CN210805995U - Miniaturized one-low four-high ultra-wideband multi-port base station antenna - Google Patents
Miniaturized one-low four-high ultra-wideband multi-port base station antenna Download PDFInfo
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- CN210805995U CN210805995U CN201922435286.7U CN201922435286U CN210805995U CN 210805995 U CN210805995 U CN 210805995U CN 201922435286 U CN201922435286 U CN 201922435286U CN 210805995 U CN210805995 U CN 210805995U
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Abstract
The utility model belongs to the technical field of base station antenna, concretely relates to miniaturized one low four high super wide band multiport base station antenna, including the bottom plate, the bottom plate both sides are equipped with reflecting plate one and reflecting plate two respectively, are equipped with low frequency radiation antenna array, high frequency radiation antenna array one, high frequency radiation antenna array two, high frequency radiation antenna array three and high frequency radiation antenna array four that are parallel to each other on the bottom plate, and each array includes a plurality of equidistance array one-line low frequency oscillator, high frequency oscillator one, high frequency oscillator two, high frequency oscillator three and high frequency oscillator four respectively; the low-frequency radiation antenna array is arranged on the bottom plate in the middle; the high-frequency radiation antenna array I and the high-frequency radiation antenna array form a straight line to form a first array, the first array is arranged between the low-frequency radiation antenna array and the reflector plate I, the high-frequency radiation antenna array III and the high-frequency radiation antenna array form a straight line to form a second array, and the second array is arranged between the low-frequency radiation antenna array and the reflector plate II.
Description
Technical Field
The utility model belongs to the technical field of the base station antenna, concretely relates to miniaturized one hangs down super wide band multiport base station antenna of four highs.
Background
In recent years, with the rapid development of global wireless communication technology, the demand for wireless communication has been increasing. At present, two LTE systems exist in China, namely TDD LTE and FDD LTE. With the development of LTE network construction, the hybrid networking mode is a future networking mode of three operators in China. In the background of hybrid networking, increasing frequency bands inevitably leads to the problems of more and more complex antenna feed systems, difficult antenna deployment and the like. Therefore, domestic operators want to use multiple systems to share stations and multiple systems to share antennas to realize fast network establishment.
At present, due to the special requirements of ultra-wideband radio communication, higher requirements are put on antenna theory and implementation technology. Electrical performance criteria such as input impedance matching, gain, lobe width, side lobe level, and directional coefficient are becoming more demanding. The ultra-wideband base station antenna needs to maintain low standing waves and stable directional patterns in an ultra-wideband, which makes the design level requirements of the ultra-wideband antenna more strict. How to design a miniaturized and cost-effective ultra-wideband base station antenna has become the focus of the base station antenna research at present.
The ultra-wideband antenna makes multi-system co-station and multi-system co-antenna possible, which also solves the problem of difficult site selection of the base station for operators and can reduce the cost at the same time. Therefore, under the background, a compact miniaturized one-low four-high ultra-wideband multi-port base station antenna is provided, which is beneficial to realizing communication capacity expansion and improving communication quality, adapts to the data traffic of future LTE surge, and meets the requirements of operators on ultra-wideband antennas.
SUMMERY OF THE UTILITY MODEL
In order to provide a compact miniaturized super wide band multiport base station antenna, and can support a low frequency channel and four high frequency channels simultaneously, the utility model discloses a miniaturized one low four high super wide band multiport base station antenna sets up the low frequency radiation antenna array between two parties on the bottom plate that both sides were equipped with reflecting plate one and reflecting plate two respectively to set up the first array of constituteing by high frequency radiation antenna array one and high frequency radiation antenna array two between low frequency radiation antenna array and reflecting plate one and reflecting plate two respectively, and the second array of constituteing by high frequency radiation antenna array three and high frequency radiation antenna array four, this antenna can support a low frequency and four high frequencies simultaneously, accord with compact miniaturization, the design trend of practicing thrift, improved the frequency spectrum utilization of antenna, have good directional diagram coverage performance simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a miniaturized one-low-four-high ultra-wideband multiport base station antenna comprises a bottom plate, wherein a first reflecting plate and a second reflecting plate are respectively arranged on two sides of the bottom plate, a low-frequency radiation antenna array, a first high-frequency radiation antenna array, a second high-frequency radiation antenna array, a third high-frequency radiation antenna array and a fourth high-frequency radiation antenna array which are parallel to each other are arranged on the bottom plate, and the low-frequency radiation antenna array, the first high-frequency radiation antenna array, the second high-frequency radiation antenna array, the third high-frequency radiation antenna array and the fourth high-frequency radiation antenna array respectively comprise a plurality of low-frequency oscillators, first high-frequency oscillators, second high-frequency oscillators; the low-frequency radiation antenna array is arranged on the bottom plate in the middle; the first high-frequency radiation antenna array and the second high-frequency radiation antenna array are located on a straight line to form a first array, the first array is arranged between the low-frequency radiation antenna array and the first reflecting plate, the third high-frequency radiation antenna array and the fourth high-frequency radiation antenna array are located on a straight line to form a second array, and the second array is arranged between the low-frequency radiation antenna array and the second reflecting plate.
Preferably, the low-frequency radiation antenna array includes 10 to 15 low-frequency elements, the first high-frequency radiation antenna array includes 10 to 20 first high-frequency elements, the second high-frequency radiation antenna array includes 10 to 20 second high-frequency elements, the third high-frequency radiation antenna array includes 10 to 20 third high-frequency elements, and the fourth high-frequency radiation antenna array includes 10 to 20 fourth high-frequency elements.
Preferably, short isolating bars are arranged between the low-frequency oscillators, long isolating bars I are arranged on two sides of the first array and the second array, long isolating bars II are arranged between the low-frequency radiation antenna array and the adjacent long isolating bars I, and U-shaped isolating pieces are arranged on two sides of part of the high-frequency oscillators I, two sides of part of the high-frequency oscillators II, two sides of part of the high-frequency oscillators III and two sides of part of the high-frequency oscillators IV.
Preferably, the top of each of the first high-frequency oscillator, the second high-frequency oscillator, the third high-frequency oscillator and the fourth high-frequency oscillator is provided with a circular guiding sheet, and the vertical distance from the guiding sheet to the oscillator is half of the height of the oscillator.
Preferably, the second long isolation bar protrudes upward at a position corresponding to the oscillator arm of the low-frequency oscillator to form a first convex plate.
Preferably, the center frequencies of the low-frequency radiation antenna array, the high-frequency radiation antenna array i, the high-frequency radiation antenna array ii, the high-frequency radiation antenna array iii and the high-frequency antenna array iv are respectively f1, f2, f3, f4 and f5, the working frequency band of the low-frequency radiation antenna array is 690MHz-960MHz, and the working frequency bands of the high-frequency radiation antenna array i, the high-frequency radiation antenna array ii, the high-frequency radiation antenna array iii and the high-frequency antenna array iv are 1710MHz-2700 MHz.
Preferably, the first reflection plate and the second reflection plate are protruded upwards at positions corresponding to the oscillator arms of part of the low-frequency oscillators to form a second convex plate, the height of the second convex plate is larger than that of the first convex plate, the length of the second convex plate is L1, and the L1 is 0.5-0.6 times of the wavelength of f 1.
Preferably, the distance between the centers of the low-frequency vibrators is d1, and the d1 is 0.65-0.7 times the wavelength of f 1.
Preferably, the distance between the centers of the first high-frequency oscillators is d2, d2 is 0.8 to 0.95 times the wavelength, the distance between the centers of the second high-frequency oscillators is d3, d3 is 0.8 to 0.95 times the wavelength, the distance between the centers of the third high-frequency oscillators is d4, d4 is 0.8 to 0.95 times the wavelength, the distance between the centers of the fourth high-frequency oscillators is d5, and d5 is 0.8 to 0.95 times the wavelength.
