CN2919564Y - Broadband radiated element and broadband mobile communication antenna - Google Patents
Broadband radiated element and broadband mobile communication antenna Download PDFInfo
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- CN2919564Y CN2919564Y CN 200520126535 CN200520126535U CN2919564Y CN 2919564 Y CN2919564 Y CN 2919564Y CN 200520126535 CN200520126535 CN 200520126535 CN 200520126535 U CN200520126535 U CN 200520126535U CN 2919564 Y CN2919564 Y CN 2919564Y
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Abstract
The utility model discloses broadband radiated elements and a broadband mobile communications antenna, the radiated element has the structure of that: the soleplate 8 is provided with a low-frequency probe 5, a low-frequency pillar 6 and a circuit changer10, wherein the upward side of the low-frequency probe 5 is provided with a low-frequency feeding patch 3 which is supported by the low-frequency pillar 6, the upward side of the low-frequency feeding patch 3 is provided with a high-frequency feeding patch 1 which is supported by the a high-frequency pillar, a high- flexural probe4 is arranged between the low-frequency feeding patch3 and the high-frequency feeding patch1, the high-frequency flexural probe4 is connected with the circuit changer10. The broadband mobile communications antenna which composed of broadband radiated elements is the radial arrangement of the equal-number broadband radiated elements 33 and high frequency elements 29,31, the low frequency part of two adjacent broadband radiated elements is positioned with phase reversal feeding. The utility model has the advantages of small size, light weight, wide bandwidth and high-quality communications, and the utility model lays a foundation for the mobile communications systems to be transited from 2G to 3G.
Description
Technical field
The utility model relates to the broadband mobile communication antenna that a kind of mobile communication antenna is used the wide band radiation unit and is made up of this radiating element, and frequency band is 824-960/MHz1710-2500MHz.
Background technology
At present, the cell mobile communication systems of extensive use is a second generation communication system, be GSM and CDMA, continue to expand that value-added service constantly increases and the keen competition of China Mobile and CHINAUNICOM is the gsm system capacity, making base station several increase increases again, the sub-district covers more and more littler, though re-using of frequency improved, customer volume has increased, but the phase mutual interference has also increased thereupon, and quality of services such as speech descend.3-G (Generation Three mobile communication system) is 3G, and it has many Premium Features such as broadband, high rate data transmission, support multimedia, can provide more better service functions for the user, the signal covering quality height; Along with increasing of wireless terminal users such as laptop computer, realizing getting online without being tethered to a cable just becomes the target of next step mobile communication development, i.e. WLAN.So the smooth transition to 3G and WLAN on the basis of original 2G is extremely urgent.Antenna is a part important in the communication system, thereby the appearance of all channel antenna is the first step of realizing this goal and stepping.Though and that present employed microstrip antenna has a volume is little, in light weight, is easy to advantages such as installation, because its frequency band is very narrow, loss is big, can not adapt to the needs of present Communication Development.
Summary of the invention
The purpose of this utility model is to want to overcome above-mentioned the deficiencies in the prior art, provides a kind of not only volume little, in light weight, and the high communication quality, the radiating element of bandwidth and the broadband mobile communication antenna of being made up of this radiating element.
For realizing that the technical scheme that above-mentioned purpose of the present utility model adopts is: a kind of wide band radiation unit, comprise base plate, its design feature is that the low frequency probe is housed on base plate, low frequency pillar and transducer, the low frequency probe is installed on the base plate by the probe base, the top of low frequency probe is provided with low frequency feed paster, low frequency feed paster is by the low frequency shore supports, low frequency feed paster top is provided with high frequency feed paster, high frequency feed paster is by the high frequency shore supports that is fixed on the low frequency feed paster, be provided with the tortuous probe of high frequency between low frequency feed paster and high frequency feed paster, the tortuous probe of high frequency is connected with transducer.
Most preferred embodiment of the present utility model be described transducer between low frequency feed paster and base plate, this transducer is to be made of inner wire, outer conductor and medium, the skin of transducer is an outer conductor, filling medium in the outer conductor, inner wire is positioned in the middle of the medium.
Most preferred embodiment of the present utility model is that described low frequency probe adopts the L type.
Another most preferred embodiment of the present utility model is installed on the back side of base plate for the probe base.
