CN202275943U - Horizontal polarization orientation planar filtering antenna - Google Patents
Horizontal polarization orientation planar filtering antenna Download PDFInfo
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- CN202275943U CN202275943U CN2011203788812U CN201120378881U CN202275943U CN 202275943 U CN202275943 U CN 202275943U CN 2011203788812 U CN2011203788812 U CN 2011203788812U CN 201120378881 U CN201120378881 U CN 201120378881U CN 202275943 U CN202275943 U CN 202275943U
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Abstract
The utility model discloses a horizontal polarization orientation planar filtering antenna, which is divided into a lower surface metal layer, a media layer and an upper surface metal layer from bottom to top in sequence. A micro-strip line is arranged at one end of the upper surface metal layer and connected with a substrate integrated waveguide (SIW) transmission line through a micro-strip transition line. A gap radiation array is arranged on the upper surface metal layer, the tail end of the SIW transmission line is shorted out, and a coupling window of an SIW perceptual window filter and a resonant cavity are arranged on the SIW transmission line. The horizontal polarization orientation planar filtering antenna is easy to manufacture, high in processing accuracy and especially applicable to large frequency wave bands like a Ku wave band.
Description
Technical field
The utility model belongs to communication technology application, is specifically related to a kind of horizontal polarization directional plane filter antenna.
Background technology
In recent years, wireless communication technology has obtained fast development, and has obtained extensive use.Antenna is the critical component of wireless communication system, and directional radiation antenna is in certain angle of radiation, to have higher radiation gain, can satisfy the special radiation requirement of some wireless communication systems.Modern Communication System requires low cost, is prone to make, be easy to and the integrated antenna of other microwave radio planar circuits.LF communication has tended to saturated at present, so high band, easy making, antenna easy of integration become one of new research focus.
Common radiating doublet, the gain of single radiating element is limited, for improving radiation gain, can a plurality of radiating elements be formed array, but the radiating element number in the same array is many more, and feeding network is just more complicated.Along with the raising of frequency, such as at the Ku wave band, problem such as complicated feeding network can bring loss big again, and parasitic radiation is strong.
The utility model content
Utility model purpose: to the problem and shortage of above-mentioned existing existence; The purpose of the utility model provides a kind of horizontal polarization directional plane filter antenna, and this antenna is easy to make, machining accuracy is high, at upper frequency; For example Ku wave band (12.4GHz-18GHz) is especially suitable.
Technical scheme: for realizing above-mentioned utility model purpose; The technical scheme that the utility model adopts is a kind of horizontal polarization directional plane filter antenna (hereinafter to be referred as " filter antenna "); Radiant section adopts SIW (Substrate Integrated Waveguide; Substrate integration wave-guide) the single face slit is as gap radiation unit (hereinafter to be referred as " radiating element "); Form orientation, a plurality of single faces slit is combined to form gap radiation array (hereinafter to be referred as " radiating curtain "), in order to improve the aerial radiation gain.The filter segment of filter antenna adopts SIW perception window filter (hereinafter to be referred as " filter ").Filter antenna has good inhibition effect for the working band external signal, and having only could excitation antenna through the signal of filter.Filter antenna based on SIW technology has planar structure, can adopt the PCB technology of standard to make, be prone to realize, easy of integration, precision is high, cost is low, especially at high band, Ku wave band for example, can effectively solve circuit size little, make difficult problem.
Horizontal polarization directional plane filter antenna is a three-decker, and the centre is a dielectric layer, and the front is the upper surface metal level, and the back side is lower surface metal layer, and profile is a rectangle; End at the upper surface metal level is connected with microstrip line, and microstrip line is connected with the SIW transmission line through little band transition line; The SIW transmission line is made up of two rows plated-through hole between certain distance (SIW transmission line width), upper surface metal level and lower surface metal layer, that pass dielectric layer; On the SIW transmission line, be provided with the coupling window resonant cavity of the SIW perception window filter that constitutes by plated-through hole; Behind the SIW perception window filter is radiating element; Radiating element alternately distributes along the center line both sides of this filter antenna; In the end after radiating element, be provided with the plated-through hole of upper and lower surface metal interlayer, with the short circuit of SIW transmission line.
Beneficial effect: the filter of the utility model SIW technology and the co-design of radiating curtain, filter and radiating curtain are integrated among the same SIW, design horizontal polarization directional plane filter antenna.The SIW loss is little, parasitic radiation is extremely low, be planar structure, be easy to adopt Standard PC B processes, whole filter antenna is simple in structure, be easy to adopt Standard PC B processes, be prone to and other microwave radio circuit integrated.The horizontal polarization directional plane filter antenna that adopts PCB technology to make, machining accuracy is high, at high band, Ku wave band for example, can effectively solve circuit size little, make difficult problem, simultaneously processing cost low, be easy to produce in batches.
Filter and radiating curtain collaborative work, having only could the excitation radiation array through the signal of filter.SIW perception window filter is integrated in the SIW circuit as radio frequency front-end filter and radiating curtain, can avoid common cable to connect the loss that brings.
At high band, for example in the Ku frequency range, feeding network loss on this frequency range of open line style is bigger, and brings bigger parasitic radiation, influences antenna performance, and is little based on the filter antenna loss of SIW art designs, a little less than the parasitic radiation; Radiating element need not to add other power distributing networks when forming radiating curtain, simplified design procedure, and is easy to make, loss is lower.
Said radiating curtain is a SIW single face longitudinal slot array, has the horizontal polarization directional radiation properties, and whole filter antenna has also kept the horizontal polarization directional radiation properties.Simultaneously, filter antenna can well the outer spurious signal of filtering working band.
Horizontal polarization directional plane filter antenna is a kind of flat plane antenna, and when forming multiple-input and multiple-output (MIMO) array, a plurality of filter antennas can be integrated on the same medium substrate (being dielectric layer), can guarantee the consistency of whole array.
Description of drawings
Fig. 1 (a) is a SIW single face longitudinal slot array antenna upper surface metal-layer structure sketch map;
Fig. 1 (b) is a SIW single face longitudinal slot array antenna lower surface metal layer structural representation;
Fig. 2 (a) is a horizontal polarization directional plane filter antenna upper surface metal-layer structure sketch map;
Fig. 2 (b) is a horizontal polarization directional plane filter antenna lower surface metal layer structural representation;
Fig. 3 is for being operated in 14.4GHz neighbouring SIW single face longitudinal slot array antenna and horizontal polarization directional plane filter antenna input reflection coefficient test result among the embodiment;
Fig. 4 is horizontal polarization directional plane filter antenna E face and H surface radiation directional diagram test result on 14.4GHz among the embodiment.
Among the figure, 1. upper surface metal level, 2. lower surface metal layer, 3. microstrip line, 4. little band transition line, 5. plated-through hole, 6.SIW surface longitudinal slit, 7.SIW perception window filter coupling window, 8.SIW perception window filter resonant cavity.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment; 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 the utility model scope; After having read the utility model, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the utility model.
Horizontal polarization directional plane filter antenna is with SIW filter and SIW single side radiation gap array co-design, is integrated in upward realization of a SIW.Filter antenna among the embodiment is operated in the Ku wave band, and radiant section is formed radiating curtain by eight SIW upper surface slits (being radiating element), and each gap width, length are identical, alternately distributes along the center line both sides of this filter antenna; Among the embodiment, filter segment adopts SIW three rank perception window filter.
Among the embodiment, all adopting characteristic impedance like the antenna among Fig. 1 and Fig. 2 is that 50 ohm microstrip are as feed port.Among Fig. 1; Connect through little band transition line between 50 ohm microstrip input ports and the SIW transmission line, the SIW transmission line is to be made up of at a distance of plated-through hole certain distance (width of SIW transmission line), between upper surface metal level and the lower surface metal layer, that pass dielectric layer two rows; Carving gap array on the upper surface metal of SIW transmission line, gap array forms directed radiation; The end of SIW transmission line adopts row's plated-through hole to realize short circuit.Among Fig. 2; Connect through little band transition line between 50 ohm microstrip input ports and the SIW transmission line, the SIW transmission line is to be made up of at a distance of plated-through hole certain distance (width of SIW transmission line), between upper surface metal level and the lower surface metal layer, that pass dielectric layer two rows; On the SIW transmission line, the coupling window and the SIW perception window filter resonant cavity of the SIW perception window filter that is made up of plated-through hole arranged; Carving gap array (radiating curtain) on the SIW transmission line upper surface metal after the SIW perception window filter; The end of SIW transmission line adopts row's plated-through hole to realize short circuit.
Filter antenna among Fig. 2 has horizontal polarization, directional radiation properties.
According to Fig. 1 and Fig. 2 structure fabrication be operated in the Ku wave band horizontal polarization directional plane filter antenna of 14.4GHz.Antenna adopts PCB technology to be produced on the medium substrate.It is that the dielectric constant of 1mm is 2.55 Taconic (Tai Kangnike) that medium substrate has adopted thickness.Embodiment makes on above-mentioned medium substrate by following size:
Be operated near the SIW single face slot array antenna of 14.4GHz among the embodiment: micro belt line width is 2.8mm; Little band transition line length is 1.5mm; Little some gradual change live width end width is 4mm; The plated-through hole diameter is 0.6mm; The adjacent metal through-hole spacing is 1mm; SIW transmission line width is 9.4mm; The SIW gap length is 7.9mm; Adjacent slits central vertical distance is 9.62mm; Gap width is 0.1mm; Slit misalignment SIW distance between center line is 0.28mm; First centre-to-centre spacing SIW top, slit vertical range is 9.62mm, and the terminal vertical range of last slit centre-to-centre spacing SIW is 4.81mm.
Be operated near the horizontal polarization directional plane filter antenna of 14.4GHz among the embodiment: micro belt line width is 2.8mm; Little band transition line length is 1.5mm; Little some gradual change live width end width is 4mm; The plated-through hole diameter is 0.6mm; The adjacent metal through-hole spacing is 1mm; SIW transmission line width is 9.4mm; Four coupling window width of SIW perception window filter are respectively 5.36mm, 3.57mm, 3.57mm, 5.36mm; Three cavity lengths of SIW perception window filter are for Wei not 8.41mm, 9.26mm, 8.41mm; The SIW gap length is 7.88mm; Adjacent slits central vertical distance is 9.58mm; Gap width is 0.1mm; Slit misalignment SIW distance between center line is 0.28mm; Last resonant cavity vertical range of first slit centre-to-centre spacing SIW perception window filter is 14.58mm, and the terminal vertical range of last slit centre-to-centre spacing SIW is 4.79mm.
(" antenna " among the figure shown in the dotted line is SIW single face longitudinal slot array antenna to Fig. 3 in order to be operated near SIW single face longitudinal slot array antenna of 14.4GHz and horizontal polarization directional plane filter antenna input reflection coefficient test result among the embodiment; " filter antenna " shown in the solid line is horizontal polarization directional plane filter antenna), can see the filter antenna outer unwanted signal of filtering band effectively; Fig. 4 is horizontal polarization directional plane filter antenna E face and H surface radiation directional diagram test result on 14.4GHz among the embodiment, can see that filter antenna has the horizontal polarization directional radiation properties, has effectively kept the radiation characteristic of radiating curtain.
Claims (6)
1. a horizontal polarization directional plane filter antenna is followed successively by lower surface metal layer, dielectric layer and upper surface metal level from top to bottom; End at said upper surface metal level is provided with microstrip line; Said microstrip line is connected with the SIW transmission line through little band transition line; Said upper surface metal level is provided with the gap radiation array; The terminal short circuit of said SIW transmission line is characterized in that: said SIW transmission line is provided with the coupling window resonant cavity of SIW perception window filter.
2. according to the said horizontal polarization directional plane of claim 1 filter antenna, it is characterized in that: said SIW transmission line is between said upper surface metal level and the lower surface metal layer and two row's plated-through holes that pass dielectric layer.
3. according to the said horizontal polarization directional plane of claim 1 filter antenna, it is characterized in that: said gap radiation array is a plurality of gap radiations unit.
4. according to the said horizontal polarization directional plane of claim 3 filter antenna, it is characterized in that: said gap radiation unit alternately distributes along the center line both sides of said upper surface metal level.
5. according to claim 3 or 4 said horizontal polarization directional plane filter antennas, it is characterized in that: the quantity of said gap radiation unit is 8.
6. according to the said horizontal polarization directional plane of claim 1 filter antenna, it is characterized in that: the structure of said short circuit is the row's plated-through hole that is located at the SIW line end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203788812U CN202275943U (en) | 2011-10-09 | 2011-10-09 | Horizontal polarization orientation planar filtering antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203788812U CN202275943U (en) | 2011-10-09 | 2011-10-09 | Horizontal polarization orientation planar filtering antenna |
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| Publication Number | Publication Date |
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| CN202275943U true CN202275943U (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203788812U Expired - Fee Related CN202275943U (en) | 2011-10-09 | 2011-10-09 | Horizontal polarization orientation planar filtering antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022106A (en) * | 2013-02-28 | 2014-09-03 | 日月光半导体制造股份有限公司 | Semiconductor package having waveguide antenna and manufacturing method thereof |
| CN104577349A (en) * | 2015-01-30 | 2015-04-29 | 南通大学 | High out-of-band rejection cavity filter antenna array |
| CN108417995A (en) * | 2018-05-11 | 2018-08-17 | 深圳市信维通信股份有限公司 | Antenna element and array antenna for 5G mobile communication |
| CN111916910A (en) * | 2020-09-03 | 2020-11-10 | 上海无线电设备研究所 | Substrate integrated waveguide slot antenna |
| US11817630B2 (en) | 2021-09-17 | 2023-11-14 | City University Of Hong Kong | Substrate integrated waveguide-fed Fabry-Perot cavity filtering wideband millimeter wave antenna |
| US11874515B2 (en) | 2022-01-28 | 2024-01-16 | Advanced Semiconductor Engineering, Inc. | Electronic device |
-
2011
- 2011-10-09 CN CN2011203788812U patent/CN202275943U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022106A (en) * | 2013-02-28 | 2014-09-03 | 日月光半导体制造股份有限公司 | Semiconductor package having waveguide antenna and manufacturing method thereof |
| US9978688B2 (en) | 2013-02-28 | 2018-05-22 | Advanced Semiconductor Engineering, Inc. | Semiconductor package having a waveguide antenna and manufacturing method thereof |
| CN104577349A (en) * | 2015-01-30 | 2015-04-29 | 南通大学 | High out-of-band rejection cavity filter antenna array |
| CN104577349B (en) * | 2015-01-30 | 2017-08-01 | 中天宽带技术有限公司 | High out-of-side rejection cavity filter antenna array |
| CN108417995A (en) * | 2018-05-11 | 2018-08-17 | 深圳市信维通信股份有限公司 | Antenna element and array antenna for 5G mobile communication |
| CN108417995B (en) * | 2018-05-11 | 2023-09-12 | 深圳市信维通信股份有限公司 | Antenna unit and array antenna for 5G mobile communication |
| CN111916910A (en) * | 2020-09-03 | 2020-11-10 | 上海无线电设备研究所 | Substrate integrated waveguide slot antenna |
| US11817630B2 (en) | 2021-09-17 | 2023-11-14 | City University Of Hong Kong | Substrate integrated waveguide-fed Fabry-Perot cavity filtering wideband millimeter wave antenna |
| US11874515B2 (en) | 2022-01-28 | 2024-01-16 | Advanced Semiconductor Engineering, Inc. | Electronic device |
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Legal Events
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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 |
Granted publication date: 20120613 Termination date: 20191009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |