CN204361251U - A kind of broadband radiating unit being applicable to TD smart antenna - Google Patents
A kind of broadband radiating unit being applicable to TD smart antenna Download PDFInfo
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- CN204361251U CN204361251U CN201520052723.6U CN201520052723U CN204361251U CN 204361251 U CN204361251 U CN 204361251U CN 201520052723 U CN201520052723 U CN 201520052723U CN 204361251 U CN204361251 U CN 204361251U
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Abstract
The utility model provides a kind of broadband radiating unit being applicable to TD smart antenna, comprise radiating element main body and feed tab assembly, described radiating element main body comprises radiation arm and the Ba Lun be connected with radiation arm the inner that four orthogonal rows put and is connected with radiation arm outer end and direction lead vertically downward, described Ba Lun links into an integrated entity in bottom structure, is an accommodation space in the middle of it; Be arranged in accommodation space described feed tab assembly and radiating element main body electric insulation, it comprises the upper feed tab of electrically insulated from one another cross-distribution, lower feed tab, described upper feed tab and lower feed tab coordinate fixing by upper medium and lower medium, the upper end that described upper medium is positioned at accommodation space coordinates location and installation with radiation arm, and described lower medium is positioned at bottom the lower end of accommodation space and Ba Lun and is connected and fixed.The utility model, by feed tab and radiation arm coupling feed way, reduces pad during assembling radiating element, improves intermodulation performance.
Description
Technical field
The utility model belongs to moving communicating field, particularly relates to a kind of broadband radiating unit being applicable to TD smart antenna.
Background technology
Along with the maturation of the 4G network communications technology, the development of the business such as data communication and multimedia, and the development of the business such as Mobile data and multimedia, have more and more higher requirement to wireless communication network system.And antenna for base station is cordless communication network very important position, therefore, this has also had more and more higher requirement gradually to antenna for base station.
Have in more and more higher requirement base station antenna system and have: in profile, require that integrated antenna size is less, and realize same outer cover tool multiband aerial etc.; In antenna index request, not only require standing-wave ratio, isolation and intermodulation, and have front and back ratio, cross polarization ratio, side suppression and directional diagram consistency etc.; Particularly, also intermodulation index is proposed to TD smart antenna simultaneously.
Radiating element, as antenna for base station important component part, only has the broadband radiating unit of superior performance could meet the more and more higher requirement of industry to base station antenna system in performance.
Summary of the invention
It is wider and realize improving the requirement of TD smart antenna property indices, the broadband radiating unit being applicable to TD smart antenna of little, lightweight, the easy assembling of volume and stable performance that the utility model provides a kind of frequency band.
The technical solution adopted in the utility model is:
A kind of broadband radiating unit being applicable to TD smart antenna, it is characterized in that: comprise radiating element main body and feed tab assembly, described radiating element main body comprises radiation arm and the Ba Lun be connected with radiation arm the inner that four orthogonal rows put and is connected with radiation arm outer end and direction lead vertically downward, described Ba Lun links into an integrated entity in bottom structure, is an accommodation space in the middle of it; Be arranged in accommodation space described feed tab assembly and radiating element main body electric insulation, it comprises the upper feed tab of electrically insulated from one another cross-distribution, lower feed tab, described upper feed tab and lower feed tab coordinate fixing by upper medium and lower medium, the upper end that described upper medium is positioned at accommodation space coordinates location and installation with radiation arm, and described lower medium is positioned at bottom the lower end of accommodation space and Ba Lun and is connected and fixed.The utility model, by feed tab and radiation arm coupling feed way, reduces pad during assembling radiating element, improves intermodulation performance.
Further, be equipped with gap between two adjacent described radiation arms, described gap extends to bottom Ba Lun from the upper end of radiation arm, and the outline angle in the gap between at least one adjacent described radiation arm is set to rounding structure.There is gap between any two groups of radiation arms, to reduce the coupling between radiating element polarization, improve its isolation performance.
Further, described upper medium comprises a upper medium body consistent with the shape of accommodation space, described upper medium body is provided with the manhole installing feed tab and lower feed tab, the inner side of described manhole is provided with the symmetrically arranged second hole of feed tab under the symmetrically arranged first hole of feed tab in location and installation and location and installation, the upper surface of described first hole arranges higher than the upper surface of second hole and makes to there is feed spacing between upper feed tab and lower feed tab, four limit lower surfaces of described upper medium body are provided with the hierarchic structure be shelved on radiation arm, the corner of described upper medium body is provided with the extension be arranged in gap, the lower end of extension is provided with the chamfering buckle coordinated upper medium and radiation arm location and installation with hierarchic structure.
Further, described lower medium comprises a lower medium body consistent with the shape of accommodation space, the centre of described lower medium body is provided with and the connecting through hole being connected location bottom Ba Lun, its upper surface is provided with one group of half through hole installing the open circuit minor matters of feed tab and lower feed tab respectively protruding vertically upward, its lower surface is provided with one group of installation through hole installing the feed end of feed tab and lower feed tab respectively protruding vertically downward, and the corner of described lower medium body is provided with the extended structure be arranged in gap.
Further, the bottom of described Ba Lun is connected by a flat base, the bottom of described flat base is provided with the screwed hole for fixing radiating element, and the prolongation stud of medium be provided with the location raised up at screwed hole place under, on described flat base below the feed end of upper feed tab and lower feed tab the installation through hole offered respectively on lower medium pass through and the clear opening extended to radiation arm, corresponding Ba Lun forms groove, and the outside of described Ba Lun is provided with reinforcing prop.Prolongation stud of the present utility model not only can locate lower medium, can also strengthen the stability of radiating element integral installation, and reinforcing prop can the intensity of enhanced rad arm.
Further, the metal crimp casting structure that the radiation arm that described four orthogonal rows put and Ba Lun and lead are formed in one, the described radiation arm that four orthogonal rows put is in same plane, and four radiation arm centers are about 1/4 times of center frequency wavelength to each radiation arm outer end distance, the height of described Ba Lun is 1/4 times of centre wavelength, achieve the miniaturization of radiating element, and adopt integrated metal crimp foundry goods, to ensure the stable performance of radiating element and to increase the service life.
Further, described radiation arm is square, each described radiation arm is provided with two roundings, radiation arm comprises two by the square hollow out of the hollow out after equilateral triangle hypotenuse institute diagonal angle rounding and one, outer end, wherein, the two vertical length of sides of equilateral triangle are 0.05 ~ 0.1 centre wavelength, and two is become zhou duicheng tuxing with each radiation arm outer end with the diagonal at radiation arm center by the hollow out after equilateral triangle hypotenuse institute diagonal angle rounding.Three hollow outs on radiation arm, to control sense of current during radiating element work, improve cross polarization and the front and back ratio of radiating element.
Further, described lead is square cylinder structure, and it is highly 0.05 ~ 0.1 centre wavelength, and lead outward flange is concordant with radiation arm edge.
Further, described upper feed tab is one end with lower feed tab and is directly used in the feed end being connected feeding network, and the other end is open circuit minor matters, and the top of described feed end is provided with change section.Upper feed tab and lower feed tab feed end lead directly to reflecting plate back, are directly welded in PCB feeding network, reduce coaxial line quantity to alleviate entire physical weight; Change section can realize the wideband of radiating element, meets the resonance requirement when different frequency works, widen the bandwidth of operation of whole radiating element with this.
The beneficial effects of the utility model: by feed tab and radiation arm coupling feed way, reduce pad during assembling radiating element, improve intermodulation performance; There is gap between any two groups of radiation arms, to reduce the coupling between radiating element polarization, improve its isolation performance; Upper feed tab and lower feed tab feed end lead directly to reflecting plate back, are directly welded in PCB feeding network, reduce coaxial line quantity to alleviate entire physical weight; Radiating element adopts integrated metal crimp foundry goods, to ensure the stable performance of radiating element and to increase the service life; Radiation arm end adopts cylindricality lead, to mate radiating element impedance matching, improves standing-wave ratio performance; Three hollow outs on radiation arm, to control sense of current during radiating element work, improve cross polarization and the front and back ratio of radiating element; The height of radiating element is 1/4 times of center frequency wavelength, and the center of four radiation arms and Ba Lun is also 1/4 times of center frequency wavelength to radiation arm tip length, achieves the miniaturization of radiating element.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is detonation configuration figure of the present utility model.
