CN202737094U - Wideband dual-frequency mobile communication base station antenna - Google Patents
Wideband dual-frequency mobile communication base station antenna Download PDFInfo
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- CN202737094U CN202737094U CN 201120521785 CN201120521785U CN202737094U CN 202737094 U CN202737094 U CN 202737094U CN 201120521785 CN201120521785 CN 201120521785 CN 201120521785 U CN201120521785 U CN 201120521785U CN 202737094 U CN202737094 U CN 202737094U
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Abstract
The utility model is applicable to the field of mobile communication base station antenna and discloses a wideband dual-frequency mobile communication base station antenna, which comprises a low-frequency radiation unit array, a high-frequency radiation unit array, a low-frequency feed network, a high-frequency feed network and a reflection plate. The low-frequency unit enhances bandwidth by introducing parasitic radiation patches. Tail ends of two pairs of radiation arms of the high-frequency radiation unit are bent, the high-frequency radiation unit array is nested in a blank region remained by the low-frequency radiation unit, and the radiation unit arrays are fixedly arranged in the axial direction of the reflection plate. The high- and low-frequency radiation units are etched on a same surface of a medium base plate of an antenna radiation body, and L-shaped coupled micro-strip feed lines are etched on the other surface of the medium base plate of the antenna radiation body. High- and low-frequency micro-strip power dividers disposed on the reflection plate are connected with the high- and low-frequency radiation units respectively through a coaxial line, each channel of signals is input to the radiation unit corresponding to each array in a uniform-amplitude and constant-phase mode, and such symmetrical feed mechanism ensures that the antenna can obtain good directional diagram property.
Description
Technical field
The utility model relates to the antenna that a kind of moving communicating field uses, and relates in particular to a kind of Wideband double frequency mobile communication base station antenna.
Background technology
Along with the development of mobile communication technology, antenna for base station is as the important component part of mobile communication wireless connecting system, also substitutes along with communication system and improves, and its performance directly affects the overall performance of whole wireless network.The mobile communication technology of develop rapidly requires antenna for base station miniaturization, broadband, multiband, high efficiency and various requirement that more can adaptive system.Along with the continuous increase of user density, the covering radius of cellular cell reduces, and causes the situation of standing in great numbers in a lot of local base stations, and in densely populated city, antenna for base station takes up an area expensive; Along with the increase of people's environmental consciousness, more and more higher to the selection requirement of site, base station; In addition, because antenna for base station is in outdoorly for a long time, maintenance work is increasingly heavy; Therefore reduce antenna amount and become the important consideration of selecting antenna for base station.
The mobile communication technology development multiple communication standard occurred so far.Experience the development of first generation analog mobile communication system, second generation digital mobile communication system, third generation PCS Personal Communications System, stepped into gradually now the next epoch.In China, along with the arrival in 3G epoch, the situation of 3G communication system and 2G coexistence of communication systems has appearred, simultaneously because the development of 4G communication system, the covering of LTE2300/LTE2500 frequency range is become new demand.In Japan, wireless communication frequency band is divided the frequency ranges such as 900MHz/1500MHz/2000MHz is arranged.Along with increasing rapidly of mobile subscriber, the continuous dilatation of communication system, the multiple types system also deposits, and a plurality of systems share a cover antenna, so that the designing requirement antenna of antenna for base station can be worked in broad frequency range, support different subsystems.
Realize the covering of 2G, 3G, 4G (LTE) frequency range, need antenna to have 824-960MHz, the bandwidth of 1.71-2.69GHz covers, and present multiple frequency broad band antenna for base station has deficiency on bandwidth covers.In general antenna for base station adopts upright oscillator or the stacked form of multiple-layered patches, and 3-D solid structure is complicated.For conveniently carrying out waveform and the Fang Tu control that has a down dip, the antenna for base station that is used for mobile communication system generally need to adopt array way.When battle array group, when the electrical length of spacing greater than half-wavelength, just graing lobe may appear.If high frequency radiation part and low frequency radiation are partly set up in same antenna element, the high frequency radiation part is identical with the spacing of low frequency radiation part during the group battle array, and the electrical length of high frequency radiation unit interval is greater than the electrical length of low frequency radiation unit, when high frequency centre frequency and low frequency center frequency ratio are about 2:1, equidistantly evenly organize battle array, large graing lobe may appear in the high band directional diagram.Therefore, both guaranteed that antenna structure was simple, avoiding again simultaneously large graing lobe occurring at high band is the problem that will solve.
Summary of the invention
The utility model purpose is to provide a kind of whole plane structure, well behaved Wideband double frequency mobile communication base station antenna.Do not increasing antenna for base station quantity and do not reducing under the prerequisite of antenna performance index, support simultaneously the 900MHz(810-950MHz of GSM900/1800, CDMA, PCS, TD-SCDMA/WCDMA/cdma2000, LTE2300, LTE2500 and Japan with common antenna), 1500MHz(1429-1516MHz), and 2000MHz(1710-2690MHz) frequency range.Satisfy the needs of the many performances of mobile communication system, reach the purpose of effective minimizing antenna amount.
For solving the problems of the technologies described above, the utility model provides the directed broadband dual-frequency antenna for base station of a kind of feed that is coupled, the coaxial nested whole plane structure of arranging of low-and high-frequency radiating element.
Technical scheme is as follows: this antenna comprises antenna radiator, feeding network, medium substrate, reflecting plate, supporting construction and fixed structure, and described medium substrate comprises antenna radiator medium substrate and feed structure medium substrate; Feeding network is etched on the feed structure medium substrate, and the feed structure medium substrate is located at the reflecting plate upper surface; Antenna radiator adopts the printed dipole antenna array format, is etched on the antenna radiator medium substrate, and the antenna radiator medium substrate is installed on the supporting construction by fixed structure, and supporting construction is installed in directly over the reflecting plate.
Antenna radiator comprises low frequency radiation cell array and high frequency radiation cell array, and the low frequency radiation cell array comprises n(n=1,2,3 ...) individual low frequency radiation unit, the high frequency radiation cell array comprises 2n high frequency radiation unit; Preferably, the low frequency radiation cell array comprises 4 low frequency radiation unit, and the high frequency radiation cell array comprises 8 high frequency radiation unit.Per two high frequency radiation unit are respectively in the nested both sides remaining space that is located at same low frequency radiation unit; Coplanar and the coaxial line of high frequency radiation cell array and low frequency radiation cell array, its axis is positioned on the reflecting plate longitudinal central axis line.Adjacent high frequency radiation unit interval is equal, and adjacent low frequency radiation unit interval is equal, and the low frequency radiation unit interval is 2 times of high frequency radiation unit interval.
The low frequency radiation unit comprises a low frequency oscillator, two parasitic radiation pasters, L shaped the first feeder line and the coplanar microstrip line of low frequency radiation unit; The low frequency oscillator is formed in parallel by two low frequency printing half-wave dipoles; Low frequency oscillator, parasitic radiation paster, the coplanar back side that is printed in the antenna radiator medium substrate of coplanar microstrip line, the first feeder line is printed in the front of antenna radiator medium substrate; Two parasitic radiation patch both sides about the low frequency oscillator.It is identical with the oscillator arms width that the parasitic radiation paster preferably adopts, and length range is 0.3 λ
2~ 0.8 λ
2The rectangle paster.The brachium of low frequency oscillator has been determined low-frequency resonant frequency range 800-980MHz substantially.The characteristic impedance of the first feeder line is 50 Ω, and length range is 0.1 λ
2~ 0.3 λ
2, the coplanar microstrip line length range of low frequency radiation unit is 0.3 λ
2~ 0.8 λ
2λ wherein
2Be the corresponding wavelength of high band centre frequency 0.89GHz in the antenna radiator medium substrate.
The high frequency radiation unit comprises high frequency oscillator, L shaped the second feeder line and the coplanar microstrip line of high frequency radiation unit; The high frequency oscillator is formed in parallel by two high frequency printing half-wave dipoles, the terminal bending of high frequency oscillator arms.The coplanar back side that is printed in the antenna radiator medium substrate of high frequency oscillator and coplanar microstrip line, the second feeder line is printed in the front of antenna radiator medium substrate; The brachium of high frequency radiation unit (length that comprises bending part) has been determined high-frequency resonant frequency range 1.42-2.7GHz substantially.The characteristic impedance of the second feeder line is 50 Ω, and the length range of the second feeder line is 0.15 λ
3~ 0.4 λ
3, the coplanar microstrip line length range of high frequency radiation unit is 0.25 λ
3~ 0.85 λ
3λ wherein
3Be the corresponding wavelength of high band centre frequency 2.05GHz in the antenna radiator medium substrate.