Preferably, the vertical distances from the center of the low-frequency radiation antenna array to the centers of the first array and the second array are d6, and the d6 is 0.6-0.65 times the wavelength of f2, f3, f4 or f 5.
The utility model discloses following beneficial effect has:
(1) the utility model discloses a low four high super broadband multiport base station antenna sets up low frequency radiation antenna array in the middle on the bottom plate that both sides are equipped with reflecting plate one and reflecting plate two respectively, and set up the first array that comprises high frequency radiation antenna array one and high frequency radiation antenna array two respectively between low frequency radiation antenna array and reflecting plate one and reflecting plate two, and the second array that comprises high frequency radiation antenna array three and high frequency radiation antenna array four, has improved the frequency spectrum utilization ratio of antenna, has good directional diagram coverage performance simultaneously;
(2) the utility model discloses a low four high super wide band multiport base station antenna has saved antenna space and material cost greatly from the antenna inner structure, and this antenna has compact miniaturized characteristics, has reduced the antenna cost, possess ultra wide band and good electrical property simultaneously, can satisfy the demand in market;
(3) the utility model discloses set out from the aspect of antenna performance optimization, through set up the parting strip in low frequency array both sides and high frequency array both sides, can effectively reduce the boundary effect between the antenna array and reduce the cross coupling nature of high frequency array and low frequency array to this improves continuity, reliability and the stability of antenna network, and the setting of flange can promote the front-to-back ratio index of antenna effectively moreover.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a perspective view of the present invention;
fig. 2 is a front view of the present invention;
fig. 3 is a right side view of the present invention;
fig. 4 is a bottom view (omitted view) of the present invention;
fig. 5 is a simulated horizontal plane directional diagram of antennas 698MHz, 790MHz, and 920MHz of the present invention;
fig. 6 is a simulated vertical plane directional diagram of antennas 698MHz, 790MHz, and 920MHz of the present invention;
FIG. 7 is a simulated horizontal plane directional diagram of the 2040MHz, 2400MHz, and 2690MHz antennas of the present invention;
FIG. 8 is a simulated vertical plane pattern of the 2040MHz, 2400MHz, and 2690MHz antennas of the present invention;
in the figure: 1. a base plate; 21. a first reflecting plate; 22. a second reflecting plate; 23. a convex plate II; 3. a low-frequency oscillator; 41. a first high-frequency oscillator; 42. a high-frequency oscillator II; 43. a high-frequency oscillator III; 44. a high-frequency oscillator IV; 51. short spacer bars; 52. a U-shaped spacer; 61. a first long isolating strip; 62. a second long isolating strip; 7. to the sheet.
Detailed Description
The present invention will now be described in further detail with reference to examples.
A miniaturized one-low four-high ultra-wideband multiport base station antenna is shown in figure 1 and comprises a bottom plate 1, wherein a first reflecting plate 21 and a second reflecting plate 22 are respectively arranged on two sides of the bottom plate 1, a low-frequency radiation antenna array, a high-frequency radiation antenna array I, a high-frequency radiation antenna array II, a high-frequency radiation antenna array III and a high-frequency radiation antenna array IV which are parallel to each other are arranged on the bottom plate 1, and the low-frequency radiation antenna array, the high-frequency radiation antenna array I, the high-frequency radiation antenna array II, the high-frequency radiation antenna array III and the high-frequency radiation antenna array IV respectively comprise a plurality of low-frequency oscillators 3, high-frequency oscillators 41, high-frequency oscillators 42, high; the low-frequency radiation antenna array is arranged on the bottom plate 1 in the middle; the first high-frequency radiation antenna array and the second high-frequency radiation antenna array are located on a straight line to form a first array, the first array is arranged between the low-frequency radiation antenna array and the first reflecting plate 21, the third high-frequency radiation antenna array and the fourth high-frequency radiation antenna array are located on a straight line to form a second array, and the second array is arranged between the low-frequency radiation antenna array and the second reflecting plate 22.
In a specific embodiment, the low-frequency radiation antenna array comprises 10-15 low-frequency elements 3, the high-frequency radiation antenna array I comprises 10-20 high-frequency elements I41, the high-frequency radiation antenna array II comprises 10-20 high-frequency elements II 42, the high-frequency radiation antenna array III comprises 10-20 high-frequency elements III 43, and the high-frequency radiation antenna array IV comprises 10-20 high-frequency elements IV 44. In a specific embodiment, the specific number of the elements depends on the antenna gain requirements of the low frequency band and the high frequency band of the whole antenna.
In a specific embodiment, as shown in fig. 1-3, short spacers 51 are disposed between the low-frequency oscillators 3, long spacers 61 are disposed on both sides of the first array and the second array, long spacers 62 are disposed between the low-frequency radiating antenna array and the adjacent long spacers 61, and u-shaped spacers 52 are disposed on both sides of a portion of the high-frequency oscillators 41, both sides of a portion of the high-frequency oscillators 42, both sides of a portion of the high-frequency oscillators 43, and both sides of a portion of the high-frequency oscillators 44. The arrangement of the short isolating strips 51 and the long isolating strips 62 can effectively reduce the boundary effect between antenna arrays and reduce the mutual coupling between a high-frequency array and a low-frequency array, so that the continuity, reliability and stability of the antenna network are improved. By adjusting the distance between the first long isolating strip 61 and the high-frequency radiating array, the wave width of the antenna can be correspondingly adjusted, so that the continuity, reliability and stability of the antenna network are improved, and in a specific embodiment, the distance between the first long isolating strip 61 and the center of the first array and the distance between the first long isolating strip 61 and the center of the second array are 45-50 mm. In addition, the distance between the U-shaped isolating piece 52 and the high-frequency oscillator can be adjusted to adjust the isolation of the high-frequency radiation array, and in the specific embodiment, the distance between the U-shaped isolating piece 52 and the center of the high-frequency oscillator is 0.4-0.6 times of the wavelength of the high-frequency center frequency. In particular embodiments, the placement, length, and height of the various spacer bars and spacers may be determined by commissioning.
In a specific embodiment, as shown in fig. 1, the top parts of the first high-frequency oscillator 41, the second high-frequency oscillator 42, the third high-frequency oscillator 43 and the fourth high-frequency oscillator 44 are all provided with the guide sheet 7, the guide sheet 7 is circular, and the vertical distance from the guide sheet 7 to the oscillators is half of the height of the oscillators. The arrangement of the guide sheet 7 and the U-shaped isolating piece 52 can greatly reduce the standing wave of the high-frequency radiating array and improve the isolation of the high-frequency radiating array, and the electric indexes of low standing wave and high isolation of the ultra-wide-band antenna are met, so that the electric performance index of the high-frequency radiating unit is effectively improved, and the integral electric performance of the antenna is improved.
In a specific embodiment, as shown in fig. 1, the second long spacer 62 protrudes upward at a position corresponding to the oscillator arm of the low frequency oscillator 3 to form a first protruding plate 621. The arrangement of the first convex plate 621 can effectively improve the front-to-back ratio index of the antenna and improve the radiation performance of the low-frequency radiation array.
In a specific embodiment, the center frequencies of the low-frequency radiation antenna array, the high-frequency radiation antenna array i, the high-frequency radiation antenna array ii, the high-frequency radiation antenna array iii and the high-frequency antenna array iv are respectively f1, f2, f3, f4 and f5, the operating frequency band of the low-frequency radiation antenna array is 690MHz-960MHz, and the operating frequency bands of the high-frequency radiation antenna array i, the high-frequency radiation antenna array ii, the high-frequency radiation antenna array iii and the high-frequency antenna array iv are 1710MHz-2700 MHz.
In a specific embodiment, as shown in fig. 4, the first and second reflection plates 21 and 22 are protruded upward at positions corresponding to the oscillator arms of the partial low frequency oscillator 3 to form a second convex plate 23, the height of the second convex plate 23 is greater than that of the first convex plate 621, the length of the second convex plate 23 is L1, and L1 is 0.25-0.5 times the wavelength of f 1.
In a specific embodiment, as shown in fig. 2, the distance between the centers of the low frequency vibrators 3 is d1, and d1 is 0.65-0.7 times the wavelength of f 1.
In a specific embodiment, as shown in fig. 2, the distance between the centers of the first high frequency vibrators 41 is d2, the distance between d2 is 0.8-0.95 times the wavelength, the distance between the centers of the second high frequency vibrators 42 is d3, the distance between d3 is 0.8-0.95 times the wavelength, the distance between the centers of the third high frequency vibrators 43 is d4, the distance between d4 is 0.8-0.95 times the wavelength, the distance between the centers of the fourth high frequency vibrators 44 is d5, and the distance between d5 is 0.8-0.95 times the wavelength.
In a specific embodiment, as shown in fig. 2, the vertical distances from the center of the low frequency radiating antenna array to the centers of the first array and the second array are both d6, and d6 is 0.6-0.65 times the wavelength of f2, f3, f4 or f 5. In a specific embodiment, d6 is 85-90 mm.
In a specific embodiment, the length of the bottom plate 1 may be 2600-450 mm, the width thereof may be 340-450mm, the lengths of the first and second reflective plates 21 and 22 are equal to the length of the bottom plate 1, the length of the short isolation bar 51 may be 190-200mm, the length of the first long isolation bar 61 may be 2000-2300mm, the length of the second long isolation bar 62 may be 2000-2200mm, and the length of the U-shaped isolation member 52 may be 70-90 mm.
In a specific embodiment, the low-frequency oscillator is a low-frequency-band ultra-wide-band cross-shaped aluminum alloy die-cast oscillator, and the high-frequency oscillator is a high-frequency-band ultra-wide-band half-wave metal die-cast oscillator. The low-frequency oscillator and the high-frequency oscillator in the form have the characteristics of wide frequency band, good impedance matching, small loss and the like, and can reduce the standing-wave ratio.
As can be seen from fig. 5-8, the vertical plane and horizontal plane directional diagram performance of the antenna in the embodiment of the present invention is superior, and is an ideal and practical solution for the base station antenna.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a miniaturized one hangs down four high ultra-wideband multiport base station antennas, includes bottom plate (1), the both sides of bottom plate (1) are equipped with reflecting plate one (21) and reflecting plate two (22) respectively, its characterized in that: the high-frequency radiating antenna comprises a bottom plate (1), a high-frequency radiating antenna array I, a high-frequency radiating antenna array II, a high-frequency radiating antenna array III and a high-frequency radiating antenna array IV, wherein the bottom plate (1) is provided with a low-frequency radiating antenna array, a high-frequency radiating antenna array I, a high-frequency radiating antenna array II, a high-frequency radiating antenna array III and a high-frequency radiating antenna array IV which are parallel to each other, and the low-frequency radiating antenna array, the high-frequency radiating antenna array I, the high-frequency radiating antenna array II, the high-frequency radiating antenna array III and the high-; the low-frequency radiation antenna array is arranged on the bottom plate (1) in the middle; the first high-frequency radiation antenna array and the second high-frequency radiation antenna array are located on the same straight line to form a first array, the first array is arranged between the low-frequency radiation antenna array and the first reflecting plate (21), the third high-frequency radiation antenna array and the fourth high-frequency radiation antenna array are located on the same straight line to form a second array, and the second array is arranged between the low-frequency radiation antenna array and the second reflecting plate (22).
2. The miniaturized, low-four high ultra-wideband multi-port base station antenna of claim 1, wherein: the low-frequency radiation antenna array comprises 10-15 low-frequency elements (3), the high-frequency radiation antenna array I comprises 10-20 high-frequency elements I (41), the high-frequency radiation antenna array II comprises 10-20 high-frequency elements II (42), the high-frequency radiation antenna array III comprises 10-20 high-frequency elements III (43), and the high-frequency radiation antenna array IV comprises 10-20 high-frequency elements IV (44).
3. The miniaturized, low-four high ultra-wideband multi-port base station antenna of claim 1, wherein: short isolating bars (51) are arranged between the low-frequency oscillators (3), long isolating bars I (61) are arranged on two sides of the first array and the second array, long isolating bars II (62) are arranged between the low-frequency radiation antenna array and the adjacent long isolating bars I (61), and U-shaped isolating pieces (52) are arranged on two sides of a part of the high-frequency oscillators I (41), two sides of a part of the high-frequency oscillators II (42), two sides of a part of the high-frequency oscillators III (43) and two sides of a part of the high-frequency oscillators IV (44).
4. The miniaturized, low-four high ultra-wideband multi-port base station antenna of claim 3, wherein: the top of the high-frequency oscillator I (41), the top of the high-frequency oscillator II (42), the top of the high-frequency oscillator III (43) and the top of the high-frequency oscillator IV (44) are respectively provided with a guide piece (7), the guide pieces (7) are circular, and the vertical distance from the guide pieces (7) to the oscillators is half of the height of the oscillators.
5. The miniaturized, low-four high ultra-wideband multi-port base station antenna of claim 3, wherein: and the second long isolating strip (62) protrudes upwards at a position corresponding to the vibrator arm of the low-frequency vibrator (3) to form a first convex plate (621).
6. The miniaturized, low-four high ultra-wideband multi-port base station antenna of claim 1, wherein: the central frequency of the low-frequency radiation antenna array, the high-frequency radiation antenna array I, the high-frequency radiation antenna array II, the high-frequency radiation antenna array III and the high-frequency antenna array IV is respectively f1, f2, f3, f4 and f5, the working frequency range of the low-frequency radiation antenna array is 690MHz-960MHz, and the working frequency range of the high-frequency radiation antenna array I, the high-frequency radiation antenna array II, the high-frequency radiation antenna array III and the high-frequency antenna array IV is 1710MHz-2700 MHz.
7. The miniaturized, low-four high ultra-wideband multi-port base station antenna of claim 6, wherein: the first reflecting plate (21) and the second reflecting plate (22) are protruded upwards at positions corresponding to the oscillator arms of part of the low-frequency oscillators (3) to form a second convex plate (23), the height of the second convex plate (23) is larger than that of the first convex plate (621), the length of the second convex plate (23) is L1, and L1 is 0.5-0.6 times of the wavelength of f 1.
8. The miniaturized, low-four high ultra-wideband multi-port base station antenna of claim 6, wherein: the distance between the vibrator centers of the low-frequency vibrators (3) is d1, and the d1 is 0.65-0.7 times the wavelength of f 1.
9. The miniaturized, low-four high ultra-wideband multi-port base station antenna of claim 6, wherein: the distance between the centers of the first high-frequency vibrators (41) is d2, d2 is 0.8-0.95 times of wavelength, the distance between the centers of the second high-frequency vibrators (42) is d3, d3 is 0.8-0.95 times of wavelength, the distance between the centers of the third high-frequency vibrators (43) is d4, d4 is 0.8-0.95 times of wavelength, the distance between the centers of the fourth high-frequency vibrators (44) is d5, and d5 is 0.8-0.95 times of wavelength.
10. The miniaturized, low-four high ultra-wideband multi-port base station antenna of claim 6, wherein: the vertical distances from the center of the low-frequency radiation antenna array to the centers of the first array and the second array are both d6, and the d6 is 0.6-0.65 times the wavelength of f2, f3, f4 or f 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922435286.7U CN210805995U (en) | 2019-12-30 | 2019-12-30 | Miniaturized one-low four-high ultra-wideband multi-port base station antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922435286.7U CN210805995U (en) | 2019-12-30 | 2019-12-30 | Miniaturized one-low four-high ultra-wideband multi-port base station antenna |
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| CN210805995U true CN210805995U (en) | 2020-06-19 |
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