CN103531914B - Based on the high-rder mode resonant slot antenna of hexagon substrate integration wave-guide - Google Patents
Based on the high-rder mode resonant slot antenna of hexagon substrate integration wave-guide Download PDFInfo
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- CN103531914B CN103531914B CN201310478680.3A CN201310478680A CN103531914B CN 103531914 B CN103531914 B CN 103531914B CN 201310478680 A CN201310478680 A CN 201310478680A CN 103531914 B CN103531914 B CN 103531914B
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Abstract
The invention discloses a kind of high-rder mode resonant slot antenna based on hexagon substrate integration wave-guide that can realize two bending radiating slot homophase feeds.This antenna comprises medium substrate, upper surface metal level, lower surface metal layer, upper surface metal level is etched with T-shaped co-planar waveguide input altogether, lower surface metal layer is etched with the first bending radiating slot, second bending radiating slot, described T-shaped altogether co-planar waveguide input strides across the first bending radiating slot, the bending place of T-shaped co-planar waveguide input altogether is that the chamber central of hexagon substrate integrated wave-guide cavity wave is to 2/3 of datum line distance to the distance between datum line, TM in hexagon substrate integrated wave-guide cavity wave can to have been encouraged near center operating frequency
110mode field distributes, thus realizes the homophase feed to two bending radiating slots, and the application of two symmetrical in opposite directions bending radiating slots reduces the lateral dimension of antenna.Be adapted at antenna technical field to apply.
Description
Technical field
The present invention relates to microwave and millimeter wave antenna technical field, be specifically related to a kind of high-rder mode resonant slot antenna based on hexagon substrate integration wave-guide.
Background technology
Traditional metal waveguide cavity slot antenna has that main lobe width is narrow, radiation efficiency is high, gain is high and the advantage such as beam position is fixing, is widely used among microwave and millimeter wave radar and communication system.Complete metal waveguide cavity slot antenna system is made up of multiple metal waveguide, and the wave guide wall of a part of terminal short circuit wherein etches gap and form radiating element, another part waveguide is as feeding network.The problems such as but traditional metal waveguide cavity slot antenna also exists difficult design, volume is large, Heavy Weight, cost are high, processing and Planar integration difficulty.
Propagation characteristic and the rectangular metal waveguide of substrate integration wave-guide are similar, utilize the slot antenna that substrate integrated waveguide technology is formed, and have the performance similar to conventional metals wave-guide cavity wave slot antenna.But the general lower radiating slot that causes of the existing mode of resonance based on the antenna excitation of hexagon chip integrated waveguide slot is less, generally only has a gap, the homophase feed to multiple radiating slot cannot be realized, and higher order mode excitation difficulty and be subject to jamming pattern impact, thus obtain high-gain and ideal orientation figure comparatively difficult.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high-rder mode resonant slot antenna based on hexagon substrate integration wave-guide that can realize two bending radiating slot homophase feeds.
The present invention solves the problems of the technologies described above adopted technical scheme: should based on the high-rder mode resonant slot antenna of hexagon substrate integration wave-guide, comprise medium substrate and be arranged on the upper surface metal level on medium substrate surface, lower surface metal layer, described medium substrate is provided with the plated-through hole array through medium substrate, described plated-through hole array and upper surface metal level, lower surface metal layer surrounds a hexagon substrate integrated wave-guide cavity wave jointly, upper surface metal level is etched with T-shaped co-planar waveguide input altogether, lower surface metal layer is etched with two bending radiating slots, be respectively the first bending radiating slot, second bending radiating slot, described first bending radiating slot, second bending radiating slot is arranged with the chamber central point symmetry of hexagon substrate integrated wave-guide cavity wave, two the first inclined slots that described first bending gap comprises the first horizontal gap and extends obliquely from the two ends of the first horizontal gap, the angle of described first inclined slot and the first horizontal gap is obtuse angle and two the first inclined slots being connected to the first horizontal gap two ends are symmetrical arranged along the perpendicular bisector of the first horizontal gap, two the second inclined slots that described second bending gap comprises the second horizontal gap and extends obliquely from the two ends of the second horizontal gap, the angle of described second inclined slot and the second horizontal gap is obtuse angle and two the second inclined slots being connected to the second horizontal gap two ends are symmetrical arranged along the perpendicular bisector of the second horizontal gap, described T-shaped altogether co-planar waveguide input strides across the first horizontal gap, the bending place of T-shaped co-planar waveguide input altogether is that the chamber central of hexagon substrate integrated wave-guide cavity wave is to 2/3 of datum line distance to the distance between datum line, described datum line is parallel with the first horizontal gap and cross the center being positioned at plated-through hole below the first horizontal gap.
Further, the height of described hexagon substrate integrated wave-guide cavity wave is the sixtieth of the corresponding vacuum wavelength of center of antenna operating frequency.
Further, the gap size of described first bending radiating slot, the second bending radiating slot is all identical.
Further, described medium substrate adopts relative dielectric constant to be 2.2, and thickness is the Rogers5880 dielectric-slab of 0.508mm.
Beneficial effect of the present invention: by being etched with T-shaped co-planar waveguide input altogether on upper surface metal level, lower surface metal layer is etched with two bending radiating slots, be respectively the first bending radiating slot, second bending radiating slot, described first bending radiating slot, second bending radiating slot is arranged with the chamber central point symmetry of hexagon substrate integrated wave-guide cavity wave, two the first inclined slots that described first bending radiating slot comprises the first horizontal gap and extends obliquely from the two ends of the first horizontal gap, the angle of described first inclined slot and the first horizontal gap is obtuse angle and two the first inclined slots being connected to the first horizontal gap two ends are symmetrical arranged along the perpendicular bisector of the first horizontal gap, two the second inclined slots that described second bending radiating slot comprises the second horizontal gap and extends obliquely from the two ends of the second horizontal gap, the angle of described second inclined slot and the second horizontal gap is obtuse angle and two the second inclined slots being connected to the second horizontal gap two ends are symmetrical arranged along the perpendicular bisector of the second horizontal gap, described T-shaped altogether co-planar waveguide input strides across the first horizontal gap, the bending place of T-shaped co-planar waveguide input altogether is that the chamber central of hexagon substrate integrated wave-guide cavity wave is to 2/3 of datum line distance to the distance between datum line, utilize T-shaped altogether co-planar waveguide input can realize transition and the impedance matching of planar microstrip circuit structure and hexagon substrate integrated wave-guide cavity wave structure, and to have encouraged near center operating frequency TM in hexagon substrate integrated wave-guide cavity wave
110mode field distributes, thus the homophase feed realized two bending radiating slots, and the application of two symmetrical in opposite directions bending radiating slots reduces the lateral dimension of antenna, thus realize the Miniaturization Design of antenna, improve the integrated level of modern microwave millimeter-wave systems, in addition, ripe PCB technology manufacture should can be adopted based on the high-rder mode resonant slot antenna of hexagon substrate integration wave-guide, have that cost is low, precision is high, the feature of reproducible, easy processing, easily Planar integration, mass production manufacture can be realized.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high-rder mode resonant slot antenna that the present invention is based on hexagon substrate integration wave-guide;
Fig. 2 is the end view of the high-rder mode resonant slot antenna that the present invention is based on hexagon substrate integration wave-guide;
Fig. 3 is the physical dimension schematic diagram of the high-rder mode resonant slot antenna that the present invention is based on hexagon substrate integration wave-guide;
Fig. 4 is the high-rder mode resonant slot antenna TM in 10GHz place hexagon substrate integrated wave-guide cavity wave that the present invention is based on hexagon substrate integration wave-guide
110mode electric field distributed simulation figure;
Fig. 5 is the input reflection coefficient test result of the high-rder mode resonant slot antenna that the present invention is based on hexagon substrate integration wave-guide;
Fig. 6 be the present invention is based on hexagon substrate integration wave-guide high-rder mode resonant slot antenna in E face, 10GHz place and H surface radiation Pattern measurement result, solid line is E face, and dotted line is H face;
Description of symbols in figure: medium substrate 1, upper surface metal level 2, lower surface metal layer 3, plated-through hole array 4, hexagon substrate integrated wave-guide cavity wave 5, T-shaped altogether co-planar waveguide input 6, first bend radiating slot 7, first horizontal gap 71, first inclined slot 72, second bending radiating slot 8, second horizontal gap 81, second inclined slot 82.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
As Fig. 1, shown in 2, should based on the high-rder mode resonant slot antenna of hexagon substrate integration wave-guide, comprise medium substrate 1 and be arranged on the upper surface metal level 2 on medium substrate 1 surface, lower surface metal layer 3, described medium substrate 1 is provided with the plated-through hole array 4 through medium substrate 1, described plated-through hole array 4 and upper surface metal level 2, lower surface metal layer 3 surrounds a hexagon substrate integrated wave-guide cavity wave 5 jointly, upper surface metal level 2 is etched with T-shaped co-planar waveguide input 6 altogether, lower surface metal layer 3 is etched with two bending radiating slots, be respectively the first bending radiating slot 7, second bending radiating slot 8, described first bending radiating slot 7, second bending radiating slot 8 is arranged with the chamber central point symmetry of hexagon substrate integrated wave-guide cavity wave 5, two the first inclined slots 72 that described first bending radiating slot 7 comprises the first horizontal gap 71 and extends obliquely from the two ends of the first horizontal gap 71, the angle of described first inclined slot 72 and the first horizontal gap 71 is obtuse angle and two the first inclined slots 72 being connected to the first horizontal gap 71 two ends are symmetrical arranged along the perpendicular bisector of the first horizontal gap 71, two the second inclined slots 82 that described second bending radiating slot 8 comprises the second horizontal gap 81 and extends obliquely from the two ends of the second horizontal gap 81, the angle of described second inclined slot 82 and the second horizontal gap 81 is obtuse angle and two the second inclined slots 82 being connected to the second horizontal gap 81 two ends are symmetrical arranged along the perpendicular bisector of the second horizontal gap 81, described T-shaped altogether co-planar waveguide input 6 strides across the first horizontal gap 71, the bending place of T-shaped co-planar waveguide input 6 altogether is that the chamber central of hexagon substrate integrated wave-guide cavity wave 5 is to 2/3 of datum line distance to the distance between datum line, described datum line is parallel with the first horizontal gap 71 and cross the center being positioned at plated-through hole below the first horizontal gap 71.By being etched with T-shaped co-planar waveguide input 6 altogether on upper surface metal level 2, lower surface metal layer 3 is etched with two bending radiating slots, be respectively the first bending radiating slot 7, second bending radiating slot 8, described first bending radiating slot 7, second bending radiating slot 8 is arranged with the chamber central point symmetry of hexagon substrate integrated wave-guide cavity wave 5, two the first inclined slots 72 that described first bending radiating slot 7 comprises the first horizontal gap 71 and extends obliquely from the two ends of the first horizontal gap 71, the angle of described first inclined slot 72 and the first horizontal gap 71 is obtuse angle and two the first inclined slots 72 being connected to the first horizontal gap 71 two ends are symmetrical arranged along the perpendicular bisector of the first horizontal gap 71, two the second inclined slots 82 that described second bending radiating slot 8 comprises the second horizontal gap 81 and extends obliquely from the two ends of the second horizontal gap 81, the angle of described second inclined slot 82 and the second horizontal gap 81 is obtuse angle and two the second inclined slots 82 being connected to the second horizontal gap 81 two ends are symmetrical arranged along the perpendicular bisector of the second horizontal gap 81, described T-shaped altogether co-planar waveguide input 6 strides across the first horizontal gap 71, the bending place of T-shaped co-planar waveguide input 6 altogether is that the chamber central of hexagon substrate integrated wave-guide cavity wave 5 is to 2/3 of datum line distance to the distance between datum line, utilize T-shaped altogether co-planar waveguide input 6 can realize transition and the impedance matching of planar microstrip circuit structure and hexagon substrate integrated wave-guide cavity wave 5 structure, and to have encouraged near center operating frequency TM in hexagon substrate integrated wave-guide cavity wave 5
110mode field distributes, thus the homophase feed realized two bending radiating slots, and the application of two symmetrical in opposite directions bending radiating slots reduces the lateral dimension of antenna, thus realize the Miniaturization Design of antenna, improve the integrated level of modern microwave millimeter-wave systems, in addition, ripe PCB technology manufacture should can be adopted based on the high-rder mode resonant slot antenna of hexagon substrate integration wave-guide, have that cost is low, precision is high, the feature of reproducible, easy processing, easily Planar integration, mass production manufacture can be realized.
In the above-described embodiment, the height of described hexagon substrate integrated wave-guide cavity wave 5 is the sixtieth of the corresponding vacuum wavelength of center of antenna operating frequency, effectively can suppress the T-shaped upper half-space radiation of gap structure at corresponding frequencies place that have of co-planar waveguide input 6 altogether, antenna also can be made to have the features such as small size, low profile, light weight, high-gain, high radiation efficiency and high-isolation simultaneously.
In addition, the gap size that described first bending radiating slot 7, second bends radiating slot 8 is all identical, make the first bending radiating slot 7, second bend radiating slot 8 for having the resonant mode radiating slot of identical central operating frequency, they are by TM in hexagon substrate integrated wave-guide cavity wave 5 near center operating frequency
110mode field distribution homophase feed, can improve the gain in Antenna Operation bandwidth.
Embodiment
In this embodiment, Antenna Operation is at X-band, and center operating frequency is 10GHz, and medium substrate 1 adopts relative dielectric constant to be 2.2, the Rogers5880 dielectric-slab of thickness Hc=0.508mm.As shown in Figure 3, design parameter is as described below for the size of antenna: as shown in Figure 3, antenna is specifically of a size of: Rc=9.7mm, Lms=4.3mm, Wms=1.5mm, Lcpw1=6.65mm, Lcpw2=1.35mm, Gcpw=0.5mm, Ls1=5.1mm, Ls2=3.5mm, Ws=0.8mm, theta=120 °, Os=1.2mm, Dv=1mm, Pv=1.4mm, Ov=1.15mm.
Antenna at center operating frequency 10GHz place, TM in hexagon substrate integrated wave-guide cavity wave 5
110as shown in Figure 4, as can be seen from the figure now the first bending radiating slot 7, second bends radiating slot 8 homophase feed to mode electric field distributed simulation result; As shown in Figure 5 ,-10dB relative bandwidth is 0.75% to antenna input reflection coefficient test result, and effectively inhibits microstrip line to transfer the T-shaped upper half-space radiation of gap structure at corresponding frequencies place that have of co-planar waveguide input 6 altogether; Antenna at 10GHz place, maximum gain test result be 7.71dBi, E face and H surface radiation Pattern measurement result as shown in Figure 6, wherein E face and H face half-power main lobe width test result are respectively 65 ° and 90 °.
Claims (4)
1. based on the high-rder mode resonant slot antenna of hexagon substrate integration wave-guide, comprise medium substrate (1) and be arranged on the upper surface metal level (2) on medium substrate (1) surface, lower surface metal layer (3), described medium substrate (1) is provided with the plated-through hole array (4) through medium substrate (1), described plated-through hole array (4) and upper surface metal level (2), lower surface metal layer (3) surrounds a hexagon substrate integrated wave-guide cavity wave (5) jointly, it is characterized in that: on upper surface metal level (2), be etched with T-shaped co-planar waveguide input (6) altogether, lower surface metal layer (3) is etched with two bending radiating slots, be respectively the first bending radiating slot (7), second bending radiating slot (8), described first bending radiating slot (7), second bending radiating slot (8) is arranged with the chamber central point symmetry of hexagon substrate integrated wave-guide cavity wave (5), two the first inclined slots (72) that described first bending radiating slot (7) comprises the first horizontal gap (71) and extends obliquely from the two ends of the first horizontal gap (71), the angle of described first inclined slot (72) and the first horizontal gap (71) is obtuse angle and two the first inclined slots (72) being connected to the first horizontal gap (71) two ends are symmetrical arranged along the perpendicular bisector of the first horizontal gap (71), two the second inclined slots (82) that described second bending radiating slot (8) comprises the second horizontal gap (81) and extends obliquely from the two ends of the second horizontal gap (81), the angle of described second inclined slot (82) and the second horizontal gap (81) is obtuse angle and two the second inclined slots (82) being connected to the second horizontal gap (81) two ends are symmetrical arranged along the perpendicular bisector of the second horizontal gap (81), described T-shaped altogether co-planar waveguide input (6) strides across the first horizontal gap, the bending place of T-shaped co-planar waveguide input (6) altogether is that the chamber central of hexagon substrate integrated wave-guide cavity wave (5) is to 2/3 of datum line distance to the distance between datum line, described datum line is parallel with the first horizontal gap (71) and cross the center of plated-through hole being positioned at the first horizontal gap (71) below, described T-shaped altogether co-planar waveguide input (6) is an elongated metal layer, and the both sides of this elongated metal layer are provided with a first rectangular gap, a second rectangular gap is set respectively in the both sides of the end of input, and the end in first of input either side the rectangular gap is vertically connected with the head end in the second rectangular gap.
2. as claimed in claim 1 based on the high-rder mode resonant slot antenna of hexagon substrate integration wave-guide, it is characterized in that: the height of described hexagon substrate integrated wave-guide cavity wave (5) is the sixtieth of the corresponding vacuum wavelength of center of antenna operating frequency.
3. as claimed in claim 1 or 2 based on the high-rder mode resonant slot antenna of hexagon substrate integration wave-guide, it is characterized in that: the gap size of described first bending radiating slot (7), the second bending radiating slot (8) is all identical.
4. as claimed in claim 3 based on the high-rder mode resonant slot antenna of hexagon substrate integration wave-guide, it is characterized in that: described medium substrate (1) adopts relative dielectric constant to be 2.2, and thickness is the Rogers5880 dielectric-slab of 0.508mm.
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| CN103996901B (en) * | 2014-05-27 | 2017-07-07 | 东南大学 | A kind of high-gain circular polarized antenna for being easy to Planar integration |
| CN104282988B (en) * | 2014-09-30 | 2016-08-24 | 中国电子科技集团公司第三十八研究所 | Metallic cavity broad-band antenna |
| CN105470644B (en) * | 2016-01-07 | 2018-01-16 | 华南理工大学 | A kind of millimeter wave mimo antenna |
| CN113571900B (en) * | 2021-07-30 | 2024-04-12 | 海信集团控股股份有限公司 | Feed structure, millimeter wave antenna and car |
| CN113794050A (en) * | 2021-09-16 | 2021-12-14 | 中国科学院空天信息研究院粤港澳大湾区研究院 | Terahertz integrated antenna based on high-order mode feed |
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| JP2002232228A (en) * | 2001-02-05 | 2002-08-16 | Dx Antenna Co Ltd | Fan beam antenna |
| JP2008160624A (en) * | 2006-12-26 | 2008-07-10 | Kyocera Corp | High-frequency device board, aperture plane antenna, high-frequency line - waveguide converter and high-frequency device |
| CN201966326U (en) * | 2011-01-21 | 2011-09-07 | 杭州电子科技大学 | High-gain integrated antenna based on high order cavity resonant mode |
| CN202134661U (en) * | 2011-01-21 | 2012-02-01 | 杭州电子科技大学 | Double seam integration antenna of back chamber of increased gain |
| CN102723543A (en) * | 2012-07-02 | 2012-10-10 | 电子科技大学 | Hexagonal resonant cavity substrate integrated waveguide filter |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002232228A (en) * | 2001-02-05 | 2002-08-16 | Dx Antenna Co Ltd | Fan beam antenna |
| JP2008160624A (en) * | 2006-12-26 | 2008-07-10 | Kyocera Corp | High-frequency device board, aperture plane antenna, high-frequency line - waveguide converter and high-frequency device |
| CN201966326U (en) * | 2011-01-21 | 2011-09-07 | 杭州电子科技大学 | High-gain integrated antenna based on high order cavity resonant mode |
| CN202134661U (en) * | 2011-01-21 | 2012-02-01 | 杭州电子科技大学 | Double seam integration antenna of back chamber of increased gain |
| CN102723543A (en) * | 2012-07-02 | 2012-10-10 | 电子科技大学 | Hexagonal resonant cavity substrate integrated waveguide filter |
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