Described feeding network comprises low frequency feeding network, high frequency feeding network; Respectively low frequency radiation cell array and high frequency radiation cell array are carried out feed by low frequency feeding network and high frequency feeding network.The low frequency feeding network is made of the coaxial line of low frequency microstrip power divider and 4 equal lengths; The high frequency feeding network is made of the coaxial line of high-frequency microstrip power splitter and 8 equal lengths.
The low frequency microstrip power divider is one minute four microstrip power divider, power splitter cascade by one-to-two consists of, the power splitter of each one-to-two adopts the impedance transformer structure of 50-100 Ω, and the length of every one-level transformation line is approximately 1/4th of the interior low-frequency range centre frequency 0.89GHz institute of feed structure medium substrate corresponding wavelength.The characteristic impedance of coaxial line is 50 Ω, inner core one end of coaxial line passes that non-metallic via hole links to each other with the first feeder line on the low frequency radiation unit, the other end links to each other with the microstrip line of low frequency microstrip power divider output port, outer conductor one end of coaxial line links to each other with the coplanar microstrip line of low frequency radiation unit, and the other end links to each other with the metal ground at the low frequency microstrip power divider back side.Described connected mode can adopt the electrically connected methods such as welding.
The high-frequency microstrip power splitter is one minute eight microstrip power divider, power splitter cascade by one-to-two consists of, the power splitter of each one-to-two adopts the secondary impedance transformer structure of 50-100 Ω, the length of every one-level transformation line be approximately high band centre frequency 2.05GHz in the corresponding feed structure medium substrate wavelength 1/4th.The characteristic impedance of coaxial line is 50 Ω, inner core one end of coaxial line passes that non-metallic via hole links to each other with the second feeder line on the high frequency radiation unit, the other end links to each other with the microstrip line of high-frequency microstrip power splitter output port, outer conductor one end of coaxial line links to each other with the coplanar microstrip line of high frequency radiation unit, and the other end links to each other with the metal ground at the high-frequency microstrip power splitter back side.Described connected mode can adopt the electrically connected methods such as welding.
With the support construction supports of insulating material, the length of supporting construction is by the height decision of antenna radiator apart from reflecting plate between described antenna radiator and the reflecting plate, and described height is 0.2 λ
1~ 0.5 λ
1, λ
1Wavelength by the corresponding free space of high band centre frequency 2.05GHz.Antenna radiator and supporting construction are fixed on the reflecting plate by fixed structure.Described supporting construction is sticking plaster or wooden stick, and described fixed structure is the plastics screw.
The relative prior art of the technical solution of the utility model has following advantage and beneficial effect:
The elementary cell of multifrequency antenna has the multi resonant characteristic of shaking, and on the one hand, the design by feed that printing vibrator in parallel is coupled and apart from the optimization of reflector height obtains the impedance operator in broadband and good directed radiation mode; On the other hand, low frequency radiation cell array and the coaxial of high frequency radiation cell array are arranged, and make individual antenna realize dual frequency characteristics.
The high frequency radiation cell array of this orientation high-gain aerial and low frequency radiation cell array, nested coaxial arranging point-blank realized integral layout in the confined space.The quantity of high frequency radiation unit is two times of low frequency radiation element number, and the high frequency radiation unit interval equates with the low frequency radiation unit interval during group battle array, can avoid large graing lobe occurring at high band.
In the low frequency radiation unit, introduced the parasitic radiation paster, because the effect that intercouples in than the slightly high band limits of low frequency oscillator resonance point, has produced another resonance by the parasitic radiation paster, can expand general 130MHz band bandwidth, thereby cover the frequency range of 800-980MHz fully.
The first feeder line and the second feeder line adopt the mode of L shaped coupling feed, realized the right feed of high and low frequency radiating element oscillator in parallel with one section simple terminal open circuit microstrip line, under the condition without complicated feed structures such as wideband baluns, so that impedance bandwidth tool broadband effects, help the impedance matching in broadband, relative bandwidth reaches 20% at low frequency, and high frequency reaches 50%.