Fig. 3 is the stereogram of radiating principal of the present utility model.
Fig. 4 is the upward view of radiating principal of the present utility model.
Fig. 5 is the end view of radiating principal of the present utility model.
Fig. 6 is emulation standing-wave ratio figure of the present utility model.
Fig. 7 is the emulation isolation figure that the utility model provides.
Embodiment
Below in conjunction with specific embodiment, the utility model is further described, but the utility model is not confined to these embodiments.One skilled in the art would recognize that the utility model covers all alternatives, improvement project and the equivalents that may comprise in Claims scope.
With reference to Fig. 1-5, a kind of broadband radiating unit being applicable to TD smart antenna, comprise radiating element main body and feed tab assembly, described radiating element main body comprises radiation arm 101 and the Ba Lun 120 be connected with radiation arm 101 the inner that four orthogonal rows put and is connected with radiation arm 101 outer end and direction lead 110 vertically downward, described Ba Lun 120 links into an integrated entity in bottom structure, is an accommodation space 131 in the middle of it; Be arranged in accommodation space 131 described feed tab assembly and radiating element main body electric insulation, it comprises upper feed tab 201, the lower feed tab 210 of electrically insulated from one another cross-distribution, described upper feed tab 201 and lower feed tab 210 coordinate fixing by upper medium 301 and lower medium 401, the upper end that described upper medium 301 is positioned at accommodation space 131 coordinates location and installation with radiation arm 101, and described lower medium 401 is positioned at bottom the lower end of accommodation space 131 and Ba Lun 121 and is connected and fixed.The utility model, by feed tab and radiation arm coupling feed way, reduces pad during assembling radiating element, improves intermodulation performance.
Be equipped with gap 105 between the adjacent described radiation arm 101 of the present embodiment two, described gap 105 extends to bottom Ba Lun 120 from the upper end of radiation arm 101, and the outline angle in the gap between at least one adjacent described radiation arm 101 is set to rounding structure.There is gap between any two groups of radiation arms 101, to reduce the coupling between radiating element polarization, improve its isolation performance.
Described in the present embodiment, upper medium 301 comprises a upper medium body consistent with the shape of accommodation space 131, described upper medium body is provided with the manhole 306 installing feed tab 201 and lower feed tab 210, the inner side of described manhole 306 is provided with the symmetrically arranged second hole 302 of feed tab 210 under the symmetrically arranged first hole 303 of feed tab 201 in location and installation and location and installation, the upper surface of described first hole 303 arranges higher than the upper surface of second hole 302 and makes to there is feed spacing between upper feed tab 201 and lower feed tab 210, four limit lower surfaces of described upper medium body are provided with the hierarchic structure 305 be shelved on radiation arm 101, the corner of described upper medium body is provided with the extension 304 being arranged on 105 li, gap, the lower end of extension 304 is provided with and coordinates the chamfering buckle 307 of upper medium 301 with radiation arm 101 location and installation with hierarchic structure 305.
Described in the present embodiment, lower medium 401 comprises a lower medium body consistent with the shape of accommodation space 131, the centre of described lower medium body is provided with and the connecting through hole 406 being connected location bottom Ba Lun 120, its upper surface is provided with one group of open circuit minor matters 202 installing feed tab 201 and lower feed tab 210 respectively protruding vertically upward, half through hole 402 of 211, its lower surface is provided with one group of installation through hole 404 installing the feed end 205 of feed tab 201 and lower feed tab 210 respectively protruding vertically downward, the corner of described lower medium body is provided with the extended structure 407 being arranged on 105 li, gap.
The bottom of Ba Lun 120 described in the present embodiment is connected by a flat base 122, the bottom of described flat base 122 is provided with the screwed hole 124 for fixing radiating element, and under screwed hole 124 place is provided with the location raised up the prolongation stud 125 of medium 401, described flat base 122 offers respectively below the feed end 205 of upper feed tab 201 and lower feed tab 210 pass through for the installation through hole 404 on lower medium 401 and the clear opening 123 extended to radiation arm 101, corresponding Ba Lun 120 forms groove, the outside of described Ba Lun 120 is provided with reinforcing prop 121.Prolongation stud 125 of the present utility model not only can locate lower medium 401, can also strengthen the stability of radiating element integral installation, and reinforcing prop 121 can the intensity of enhanced rad arm 101.
The metal crimp casting structure that the radiation arm 101 that four orthogonal rows described in the present embodiment put and Ba Lun 120 and lead 110 are formed in one, the described radiation arm 101 that four orthogonal rows put is in same plane, and four radiation arm 101 centers are about 1/4 times of center frequency wavelength to each radiation arm 101 outer end distance, the height of described Ba Lun 120 is 1/4 times of centre wavelength, achieve the miniaturization of radiating element, and adopt integrated metal crimp foundry goods, to ensure the stable performance of radiating element and to increase the service life.
Described in the present embodiment, radiation arm 101 is square, each described radiation arm 101 is provided with two roundings, radiation arm 101 comprises two by the square hollow out 204 of the hollow out 203 after equilateral triangle hypotenuse institute diagonal angle rounding and one, outer end, wherein, the two vertical length of sides of equilateral triangle are 0.05 ~ 0.1 centre wavelength, and two is become zhou duicheng tuxing with each radiation arm 101 outer end with the diagonal at radiation arm 101 center by the hollow out 203 after equilateral triangle hypotenuse institute diagonal angle rounding.Three hollow outs on radiation arm 101, to control sense of current during radiating element work, improve cross polarization and the front and back ratio of radiating element.Hollow out 103 after equilateral triangle hypotenuse institute carries out rounding in diagonal angle, the outline chamfering in gap 105 are not limited to rounding, as right angle; Square hollow out 204 is not limited to square hollow out, as circle, polygon etc.
Described in the present embodiment, lead 110 is square cylinder structure, and it is highly 0.05 ~ 0.1 centre wavelength, and lead 110 outward flange is concordant with radiation arm 101 edge.
Described in the present embodiment, upper feed tab 201 is one end with lower feed tab 210 and is directly used in the feed end 205 being connected feeding network, and the other end is open circuit minor matters 202,211, and the top of described feed end 205 is provided with change section 204.Upper feed tab 204 and lower feed tab 210 feed end lead directly to reflecting plate back, are directly welded in PCB feeding network, reduce coaxial line quantity to alleviate entire physical weight; Change section 204 can realize the wideband of radiating element, meets the resonance requirement when different frequency works, widen the bandwidth of operation of whole radiating element with this.
When the utility model is installed, first the connecting through hole 406 of lower medium 401 is placed in each gap 105 of radiating principal respectively by the threaded post 125 bottom Ba Lun 120, each extension, corner; After by lower feed tab 210 and upper feed tab 201 respectively by second hole 302 in upper medium 301 and first hole 303 liang group through hole, the open circuit minor matters 202,211 of two feed tab are placed in half through hole 402 with lower medium 401 respectively, the feed end 205 of upper feed tab 201, lower feed tab 210 installs through hole 404 respectively by a group of lower medium 401,401 liang, lower medium installs through hole 404 by the clear opening 123 bottom Ba Lun 120, and the feed end 205 of upper feed tab 201, lower feed tab 210 is connected with feeding network by installing through hole 404; Preferably, the feed end 205 of upper feed tab 201, lower feed tab 210 directly and PCB connection.
Operation principle of the present utility model is as follows: upper feed tab 201, lower feed tab 210 and Ba Lun 120 form air microstrip form, upper feed tab 201, lower feed tab 210 carries out Energy Coupling with Ba Lun 120, network signal is transferred to upper feed tab 201 by feeding network, lower feed tab 210, the electromagnetic wave of signal code is in feed tab open circuit minor matters 202, 211 ends reach balance, and upper feed tab 201, lower feed tab 210 and Ba Lun 120 carry out impedance transformation, the electromagnetic signal Energy Coupling entered by feed end 205 with this is distributed on two groups of radiation arms 101, now, current amplitude on the radiation arm 101 of arbitrary group of symmetry, direction is consistent.
See Fig. 6 and Fig. 7, for three-dimensional artificial figure of the present utility model, as seen from the figure, the broadband radiating unit of TD smart antenna of the present utility model works in 1.8 ~ 2.7GHz wide-band, have good electric property, that can take into account TD-SCDMA network, TD-LTE network and TD-LTE network widens frequency range.
Claims (9)
1. one kind is applicable to the broadband radiating unit of TD smart antenna, it is characterized in that: comprise radiating element main body and feed tab assembly, described radiating element main body comprises radiation arm and the Ba Lun be connected with radiation arm the inner that four orthogonal rows put and is connected with radiation arm outer end and direction lead vertically downward, described Ba Lun links into an integrated entity in bottom structure, is an accommodation space in the middle of it; Be arranged in accommodation space described feed tab assembly and radiating element main body electric insulation, it comprises the upper feed tab of electrically insulated from one another cross-distribution, lower feed tab, described upper feed tab and lower feed tab coordinate fixing by upper medium and lower medium, the upper end that described upper medium is positioned at accommodation space coordinates location and installation with radiation arm, and described lower medium is positioned at bottom the lower end of accommodation space and Ba Lun and is connected and fixed.
2. a kind of broadband radiating unit being applicable to TD smart antenna as claimed in claim 1, it is characterized in that: between two adjacent described radiation arms, be equipped with gap, described gap extends to bottom Ba Lun from the upper end of radiation arm, and the outline angle in the gap between at least one adjacent described radiation arm is set to rounding structure.
3. a kind of broadband radiating unit being applicable to TD smart antenna as claimed in claim 2, it is characterized in that: described upper medium comprises a upper medium body consistent with the shape of accommodation space, described upper medium body is provided with the manhole installing feed tab and lower feed tab, the inner side of described manhole is provided with the symmetrically arranged second hole of feed tab under the symmetrically arranged first hole of feed tab in location and installation and location and installation, the upper surface of described first hole arranges higher than the upper surface of second hole and makes to there is feed spacing between upper feed tab and lower feed tab, four limit lower surfaces of described upper medium body are provided with the hierarchic structure be shelved on radiation arm, the corner of described upper medium body is provided with the extension be arranged in gap, the lower end of extension is provided with the chamfering buckle coordinated upper medium and radiation arm location and installation with hierarchic structure.
4. a kind of broadband radiating unit being applicable to TD smart antenna as claimed in claim 2, it is characterized in that: described lower medium comprises a lower medium body consistent with the shape of accommodation space, the centre of described lower medium body is provided with and the connecting through hole being connected location bottom Ba Lun, its upper surface is provided with one group of half through hole installing the open circuit minor matters of feed tab and lower feed tab respectively protruding vertically upward, its lower surface is provided with one group of installation through hole installing the feed end of feed tab and lower feed tab respectively protruding vertically downward, the corner of described lower medium body is provided with the extended structure be arranged in gap.
5. a kind of broadband radiating unit being applicable to TD smart antenna as claimed in claim 1, it is characterized in that: the bottom of described Ba Lun is connected by a flat base, the bottom of described flat base is provided with the screwed hole for fixing radiating element, and the prolongation stud of medium be provided with the location raised up at screwed hole place under, on described flat base below the feed end of upper feed tab and lower feed tab the installation through hole offered respectively on lower medium pass through and the clear opening extended to radiation arm, corresponding Ba Lun forms groove, the outside of described Ba Lun is provided with reinforcing prop.
6. a kind of broadband radiating unit being applicable to TD smart antenna as claimed in claim 1, it is characterized in that: the metal crimp casting structure that the radiation arm that described four orthogonal rows put and Ba Lun and lead are formed in one, the described radiation arm that four orthogonal rows put is in same plane, and four radiation arm centers are about 1/4 times of center frequency wavelength to each radiation arm outer end distance, the height of described Ba Lun is 1/4 times of centre wavelength.
7. a kind of broadband radiating unit being applicable to TD smart antenna as claimed in claim 1, it is characterized in that: described radiation arm is square, each described radiation arm is provided with two roundings, radiation arm comprises two by the square hollow out of the hollow out after equilateral triangle hypotenuse institute diagonal angle rounding and one, outer end, wherein, the two vertical length of sides of equilateral triangle are 0.05 ~ 0.1 centre wavelength, and two is become zhou duicheng tuxing with each radiation arm outer end with the diagonal at radiation arm center by the hollow out after equilateral triangle hypotenuse institute diagonal angle rounding.
8. a kind of broadband radiating unit being applicable to TD smart antenna as claimed in claim 1, it is characterized in that: described lead is square cylinder structure, it is highly 0.05 ~ 0.1 centre wavelength, and lead outward flange is concordant with radiation arm edge.
9. a kind of broadband radiating unit being applicable to TD smart antenna as described in one of claim 1 ~ 8, it is characterized in that: described upper feed tab is one end with lower feed tab and is directly used in the feed end being connected feeding network, the other end is open circuit minor matters, and the top of described feed end is provided with change section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520052723.6U CN204361251U (en) | 2015-01-26 | 2015-01-26 | A kind of broadband radiating unit being applicable to TD smart antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520052723.6U CN204361251U (en) | 2015-01-26 | 2015-01-26 | A kind of broadband radiating unit being applicable to TD smart antenna |
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| CN204361251U true CN204361251U (en) | 2015-05-27 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114026A1 (en) * | 2015-12-30 | 2017-07-06 | 华为技术有限公司 | Terminal equipment and antenna |
| CN108448235A (en) * | 2018-03-01 | 2018-08-24 | 武汉虹信通信技术有限责任公司 | A kind of broadband radiating unit |
| CN109755720A (en) * | 2019-01-02 | 2019-05-14 | 武汉虹信通信技术有限责任公司 | High frequency oscillator and antenna for base station |
| CN109830798A (en) * | 2018-12-20 | 2019-05-31 | 吴通控股集团股份有限公司 | A kind of new antenna a period of time |
| CN115347352A (en) * | 2022-08-30 | 2022-11-15 | 江苏亨鑫科技有限公司 | Miniaturized wide band section base station antenna unit |
| CN116404416A (en) * | 2023-05-23 | 2023-07-07 | 江苏亨鑫科技有限公司 | Feed assembly with U-shaped structure and antenna unit |
| CN116666974A (en) * | 2023-07-24 | 2023-08-29 | 南京纳特通信电子有限公司 | Double-feed polarization-changeable ultra-wideband microstrip oscillator antenna |
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2015
- 2015-01-26 CN CN201520052723.6U patent/CN204361251U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017114026A1 (en) * | 2015-12-30 | 2017-07-06 | 华为技术有限公司 | Terminal equipment and antenna |
| CN106935962A (en) * | 2015-12-30 | 2017-07-07 | 华为技术有限公司 | Terminal device and antenna |
| CN106935962B (en) * | 2015-12-30 | 2020-02-14 | 华为技术有限公司 | Terminal device and antenna |
| CN108448235A (en) * | 2018-03-01 | 2018-08-24 | 武汉虹信通信技术有限责任公司 | A kind of broadband radiating unit |
| CN109830798A (en) * | 2018-12-20 | 2019-05-31 | 吴通控股集团股份有限公司 | A kind of new antenna a period of time |
| CN109830798B (en) * | 2018-12-20 | 2024-04-02 | 吴通控股集团股份有限公司 | Novel antenna array |
| CN109755720A (en) * | 2019-01-02 | 2019-05-14 | 武汉虹信通信技术有限责任公司 | High frequency oscillator and antenna for base station |
| CN115347352A (en) * | 2022-08-30 | 2022-11-15 | 江苏亨鑫科技有限公司 | Miniaturized wide band section base station antenna unit |
| CN116404416A (en) * | 2023-05-23 | 2023-07-07 | 江苏亨鑫科技有限公司 | Feed assembly with U-shaped structure and antenna unit |
| CN116404416B (en) * | 2023-05-23 | 2023-12-22 | 江苏亨鑫科技有限公司 | Feed assembly with U-shaped structure and antenna unit |
| CN116666974A (en) * | 2023-07-24 | 2023-08-29 | 南京纳特通信电子有限公司 | Double-feed polarization-changeable ultra-wideband microstrip oscillator antenna |
| CN116666974B (en) * | 2023-07-24 | 2023-09-22 | 南京纳特通信电子有限公司 | Double-feed polarization-changeable ultra-wideband microstrip oscillator antenna |
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