CN103606751A - Thin substrate quasi-yagi difference beam plane horn antenna - Google Patents
Thin substrate quasi-yagi difference beam plane horn antenna Download PDFInfo
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- CN103606751A CN103606751A CN201310620854.5A CN201310620854A CN103606751A CN 103606751 A CN103606751 A CN 103606751A CN 201310620854 A CN201310620854 A CN 201310620854A CN 103606751 A CN103606751 A CN 103606751A
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Abstract
The invention relates to a horn antenna, and discloses a thin substrate quasi-yagi difference beam plane horn antenna. The antenna comprises a micro-strip feeder (2), a horn antenna body (3) and quasi-yagi antennas (4), wherein the micro-strip feeder (2), the horn antenna body (3) and the quasi-yagi antennas (4) are arranged on a dielectric substrate (1). The horn antenna body (3) is composed of a first metal plane (7), a second metal plane (8) and two rows of metallization through hole horn side walls (9). The odd number of metallization through hole arrays (11) and the even number of medium filling waveguides (17) are arranged in the horn antenna body (3). Each medium filling waveguide (17) on a caliber plane (10) of the horn antenna body (3) is connected with the corresponding quasi-yagi antenna (4) composed of an active vibrator (20) and a passive vibrator (21). A left half antenna (15) and the quasi-yagi antenna connected with the left half antenna (15) are symmetrical with a right half antenna (16) and the quasi-yagi antenna (4) connected with the right half antenna (16) respectively. The polarization direction of a radiation field of the antenna is parallel to the substrate. A thin substrate can be used for manufacturing the antenna, and the antenna is high in gain, large in zero depth, low in cost and compact in structure.
Description
Technical field
The present invention relates to a kind of horn antenna, the accurate Yagi spark gap difference beam of especially a kind of thin substrate plane horn antenna.
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Background technology
Horn antenna has a wide range of applications in the systems such as satellite communication, terrestrial microwave link and radio telescope.But the huge physical dimension of three-dimensional horn antenna has restricted its application and development in planar circuit.In recent years, the proposition of substrate integrated waveguide technology and development have well promoted the development of plane horn antenna.Substrate integration wave-guide have size little, lightweight, be easy to the advantages such as integrated and processing and fabricating.The substrate integration wave-guide plane horn antenna of the plane based on substrate integration wave-guide, except having the feature of horn antenna, has also well been realized miniaturization, the lightness of horn antenna, and has been easy to be integrated in microwave and millimeter wave planar circuit.Traditional substrate integration wave-guide plane horn antenna have a restriction, the thickness of antenna horn aperture substrate is greater than 1/10th operation wavelengths, antenna just can have good radiance, not so due to reflection, the energy emission in antenna is not gone out.So just require the thickness of antenna substrate can not be too thin, not only volume and weight be very large at L-band etc., will to meet this requirement very difficult especially, very thick substrate compared with low-frequency range, has offset integrated advantage, but also has increased cost.The polarised direction of these antenna radiation field is generally all perpendicular to medium substrate in addition, and some application needs the polarization of radiation field to be parallel to medium substrate.More existing antennas load the radiation that paster improves thin substrate plane horn antenna before plane horn antenna, but the patch size loading is larger, and working band is narrower.Conventionally in order to realize difference beam, need to adopt special feeder equipment, these feeder equipments or difficult realization in planar circuit, or the phase-shift circuit of arrowband.
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Summary of the invention
technical problem:the object of the invention is to propose the accurate Yagi spark gap difference beam of a kind of thin substrate plane horn antenna, the polarised direction of this radiation field of aerial is parallel with medium substrate, can use very thin medium substrate manufacture, in the situation that the electric very thin thickness of substrate, still there is good radiance, increase the slope of the zero dark of antenna difference beam and raising antenna difference beam.
technical scheme:the accurate Yagi spark gap difference beam of thin substrate of the present invention plane horn antenna, is characterized in that this antenna comprises the integrated horn antenna of microstrip feed line, substrate and a plurality of Quasi-Yagi antenna being arranged on medium substrate; The first port of described microstrip feed line is the input/output port of this antenna, and the second port of microstrip feed line and the integrated horn antenna of substrate join; The integrated horn antenna of substrate by be positioned at medium substrate one side the first metal flat, be positioned at the second metal flat of medium substrate another side and form with the two row's metallization via hole loudspeaker sidewalls that are connected the first metal flat and the second metal flat through medium substrate, width between two row's metallization via hole loudspeaker sidewalls of the integrated horn antenna of substrate becomes large gradually, form tubaeform dehiscing, the end of dehiscing is the bore face of the integrated horn antenna of substrate; In the integrated horn antenna of substrate, there is odd number metallization arrays of vias to connect the first metal flat and the second metal flat, the length of each metallization arrays of vias is the same, the head end of metallization arrays of vias is inner at the integrated horn antenna of substrate, and the tail end of metallization arrays of vias is on the bore face of the integrated horn antenna of substrate; In metallization arrays of vias, there is an intermediate metallization arrays of vias that whole antenna is divided into a symmetrical left side half antenna and right half antenna two parts; Adjacent two metallization arrays of vias or row's metallization via hole loudspeaker sidewall that metallization arrays of vias is adjacent, form dielectric-filled waveguide with the first metal flat and the second metal flat, outside bore face, each dielectric-filled waveguide is connected to a Quasi-Yagi antenna.
The conduction band of microstrip feed line and the first metal flat join, and the ground plane of microstrip feed line and the second metal flat join.
The width of dielectric-filled waveguide will make electromagnetic wave can propagate therein and not be cut off, more than the length of dielectric-filled waveguide has half guide wavelength.
Each Quasi-Yagi antenna is comprised of an active dipole, one or several parasitic element; Active dipole has respectively the first radiation arm and the second radiation arm on the two sides of medium substrate, the first radiation arm of active dipole is connected with the first metal flat of the integrated horn antenna of substrate, the second radiation arm of active dipole is connected with the second metal flat of the integrated horn antenna of substrate, and the first radiation arm and second radiation arm of each active dipole stretch in the opposite direction; Parasitic element is positioned at any one side or the two sides of medium substrate can.
The direction of extension of the first radiation arm of all active dipoles that left half antenna connects is all identical, and the direction of extension of the second radiation arm of all active dipoles that left half antenna connects is all identical; The direction of extension of the first radiation arm of all active dipoles that right half antenna connects is all identical, and the direction of extension of the second radiation arm of all active dipoles that right half antenna connects is all identical; The direction of extension of the second radiation arm of the active dipole that the direction of extension of the first radiation arm of the active dipole that left half antenna connects connects with right half antenna is identical, and the direction of extension of the first radiation arm of the active dipole that the direction of extension of the second radiation arm of the active dipole that left half antenna connects connects with right half antenna is identical.
In metallization via hole loudspeaker sidewall and metallization arrays of vias, the spacing of two adjacent metallization via holes is less than or equals 1/10th of operation wavelength, makes the metallization via hole loudspeaker sidewall and the metallization arrays of vias that form can be equivalent to electric wall.
Electromagnetic wave is from one end input of microstrip feed line, the other end through microstrip feed line enters substrate integration wave-guide horn antenna, propagate after a segment distance, run into metallization arrays of vias, just enter respectively each dielectric-filled waveguide transmission, the electromagnetic wave that enters each dielectric waveguide enters Quasi-Yagi antenna radiation by antenna opening diametric plane, the polarised direction of radiation field also becomes with substrate and connects subparallel horizontal direction, because the radiation arm of left half antenna Quasi-Yagi antenna and the radiation arm of right half antenna Quasi-Yagi antenna are symmetrical, therefore the polarised direction of left half antenna Quasi-Yagi antenna radiation field is contrary with the polarised direction of right half antenna Quasi-Yagi antenna radiation field, so just the direction at parallel medium substrate has formed difference beam.Quasi-Yagi antenna, in main radiation direction, is equivalent to a linear array, has higher gain, and therefore with respect to common plane horn antenna, this antenna has very high gain, has namely increased by zero dark and slope of difference beam.
Owing to there being a plurality of metallization arrays of vias that the bore face of antenna is divided into a lot of little bore faces, it is very little that the size of the Quasi-Yagi antenna connecing on each osculum diametric plane can be done, and the compact conformation of antenna, size also only increase seldom like this.
Antenna, from feed microstrip line to Quasi-Yagi antenna, be all the substrate integrated wave guide structure of sealing, so feeder loss is less.
beneficial effect:the beneficial effect of the accurate Yagi spark gap difference beam of the thin substrate of the present invention plane horn antenna is that the polarised direction of this radiation field of aerial is parallel with medium substrate; This antenna can use the medium substrate manufacture lower than the thickness of 2 percent wavelength, substrate thickness far below desired 1/10th wavelength of common plane horn antenna, in the situation that the electric very thin thickness of substrate, still there is good radiance, for example, in 6GHz frequency, adopt the thickness of epoxide resin material substrate to be reduced to 0.5mm by 2.5mm, thereby greatly reduce size, weight and cost; Antenna can increase the zero dark of difference beam and improve the slope of antenna difference beam, and compact conformation, the feeder loss of antenna are little.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the structural representation of the accurate Yagi spark gap difference beam of the thin substrate of the present invention plane horn antenna.
In figure, have: medium substrate 1, microstrip feed line 2, the integrated horn antenna 3 of substrate, Quasi-Yagi antenna array 4, the first port 5 of microstrip feed line 2, the second port 6 of microstrip feed line 2, the first metal flat 7 of medium substrate 1, the second metal flat 8 of medium substrate 1, metallization via hole loudspeaker sidewall 9, the bore face 10 of antenna 3, metallization arrays of vias 11, the head end 12 of metallization arrays of vias 11, the tail end 13 of metallization arrays of vias 11, intermediate metallization arrays of vias 14, left half antenna 15, right half antenna 16, dielectric-filled waveguide 17, the conduction band 18 of microstrip feed line 2, the ground plane 19 of microstrip feed line 2, active dipole 20, parasitic element 21, the first radiation arm 22 and the second radiation arm 23.
Embodiment
Embodiment of the present invention is: the accurate Yagi spark gap difference beam of thin substrate plane horn antenna comprises the integrated horn antenna 3 of the microstrip feed line 2, the substrate that are arranged on medium substrate 1 and a plurality of Quasi-Yagi antenna 4; The first port 5 of described microstrip feed line 2 is input/output ports of this antenna, and the second port 6 of microstrip feed line 2 joins with the integrated horn antenna 3 of substrate; The integrated horn antenna 3 of substrate by be positioned at medium substrate 1 one side the first metal flat 7, be positioned at the second metal flat 8 of medium substrate 1 another side and two rows that are connected the first metal flat 7 and the second metal flat 8 through the medium substrate 1 via hole loudspeaker sidewalls 9 that metallize and form, width between two row's metallization via hole loudspeaker sidewalls 9 of the integrated horn antenna 3 of substrate becomes large gradually, form tubaeform dehiscing, the end of dehiscing is the bore face 10 of the integrated horn antenna 3 of substrate; In the integrated horn antenna 3 of substrate, there is odd number metallization arrays of vias 11 to connect the first metal flat 7 and the second metal flat 8, the length of each metallization arrays of vias 11 is the same, the head end 12 of metallization arrays of vias 11 is in the integrated horn antenna of substrate 3 inside, and the tail end 13 of metallization arrays of vias 11 is on the bore face 10 of the integrated horn antenna 3 of substrate; In metallization arrays of vias 11, there is an intermediate metallization arrays of vias 14 that whole antenna is divided into a symmetrical left side half antenna 15 and right half antenna 16 two parts; Adjacent two metallization arrays of vias 11 or row's metallization via hole loudspeaker sidewall 9 that metallization arrays of vias 11 is adjacent, form dielectric-filled waveguide 17 with the first metal flat 7 and the second metal flat 8, outside bore face 10, each dielectric-filled waveguide 17 is connected to a Quasi-Yagi antenna 4.
The conduction band 18 of microstrip feed line 2 and the first metal flat 7 join, and the ground plane 19 of microstrip feed line 2 and the second metal flat 8 join.
The width of dielectric-filled waveguide 17 will make electromagnetic wave can propagate therein and not be cut off, more than the length of dielectric-filled waveguide 17 has half guide wavelength.
Each Quasi-Yagi antenna 4 is comprised of an active dipole 20, one or several parasitic element 21; Active dipole 20 has respectively the first radiation arm 22 and the second radiation arm 23 on the two sides of medium substrate 1, the first radiation arm 22 of active dipole 20 is connected with the first metal flat 7 of the integrated horn antenna 3 of substrate, the second radiation arm 23 of active dipole 20 is connected with the second metal flat 8 of the integrated horn antenna 3 of substrate, and the first radiation arm 22 and second radiation arm 23 of each active dipole 20 stretch in the opposite direction; Parasitic element 22 is positioned at any one side or the two sides of medium substrate 1 can.
The direction of extension of the first radiation arm 22 of all active dipoles 20 that left half antenna 15 connects is all identical, and the direction of extension of the second radiation arm 23 of all active dipoles 20 that left half antenna 15 connects is all identical; The direction of extension of the first radiation arm 22 of all active dipoles 20 that right half antenna 16 connects is all identical, and the direction of extension of the second radiation arm 23 of all active dipoles 20 that right half antenna 16 connects is all identical; The direction of extension of the second radiation arm 23 of the active dipole 20 that the direction of extension of the first radiation arm 22 of the active dipole 20 that left half antenna 15 connects connects with right half antenna 16 is identical, and the direction of extension of the first radiation arm 22 of the active dipole 20 that the direction of extension of the second radiation arm 23 of the active dipole 20 that left half antenna 15 connects connects with right half antenna 16 is identical.
In metallization via hole loudspeaker sidewall 9 and metallization arrays of vias 11, the spacing of two adjacent metallization via holes is less than or equals 1/10th of operation wavelength, makes the metallization via hole loudspeaker sidewall 9 and the metallization arrays of vias 11 that form can be equivalent to electric wall.
When design, the length of metallization arrays of vias 11 generally will make the length of dielectric-filled waveguide 17 have half guide wavelength just can make above antenna have larger gain.
In technique, the accurate Yagi spark gap difference beam of thin substrate plane horn antenna both can adopt common printed circuit board (PCB) (PCB) technique, also can adopt the integrated circuit technologies such as LTCC (LTCC) technique or CMOS, Si substrate to realize.The via hole that wherein metallizes can be that hollow metal through hole can be also solid metal hole, can be also continuous metallization wall, and the shape of metal throuth hole can be circular, can be also square or other shapes.
Structurally, according to same principle, can increase or reduce the quantity of metallization arrays of vias 11, and then change quantity and the size of Quasi-Yagi antenna 4, as long as guarantee that dielectric-filled waveguide 17 can transmit main mould.
According to the above, just can realize the present invention.
Claims (6)
1. the accurate Yagi spark gap difference beam of thin substrate plane horn antenna, is characterized in that this antenna comprises microstrip feed line (2), the integrated horn antenna of substrate (3) and a plurality of Quasi-Yagi antenna (4) being arranged on medium substrate (1); First port (5) of described microstrip feed line (2) is the input/output port of this antenna, and second port (6) of microstrip feed line (2) joins with the integrated horn antenna of substrate (3); The integrated horn antenna of substrate (3) by be positioned at medium substrate (1) one side the first metal flat (7), be positioned at second metal flat (8) of medium substrate (1) another side and two rows that are connected the first metal flat (7) and the second metal flat (8) through medium substrate (1) the via hole loudspeaker sidewalls (9) that metallize and form, width between two row's metallization via hole loudspeaker sidewalls (9) of the integrated horn antenna of substrate (3) becomes large gradually, form tubaeform dehiscing, the end of dehiscing is the bore face (10) of the integrated horn antenna of substrate (3); In the integrated horn antenna of substrate (3), there is odd number metallization arrays of vias (11) to connect the first metal flat (7) and the second metal flat (8), the length of each metallization arrays of vias (11) is the same, the head end (12) of metallization arrays of vias (11) is in the integrated horn antenna of substrate (3) inside, and the tail end (13) of metallization arrays of vias (11) is on the bore face (10) of the integrated horn antenna of substrate (3); In metallization arrays of vias (11), there is an intermediate metallization arrays of vias (14) that whole antenna is divided into a symmetrical left side half antenna (15) and right half antenna (16) two parts; Adjacent two metallization arrays of vias (11) or row's metallization via hole loudspeaker sidewalls (9) that the arrays of vias (11) that metallizes is adjacent, form dielectric-filled waveguide (17) with the first metal flat (7) and the second metal flat (8), outside bore face (10), each dielectric-filled waveguide (17) is connected to a Quasi-Yagi antenna (4).
2. the accurate Yagi spark gap difference beam of thin substrate according to claim 1 plane horn antenna, the conduction band (18) that it is characterized in that microstrip feed line (2) joins with the first metal flat (7), and the ground plane (19) of microstrip feed line (2) joins with the second metal flat (8).
3. the accurate Yagi spark gap difference beam of thin substrate according to claim 1 plane horn antenna, the width that it is characterized in that dielectric-filled waveguide (17) will make electromagnetic wave can propagate therein and not be cut off, more than the length of dielectric-filled waveguide (17) has half guide wavelength.
4. the accurate Yagi spark gap difference beam of thin substrate according to claim 1 plane horn antenna, is characterized in that each Quasi-Yagi antenna (4) is comprised of an active dipole (20), one or several parasitic element (21); Active dipole (20) has respectively the first radiation arm (22) and the second radiation arm (23) on the two sides of medium substrate (1), first radiation arm (22) of active dipole (20) is connected with first metal flat (7) of the integrated horn antenna of substrate (3), second radiation arm (23) of active dipole (20) is connected with second metal flat (8) of the integrated horn antenna of substrate (3), and the first radiation arm (22) and second radiation arm (23) of each active dipole (20) stretch in the opposite direction; Parasitic element (22) is positioned at any one side or the two sides of medium substrate (1) can.
5. according to the thin substrate phase amplitude described in claim 1 or 4, proofread and correct line of rabbet joint difference beam plane horn antenna, the direction of extension of the first radiation arm (22) that it is characterized in that all active dipoles (20) that left half antenna (15) connects is all identical, and the direction of extension of second radiation arm (23) of all active dipoles (20) that left half antenna (15) connects is all identical; The direction of extension of first radiation arm (22) of all active dipoles (20) that right half antenna (16) connects is all identical, and the direction of extension of second radiation arm (23) of all active dipoles (20) that right half antenna (16) connects is all identical; The direction of extension of second radiation arm (23) of the active dipole (20) that the direction of extension of first radiation arm (22) of the active dipole (20) that left half antenna (15) connects connects with right half antenna (16) is identical, and the direction of extension of first radiation arm (22) of the active dipole (20) that the direction of extension of second radiation arm (23) of the active dipole (20) that left half antenna (15) connects connects with right half antenna (16) is identical.
6. the accurate Yagi spark gap difference beam of thin substrate according to claim 1 plane horn antenna, it is characterized in that in described metallization via hole loudspeaker sidewalls (9) and metallization arrays of vias (11), the spacing of two adjacent metallization via holes is less than or equals 1/10th of operation wavelength, makes the metallization via hole loudspeaker sidewalls (9) and the metallization arrays of vias (11) that form can be equivalent to electric wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310620854.5A CN103606751B (en) | 2013-11-29 | 2013-11-29 | Thin substrate quasi-yagi difference beam plane horn antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310620854.5A CN103606751B (en) | 2013-11-29 | 2013-11-29 | Thin substrate quasi-yagi difference beam plane horn antenna |
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| CN103606751A true CN103606751A (en) | 2014-02-26 |
| CN103606751B CN103606751B (en) | 2015-11-18 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937316A (en) * | 2006-10-20 | 2007-03-28 | 东南大学 | Single-pulse chip integrated waveguide slot array antenna |
| CN101075702A (en) * | 2007-06-19 | 2007-11-21 | 东南大学 | Printing antenna with baseplate integrated waveguide feeder |
| US20110018657A1 (en) * | 2008-03-18 | 2011-01-27 | Shi Cheng | Substrate Integrated Waveguide |
| CN102324627A (en) * | 2011-09-06 | 2012-01-18 | 电子科技大学 | Miniaturization substrate integrated multi-beam antenna |
| CN103022715A (en) * | 2012-12-21 | 2013-04-03 | 东南大学 | Planar horn antenna for phase calibration |
-
2013
- 2013-11-29 CN CN201310620854.5A patent/CN103606751B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937316A (en) * | 2006-10-20 | 2007-03-28 | 东南大学 | Single-pulse chip integrated waveguide slot array antenna |
| CN101075702A (en) * | 2007-06-19 | 2007-11-21 | 东南大学 | Printing antenna with baseplate integrated waveguide feeder |
| US20110018657A1 (en) * | 2008-03-18 | 2011-01-27 | Shi Cheng | Substrate Integrated Waveguide |
| CN102324627A (en) * | 2011-09-06 | 2012-01-18 | 电子科技大学 | Miniaturization substrate integrated multi-beam antenna |
| CN103022715A (en) * | 2012-12-21 | 2013-04-03 | 东南大学 | Planar horn antenna for phase calibration |
Non-Patent Citations (1)
| Title |
|---|
| ZHENYU ZHANG，KE WU: "Broadband Millimeter-Wave Quasi-Yagi Antenna Using Substrate Integrated Waveguide Technique", 《RADIO AND WIRELESS SYMPOSIUM, 2008 IEEE》 * |
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