CN103531913B - Hexagonal substrate integrated waveguide slot antenna - Google Patents
Hexagonal substrate integrated waveguide slot antenna Download PDFInfo
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- CN103531913B CN103531913B CN201310478610.8A CN201310478610A CN103531913B CN 103531913 B CN103531913 B CN 103531913B CN 201310478610 A CN201310478610 A CN 201310478610A CN 103531913 B CN103531913 B CN 103531913B
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Abstract
The invention discloses a hexagonal substrate integrated waveguide slot antenna, which can be used for realizing in-phase feed of four radiation slots. The antenna comprises a medium substrate, an upper surface metal layer and a lower surface metal layer, wherein a T-shaped ground coplanar waveguide input end is etched on the upper surface metal layer; four parallel rectangular radiation slots are etched on the lower surface metal layer; the T-shaped ground coplanar waveguide input end crosses a first rectangular radiation slot; the distance between a bent part of the T-shaped ground coplanar waveguide input end and a reference line is one third of the distance between the cavity center of a hexagonal substrate integrated waveguide cavity and the reference line; TM310 mode field distribution in the hexagonal substrate integrated waveguide cavity close to a central working frequency can be excited, and a low-order resonant mode inside the hexagonal substrate integrated waveguide cavity is restrained by using a central hexagonal through hole array, so that in-phase feed of four parallel rectangular radiation slots is realized. The antenna is suitable to be popularized and applied in the technical field of antennae.
Description
Technical field
The present invention relates to microwave and millimeter wave antenna technical field, be specifically related to a kind of hexagon chip integrated waveguide slot antenna.
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, and the hexagon chip integrated waveguide slot antenna utilizing substrate integrated waveguide technology to form, has the performance similar to conventional metals wave-guide cavity wave slot antenna.But the general lower radiating slot that causes of the mode of resonance of existing hexagon chip integrated waveguide slot antenna excitation 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 hexagon chip integrated waveguide slot antenna that can realize four radiating slot homophase feeds.
The present invention solves the problems of the technologies described above adopted technical scheme: this hexagon chip integrated waveguide slot antenna, 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 peripheral metal via-hole array through medium substrate, described peripheral metal via-hole array and upper surface metal level, lower surface metal layer surrounds a hexagon substrate integrated wave-guide cavity wave jointly, the central hexagonal via-hole array of multiple plated-through hole composition is provided with at the center of hexagon substrate integrated wave-guide cavity wave, upper surface metal level is etched with T-shaped co-planar waveguide input altogether, lower surface metal layer is etched with four parallel with the end of T-shaped co-planar waveguide input altogether respectively rectangular radiation gaps, be respectively the first rectangular radiation gap, second rectangular radiation gap, 3rd rectangular radiation gap, 4th rectangular radiation gap, described first rectangular radiation gap, 3rd rectangular radiation gap lays respectively at the both sides up and down of central hexagonal via-hole array, second rectangular radiation gap, 4th rectangular radiation gap lays respectively at the left and right sides of central hexagonal via-hole array, described T-shaped altogether co-planar waveguide input strides across the first rectangular radiation 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 1/3 of datum line distance to the distance between datum line, described datum line is parallel with the first rectangular radiation gap and cross the center being positioned at plated-through hole below the first rectangular radiation gap.
Further, the bending place of described T-shaped co-planar waveguide input altogether is that the chamber central of hexagon substrate integrated wave-guide cavity wave is to 1/3 of datum line distance to the distance between datum line.
Further, the circumradius of described central hexagonal via-hole array is 1/3 of the circumradius of hexagon substrate integrated wave-guide cavity wave.
Further, the height of described hexagon substrate integrated wave-guide cavity wave is 1/27th of the corresponding vacuum wavelength of center of antenna operating frequency.
Further, the gap width in described first rectangular radiation gap, the second rectangular radiation gap, the 3rd rectangular radiation gap, the 4th rectangular radiation gap is all identical with gap length.
Further, described medium substrate adopts relative dielectric constant to be 2.2, and thickness is Rogers 5880 dielectric-slab of 0.508mm.
Beneficial effect of the present invention: by being provided with the central hexagonal via-hole array of multiple plated-through hole composition at the center of hexagon substrate integrated wave-guide cavity wave, upper surface metal level is etched with T-shaped co-planar waveguide input altogether, lower surface metal layer is etched with four parallel with the end of T-shaped co-planar waveguide input altogether respectively rectangular radiation gaps, be respectively the first rectangular radiation gap, second rectangular radiation gap, 3rd rectangular radiation gap, 4th rectangular radiation gap, described first rectangular radiation gap, 3rd rectangular radiation gap lays respectively at the both sides up and down of central hexagonal via-hole array, second rectangular radiation gap, 4th rectangular radiation gap lays respectively at the left and right sides of central hexagonal via-hole array, described T-shaped altogether co-planar waveguide input strides across the first rectangular radiation 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 1/3 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
310mode field distributes, and utilizes the lower order resonance pattern of central hexagonal via-hole array to hexagon substrate integrated wave-guide cavity wave inside to suppress, and plays the effect suppressing interference mode of resonance, also can better encourage TM
310mode field distributes, thus the homophase feed realized four rectangular radiation gaps parallel to each other, and the present invention adopts hexagon substrate integrated wave-guide cavity wave, it has circular cavity high q-factor and rectangular cavities composite design feature flexibly concurrently, can using this hexagon chip integrated waveguide slot antenna as antenna element, realizing arranges flexibly with adjacent cells combines, thus reduce the area of aerial array, in addition, this hexagon chip integrated waveguide slot antenna can adopt ripe PCB technology manufacture, there is cost low, precision is high, reproducible, easy processing, the feature of easy Planar integration, mass production manufacture can be realized.
Accompanying drawing explanation
Fig. 1 is the structural representation of hexagon chip integrated waveguide slot antenna of the present invention;
Fig. 2 is the end view of hexagon chip integrated waveguide slot antenna of the present invention;
Fig. 3 is the physical dimension schematic diagram of hexagon chip integrated waveguide slot antenna of the present invention;
Fig. 4 is hexagon chip integrated waveguide slot antenna of the present invention TM in 22GHz place hexagon substrate integrated wave-guide cavity wave
310mode electric field distributed simulation figure;
Fig. 5 is the input reflection coefficient test result of hexagon chip integrated waveguide slot antenna of the present invention;
Fig. 6 be hexagon chip integrated waveguide slot antenna of the present invention in E face, 22GHz 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, central hexagonal via-hole array 4, hexagon substrate integrated wave-guide cavity wave 5, T-shaped be rectangular radiation gap 8, co-planar waveguide input 6, first rectangular radiation gap 7, second, the 3rd rectangular radiation gap 9, the 4th rectangular radiation gap 10 altogether.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
As Fig. 1, shown in 2, this hexagon chip integrated waveguide slot antenna, 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 peripheral metal via-hole array through medium substrate 1, described peripheral metal via-hole array and upper surface metal level 2, lower surface metal layer 3 surrounds a hexagon substrate integrated wave-guide cavity wave 5 jointly, the central hexagonal via-hole array 4 of multiple plated-through hole composition is provided with at the center of hexagon substrate integrated wave-guide cavity wave 5, upper surface metal level 2 is etched with T-shaped co-planar waveguide input 6 altogether, lower surface metal layer 3 is etched with four parallel with the end of T-shaped co-planar waveguide input 6 altogether respectively rectangular radiation gaps, be respectively the first rectangular radiation gap 7, second rectangular radiation gap 8, 3rd rectangular radiation gap 9, 4th rectangular radiation gap 10, described first rectangular radiation gap 7, 3rd rectangular radiation gap 9 lays respectively at the both sides up and down of central hexagonal via-hole array 4, second rectangular radiation gap 8, 4th rectangular radiation gap 10 lays respectively at the left and right sides of central hexagonal via-hole array 4, described T-shaped altogether co-planar waveguide input 6 strides across the first rectangular radiation gap 7, 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 1/3 of datum line distance to the distance between datum line, described datum line is parallel with the first rectangular radiation gap 7 and cross the center being positioned at plated-through hole below the first rectangular radiation gap 7.By being provided with the central hexagonal via-hole array 4 of multiple plated-through hole composition at the center of hexagon substrate integrated wave-guide cavity wave 5, upper surface metal level 2 is etched with T-shaped co-planar waveguide input 6 altogether, lower surface metal layer 3 is etched with four parallel with the end of T-shaped co-planar waveguide input 6 altogether respectively rectangular radiation gaps, be respectively the first rectangular radiation gap 7, second rectangular radiation gap 8, 3rd rectangular radiation gap 9, 4th rectangular radiation gap 10, described first rectangular radiation gap 7, 3rd rectangular radiation gap 9 lays respectively at the both sides up and down of central hexagonal via-hole array 4, second rectangular radiation gap 8, 4th rectangular radiation gap 10 lays respectively at the left and right sides of central hexagonal via-hole array 4, described T-shaped altogether co-planar waveguide input 6 strides across the first rectangular radiation gap 7, 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 1/3 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
310mode field distributes, and utilizes the lower order resonance pattern of central hexagonal via-hole array 4 pairs of hexagon substrate integrated wave-guide cavity wave 5 inside to suppress, and plays the effect suppressing interference mode of resonance, also can better encourage TM
310mode field distributes, thus the homophase feed realized four rectangular radiation gaps parallel to each other, and the present invention adopts hexagon substrate integrated wave-guide cavity wave 5, it has circular cavity high q-factor and rectangular cavities composite design feature flexibly concurrently, can using this hexagon chip integrated waveguide slot antenna as antenna element, realizing arranges flexibly with adjacent cells combines, thus reduce the area of aerial array, in addition, this hexagon chip integrated waveguide slot antenna can adopt ripe PCB technology manufacture, there is cost low, precision is high, reproducible, easy processing, the feature of easy Planar integration, mass production manufacture can be realized.
In the above-described embodiment, in order to make the suppression of central hexagonal via-hole array 4 disturb the effect of mode of resonance to reach best, the circumradius of described central hexagonal via-hole array 4 is 1/3 of the circumradius of hexagon substrate integrated wave-guide cavity wave 5.
The height of described hexagon substrate integrated wave-guide cavity wave 5 is 1/27th 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 width in described first rectangular radiation gap 8, rectangular radiation gap 7, second, the 3rd rectangular radiation gap 9, the 4th rectangular radiation gap 10 is all identical with gap length.Make the first rectangular radiation gap 8, rectangular radiation gap 7, second, the 3rd rectangular radiation gap 9, the 4th rectangular radiation gap 10 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
310mode field distribution homophase feed, can improve the gain in Antenna Operation bandwidth.
Embodiment
In this embodiment, Antenna Operation is in K-band, and center operating frequency is 22GHz, 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=5.3mm, Wms=1.5mm, Lcpw1=4.15mm, Lcpw2=1mm, Gcpw=0.5mm, Ls=4.2mm, Ws=0.6mm, Os=1.4mm, Dv=1mm, Pv=1.4mm, Ov=1.15mm.
Antenna at center operating frequency 22GHz place, TM in hexagon substrate integrated wave-guide cavity wave 5
310mode electric field distributed simulation result as shown in Figure 4, as can be seen from the figure now the first rectangular radiation gap 8, rectangular radiation gap 7, second, the 3rd rectangular radiation gap 9, the 4th rectangular radiation gap 10 homophase feed; As shown in Figure 5 ,-10dB relative bandwidth is 0.88% 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 22GHz place, maximum gain test result be 11.82dBi, 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 49 ° and 40 °.
Claims (5)
1. hexagon chip integrated waveguide slot antenna, 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 upper surface metal level (2) is arranged on the upper surface of medium substrate (1), described lower surface metal layer (3) is arranged on the lower surface of medium substrate (1), described medium substrate (1) is provided with the peripheral metal via-hole array through medium substrate (1), described peripheral metal via-hole array 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: the central hexagonal via-hole array (4) being provided with multiple plated-through hole composition at the center of hexagon substrate integrated wave-guide cavity wave (5), upper surface metal level (2) is etched with T-shaped co-planar waveguide input (6) altogether, lower surface metal layer (3) is etched with four parallel with the end of T-shaped co-planar waveguide input (6) altogether respectively rectangular radiation gaps, be respectively the first rectangular radiation gap (7), second rectangular radiation gap (8), 3rd rectangular radiation gap (9), 4th rectangular radiation gap (10), described first rectangular radiation gap (7), 3rd rectangular radiation gap (9) lays respectively at the both sides up and down of central hexagonal via-hole array (4), second rectangular radiation gap (8), 4th rectangular radiation gap (10) lays respectively at the left and right sides of central hexagonal via-hole array (4), described T-shaped altogether co-planar waveguide input (6) strides across the first rectangular radiation gap (7), 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 1/3 of datum line distance to the distance between datum line, described datum line is parallel with the first rectangular radiation gap (7) and cross the center of plated-through hole being positioned at the first below, rectangular radiation gap (7), 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 respectively arranged with in the both sides of the T-shaped end of co-planar waveguide input (6) altogether, and the first rectangular gap end of T-shaped co-planar waveguide input (6) either side altogether is connected with the second rectangular gap head end is vertical.
2. hexagon chip integrated waveguide slot antenna as claimed in claim 1, is characterized in that: the circumradius of described central hexagonal via-hole array (4) is 1/3 of the circumradius of hexagon substrate integrated wave-guide cavity wave (5).
3. hexagon chip integrated waveguide slot antenna as claimed in claim 2, is characterized in that: the height of described hexagon substrate integrated wave-guide cavity wave (5) is 1/27th of the corresponding vacuum wavelength of center of antenna operating frequency.
4. according to the hexagon chip integrated waveguide slot antenna in claims 1 to 3 described in any one claim, it is characterized in that: the gap width in described first rectangular radiation gap (7), the second rectangular radiation gap (8), the 3rd rectangular radiation gap (9), the 4th rectangular radiation gap (10) is all identical with gap length.
5. hexagon chip integrated waveguide slot antenna as claimed in claim 4, is characterized in that: described medium substrate (1) adopts relative dielectric constant to be 2.2, and thickness is Rogers 5880 dielectric-slab of 0.508mm.
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| CN201310478610.8A CN103531913B (en) | 2013-10-14 | 2013-10-14 | Hexagonal substrate integrated waveguide slot antenna |
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| CN201310478610.8A CN103531913B (en) | 2013-10-14 | 2013-10-14 | Hexagonal substrate integrated waveguide slot antenna |
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| CN103531913A CN103531913A (en) | 2014-01-22 |
| CN103531913B true CN103531913B (en) | 2015-06-17 |
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| CN103762420B (en) * | 2014-02-25 | 2016-08-17 | 中国工程物理研究院电子工程研究所 | A kind of THz wave back cavity type sheet carries antenna |
| CN104733846A (en) * | 2015-03-24 | 2015-06-24 | 江苏物联网研究发展中心 | Small UHF meander-line dipole anti-metallic RFID label antenna |
| CN109659680B (en) * | 2018-12-11 | 2023-11-24 | 华南理工大学 | Dual-frequency dual-polarized antenna based on substrate integrated waveguide |
| CN110212281B (en) * | 2019-04-19 | 2020-10-27 | 宁波大学 | RFID anti-metal label antenna based on SIW structure |
| CN110346414B (en) * | 2019-07-15 | 2021-10-08 | 西南大学 | Humidity sensor based on substrate integrated waveguide reentry type resonant cavity |
| CN110620295B (en) * | 2019-09-05 | 2022-06-14 | 南京信息职业技术学院 | Substrate integrated waveguide slot antenna integrating solar cell and circuit module |
| CN111682309B (en) * | 2020-05-29 | 2021-11-23 | 杭州电子科技大学 | Single-layer single-feed back cavity circularly polarized filter antenna |
| CN114725686B (en) * | 2022-05-17 | 2024-03-12 | 安徽大学 | Logarithmic periodic antenna based on half-module rectangular metal waveguide excitation |
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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)
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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 |
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| 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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