CN105449354B (en) | 2015-12-18 | 2015-12-18 | A kind of low-cross coupling antenna array using the double via electromagnetic bandgap structures of Fermat archimedean spiral groove line |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768815A (en) * | 2017-09-29 | 2018-03-06 | 五邑大学 | A kind of high directivity spiral slit phased-array antenna |
| CN108933331A (en) * | 2018-07-26 | 2018-12-04 | 胡南 | Archimedian screw array antenna |
| CN109411895A (en) * | 2018-10-24 | 2019-03-01 | 北京无线电测量研究所 | Three layers of spiral slit transmission units of one kind and transmissive arrays antenna |
| CN112968261A (en) * | 2021-02-03 | 2021-06-15 | 中国电子科技集团公司第四十三研究所 | Miniaturized high-performance patch bridge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009033324A (en) * | 2007-07-25 | 2009-02-12 | Nippon Antenna Co Ltd | Antenna |
| CN104157982A (en) * | 2014-07-07 | 2014-11-19 | 华东交通大学 | Dual-polarized MIMO antenna based on EBG structure |
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2015
- 2015-12-18 CN CN201510956626.4A patent/CN105449354B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009033324A (en) * | 2007-07-25 | 2009-02-12 | Nippon Antenna Co Ltd | Antenna |
| CN104157982A (en) * | 2014-07-07 | 2014-11-19 | 华东交通大学 | Dual-polarized MIMO antenna based on EBG structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768815A (en) * | 2017-09-29 | 2018-03-06 | 五邑大学 | A kind of high directivity spiral slit phased-array antenna |
| CN108933331A (en) * | 2018-07-26 | 2018-12-04 | 胡南 | Archimedian screw array antenna |
| CN108933331B (en) * | 2018-07-26 | 2024-04-30 | 胡南 | Archimedes spiral array antenna |
| CN109411895A (en) * | 2018-10-24 | 2019-03-01 | 北京无线电测量研究所 | Three layers of spiral slit transmission units of one kind and transmissive arrays antenna |
| CN112968261A (en) * | 2021-02-03 | 2021-06-15 | 中国电子科技集团公司第四十三研究所 | Miniaturized high-performance patch bridge |
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