CN201956463U - Millimeter-wave wave filtering antenna with substrate integrated waveguide - Google Patents
Millimeter-wave wave filtering antenna with substrate integrated waveguide Download PDFInfo
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- CN201956463U CN201956463U CN2010206772915U CN201020677291U CN201956463U CN 201956463 U CN201956463 U CN 201956463U CN 2010206772915 U CN2010206772915 U CN 2010206772915U CN 201020677291 U CN201020677291 U CN 201020677291U CN 201956463 U CN201956463 U CN 201956463U
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Abstract
The utility model discloses a millimeter-wave wave filtering antenna with a substrate integrated waveguide, which comprises a medium substrate provided with a substrate integrated waveguide. A microstrip feed point is arranged at a port of the medium substrate; a microstrip asymptotic line is arranged between the microstrip feed point and the substrate integrated waveguide; a part of the substrate integrated waveguide approaching the microstrip feed point is a wave filter; a part of the substrate integrated waveguide approaching a terminal is provided with a slot radiating array; and the terminal of the substrate integrated waveguide is shorted out. In the utility model, the wave filter and the slot radiating array are integrated on one substrate integrated waveguide, and the out-off-band stray signals can be restrained better. The millimeter-wave wave filtering antenna with the substrate integrated waveguide is simple in structure, low in cost and easy for batch production, and can be manufactured by using a mature standard industrial process completely. Based on an enclosed structure of the integrated waveguide, the radiation is small, the insulation and interference resistance capabilities are strong, and the integration of the millimeter-wave wave filtering antenna and other plane microwave radio-frequency circuits is easy.
Description
Technical field
The utility model relates to a kind of antenna, especially a kind of millimeter-wave substrate integrated waveguide slot array antenna.
Background technology
In recent years, wireless communication technology has obtained fast-developing and has obtained extensive use.Increasing communication system requires low cost, easily makes, is easy to and the integrated antenna of other microwave radio planar circuit.At millimeter wave frequency band, common antenna form, as unipole antenna, dipole antenna, size is little, loss is big, simultaneously common feed circuit form, as microstrip line, the printing parallel wire, size is little, loss is big, parasitic radiation is strong.Select suitable radiating element form, suitable feed circuit, and adopt certain mode to optimize antenna performance concerning the communication system of millimeter wave band, significant, have actual application value.
The utility model content
The utility model purpose: at the problem and shortage of above-mentioned existing existence, the purpose of this utility model provides the millimeter-wave substrate integrated waveguide filter antenna that a kind of loss is little, parasitic radiation is extremely low.
Technical scheme: for realizing above-mentioned utility model purpose, the technical solution adopted in the utility model is: a kind of millimeter-wave substrate integrated waveguide filter antenna, comprise the dielectric substrate that is provided with substrate integration wave-guide, the port of described dielectric substrate is provided with microstrip-fed point, is provided with little band transition line between microstrip-fed point and the substrate integration wave-guide; Described substrate integration wave-guide is a filter near the part of microstrip-fed point, and substrate integration wave-guide is provided with the gap radiation array near the part of terminal; The substrate integration wave-guide terminal short circuit.Filter and gap radiation array can separately design again and synthesize, according to the type of bandwidth requirement designing filter and and exponent number, require to design the number and the form of gap radiation array according to gain and radiation directivity.
In order to optimize filter and the performance that is provided with the substrate integration wave-guide of radiating slot array, described filter is different with the substrate integration wave-guide width that is provided with the radiating slot array, and this can introduce a discontinuity surface, should take into account and weaken the reflection that discontinuity surface is introduced as far as possible.
Described filter can be three rank perception window filters, and the gap radiation array can be along the vertical radiating slot that is provided with of the single face of described substrate integration wave-guide.
Described filter can be three rank perception window filters, and the gap radiation array can be two radiating slots that the single face along described substrate integration wave-guide vertically sets gradually.
The structure of described short circuit can be the row's plated-through hole that is located at the substrate integration wave-guide terminal.
Beneficial effect: the utility model is integrated in filter and gap radiation array on the substrate integration wave-guide, can well the outer spurious signal of inhibition zone.Filter in the utility model and gap radiation array design are flexible, can with substrate integrated filter and chip integrated waveguide slot radiating curtain separately design synthesize again, according to the type of bandwidth requirement designing filter and and exponent number, require to design the number and the form of gap radiation array according to gain and radiation directivity.The utility model millimeter-wave substrate integrated waveguide filter antenna both can be used as independently antenna use, also can form multiple-input and multiple-output (MIMO) antenna system.The utility model is simple in structure, and ripe standard industry technology can be all used in making, and cost is low, produces in batches easily; Based on the enclosed construction of substrate integration wave-guide, thus radiation is little, isolation and antijamming capability strong, easily and other plane microwave radio circuit integrated.
Description of drawings
Fig. 1 is the structure chart of embodiment 1;
Fig. 2 is the antenna of embodiment 1 and the unidimensional gap radiation array antenna input reflection coefficient test result that does not have integrated filter;
Fig. 3 is that the antenna of embodiment 1 is in the E of 37.5GHz face and H surface radiation directional diagram test result;
Fig. 4 is the structure chart of embodiment 2;
Fig. 5 is the antenna of embodiment 2 and the unidimensional gap radiation array antenna input reflection coefficient test result that does not have integrated filter;
Fig. 6 is that the antenna of embodiment 2 is in the E of 37.5GHz face and H surface radiation directional diagram test result.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only be used to the utility model is described and be not used in the restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present utility model.
As shown in Figure 1, substrate integrated filter 4 is three rank perception window filters, and chip integrated waveguide slot radiating curtain 5 is along the vertical radiating slot that is provided with of the single face of described substrate integration wave-guide; Connect by little band transition line 3 between microstrip-fed point 2 and the substrate integration wave-guide, the first of substrate integration wave-guide circuit is three rank perception window filters 4, and second portion is a gap radiation array 5, the substrate integration wave-guide terminal short circuit; The antenna of present embodiment is operated in the 37-38GHz frequency range.Whole antenna feeder adopts planar circuit technology to be produced on the dielectric substrate 1.It is that the dielectric constant of 0.254mm is that 2.2 Rogers (Rogers) 5008 is as dielectric-slab that dielectric substrate 1 adopts thickness.In Fig. 1, ms_W=0.78mm; Taper_W=1.3mm; Taper_L=1.2mm; SIW_W1=5mm; FL0=3.25mm; FL1=2.95mm; FL2=3.25mm; FW1=2.45mm; FW2=1.65mm; SIW_W2=4mm; D1=2.5mm; D2=0.6mm; Slot_W=0.18mm; Slot_L=3.5mm; X=0.15mm.
Fig. 2 is single slot antenna input reflection coefficient test result of integrated filter among the embodiment 1 and the unidimensional gap radiation element antenna input reflection coefficient test result that does not have integrated filter.Can see that two antenna input reflection coefficients are basic identical less than the bandwidth of operation of-10dB, the filter antenna behind the integrated filter can well disturb by the outer unwanted signal of inhibition zone simultaneously.
Fig. 3 records E face and H surface radiation directional diagram for the antenna of embodiment 1 on 37.5GHz.Integrated filter aft antenna antenna pattern operate as normal.
As shown in Figure 4, substrate integrated filter 4 is three rank perception window filters, and chip integrated waveguide slot radiating curtain 5 is two radiating slots that the single face along described substrate integration wave-guide vertically sets gradually; Connect by little band transition line 3 between microstrip-fed point 2 and the substrate integration wave-guide, the first of substrate integration wave-guide circuit is three rank perception window filters 4, and second portion is a gap radiation array 5, the substrate integration wave-guide terminal short circuit; The antenna of present embodiment is operated in the 37-38GHz frequency range.Whole antenna feeder adopts planar circuit technology to be produced on the dielectric substrate 1.It is that the dielectric constant of 0.254mm is that 2.2 Rogers5008 is as dielectric-slab that dielectric substrate 1 adopts thickness.In Fig. 2, ms_W=0.78mm; Taper_W=1.3mm; Taper_L=1.2mm; SIW_W1=5mm; FL0=3.25mm; FL1=2.95mm; FL2=3.25mm; FW1=2.45mm; FW2=1.65mm; SIW_W2=4mm; D1=2.4mm; D2=0.6mm; Slot_W=0.18mm; Slot_D=0.8mm; Slot_L=3.28mm; X=0.1mm.
Fig. 5 is the double slit crack antenna input reflection coefficient test result of integrated filter among the embodiment 2 and the unidimensional gap radiation array antenna input reflection coefficient test result that does not have integrated filter.As can be seen, two antenna input reflection coefficients are basic identical less than the bandwidth of operation of-10dB, and the filter antenna behind the integrated filter can well disturb by the outer unwanted signal of inhibition zone simultaneously.
Fig. 6 records E face and H surface radiation directional diagram for the antenna of embodiment 2 on 37.5GHz.Integrated filter aft antenna antenna pattern operate as normal.
In Fig. 3 and Fig. 6 because the gain maximum that different antenna at different faces, records may be different,, maximum is all normalized to zero for more convenient, be drawn as figure after, shape relatively.
Claims (5)
1. millimeter-wave substrate integrated waveguide filter antenna, comprise the dielectric substrate (1) that is provided with substrate integration wave-guide, it is characterized in that: the port of described dielectric substrate is provided with microstrip-fed point (2), is provided with little band transition line (3) between microstrip-fed point (2) and the substrate integration wave-guide; Described substrate integration wave-guide is filter (4) near the part of microstrip-fed point (2), and substrate integration wave-guide is provided with gap radiation array (5) near the part of terminal; The substrate integration wave-guide terminal short circuit.
2. according to the described millimeter-wave substrate integrated waveguide filter antenna of claim 1, it is characterized in that: described filter (4) is different with the substrate integration wave-guide width that is provided with radiating slot array (5).
3. according to the described millimeter-wave substrate integrated waveguide filter antenna of claim 1, it is characterized in that: described filter (4) is three rank perception window filters, and gap radiation array (5) is along the vertical radiating slot that is provided with of the single face of described substrate integration wave-guide.
4. according to the described millimeter-wave substrate integrated waveguide filter antenna of claim 1, it is characterized in that: described filter (4) is three rank perception window filters, and gap radiation array (5) is two radiating slots that the single face along described substrate integration wave-guide vertically sets gradually.
5. according to the described millimeter-wave substrate integrated waveguide filter antenna of claim 1, it is characterized in that: the structure of described short circuit is the row's plated-through hole that is located at the substrate integration wave-guide terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206772915U CN201956463U (en) | 2010-12-23 | 2010-12-23 | Millimeter-wave wave filtering antenna with substrate integrated waveguide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206772915U CN201956463U (en) | 2010-12-23 | 2010-12-23 | Millimeter-wave wave filtering antenna with substrate integrated waveguide |
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| Publication Number | Publication Date |
|---|---|
| CN201956463U true CN201956463U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206772915U Expired - Fee Related CN201956463U (en) | 2010-12-23 | 2010-12-23 | Millimeter-wave wave filtering antenna with substrate integrated waveguide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110898A (en) * | 2010-12-23 | 2011-06-29 | 东南大学 | Millimeter wave substrate integrated waveguide filtering antenna |
| CN108832291A (en) * | 2018-06-25 | 2018-11-16 | 重庆大学 | A kind of substrate integrated waveguide filtering antenna |
| CN114050407A (en) * | 2021-10-28 | 2022-02-15 | 中国科学院空天信息创新研究院 | Waveguide mode excitation structure, method and application thereof |
-
2010
- 2010-12-23 CN CN2010206772915U patent/CN201956463U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110898A (en) * | 2010-12-23 | 2011-06-29 | 东南大学 | Millimeter wave substrate integrated waveguide filtering antenna |
| CN108832291A (en) * | 2018-06-25 | 2018-11-16 | 重庆大学 | A kind of substrate integrated waveguide filtering antenna |
| CN108832291B (en) * | 2018-06-25 | 2020-05-19 | 重庆大学 | Substrate integrated waveguide filter antenna |
| CN114050407A (en) * | 2021-10-28 | 2022-02-15 | 中国科学院空天信息创新研究院 | Waveguide mode excitation structure, method and application thereof |
| CN114050407B (en) * | 2021-10-28 | 2023-09-26 | 中国科学院空天信息创新研究院 | Waveguide mode excitation structure, method and application thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20181223 |