Utilize above-mentioned wide band radiation unit, can form different broadband cell array antennas as required, as, can form low frequency Unit two, high frequency four cell array antennas etc., by the combination of different units quantity, can reach different gain effects.The wide band radiation unit is actually and is made of HFS and low frequency part, its low frequency part is to be made of low frequency probe, low frequency feed paster and low frequency pillar, and HFS is made of high frequency feed paster, the tortuous probe of high frequency and high frequency pillar, HFS directly is installed on the base plate, can constitutes a high frequency unit.Because the low-frequency range wavelength is longer, the high band wavelength is shorter, and the wavelength of low-frequency range centre frequency 892MHz correspondence is 336mm, and the wavelength of high band centre frequency 2105MHz correspondence is 142.5, mm.If the high frequency spacing is identical with the low frequency spacing, then the high frequency spacing will be much larger than a wavelength of high frequency, the array antenna directional diagram of forming with the wide band radiation unit will bifurcated so, do not meet the requirement of actual use, therefore, in the middle of the wide band radiation unit, increase an independent high frequency unit, can effectively guarantee the performance of antenna, adopt anti-phase feed and face two low frequency part in the wide band radiation unit mutually, can offset the influence of high frequency unit to low frequency, the structure that can draw broadband mobile communication antenna of the present utility model thus is as follows:
A kind of broadband mobile communication antenna that utilizes the wide band radiation unit to form, comprise base plate, radome, joint, its design feature is that wide band radiation unit and the high frequency unit that quantity equates is spaced, and the low frequency part of facing two wide band radiation unit mutually adopts anti-phase feed to install.
The method that wide band radiation of the present utility model unit adopts low frequency probe coupling feed to combine with the tortuous probe direct feed of high frequency, can realize 65 ° of mobile communication antennas of broadband single polarization, its volume is little, in light weight, be easy to install, because the tortuous probe direct feed of the high frequency that adopts, make frequency band broadening, standing-wave ratio can reach 64% less than 1.5 bandwidth, its use, thoroughly remedied the narrower defective of micro-strip paster antenna bandwidth, the tortuous probe of high frequency is connected with the probe base by transducer, can guarantee effectively that the performance of high frequency unit does not change, and has reduced disturbing mutually between the low-and high-frequency to the full extent, both guarantee the communication quality of antenna, realized the two-band performance simultaneously again.The broadband mobile communication antenna that adopts the wide band radiation unit to form, it is little, in light weight also to have volume simultaneously, is easy to advantages such as installation, its bandwidth, good communication quality is for mobile communication system is laid the foundation to the 3G transition by 2G.
Description of drawings
Fig. 1 is the structural representation of the utility model wide band radiation a kind of embodiment in unit
Fig. 2 is the structural representation of transducer among Fig. 1
Fig. 3 is the structural representation of a kind of embodiment low frequency of the utility model broadband mobile communication antenna Unit two, high frequency four element antennas
Fig. 4 is a kind of embodiment low frequency of the utility model broadband mobile communication antenna Unit two, high frequency four element antenna feeding network figure
Fig. 5 is a kind of embodiment low frequency of the utility model broadband mobile communication antenna Unit two, high frequency four element antenna vertical views
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done further detailed description.
By Fig. 1 and Fig. 2 as can be seen, the structure of the utility model wide band radiation unit is: low frequency probe 5 is housed on base plate 8, low frequency pillar 6 and transducer 10, low frequency probe 5 is the L type, low frequency probe 5 is installed on the base plate 8 by probe base 9, and by 7 supports of probe pillar, the top of low frequency probe 5 is provided with low frequency feed paster 3, low frequency feed paster 3 is supported by the four low frequency pillars 6 that are installed on the base plate 6, low frequency feed paster 3 tops are provided with high frequency feed paster 1, high frequency feed paster 1 is supported by the high frequency pillar 2 that is fixed on the low frequency feed paster 3, be provided with the tortuous probe 4 of high frequency between low frequency feed paster 3 and high frequency feed paster 1, the tortuous probe 4 of high frequency is connected with transducer 10.
Transducer 10 is between low frequency feed paster 3 and base plate 8, this transducer 10 is to be made of inner wire 12, outer conductor 11 and medium 13, the skin of transducer is an outer conductor 11, in the outer conductor 11 fillings PTFE medium 13, inner wire 12 is positioned in the middle of the medium 13.The tortuous probe 4 of high frequency is connected on the inner wire 12.
Low frequency Unit two of being made up of the wide band radiation unit, structural representation, feeding network figure and the vertical view of high frequency four unit wide band radiation antennas are shown in Fig. 3,4,5, contain base plate 8, radome 16 and DIN joint 15, two wide band radiation unit 33, two high frequency units (30,32) are spaced composition, and the low frequency part 34 of two wide band radiation unit 33 adopts anti-phase feed to install.
Low frequency part contains one group of (two) low frequency feed paster 3, because the frequency band of low frequency is not very wide, adopts L type probe relatively good.In the feeding network, four HFS (two HFSs 29 in the wide band radiation unit, 31 and two high frequency units 30 independently, 32) with one minute four power splitter 20 of a high frequency and four high-frequency radio frequency cables (17,18,21,22) form, two low frequency part (two low frequency part 34 in wide band radiation unit) are with a low frequency one-to-two power splitter 24 and two low frequency radio frequency cables (23,25) form, with cable 19 one minute four power splitter 20 of high frequency is linked together with the two merit devices 27 of wideband microstrip, with cable 26 the two merit devices 27 of low frequency one-to-two power splitter 24 and wideband microstrip are linked together, that is: HFS in the antenna and low frequency part unite two into one by the two merit devices 27 of wideband microstrip, by main feeder 28 outputs.Because HFS 29,31 and the high frequency unit on base plate 8 30,32 are not at grade, so at grade, the phase place of HFS 29,31 is with leading high frequency unit 30,32, to make the directional diagram variation of antenna like this, and gain can decrease, cause antenna performance to descend,, need in feeding network, compensate in order to eliminate the inconsistent problem of phase place.Because HFS 29,31 signals are by transducer 10, and high frequency unit 30,32 signals directly arrive by air and the same plane of HFS 29,31, HFS 29,31 reasons owing to the transducer medium, electrical length will be than airborne length, therefore phase place also lags behind, for making them that unified equiphase surface be arranged, the radio frequency cable 18,21 that is connected with high frequency unit 30,32 is more longer than radio frequency cable 17,22, HFS reaches the homophase feed in the 1710-2500MHz scope like this, finally can obtain desirable directional diagram.
Entire antenna is got up with radome 16 and end cap 14 covers, forms closed system, antenna element and feeding network and whole metal or plastic structural part that protection is inner, and radome uses high-quality PVC plastics to make through the processing and forming of mould.
Claims (5)
1, a kind of wide band radiation unit, comprise base plate (8), it is characterized in that on base plate (8), being equipped with low frequency probe (5), low frequency pillar (6) and transducer (10), low frequency probe (5) is installed on the base plate (8) by probe base (9), the top of low frequency probe (5) is provided with low frequency feed paster (3), low frequency feed paster (3) is supported by low frequency pillar (6), low frequency feed paster (3) top is provided with high frequency feed paster (1), high frequency feed paster (1) is supported by the high frequency pillar (2) that is fixed on the low frequency feed paster (3), be provided with the tortuous probe (4) of high frequency between low frequency feed paster (3) and high frequency feed paster (1), the tortuous probe of high frequency (4) is connected with transducer (10).
2, according to the described wide band radiation of claim 1 unit, it is characterized in that described transducer (10) is positioned between low frequency feed paster (3) and the base plate (8), this transducer is to be made of inner wire (12), outer conductor (11) and medium (13), the skin of transducer (10) is outer conductor (11), the interior filling medium of outer conductor (11) (13), inner wire (12) are positioned in the middle of the medium (13).
3,, it is characterized in that described low frequency probe (5) adopts the L type according to claim 1 or 2 described wide band radiation unit.
4,, it is characterized in that probe base (9) is installed on the back side of base plate (8) according to the described wide band radiation of claim 3 unit.
5, a kind of broadband mobile communication antenna that utilizes claim 1 to form, comprise base plate (8), radome (16), joint (15), it is characterized in that wide band radiation unit (33) and high frequency unit (29,31) that quantity equates are spaced, the low frequency part (34) of facing two wide band radiation unit (33) mutually adopts anti-phase feed to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520126535 CN2919564Y (en) | 2005-12-24 | 2005-12-24 | Broadband radiated element and broadband mobile communication antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520126535 CN2919564Y (en) | 2005-12-24 | 2005-12-24 | Broadband radiated element and broadband mobile communication antenna |
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| Publication Number | Publication Date |
|---|---|
| CN2919564Y true CN2919564Y (en) | 2007-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200520126535 Expired - Fee Related CN2919564Y (en) | 2005-12-24 | 2005-12-24 | Broadband radiated element and broadband mobile communication antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025511A (en) * | 2016-06-20 | 2016-10-12 | 中国电子科技集团公司第三十八研究所 | Low-profile conformal antenna |
| CN110085966A (en) * | 2019-04-29 | 2019-08-02 | 西安爱生无人机技术有限公司 | A kind of ground telemetering and remote-control integral antenna and platform |
| CN110137692A (en) * | 2019-04-29 | 2019-08-16 | 西安爱生无人机技术有限公司 | A kind of ground telemetering antenna and platform |
-
2005
- 2005-12-24 CN CN 200520126535 patent/CN2919564Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025511A (en) * | 2016-06-20 | 2016-10-12 | 中国电子科技集团公司第三十八研究所 | Low-profile conformal antenna |
| CN110085966A (en) * | 2019-04-29 | 2019-08-02 | 西安爱生无人机技术有限公司 | A kind of ground telemetering and remote-control integral antenna and platform |
| CN110137692A (en) * | 2019-04-29 | 2019-08-16 | 西安爱生无人机技术有限公司 | A kind of ground telemetering antenna and platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |