CN103682597B - A kind of wide bandwidth base station antenna radiating element and antenna array - Google Patents
A kind of wide bandwidth base station antenna radiating element and antenna array Download PDFInfo
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- CN103682597B CN103682597B CN201310677397.3A CN201310677397A CN103682597B CN 103682597 B CN103682597 B CN 103682597B CN 201310677397 A CN201310677397 A CN 201310677397A CN 103682597 B CN103682597 B CN 103682597B
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Abstract
A kind of wide bandwidth base station antenna radiating element and antenna array, radiating element comprises symmetrical radiation arm, feed tab, hollow Ba Lun pillar stiffener, hollow feed pillar stiffener, feed opening, feed tab mounting block and feed concentric cable, two mutual decussate distributions of symmetrical radiation arm, and two symmetrical radiation arms are rotationally symmetrical relative to radiating element center, in each symmetrical radiation arm, an arm connects a hollow feed pillar stiffener, and another arm connects a hollow Ba Lun pillar stiffener; Described feed tab is two, the secondary upright metallic sheet of each feed tab is fixed in a hollow Ba Lun pillar stiffener, main upright metallic sheet is fixed in a hollow feed pillar stiffener, the bottom of the hollow feed pillar stiffener of every root is provided with feed opening, the outer conductor of described feed concentric cable is fixed on described feed opening, and the interior conductor of described feed concentric cable is connected with the secondary upright metallic sheet of a feed tab.
Description
Technical field
The present invention relates to radio communication base station field of antenna, particularly relate to a kind of broadband base station antenna radiating element, the present invention also relates to a kind of antenna array adopting this radiating element.
Background technology
Along with the fast development of mobile communication technology, the standard of mobile communication gets more and more, and the frequency range that the LTE (LongTermEvolution, long-term evolution) of development in recent years adopts has reached 2500-2690MHz. On the other hand, along with increasing of mobile communication standard, the antenna that base station iron tower is installed also gets more and more, and a lot of local steel tower has not had position to be supplied to LTE antenna installation. A solution adopts wide frequency antenna, and namely common antenna can cover the frequency range of multiple communication standard, can significantly save a day space, face like this, reduces the difficulty of installation. Wide frequency antenna realize it is crucial that radiating element, existing radiation generally covers the frequency range of the such relative narrower of 1710-2170MHz or 2500-2690MHz, and the radiating element that can cover 1710-2690MHz also compares shortage.
Except bandwidth, another problem that antenna for base station faces is intermodulation. The intermodulation performance of antenna for base station determines antenna to the interference level of other frequency ranges, is antenna for base station very crucial index. Meanwhile, intermodulation index is also technological difficulties of antenna for base station. The intermodulation performance of antenna for base station, as one of parts producing intermodulation products, is had material impact by radiating element.
In order to implementation space diversity or MIMO(Multi-inputMulti-output in a secondary antenna for base station, multiple-input and multiple-output), antenna for base station often adopts dual-polarization radiating unit as fundamental radiation unit. Dual-polarization radiating unit can reduce the antenna amount on website, reduces antenna volume and weight, but the directional pattern of dual polarization antenna two direction of polarization often consistence is not good, cause the covering of two passages inconsistent, thus affect the coverage effect of website.
Summary of the invention
For solving the above technical problem, there is it is desirable to provide a kind of the wide bandwidth base station antenna radiating element of excellent intermodulation performance, and a kind of base-station antenna array adopting this radiating element.
A kind of wide bandwidth base station antenna radiating element of the technical scheme of the present invention, comprise symmetrical radiation arm, feed tab, hollow Ba Lun pillar stiffener, hollow feed pillar stiffener, feed opening, feed tab mounting block and feed concentric cable, two mutual decussate distributions of symmetrical radiation arm, and two symmetrical radiation arms are rotationally symmetrical relative to radiating element center, in each symmetrical radiation arm, an arm connects a hollow feed pillar stiffener, and another arm connects a hollow Ba Lun pillar stiffener; Described feed tab is two, each feed tab is made up of main upright metallic sheet, secondary upright metallic sheet and horizontal metal sheet, horizontal metal sheet connects main upright metallic sheet and secondary upright metallic sheet, the secondary upright metallic sheet of each feed tab is fixed in a hollow Ba Lun pillar stiffener, main upright metallic sheet is fixed in a hollow feed pillar stiffener, the bottom of the hollow feed pillar stiffener of every root is provided with feed opening, the outer conductor of described feed concentric cable is fixed on feed opening, and the interior conductor of described feed concentric cable is connected with the main upright metallic sheet of a feed tab.
And, described hollow Ba Lun pillar stiffener and hollow feed pillar stiffener are provided with notch in the junction with described symmetrical radiation arm respectively, and all notch degree of depth are identical.
And, two feed tab are cross arranged crosswise, and the horizontal metal sheet of one of them feed tab is above the horizontal metal sheet of another feed tab; The horizontal metal sheet being positioned at lower section is designated as lower feed tab, at upper opening; The horizontal metal sheet being positioned at top is designated as feed tab, in lower openings; Upper feed tab and lower feed tab are intersected at opening place.
And, described feed tab mounting block comprises fixing post, permanent seat and fixing card, main upright metallic sheet, the secondary upright metallic sheet of each feed tab are each passed through the through hole arranged in the middle of a fixing post, described fixing post is nested in hollow Ba Lun pillar stiffener or hollow feed pillar stiffener, two feed tab are spaced from each other by permanent seat, by fixing, card blocks the level part of feed tab, and described fixing post, permanent seat and fixing card are integrated shaping.
Present invention also offers according to the antenna array that above-mentioned wide bandwidth base station antenna radiating element realizes, some wide bandwidth base station antenna radiating elements are linearly arranged on reflector, each wide bandwidth base station antenna radiating element is separated by plastic feet and reflector, the through hole of the hollow feed pillar stiffener of wide bandwidth base station antenna radiating element on reflector, separating by plastic feet between hollow Ba Lun pillar stiffener and reflector, each wide bandwidth base station antenna radiating element is fixed on reflector by set screw.
And, the symmetrical radiation arm of each wide bandwidth base station antenna radiating element is along �� 45oDirection is arranged, the upper feed tab of adjacent wide bandwidth base station antenna radiating element is contrary with the placement position of lower feed tab.
Or, every two adjacent wide bandwidth base station antenna radiating elements form one group of radiation submatrix, often in group radiation submatrix, the upper feed tab of two wide bandwidth base station antenna radiating elements is identical with lower feed tab placement position, and it is contrary that the upper feed tab of adjacent radiation submatrix middle width strip base station antenna radiation unit and lower feed tab place position.
The present invention provides a kind of has big bandwidth and the base station antenna radiation unit of high intermodulation index, and a kind of antenna array adopting this kind of radiating element, by the cross arrangement of feed tab, this array antenna is listed in two direction of polarization to have high impedance behavior and radiance consistence. By adjusting the dimensional parameters of feed tab, it is possible to realize big bandwidth. Owing to feed tab does not directly contact with radiator, it is possible to realize excellent intermodulation index.
Accompanying drawing explanation
Fig. 1 is the perspective view of the wide bandwidth base station antenna radiating element of the embodiment of the present invention;
Fig. 2 is the bottom construction schematic diagram of the wide bandwidth base station antenna radiating element of the embodiment of the present invention;
Fig. 3 is the structural representation of the radiator of the wide bandwidth base station antenna radiating element of the embodiment of the present invention;
Fig. 4 is the structural representation of the feed tab of the wide bandwidth base station antenna radiating element of the embodiment of the present invention;
Fig. 5 is the structural representation of the upper feed tab of the wide bandwidth base station antenna radiating element of the embodiment of the present invention;
Fig. 6 is the structural representation of the lower feed tab of the wide bandwidth base station antenna radiating element of the embodiment of the present invention;
Fig. 7 is feed tab mounting block and the feed tab structural representation of the wide bandwidth base station antenna radiating element of the embodiment of the present invention;
Fig. 8 is the structural representation of antenna array first embodiment of the embodiment of the present invention;
The antenna array first embodiment adjacent radiation unit feed tab that Fig. 9 is the embodiment of the present invention arranges schematic diagram;
Figure 10 is the structural representation of antenna array the 2nd embodiment of the embodiment of the present invention;
In figure: the symmetrical radiation arm of 1-; 2-feed tab; The hollow Ba Lun pillar stiffener of 3-; The hollow feed pillar stiffener of 4-; 5-notch; 6-feed opening, the upper feed tab of 7-, feed tab under 8-, the main upright metallic sheet of 9-, the secondary upright metallic sheet of 10-, the upper horizontal metal sheet of 11-, horizontal metal sheet under 12-, 13-upper shed, 14-lower opening, 15-feed tab mounting block; 16-fixes post; 17-through hole, 18-permanent seat; The fixing card of 19-; 20-plastic feet; 21-reflector; 22-set screw; 23-feed concentric cable, 24-coaxial cable outer conductor, 25-inner conductor, 26-radiating element, 27-reflector through hole, 28-radiates submatrix.
Embodiment
In conjunction with the accompanying drawings and embodiments, technical solution of the present invention is below provided to specifically describe.
See Fig. 1, Fig. 2, the broadband base station antenna radiating element of the present invention comprises symmetrical radiation arm 1, feed tab 2, hollow Ba Lun pillar stiffener 3, hollow feed pillar stiffener 4, feed tab mounting block 15, plastic feet 20 and feed concentric cable 23, symmetrical radiation arm 1 has two, two symmetrical radiation arm 1 decussate distributions mutually, composition dual polarised radiation body. Two symmetrical radiation arms 1 are rotationally symmetrical relative to the center of radiating element, and thus for two direction of polarization, radiator is identical, and this kind of layout can strengthen the consistence between two polarization.
See Fig. 4 to Fig. 6, feed tab 2 has 2, is labeled as feed tab 7 and lower feed tab 8 respectively, and each feed tab 2 is made up of the horizontal metal sheet of two sections of upright metallic sheets and connection two sections of upright metallic sheets. Upper feed tab 7 and lower feed tab 8 are in cross arranged crosswise: the horizontal metal sheet of upper feed tab 7 is designated as horizontal metal sheet 11, the horizontal metal sheet of lower feed tab 8 is designated as lower horizontal metal sheet 12, upper horizontal metal sheet 11 is higher than lower horizontal metal sheet 12, lower horizontal metal sheet 12 opening at an upper portion thereof, it is designated as upper shed 13, upper horizontal metal sheet 11, at its underpart opening, is designated as lower opening 14. Upper shed 13 is corresponding with lower opening 14, and upper feed tab 7 and lower feed tab 8, in the mutual arranged crosswise in opening place, reduce the coupling between two polarization. By controlling upper feed tab 7 and lower feed tab 8 distance in vertical direction, and the degree of depth of upper shed 13 and lower opening 14, it is possible to effectively control the isolation between two polarization. Two sections of upright metallic sheets of each feed tab 2 are respectively the main upright metallic sheet 9 being fixed in a hollow feed pillar stiffener 4 and the secondary upright metallic sheet 10 being fixed in a hollow Ba Lun pillar stiffener 3. A radiating element comprises four pillar stiffeners, comprises two hollow Ba Lun pillar stiffeners 3 and two hollow feed pillar stiffeners 4. Feed tab 2 forms feed Ba Lun with hollow Ba Lun pillar stiffener 3 and hollow feed pillar stiffener 4, provides impedance matching and balance-imbalance conversion for radiating element. Owing to feed tab 2 can make the form of multistage coupling, thus the base station antenna radiation unit of the present invention can realize very big bandwidth.
See Fig. 3, in each symmetrical radiation arm 1, an arm connects a hollow feed pillar stiffener 4, and another arm connects a hollow Ba Lun pillar stiffener 3. The bottom of the hollow feed pillar stiffener 4 of every root is provided with feed opening 6, and the outer conductor 24 of feed concentric cable 23 is fixed on feed opening 6, and the interior conductor 25 of feed concentric cable 23 is connected with the main upright metallic sheet 9 of certain feed tab 2.
For making main upright metallic sheet 9, the secondary upright metallic sheet 10 of feed tab 2 wrap in hollow Ba Lun pillar stiffener 3, hollow feed pillar stiffener 4 respectively, composition band line transmission structure, the height of feed tab 2 should as far as possible lower than the upper radiating surface of symmetrical radiation arm 1. Therefore notch 5 is set in the junction of hollow Ba Lun pillar stiffener 3 and hollow feed pillar stiffener 4 and symmetrical radiation arm 1, feed tab 2 can be made like this to wrap in hollow Ba Lun pillar stiffener 3 and hollow feed pillar stiffener 4 as much as possible, strengthen the impedance matching performance of radiating element. Notch 5 degree of depth on two hollow Ba Lun pillar stiffeners 3 and two hollow feed pillar stiffeners 4 is identical, such an arrangement enhances the consistence between two polarization, and the consistence between same polarization two-arm.
See Fig. 7, feed tab mounting block 15 comprises fixing post 16, and permanent seat 18 and fixing card 19, feed tab mounting block 15 is integrated shaping, and structure is firm, easy for installation. Fixing post 16 has 4, it is provided with through hole 17 in the middle of each fixing post 16, main upright metallic sheet 9 and the secondary upright metallic sheet 10 of each feed tab 2 are each passed through the through hole 17 being arranged in the middle of a fixing post 16, each fixing post 16 respectively correspondence be nested in hollow Ba Lun pillar stiffener 3 or hollow feed pillar stiffener 4, can ensure that feed tab 2 does not offset in hollow Ba Lun pillar stiffener 3 and hollow feed pillar stiffener 4. Upper feed tab 7 and lower feed tab 8 are spaced from each other by permanent seat 18, feed tab 7 and lower feed tab 8 is avoided to contact with each other, the position of upper feed tab 7 and lower feed tab 8 is limited simultaneously, avoid feed tab 7 and lower feed tab 8 position in the horizontal direction to offset. Upper horizontal metal sheet 11 and lower horizontal metal sheet 12 are blocked by fixing card 19, thus avoid feed tab 7 and lower feed tab 8 to move in vertical direction. Owing to upper feed tab 7 and lower feed tab 8 have been carried out spacing by feed tab mounting block 15 in all directions, go up simultaneously feed tab 7 and lower feed tab 8 main upright metallic sheet 9 lower end respectively interior conductor 25 with a feed concentric cable 23 link together, thus the feed structure of the present invention is firm, ensures the stable of radiating element performance.
See Fig. 8 or Figure 10, antenna array can be provided: radiating element provided by the invention is labeled as 26 based on radiating element provided by the invention, some radiating elements 26 are linearly arranged on reflector 21, each radiating element 26 separates by plastic feet 20 and reflector 21, and the hollow feed pillar stiffener 4 of every root on radiating element 26 passes the respective through hole 27 on reflector 21, the hollow feed pillar stiffener 4 of every root is also separated by plastic feet 20 and reflector 21, radiating element 26 is fixed on reflector 21 by set screw 22 through the through hole being arranged on reflector 21 and plastic feet 20. due to electric point of contact only set screw 22 of radiating element 26 with reflector 21, therefore the intermodulation performance of antenna array is excellent. Fig. 8 is the first embodiment of antenna array provided by the invention. see Fig. 8 and Fig. 9, taking the array axis direction of multiple radiating element 26 as 0o, the symmetrical radiation arm 1 of each radiating element 26 is along �� 45oDirection arranges, and the upper feed tab 7 of adjacent radiation unit and the placement direction of lower feed tab 8 are contrary, if the upper feed tab 7 of a front radiating element is along+45oDirection is placed, and lower feed tab 8 is along-45oDirection is placed, then the upper feed tab 7 of next radiating element is along-45oDirection is placed, and lower feed tab 8 is along+45oDirection is placed. Radiator owing to being made up of with pillar stiffener symmetrical radiation arm 1 is consistent in two directions, and in conjunction with arranged in arrays provided by the invention, the performance that antenna for base station two can be made to polarize reaches unanimity, thus strengthens network performance.
Figure 10 is the 2nd embodiment of antenna array provided by the invention. Two radiating elements 26 form one group of radiation submatrix 28, often in group radiation submatrix, the upper feed tab of two radiating elements is identical with lower feed tab placement position, in adjacent radiation submatrix, the upper feed tab of radiating element is contrary with lower feed tab placement position: the upper feed tab 7 namely often organizing two radiating elements 26 in radiation submatrix 28 is identical with lower feed tab 8 placement direction, but in adjacent radiation submatrix 28, the upper feed tab 7 of radiating element 26 is contrary with lower feed tab 8 placement direction. This kind of matrix arrangement can also make two radiances polarized and impedance behavior reach unanimity.
Wide bandwidth base station antenna radiating element provided by the invention can obtain big bandwidth by the height and width adjusting feed tab. Owing to feed tab does not electrically contact with radiating element, thus the intermodulation performance of antenna is excellent. Antenna array provided by the invention, by the cross arrangement of feed tab, enhances impedance and the radiance consistence of two direction of polarization.
Above content is in conjunction with concrete enforcement mode further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations. For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. a wide bandwidth base station antenna radiating element, comprise symmetrical radiation arm, feed tab, hollow Ba Lun pillar stiffener, hollow feed pillar stiffener, feed opening, feed tab mounting block and feed concentric cable, it is characterized in that: two mutual decussate distributions of symmetrical radiation arm, and two symmetrical radiation arms are rotationally symmetrical relative to radiating element center, in each symmetrical radiation arm, an arm connects a hollow feed pillar stiffener, and another arm connects a hollow Ba Lun pillar stiffener; Described feed tab is two, each feed tab is made up of main upright metallic sheet, secondary upright metallic sheet and horizontal metal sheet, horizontal metal sheet connects main upright metallic sheet and secondary upright metallic sheet, the secondary upright metallic sheet of each feed tab is fixed in a hollow Ba Lun pillar stiffener, main upright metallic sheet is fixed in a hollow feed pillar stiffener, main upright metallic sheet, the secondary upright metallic sheet of feed tab wrap in hollow Ba Lun pillar stiffener, hollow feed pillar stiffener respectively, composition band line transmission structure; The height of feed tab is as far as possible lower than the upper radiating surface of symmetrical radiation arm; The bottom of the hollow feed pillar stiffener of every root is provided with feed opening, and the outer conductor of described feed concentric cable is fixed on feed opening, and the interior conductor of described feed concentric cable is connected with the main upright metallic sheet of a feed tab;
Described hollow Ba Lun pillar stiffener and hollow feed pillar stiffener are provided with notch in the junction with described symmetrical radiation arm respectively, and all notch degree of depth are identical, make feed tab wrap in hollow Ba Lun pillar stiffener and hollow feed pillar stiffener as far as possible;
Two feed tab are cross arranged crosswise, and the horizontal metal sheet of one of them feed tab is above the horizontal metal sheet of another feed tab; The horizontal metal sheet being positioned at lower section is designated as lower feed tab, at upper opening; The horizontal metal sheet being positioned at top is designated as feed tab, in lower openings; Upper feed tab and lower feed tab are intersected at opening place; By controlling upper feed tab and lower feed tab distance in vertical direction, and the degree of depth of upper opening and lower openings, control the isolation between two polarization; Described feed tab adopts the form of multistage coupling;
Described feed tab mounting block comprises fixing post, permanent seat and fixing card, two feed tab have been carried out spacing by feed tab mounting block in all directions, comprise the main upright metallic sheet of each feed tab, secondary upright metallic sheet is each passed through the through hole arranged in the middle of a fixing post, described fixing post is nested in hollow Ba Lun pillar stiffener or hollow feed pillar stiffener, ensure that feed tab does not offset in hollow Ba Lun pillar stiffener or hollow feed pillar stiffener, two feed tab are spaced from each other by permanent seat, two feed tab are avoided to contact with each other, the position of two feed tab is limited simultaneously, two feed tab position in the horizontal direction is avoided to offset, by fixing, card blocks the level part of feed tab, avoids two feed tab to move in vertical direction, and described fixing post, permanent seat and fixing card are integrated shaping, the lower end of the main upright metallic sheet of two feed tab respectively interior conductor with a feed concentric cable link together.
2. the antenna array that wide bandwidth base station antenna radiating element realizes according to claim 1, it is characterized in that: some wide bandwidth base station antenna radiating elements are linearly arranged on reflector, each wide bandwidth base station antenna radiating element is separated by plastic feet and reflector, the through hole of the hollow feed pillar stiffener of wide bandwidth base station antenna radiating element on reflector, separate by plastic feet between hollow Ba Lun pillar stiffener and reflector, each wide bandwidth base station antenna radiating element is fixed on reflector by set screw, the electric point of contact of wide bandwidth base station antenna radiating element and reflector only has set screw,
Described wide bandwidth base station antenna radiating element, comprise symmetrical radiation arm, feed tab, hollow Ba Lun pillar stiffener, hollow feed pillar stiffener, feed opening, feed tab mounting block and feed concentric cable, two mutual decussate distributions of symmetrical radiation arm, and two symmetrical radiation arms are rotationally symmetrical relative to radiating element center, in each symmetrical radiation arm, an arm connects a hollow feed pillar stiffener, and another arm connects a hollow Ba Lun pillar stiffener; Described feed tab is two, each feed tab is made up of main upright metallic sheet, secondary upright metallic sheet and horizontal metal sheet, horizontal metal sheet connects main upright metallic sheet and secondary upright metallic sheet, the secondary upright metallic sheet of each feed tab is fixed in a hollow Ba Lun pillar stiffener, main upright metallic sheet is fixed in a hollow feed pillar stiffener, main upright metallic sheet, the secondary upright metallic sheet of feed tab wrap in hollow Ba Lun pillar stiffener, hollow feed pillar stiffener respectively, composition band line transmission structure; The height of feed tab is as far as possible lower than the upper radiating surface of symmetrical radiation arm; The bottom of the hollow feed pillar stiffener of every root is provided with feed opening, and the outer conductor of described feed concentric cable is fixed on feed opening, and the interior conductor of described feed concentric cable is connected with the main upright metallic sheet of a feed tab;
Described hollow Ba Lun pillar stiffener and hollow feed pillar stiffener are provided with notch in the junction with described symmetrical radiation arm respectively, and all notch degree of depth are identical, make feed tab wrap in hollow Ba Lun pillar stiffener and hollow feed pillar stiffener as far as possible;
Two feed tab are cross arranged crosswise, and the horizontal metal sheet of one of them feed tab is above the horizontal metal sheet of another feed tab; The horizontal metal sheet being positioned at lower section is designated as lower feed tab, at upper opening; The horizontal metal sheet being positioned at top is designated as feed tab, in lower openings; Upper feed tab and lower feed tab are intersected at opening place; By controlling upper feed tab and lower feed tab distance in vertical direction, and the degree of depth of upper opening and lower openings, control the isolation between two polarization; Described feed tab adopts the form of multistage coupling;
Described feed tab mounting block comprises fixing post, permanent seat and fixing card, two feed tab have been carried out spacing by feed tab mounting block in all directions, comprise the main upright metallic sheet of each feed tab, secondary upright metallic sheet is each passed through the through hole arranged in the middle of a fixing post, described fixing post is nested in hollow Ba Lun pillar stiffener or hollow feed pillar stiffener, ensure that feed tab does not offset in hollow Ba Lun pillar stiffener or hollow feed pillar stiffener, two feed tab are spaced from each other by permanent seat, two feed tab are avoided to contact with each other, the position of two feed tab is limited simultaneously, two feed tab position in the horizontal direction is avoided to offset, by fixing, card blocks the level part of feed tab, avoids two feed tab to move in vertical direction, and described fixing post, permanent seat and fixing card are integrated shaping, the lower end of the main upright metallic sheet of two feed tab respectively interior conductor with a feed concentric cable link together.
3. antenna array according to claim 2, it is characterised in that: the symmetrical radiation arm of each wide bandwidth base station antenna radiating element is arranged along �� 45 �� of directions, and the upper feed tab of adjacent wide bandwidth base station antenna radiating element is contrary with the placement position of lower feed tab.
4. antenna array according to claim 2, it is characterized in that: every two adjacent wide bandwidth base station antenna radiating elements form one group of radiation submatrix, often in group radiation submatrix, the upper feed tab of two wide bandwidth base station antenna radiating elements is identical with lower feed tab placement position, and it is contrary that the upper feed tab of adjacent radiation submatrix middle width strip base station antenna radiation unit and lower feed tab place position.
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| EP3361567B1 (en) | 2015-10-30 | 2020-08-26 | Huawei Technologies Co., Ltd. | Antenna system |
| CN105449334A (en) * | 2015-12-15 | 2016-03-30 | 成都迅德科技有限公司 | Base station antenna |
| CN106025523B (en) * | 2016-08-09 | 2019-04-12 | 武汉虹信通信技术有限责任公司 | A kind of cross-shaped configuration radiating element and its aerial array |
| CN106654542A (en) * | 2017-03-14 | 2017-05-10 | 武汉虹信通信技术有限责任公司 | Miniature ultra wideband base station antenna unit and antenna array |
| CN108832310A (en) * | 2018-06-26 | 2018-11-16 | 江苏亨鑫科技有限公司 | A kind of broadband dualpolarization radiation unit in multifrequency antenna for base station |
| CN108987927B (en) * | 2018-08-16 | 2023-08-15 | 昆山恩电开通信设备有限公司 | Bowl-shaped antenna radiating unit with space wave-transmitting characteristic |
| CN109257070A (en) * | 2018-09-18 | 2019-01-22 | 张淼淼 | A kind of WCDMA wideband integrated radiation device |
| CN110931951B (en) * | 2018-09-19 | 2023-01-31 | 普罗斯通信技术（苏州）有限公司 | Die-casting radiation device and base station array antenna |
| CN110994147A (en) * | 2019-12-05 | 2020-04-10 | 京信通信技术(广州)有限公司 | Low-frequency radiation unit and antenna |
| CN111048898B (en) * | 2019-12-31 | 2022-12-27 | 京信通信技术(广州)有限公司 | Antenna and radiating element thereof |
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