Two parallelly feeding networks of high frequency feeding network and low frequency feeding network have been designed respectively, feed for the unit of each array is full symmetric, can guarantee in each bandwidth each array element constant amplitude homophase feed, thereby guarantee that antenna has good pattern characteristics.Feeding network is positioned on the reflecting plate, utilizes coaxial line to connect each unit of feeding network output port and antenna.
In actual applications, high frequency band signal has larger path loss, and transmitting identical spacing needs higher gain.In the nested arrangement architecture of the low-and high-frequency of this dual-band antenna, the antenna number of high band is Duoed one times than the antenna amount of low-frequency range, and yield value can remedy path loss well than the high 3dB of low-band gain in theory.
This antenna structure whole plane, compactness, be easy to make and adopted and the feedback pattern, realized the performance index of the directed high-gain of multiband.Be used for supporting the global system for mobile communications gsm system, its working frequency range is 824-960MHz; Digital communications services DCS system, its working frequency range is 1710-1880MHz; Personal communication service pcs system, its working frequency range are the TD-SCDMA/WCDMA/cdma2000 system of 1850-1990MHz, 3G, and its working frequency range is 1880-2170MHz; The LTE2300/LTE2500 system of 4G, its working frequency range is respectively 2305MHz-2400MHz, 2500MHz-2690MHz.On the whole, this antenna for base station satisfies the requirement of miniaturization, low cost, high-gain.
Description of drawings
Fig. 1 is this Wideband double frequency mobile communication base station antenna vertical view.
Fig. 2 is this Wideband double frequency mobile communication base station antenna end view.
Fig. 3 is low frequency radiation unit front view.
Fig. 4 is high frequency radiation unit front view.
Fig. 5 is low frequency microstrip power divider front view.
Fig. 6 is high-frequency microstrip power splitter front view.
Each description of reference numerals is as follows in Fig. 1～6:
1A～1D, low frequency radiation unit; 2A～2H, high frequency radiation unit; 3
, the antenna radiator medium substrate; 3
, the feed structure medium substrate; 4, reflecting plate; 5, low frequency oscillator; 6, parasitic radiation paster; 7, the first feeder line; Non-metallic via hole on 8A, the low frequency radiation unit; Non-metallic via hole on 8B, the high frequency radiation unit; 9, the second feeder line; 10, low frequency microstrip power divider; 11, high-frequency microstrip power splitter; 12, supporting construction; 13, fixed structure; 14, the coplanar microstrip line in low frequency radiation unit; 15, high frequency oscillator; The coplanar microstrip line in 16 high frequency radiation unit.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.Should be understood that, specific embodiment described herein is only in order to explaining the utility model, and is not used in restriction the utility model.Those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
In this embodiment, the high frequency radiation cell array adopts 8 yuan of battle arrays, comprises 8 high frequency radiation unit; The low frequency radiation cell array adopts 4 yuan of battle arrays, comprises 4 low frequency radiation unit.Fig. 1 is the front plan view of whole slave antenna, and Fig. 2 is whole slave antenna end view.Low frequency radiation unit 1A～1D and high frequency radiation unit 2A～2H are printed in antenna radiator medium substrate 3 all along the nested arrangement of reflecting plate 4 Ys
The back side, and be positioned at reflecting plate 4 homonymies, low frequency radiation cell array and high frequency radiation cell array all adopt the straight line arrangement mode in the present embodiment.
High frequency radiation unit 2A～2H adopts the deformed Oscillators scheme of terminal bending, and the brachium of high frequency radiation unit is that 61mm(does not comprise bending part), bending part length is 6mm.Low frequency radiation unit 1A～1D introduces respectively two parasitic radiation pasters 6 at the 4mm place, two pairs of radiation arm outsides of low frequency oscillator 5, and the brachium of low frequency oscillator 5 is 155mm, and parasitic radiation paster 6 length are 115mm.Parasitic radiation paster 6 is to introduce for the expansion low-frequency bandwidth.
Fig. 3 is low frequency radiation unit front plan view.The first feeder line 7 is L shaped microstrip feed lines, and in order to the feed that is coupled to the low frequency radiation unit, the first feeder line 7 is positioned at antenna radiator medium substrate 3
The front, characteristic impedance is 50 Ω, length 31.6mm.Figure 4 shows that high frequency radiation unit front plan view.The second feeder line 9 is L shaped microstrip feed lines, and in order to the feed that is coupled to the high frequency radiation unit, the second feeder line 9 is positioned at antenna radiator medium substrate 3
The front, characteristic impedance is 50 Ω, length is 26.5mm.
Figure 5 shows that the front plan view of low frequency microstrip power divider 10.One minute four microstrip power divider of low frequency are used for low frequency radiation cell array feed, are positioned on the reflecting plate.
Consider from layout, inner core one end of coaxial line passes that non-metallic via hole 8A links to each other with the first feeder line 7 on the low frequency radiation unit, the other end links to each other with the microstrip line of low frequency microstrip power divider 10 output ports, outer conductor one end of coaxial line links to each other with the coplanar microstrip line 14 of low frequency radiation unit, and the other end links to each other with low frequency microstrip power divider 10 back-side gold possessions.The place, input port of low frequency microstrip power divider 10 is connected to the SMA head.The mode that is electrically connected all adopts the modes such as welding.The path of signal is: SMA head → low frequency microstrip power divider 10 → coaxial line → the first feeder line 7.
Figure 6 shows that the front plan view of high-frequency microstrip power splitter 11.One minute eight microstrip power divider of high frequency are used for high frequency radiation cell array feed, are positioned on the reflecting plate.
Consider from layout, inner core one end of coaxial line passes that non-metallic via hole 8B links to each other with the second feeder line 9 on the high frequency radiation unit, the other end links to each other with the microstrip line of high-frequency microstrip power splitter 11 output ports, outer conductor one end of coaxial line links to each other with the coplanar microstrip line 16 in high frequency radiation unit, and the other end links to each other with high-frequency microstrip power splitter 11 back-side gold possessions.The place, input port of high-frequency microstrip power splitter 11 is connected to the SMA head.The mode that is electrically connected adopts the modes such as welding.The path of signal is: SMA head → high-frequency microstrip power splitter 11 → coaxial line → the second feeder line 9.
Low frequency radiation unit and high frequency radiation unit all are etched in antenna radiator medium substrate 3
, antenna radiator medium substrate 3
The high frequency plate Rogers 4350B sheet material of 0.76mm thickness, relative dielectric constant 3.48.
Coaxial line adopts the coaxial RG-178 of half steel, and diameter is 2.5mm, and characteristic impedance is 50 Ω.
High-frequency microstrip power splitter 11 and low frequency microstrip power divider 10 all are etched in feed structure medium substrate 3
, feed structure medium substrate 3
Adopt the Taconic TLY-5 high frequency sheet material of 0.8mm thickness, relative dielectric constant 2.2, loss angle tangent is 0.0009.The low-loss factor has been considered in selection.
Reflecting plate 4 adopts the plane slab construction.Reflecting plate is long to be 830mm, and wide is 320mm.Reflecting plate 4 can adopt aluminium sheet, copper coin, cover the copper medium substrate.Antenna radiator is set up in by supporting construction 12 directly over the reflecting plate 4, and distance is 45mm.Fixing by fixed structure 13 between supporting construction 12, antenna radiator and the reflecting plate 4, fixed structure 13 is the plastics screw.The shape of reflecting plate 4 and large I according to the actual requirements and experimental performance further adjust, to obtaining better pattern characteristics.
High frequency radiation unit 2A～2H, and the position of arranging of low frequency radiation unit 1A～1D can be according to experimental performance and space layout flexible choice.The utility model is realized integral layout by adopting the nested arrangement mode of low-and high-frequency in the confined space, the high frequency radiation unit is nested in the centre in the zone of leaving a blank of low frequency radiation unit, and the quantity of high frequency radiation unit is two times of low frequency cell quantity.Spacing during the group battle array between the high frequency radiation unit is 85mm, and the spacing between the low frequency radiation unit is 170mm.Be about at the frequency range center frequency ratio under the condition of 2:1, identical electrical length can be avoided large graing lobe occurring at high band.
Owing to adopting the symmetric feeds mechanism of the phase such as constant amplitude, be full symmetric for the feed of each array element, can guarantee that the feed to each array element is the constant amplitude homophase in whole bandwidth, can guarantee that like this antenna has good antenna pattern characteristic.Because the oscillator unit of this kind oscillator form in parallel has embodied high gain characteristics, gain further improves after the group battle array, can be used as the reference of selecting antenna of mobile communication base station.The utility model can be used in realizes in the antenna that the 2G frequency range comprises that GSM900, GSM1800,3G frequency range comprise WCDMA, TD-SCDMA, cdma2000, and all standing of the 4G frequency range such as LTE2300/LTE2500, and the covering of Japanese 900MHz, 1500MHz, 2000MHz frequency range.
Claims (9)
1. a Wideband double frequency mobile communication base station antenna comprises antenna radiator, feeding network, medium substrate, reflecting plate, supporting construction and fixed structure, and described medium substrate comprises antenna radiator medium substrate and feed structure medium substrate; Feeding network is etched on the feed structure medium substrate, and the feed structure medium substrate is located at the reflecting plate upper surface; Antenna radiator is etched on the antenna radiator medium substrate, the antenna radiator medium substrate is installed on the supporting construction by fixed structure, supporting construction is installed in directly over the reflecting plate, it is characterized in that described antenna radiator comprises low frequency radiation cell array and the high frequency radiation cell array of arranging by same longitudinal axis; The low frequency radiation cell array comprises n low frequency radiation unit, and the high frequency radiation cell array comprises 2n high frequency radiation unit, and n is natural number; Per two high frequency radiation unit are respectively in the nested both sides remaining space that is located at same low frequency radiation unit; Adjacent high frequency radiation unit interval is equal, and adjacent low frequency radiation unit interval is equal, and the low frequency radiation unit interval is 2 times of high frequency radiation unit interval.
2. a kind of Wideband double frequency mobile communication base station antenna according to claim 1, it is characterized in that: the low frequency radiation cell array comprises 4 low frequency radiation unit, the high frequency radiation cell array comprises 8 high frequency radiation unit.
3. a kind of Wideband double frequency mobile communication base station antenna according to claim 1 and 2, it is characterized in that: described low frequency radiation unit comprises a low frequency oscillator and two parasitic radiation pasters; The low frequency oscillator is formed in parallel by two low frequency printing half-wave dipoles; Two parasitic radiation patch both sides about the low frequency oscillator.
4. a kind of Wideband double frequency mobile communication base station antenna according to claim 1 and 2, it is characterized in that: described high frequency radiation unit comprises a high frequency oscillator; The high frequency oscillator is formed in parallel by two high frequency printing half-wave dipoles, the terminal bending of high frequency oscillator arms.
5. a kind of Wideband double frequency mobile communication base station antenna according to claim 1 and 2 is characterized in that: the coplanar and coaxial line of described high frequency radiation cell array and low frequency radiation cell array, its axis is positioned on the reflecting plate longitudinal central axis line.
6. a kind of Wideband double frequency mobile communication base station antenna according to claim 5, it is characterized in that: described low frequency radiation unit also comprises the first L shaped feeder line and the coplanar microstrip line of low frequency radiation unit; Described high frequency radiation unit also comprises the second L shaped feeder line and the coplanar microstrip line of high frequency radiation unit.
7. a kind of Wideband double frequency mobile communication base station antenna according to claim 6, it is characterized in that: the first feeder line, the second feeder line characteristic impedance are 50 Ω; Described antenna radiator is 0.2 λ apart from the height of reflecting plate
1~ 0.5 λ
1The length range of the first feeder line is 0.1 λ
2~ 0.3 λ
2, the length range of the second feeder line is 0.15 λ
3~ 0.4 λ
3The coplanar microstrip line length range of low frequency radiation unit is 0.3 λ
2~ 0.8 λ
2The coplanar microstrip line length range of high frequency radiation unit is 0.25 λ
3~ 0.85 λ
3Wherein, λ
1Be the wavelength of the corresponding free space of high band centre frequency 2.05GHz, λ
2Be the corresponding wavelength of high band centre frequency 0.89GHz, wherein λ in the medium substrate
3Be the corresponding wavelength of high band centre frequency 2.05GHz in the medium substrate.
8. a kind of Wideband double frequency mobile communication base station antenna according to claim 1 and 2, it is characterized in that: described feeding network comprises low frequency feeding network, high frequency feeding network; The low frequency feeding network is made of the coaxial line of low frequency microstrip power divider and 4 equal lengths; The high frequency feeding network is made of the coaxial line of high-frequency microstrip power splitter and 8 equal lengths.
9. a kind of Wideband double frequency mobile communication base station antenna according to claim 8, it is characterized in that: described low frequency microstrip power divider is one minute four microstrip power divider, inner core one end of coaxial line passes that non-metallic via hole links to each other with the first feeder line on the low frequency radiation unit, the other end links to each other with the microstrip line of low frequency microstrip power divider output port, outer conductor one end of coaxial line links to each other with the coplanar microstrip line of low frequency radiation unit, and the other end links to each other with low frequency microstrip power divider back-side gold possession; Described high-frequency microstrip power splitter is one minute eight microstrip power divider, inner core one end of coaxial line passes that non-metallic via hole links to each other with the second feeder line on the high frequency radiation unit, the other end links to each other with the microstrip line of high-frequency microstrip power splitter output port, outer conductor one end of coaxial line links to each other with the coplanar microstrip line of high frequency radiation unit, and the other end links to each other with the metal ground at the high-frequency microstrip power splitter back side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201120521785 CN202737094U (en) | 2011-12-13 | 2011-12-13 | Wideband dual-frequency mobile communication base station antenna |
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|---|---|---|---|
| CN 201120521785 CN202737094U (en) | 2011-12-13 | 2011-12-13 | Wideband dual-frequency mobile communication base station antenna |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403572A (en) * | 2011-12-13 | 2012-04-04 | 华南理工大学 | Wideband double frequency mobile communication base station antenna |
| CN103560338A (en) * | 2013-10-25 | 2014-02-05 | 广东博纬通信科技有限公司 | Multi-band array antenna compact in structure |
| CN105977652A (en) * | 2016-07-07 | 2016-09-28 | 京信通信技术(广州)有限公司 | Double-frequency array antenna |
| CN107230827A (en) * | 2017-05-31 | 2017-10-03 | 深圳三星通信技术研究有限公司 | A kind of half-wave dipole, radiating element and antenna |
| CN110649376A (en) * | 2019-09-06 | 2020-01-03 | 维沃移动通信有限公司 | Antenna and electronic equipment |
| CN115133268A (en) * | 2021-03-27 | 2022-09-30 | 佛山市南海微波通讯设备有限公司 | Roadside parking space automatic identification system antenna |
| CN116111339A (en) * | 2023-04-12 | 2023-05-12 | 华南理工大学 | Multi-band tag antenna |
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2011
- 2011-12-13 CN CN 201120521785 patent/CN202737094U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403572A (en) * | 2011-12-13 | 2012-04-04 | 华南理工大学 | Wideband double frequency mobile communication base station antenna |
| CN102403572B (en) * | 2011-12-13 | 2013-09-25 | 华南理工大学 | Wideband double frequency mobile communication base station antenna |
| CN103560338A (en) * | 2013-10-25 | 2014-02-05 | 广东博纬通信科技有限公司 | Multi-band array antenna compact in structure |
| CN103560338B (en) * | 2013-10-25 | 2016-06-01 | 广东博纬通信科技有限公司 | The multi-band array antenna of a kind of compact construction |
| CN105977652A (en) * | 2016-07-07 | 2016-09-28 | 京信通信技术(广州)有限公司 | Double-frequency array antenna |
| CN107230827A (en) * | 2017-05-31 | 2017-10-03 | 深圳三星通信技术研究有限公司 | A kind of half-wave dipole, radiating element and antenna |
| CN110649376A (en) * | 2019-09-06 | 2020-01-03 | 维沃移动通信有限公司 | Antenna and electronic equipment |
| CN110649376B (en) * | 2019-09-06 | 2023-06-09 | 维沃移动通信有限公司 | Antenna and electronic equipment |
| CN115133268A (en) * | 2021-03-27 | 2022-09-30 | 佛山市南海微波通讯设备有限公司 | Roadside parking space automatic identification system antenna |
| CN116111339A (en) * | 2023-04-12 | 2023-05-12 | 华南理工大学 | Multi-band tag antenna |
| CN116111339B (en) * | 2023-04-12 | 2023-06-09 | 华南理工大学 | Multi-band tag antenna |
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