CN202616409U - Broadband directional microstrip patch antenna - Google Patents
Broadband directional microstrip patch antenna Download PDFInfo
- Publication number
- CN202616409U CN202616409U CN 201220264778 CN201220264778U CN202616409U CN 202616409 U CN202616409 U CN 202616409U CN 201220264778 CN201220264778 CN 201220264778 CN 201220264778 U CN201220264778 U CN 201220264778U CN 202616409 U CN202616409 U CN 202616409U
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- dielectric layer
- feeder line
- paster antenna
- strip paster
- pad
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Abstract
The utility model discloses a broadband directional microstrip patch antenna. The patch antenna is successively provided with, from downward to upward, a first dielectric layer, a microstrip feed line network arranged on the first dielectric layer, a second dielectric layer, a grounding surface disposed in an open gap on the second dielectric layer, a third dielectric layer and a radiation patch array arranged on the third dielectric layer. The broadband directional microstrip patch antenna is simple to process and easy to mount.
Description
Technical field
The utility model belongs to communication technology application, is specifically related to a kind of wideband directional micro-strip paster 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.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, directed radiation, easy making, antenna easy of integration become one of new research focus.
Microband paste can be realized the directed radiation of perpendicular polarization or horizontal polarization, and single microband paste radiation gain is limited, can adopt series feed array or and presents array and improve radiation gain.But micro-strip paster antenna has extremely narrow frequency band, thereby series feed technology is unfavorable for adjusting the downwards bevel beam that the phase place of array element is difficult to realize antenna.
H shape cutler feed structure is the broadening bandwidth effectively, and its feeding network and radiation patch are separated by the slit metal ground plane, and a little less than the feeder line parasitic radiation, cross-polarization levels is low.Parallel connection cutler feed then can be adjusted the phase place of array element flexibly, realizes the downwards bevel beam of antenna.
Existing microstrip patch antenna array adopts sandwich construction more; Feeding network and cracking is filled with dielectric-slab between the ground plane; And foam commonly used or air are as filling with the broadening bandwidth between slit and radiation patch, and this structure has increased machining complexity, is unfavorable for installing and fixing of antenna.
In being applied to occasion such as antenna for base station, antenna is placed in eminence more, in order to strengthen the overlay area signal strength signal intensity, and now modes that adopt mechanical tilts more, this mode has increased the complexity of installing.
The utility model content
The utility model purpose: to the problem and shortage that above-mentioned prior art exists, the purpose of the utility model provides a kind of wideband directional micro-strip paster antenna, processes simple and is easy to and install.
Technical scheme: for realizing above-mentioned utility model purpose; The technical scheme that the utility model adopts is a kind of wideband directional micro-strip paster antenna, is provided with microstrip feed line network, first dielectric layer, metal ground plane, second dielectric layer and radiation patch array from down to up successively.
Further, the slit that has some H shapes on the said metal ground plane.
Further, the back side of said first dielectric layer also connects the metallic reflection plate.Further, the back side of said first dielectric layer links to each other through the spacing nut with the metallic reflection plate.
Further; Said microstrip feed line network comprises the open circuit microstrip feed line; This open circuit microstrip feed line links to each other with first feeder line through first impedance transformer; First feeder line connects second feeder line through second impedance transformer, and second feeder line also connects the 3rd feeder line, and the 3rd feeder line extends to an end of said first dielectric layer; The open circuit microstrip feed line is through cracking to radiation patch array coupling feed.
Further; Also comprise first pad and second pad that are located at first dielectric layer and second dielectric layer, one end; The correspondence position of this first pad, second pad and metal ground plane is provided with the number of metal through hole, and first pad links to each other with metal ground plane through plated-through hole with second pad.
Further, for realizing downwards bevel beam, the tie point of said first feeder line and second impedance transformer departs from the mid point of first feeder line, and the tie point of second feeder line and the 3rd feeder line departs from the mid point of second feeder line.
Further, the material of said first dielectric layer and second dielectric layer is all identical.The preferred Tai Kangnike of said material.More preferably, the dielectric constant of said Tai Kangnike is 2.55.
Beneficial effect: the utility model is based on printing PCB technology; Employing has the microband paste radiating curtain of perpendicular polarization and horizontal polarization directional radiation properties; Through H shape slit parallelly feeding, design perpendicular polarization and horizontal polarization wideband directional micro-strip paster antenna with 15 ° of inclination angles.
The slit is also presented the microband paste array and is the veneer plane structure, and it is 2.55 Taconic (Tai Kangnike) that the used medium layer is dielectric constant, is easy to adopt Standard PC B processes, and machining accuracy is high, cost is low, easy for installation, is easy to produce in batches.
Radiation patch array and microstrip feed network are in different layers, can reduce the fabric swatch area, are easy to group battle array flexibly; The existence of the ground plane that cracks between radiation patch array and the microstrip feed network has increased the isolation between radiation patch array and the microstrip feed network greatly; The effective broadening of mode of H shape cutler feed bandwidth of operation, improved cross-polarization performance; The radiation patch array can separate with microstrip feed network and designs, and design procedure is simple.
The realization respectively of perpendicular polarization directed microstrip paster antenna and horizontal polarization directed microstrip paster antenna has effectively guaranteed polarization diversity; In antenna for base station is used; This antenna is because of having 15 ° of downwards bevel beams; Can avoid the mechanical tilt device is installed and adopt direct suspension or put up fixingly, make install simple and convenient.
At high band, for example in the C frequency range, the wideband directional micro-strip paster antenna of perpendicular polarization and horizontal polarization has a good application prospect.
Description of drawings
Fig. 1 is a perpendicular polarization wideband microband paster antenna overall structure sketch map;
Fig. 2 is each layer plane structural representation of perpendicular polarization wideband microband paster antenna;
Fig. 3 is a horizontal polarization wideband microband paster antenna overall structure sketch map;
Fig. 4 is each layer plane structural representation of horizontal polarization wideband microband paster antenna;
Fig. 5 is for being operated in the input port reflection coefficient test result figure of the perpendicular polarization wideband microband paster antenna of 6-6.5GHz among the embodiment;
Fig. 6 is for being operated in the E face and the H surface radiation directional diagram test result figure of the perpendicular polarization wideband microband paster antenna of 6-6.5GHz among the embodiment;
Fig. 7 is for being operated in the input port reflection coefficient test result figure of the horizontal polarization wideband microband paster antenna of 6-6.5GHz among the embodiment;
Fig. 8 is for being operated in the E face and the H surface radiation directional diagram test result figure of the horizontal polarization wideband microband paster antenna of 6-6.5GHz among the embodiment.
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.
Micro-strip paster antenna in the utility model has perpendicular polarization and horizontal polarization directional radiation properties respectively.
As shown in Figure 1; The radiant section of perpendicular polarization micro-strip paster antenna comprises: first dielectric layer 100 and the radiation patch array 1 that is located at first dielectric layer, 100 upper surfaces, be positioned at first dielectric layer, 100 belows the metal ground plane 2 that has H shape slit 9, be positioned at second dielectric-slab 300 of metal ground plane 2 belows, the back of the body surface of this second dielectric-slab 300 is provided with microstrip feed line network 3.As shown in Figure 2, open circuit microstrip feed line 10 is through the 9 pairs of radiation patch arrays in H shape slit, 1 coupling feed, and this feeding classification is broadening bandwidth of operation and improve cross-polarization performance effectively.Open circuit microstrip feed line 10 intersections are connected with 100 ohm of feeder lines 12 through 1/4th impedance conversion lines 11; Feeder line 12 intersections are connected with 100 ohm of feeder lines 14 through 1/4th impedance conversion lines 13; Tie point departs from the mid point of feeder line 12 to introduce the homogeneous phase potential difference between chip unit; Feeder line 14 intersections are connected with 50 ohm microstrip 15; Tie point departs from the mid point of feeder line 14 to introduce the homogeneous phase potential difference between chip unit, and the phase difference that above-mentioned two places introduce makes the phase place of chip unit be the equal difference distribution, thereby has realized 15 ° downwards bevel beam angle.Feeder line 15 extends to dielectric layer one end, and pad 16 is connected with metal ground plane 2 through ground metallization through hole 17, and external 50 ohm of sub-miniature A connectors (not shown) can constitute coupling with feeder line 15 and pad 16 and be connected.The radiant section of antenna is connected to reduce the backward radiation of antenna through the spacing nut with metallic reflection plate 4.
As shown in Figure 3; The radiant section of horizontal polarization micro-strip paster antenna comprises: the 3rd dielectric layer 500 and the radiation patch array 5 that is located at the 3rd dielectric layer 500 upper surfaces, the metal ground plane 6 that has H shape slit 18 that is positioned at the 3rd dielectric layer 500 belows, the back of the body surface that is positioned at the 4th dielectric-slab 700, the four dielectric-slabs 300 of metal ground plane 6 belows are provided with microstrip feed line network 7.As shown in Figure 4, open circuit microstrip feed line 19 is through the 18 pairs of chip units couplings in H shape slit feed, and this feeding classification is broadening bandwidth of operation and improve cross-polarization performance effectively.Feeder line 19 intersections are connected with 100 ohm of feeder lines 21 through 1/4th impedance conversion lines 20; Feeder line 21 intersections are connected with 100 ohm of feeder lines 23 through 1/4th impedance conversion lines 22; Tie point departs from the mid point of feeder line 23 to introduce the homogeneous phase potential difference between chip unit; Feeder line 23 intersections are connected with 50 ohm microstrip 24; Tie point departs from the mid point of feeder line 23 to introduce the homogeneous phase potential difference between chip unit, and the phase difference that above-mentioned two places introduce makes the phase place between chip unit be the equal difference distribution, thereby has realized 15 ° downwards bevel beam angle.Feeder line 24 extends to dielectric layer one end, and pad 25 is connected with metal ground plate 6 through ground metallization through hole 26, and external 50 ohm of sub-miniature A connectors (not shown) can constitute coupling with feeder line 24 and pad 25 and be connected.The radiant section of antenna is connected to reduce the backward radiation of antenna through the spacing nut with metallic reflection plate 8.
Embodiment 1: with the perpendicular polarization wideband microband paster antenna at 15 ° of inclination angles
Antenna structure is as shown in Figure 1, and each layer structure is as shown in Figure 2.The antenna overall size of band metallic reflection plate 4 is 105mm * 59mm * 15.5mm (L * W * H).Thickness of dielectric layers between radiation patch array 1 and the metal ground plane 2 is 2mm, and the thickness of dielectric layers between metal ground plane 2 and the microstrip feed line network 3 is 1mm, is 2.55 Taconic (Tai Kangnike) as the dielectric constant of the dielectric substrate of dielectric layer.The chip unit horizontal spacing is 25mm, and longitudinal pitch is 24mm.Have the H shape slit 9 of 5.5mm * 5mm on the metal ground plane 2, stitching wide is 1mm.Open circuit microstrip line 10 longitudinal sizes are 9.5mm, and it is 25mm that lateral dimension is equal to the chip unit horizontal spacing, and live width is 1mm.The size of 1/4th impedance conversion lines 11,1/4th impedance conversion lines 13 is respectively 7.5mm * 1.8mm and 8.2mm * 1.5mm.100 ohm microstrip 12 are of a size of 8mm * 0.73mm; The length that the tie point of 1/4th impedance conversion lines 13 and 100 ohm microstrip 12 departs from 100 ohm microstrip, 12 mid points is 2mm, and the length that the tie point of 50 ohm microstrip 15 and feeder line 14 departs from feeder line 14 mid points is 4mm.Pad 16 is of a size of 8mm * 6mm, and the distance of pad edge distance 50 ohm microstrip 15 is 2mm, and the diameter of plated-through hole 17 is 0.8mm.The actual measurement antenna works in 6-6.5GHz, and input reflection coefficient and directional diagram test result are shown in Fig. 5, Fig. 6 respectively, and wherein, antenna gain gains all greater than 12dB in working frequency range.
Embodiment 2: with the horizontal polarization wideband microband paster antenna at 15 ° of inclination angles
Antenna structure is as shown in Figure 3, and each layer structure is as shown in Figure 4.The antenna overall size of band metallic reflection plate 8 is 111mm * 51mm * 15.5mm (L * W * H).Thickness of dielectric layers between radiation patch array 5 and the metal ground plane 6 is 2mm, and the thickness of dielectric layers between metal ground plane 6 and the microstrip feed line network 7 is 1mm, and being dielectric constant as the dielectric substrate of dielectric layer is 2.55 Taconic (Tai Kangnike).The chip unit horizontal spacing is 22mm, and longitudinal pitch is 25mm.Have the H shape slit 18 of 5.5mm * 4.5mm on the metal ground plane 6, stitching wide is 1mm.Open circuit microstrip line 19 lateral dimensions are 9mm, and it is 25mm that longitudinal size is equal to the chip unit longitudinal pitch, and live width is 1mm.The size of 1/4th impedance conversion lines 20,1/4th impedance conversion lines 22 is respectively 7mm * 1.6mm and 7.4mm * 2.1mm.100 ohm microstrip 21 are of a size of 7mm * 0.8mm; The length that the tie point of 1/4th impedance conversion lines 20 and 100 ohm microstrip 19 departs from 100 ohm microstrip, 19 mid points is 2mm, and the length that the tie point of 50 ohm microstrip 24 and feeder line 23 departs from feeder line 23 mid points is 4mm.Pad 25 is of a size of 5mm * 4mm, and the distance of pad edge distance 50 ohm microstrip 24 is 2mm, and the diameter of plated-through hole 26 is 0.8mm.The actual measurement antenna works in 6-6.5GHz, and input reflection coefficient and directional diagram test result are shown in Fig. 7, Fig. 8 respectively, and wherein, antenna gain gains all greater than 12dB in working frequency range.
Claims (10)
1. a wideband directional micro-strip paster antenna is characterized in that: be provided with microstrip feed line network, first dielectric layer, metal ground plane, second dielectric layer and radiation patch array from down to up successively.
2. according to the said wideband directional micro-strip paster antenna of claim 1, it is characterized in that: the slit that has some H shapes on the said metal ground plane.
3. according to the said wideband directional micro-strip paster antenna of claim 1, it is characterized in that: the back side of said first dielectric layer also connects the metallic reflection plate.
4. according to the said wideband directional micro-strip paster antenna of claim 3, it is characterized in that: the back side of said first dielectric layer links to each other through the spacing nut with the metallic reflection plate.
5. according to the said wideband directional micro-strip paster antenna of claim 1; It is characterized in that: said microstrip feed line network comprises the open circuit microstrip feed line; This open circuit microstrip feed line links to each other with first feeder line through first impedance transformer; First feeder line connects second feeder line through second impedance transformer, and second feeder line also connects the 3rd feeder line, and the 3rd feeder line extends to an end of said first dielectric layer; The open circuit microstrip feed line is through cracking to radiation patch array coupling feed.
6. according to the said wideband directional micro-strip paster antenna of claim 1; It is characterized in that: also comprise first pad and second pad that are located at first dielectric layer and second dielectric layer, one end; The correspondence position of this first pad, second pad and metal ground plane is provided with the number of metal through hole, and first pad links to each other with metal ground plane through plated-through hole with second pad.
7. according to the said wideband directional micro-strip paster antenna of claim 5, it is characterized in that: the tie point of said first feeder line and second impedance transformer departs from the mid point of first feeder line, and the tie point of second feeder line and the 3rd feeder line departs from the mid point of second feeder line.
8. according to the said wideband directional micro-strip paster antenna of claim 1, it is characterized in that: the material of said first dielectric layer and second dielectric layer is all identical.
9. said according to Claim 8 wideband directional micro-strip paster antenna is characterized in that: said material is Tai Kangnike.
10. according to the said wideband directional micro-strip paster antenna of claim 9, it is characterized in that: the dielectric constant of said Tai Kangnike is 2.55.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264778 CN202616409U (en) | 2012-06-06 | 2012-06-06 | Broadband directional microstrip patch antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264778 CN202616409U (en) | 2012-06-06 | 2012-06-06 | Broadband directional microstrip patch antenna |
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| CN202616409U true CN202616409U (en) | 2012-12-19 |
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| CN 201220264778 Expired - Fee Related CN202616409U (en) | 2012-06-06 | 2012-06-06 | Broadband directional microstrip patch antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738572A (en) * | 2012-06-06 | 2012-10-17 | 东南大学 | Broadband directional microstrip patch antenna |
| CN104466366A (en) * | 2013-09-14 | 2015-03-25 | 航天信息股份有限公司 | Bidirectional radiation microstrip antenna |
| CN109149068A (en) * | 2018-08-12 | 2019-01-04 | 瑞声科技（南京）有限公司 | Encapsulating antenna system and mobile terminal |
| CN111370857A (en) * | 2020-05-27 | 2020-07-03 | 东南大学 | Antenna based on substrate integrated multi-line feed network |
| CN111509379A (en) * | 2020-04-09 | 2020-08-07 | 山东华箭科工创新科技有限公司 | Double-layer 5G microstrip array antenna |
| CN113131178A (en) * | 2019-12-30 | 2021-07-16 | 杭州海康威视数字技术股份有限公司 | Direction-finding antenna, direction-finding antenna system and electronic equipment |
-
2012
- 2012-06-06 CN CN 201220264778 patent/CN202616409U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738572A (en) * | 2012-06-06 | 2012-10-17 | 东南大学 | Broadband directional microstrip patch antenna |
| CN104466366A (en) * | 2013-09-14 | 2015-03-25 | 航天信息股份有限公司 | Bidirectional radiation microstrip antenna |
| CN109149068A (en) * | 2018-08-12 | 2019-01-04 | 瑞声科技（南京）有限公司 | Encapsulating antenna system and mobile terminal |
| CN109149068B (en) * | 2018-08-12 | 2021-04-02 | 瑞声科技（南京）有限公司 | Packaged antenna system and mobile terminal |
| CN113131178A (en) * | 2019-12-30 | 2021-07-16 | 杭州海康威视数字技术股份有限公司 | Direction-finding antenna, direction-finding antenna system and electronic equipment |
| CN113131178B (en) * | 2019-12-30 | 2022-09-27 | 杭州海康威视数字技术股份有限公司 | Direction-finding antenna, direction-finding antenna system and electronic equipment |
| CN111509379A (en) * | 2020-04-09 | 2020-08-07 | 山东华箭科工创新科技有限公司 | Double-layer 5G microstrip array antenna |
| CN111370857A (en) * | 2020-05-27 | 2020-07-03 | 东南大学 | Antenna based on substrate integrated multi-line feed network |
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Legal Events
| 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 |
Granted publication date: 20121219 Termination date: 20180606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |