CN114122718B - Low-frequency oscillator unit and hybrid array antenna - Google Patents
Low-frequency oscillator unit and hybrid array antenna Download PDFInfo
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- CN114122718B CN114122718B CN202010876023.4A CN202010876023A CN114122718B CN 114122718 B CN114122718 B CN 114122718B CN 202010876023 A CN202010876023 A CN 202010876023A CN 114122718 B CN114122718 B CN 114122718B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
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Abstract
The invention discloses a low-frequency oscillator unit and a hybrid array antenna, wherein the low-frequency oscillator unit comprises: the circuit board comprises a base plate, a first circuit and a second circuit, wherein the first circuit is printed on the base plate; the oscillator piece is printed with a second circuit, and the second circuit is electrically connected with the first circuit; the radiating sheet is fixed at the other end of the oscillator sheet and comprises a first radiating surface, a second radiating surface parallel to the first radiating surface and a base material between the first radiating surface and the second radiating surface, two oscillator arms which are symmetrical to each other are arranged on the first radiating surface and the second radiating surface, each oscillator arm comprises two sections of first radiating arms and two sections of second radiating arms, the first radiating arms are made of thick copper foils and thin copper foils in a spaced connection mode, the second radiating arms are made of thin copper foils, and the second circuit is electrically connected with the oscillator arms; the oscillator arm of the first radiation surface and the oscillator arm of the second radiation surface form two orthogonal dipoles. The oscillator arms are mutually coupled through the first radiation arm, so that the oscillator can be miniaturized, and the antenna can be widely applied to the technical field of antennas.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a low-frequency oscillator unit and a hybrid array antenna.
Background
With the wide application of MIMO (Multiple-Input Multiple-Output) technology, 4-channel transmission and reception (4T4R) has become the mainstream configuration of each frequency band of an antenna, and each channel supports 700MHz, 800MHz, and 900MHz, which are hard requirements for co-site and co-location, so that a dual-low frequency dual-polarized base station antenna operating in the 690-960MHz frequency band has become the mainstream model of each telecommunication operator. On the other hand, due to the continuous development of the 5G technology, 2G, 3G, 4G and 5G networks coexist at present, and in order to be compatible with multiple communication systems, save site resources, reduce the number of antennas, and enable systems of multiple different frequency bands to exist simultaneously, base station antennas capable of working at different frequency bands simultaneously need to be used, for example, the working frequency band of the low frequency system is 690-960MHz, and the working frequency band of the high frequency system is 1695-2690 MHz. The traditional low-frequency oscillator is used for realizing circuit matching of an ultra-wideband frequency band, the caliber of the radiation body is large, and the projection area of the radiation body on the reflecting plate is large. Therefore, when the low-frequency oscillator and the high-frequency oscillator form a radiation array, the radiation index of the high-frequency oscillator is seriously deteriorated. An ultra-wideband dual-polarized low-frequency oscillator unit and a multi-band array antenna thereof, with the original application number of 201510791175.3, provides a decoupling low-frequency oscillator with small influence on a high-frequency oscillator, but the oscillator has a longer radiating arm, and the influence between two rows of low frequencies is large, so that the antenna radiating unit is not suitable for being used as an antenna radiating unit with two low-frequency systems. Therefore, how to provide a small-aperture low-frequency oscillator unit for high-frequency decoupling becomes a big problem to be solved urgently.
Disclosure of Invention
In order to solve one of the above problems, an object of the present invention is to provide a low frequency oscillator unit and a hybrid array antenna that can achieve miniaturization of an oscillator.
The technical scheme adopted by the invention is as follows:
a low frequency oscillator unit comprising:
the circuit board comprises a base plate, a first circuit and a second circuit, wherein the first circuit is printed on the base plate;
the oscillator piece is printed with a second circuit, one end of the oscillator piece is fixed on the base plate, and the second circuit is electrically connected with the first circuit;
the radiating patch is fixed at the other end of the oscillator patch and comprises a medium supporting plate, a first radiating surface and a second radiating surface, the first radiating surface and the second radiating surface are arranged on two parallel surfaces of the medium supporting plate, two oscillator arms which are symmetrical to each other are arranged on the first radiating surface and the second radiating surface, each oscillator arm comprises two sections of first radiating arms and two sections of second radiating arms, the first radiating arms are formed by connecting thick copper foils and thin copper foils at intervals, the second radiating arms are formed by thin copper foils, and the second circuit is electrically connected with the oscillator arms; and the oscillator arm of the first radiation surface and the oscillator arm of the second radiation surface form two orthogonal dipoles.
Furthermore, the two sections of first radiation arms and the two sections of second radiation arms enclose a square frame, the two sections of first radiation arms are connected, and the two sections of second radiation arms are connected.
Further, the thin copper foil on the first radiating arm is bent.
Further, the second radiating arm includes a serial stub, a parallel stub and a connecting line, and the connecting line is disposed at two ends of the second radiating arm and is used for connecting with the first radiating arm or the other second radiating arms.
Further, the line length of the parallel stub is between one sixteenth to one quarter wavelength of the high-frequency center frequency.
Furthermore, the radiation sheet is further provided with an open section, the open section is connected with the second circuit on the dipole sheet, and two dipole arms in the same dipole are connected through the open section and the second circuit to form electric coupling.
Further, the second circuit comprises two ground layers and two signal layers, the two ground layers are printed on the first surface of the dipole piece, the two signal layers are printed on the second surface of the dipole piece, and the ground layers and the signal layers form a loop for feeding the two dipole arms in the same dipole.
The other technical scheme adopted by the invention is as follows:
a hybrid array antenna includes
A reflective plate;
the high-frequency two-beam antenna array is arranged on the reflecting plate;
and the low-frequency base station antenna array is arranged on the reflecting plate and consists of the low-frequency oscillator unit.
Further, the high-frequency two-beam antenna array comprises more than two high-frequency radiating element sub-arrays, two adjacent high-frequency radiating element sub-arrays are staggered in the horizontal direction and are arranged at equal intervals in the vertical direction, each high-frequency radiating element sub-array comprises 8 high-frequency oscillator units, the 8 high-frequency oscillator units are arranged in two rows, the low-frequency base station antenna array comprises two rows of low-frequency oscillator units which are arranged side by side, and each row of low-frequency oscillator units are linearly arranged on the reflecting plate at equal intervals;
every row the low frequency oscillator unit is installed between two rows of high frequency oscillator units in the high frequency radiation unit subarray, and the distance between two adjacent rows of high frequency oscillator units is 0.2-0.6 times the distance between two adjacent rows of low frequency oscillator units.
The other technical scheme adopted by the invention is as follows:
A reflective plate;
the high-frequency base station antenna arrays are arranged on two sides of the reflecting plate;
the high-frequency intelligent antenna array is arranged in the center of the reflecting plate;
the low-frequency base station antenna array is arranged between the high-frequency base station antenna array and the high-frequency intelligent antenna array and consists of the low-frequency oscillator units;
the high-frequency base station antenna array consists of two rows of high-frequency oscillator units which are linearly arranged at equal intervals;
the high-frequency intelligent antenna array consists of four rows of high-frequency oscillator units which are linearly arranged at equal intervals, adjacent rows are arranged in a staggered mode in the vertical direction, and the staggered distance is half of the vertical interval of the high-frequency oscillator units;
the low-frequency base station antenna array is composed of two lines of low-frequency oscillator units which are linearly arranged at equal intervals.
The invention has the beneficial effects that: in addition, the thick copper foil on the first radiating arm and the thin copper foil on the second radiating arm form a resonant circuit to prevent high-frequency current from flowing on the oscillator arms, thereby reducing the influence of the low-frequency oscillator on a high-frequency directional diagram and improving the isolation between high frequency and low frequency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description is made on the drawings of the embodiments of the present invention or the related technical solutions in the prior art, and it should be understood that the drawings in the following description are only for convenience and clarity of describing some embodiments in the technical solutions of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an overall structure of a low frequency oscillator unit according to an embodiment of the present invention;
fig. 2 is an exploded view of a low frequency vibrator unit according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an overall inverted structure of a low-frequency oscillator unit according to an embodiment of the present invention;
fig. 4 is a perspective view showing the overall structure of a low frequency vibrator unit according to an embodiment of the present invention;
fig. 5 is a schematic diagram showing the arrangement of elements of the hybrid array antenna of embodiment 1 of the present invention;
fig. 6 is a schematic diagram of the arrangement of elements of the hybrid array antenna according to embodiment 2 of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Example 1
Referring to fig. 1 to 4, the present embodiment provides a miniaturized low frequency oscillator unit including an oscillator piece 11, and a base plate 13 and a radiation piece 12 connected to both ends of the oscillator piece 11, respectively. The radiation sheet 12 is composed of four dipole arms 121 and two open sections 123, and the four dipole arms 121 are symmetrically distributed in an orthogonal manner in pairs to form two pairs of dipoles with polarization directions orthogonal to each other.
The oscillator arm 121 is formed by two first radiation arms 1211 and two second radiation arms 1212 which enclose a box; the first radiation arm 1211 is coupled with the first radiation arm 1211 of the adjacent dipole, so that the aperture of the low-frequency oscillator unit can be effectively reduced, and the first radiation arm 1211 is composed of a thick copper foil 1213 and a bent thin copper foil 1214 which are connected at intervals. The bent fine copper foil 1214 can increase the coupling amount between the two adjacent first radiation arms 1211, and further reduce the aperture of the low-frequency radiation unit. The coarse copper foil 1213 can effectively reduce the impedance of the low-frequency oscillator unit, and is beneficial to oscillator matching. The bent fine copper foil 1214 and the bent coarse copper foil 1213 are respectively equivalent to the inductance and the capacitance in high frequency, and the line width and the line length of the fine copper foil 1214 and the coarse copper foil 1213 are adjusted to enable the resonance frequency of the formed LC resonance circuit to be in a high frequency range, so that the influence of a low-frequency oscillator on a high-frequency oscillator directional diagram is reduced. The second radiating arm 1212 is composed of a serial stub 1215, a parallel stub 1216, and a connection line 1217, which are all thin copper foils; the shielding of high frequency can be effectively reduced due to the thin copper foil, and the influence on a high frequency directional diagram is reduced. One end of a connection line 1217 is connected to the series stub 1215 and the parallel stub 1216, and the other end is connected to the connection line 1217 of the first radiation arm 1211 or the other second radiation arm 1212. Parallel stub 1216 is distributed in a box surrounded by first radiation arm 1211 and second radiation arm 1212, which is equivalent to a capacitor; the series stub 1215 is equivalent to an inductor, thus forming a two-step low pass filter that prevents high frequency currents from flowing on the second radiating arm 1212, reducing the effect on the high frequency pattern due to the presence of low frequency vibrators. The line length of the parallel stub 1216 is between one sixteenth to one quarter wavelength of the high-frequency center frequency, and the line length of the series stub 1215 is 0.2-1 times the one quarter wavelength of the high-frequency center frequency.
The two first radiating arms and the two second radiating arms of the same oscillator arm 121 are each symmetric with respect to their own polarization direction. Two non-adjacent dipole arms 121 form a dipole as a polarization; two oscillator arms of the same polarization are on two different faces (i.e., the first radiation face and the second radiation face) of the dielectric support plate 122. The open circuit section 123 is arranged on the dielectric support plate 122 corresponding to the oscillator arm 121 positioned below the dielectric support plate 122, the open circuit section 123 is connected with the oscillator piece 11 for feeding, and then energy is transmitted to the oscillator arm 121 corresponding to the lower layer through coupling, so that two corresponding oscillator arms 121 form a dipole radiation, two non-adjacent oscillator arms form a pair to form a dipole, and four oscillator arms 121 form two orthogonal dipole radiations.
The dipole piece 11 is made of a printed circuit board (a second circuit is printed on the printed circuit board), the second circuit includes a ground layer 111 and a signal layer 112, the ground layer 111 and the signal layer 112 are distributed on two different surfaces (i.e. a first surface and a second surface) of the printed dielectric board, the signal layer 112 forms a loop with the ground layer 111 opposite to the signal layer 112, and feeds electricity to one pair of dipole arms 121; such a printed dielectric board may have two pairs of signal layers 112 and ground layers 111, which are capable of feeding two pairs of dipole arms simultaneously, the two pairs of signal layers 112 and ground layers 111 being parallel to each other, respectively. The hole site of the ground layer through the radiation piece medium supporting plate 122 is connected with the oscillator arm 121 on the upper layer of the medium supporting plate, and the hole site of the signal 111 layer corresponding to the hole site through the radiation piece medium supporting plate 122 is connected with the open circuit section 123 on the upper layer of the medium supporting plate.
The base plate 13 is made of a single-sided printed circuit board, the lower layer of the printed circuit board is covered by copper foil 131, and the lower layer of the copper foil is covered by a layer of green oil, so that the base plate and the reflector plate are electrically coupled. The green oil serves to isolate the reflector plate from the base plate and prevent direct contact therebetween, to improve intermodulation of the overall system. The ground layer 111 of the vibrator piece is connected to the ground layer 131 of the base plate 13 through the hole of the base plate 13 downward.
In summary, compared with the prior art, the low-frequency oscillator unit of the present embodiment has the following specific beneficial effects:
(1) and the oscillator arms are mutually coupled through the first radiation arm, so that the oscillator is miniaturized.
(2) And a bending line is introduced into the first radiation arm, so that the electrical length of the oscillator arm is equivalently increased, and the oscillator is more favorably miniaturized.
(3) The arrangement of the thick copper foil on the first radiating arm and the arrangement of the serial stub and the parallel stub on the second radiating arm form a resonant circuit, and high-frequency current is prevented from flowing on the oscillator arm, so that the influence of the existence of a low-frequency oscillator on a high-frequency directional diagram is reduced, and the improvement of the isolation between high and low frequencies is facilitated.
(4) The conventional oscillator adopts two orthogonal oscillator pieces to feed, the two pairs of signal layers and the ground layer are adopted in the embodiment to feed in parallel, and one oscillator piece can feed two orthogonal polarizations.
Referring to fig. 5, the present embodiment further provides a hybrid array antenna, which includes a reflection plate 2, and a low frequency base station antenna array and a high frequency two-beam antenna array both mounted on the reflection plate 2. The low-frequency base station antenna array and the high-frequency two-beam antenna array respectively form a conventional base station single-beam antenna and a conventional two-beam antenna, so that the antenna sharing reflecting plate and the antenna housing of different systems working at different frequency bands are realized, the multi-system common-body design is realized, the antenna miniaturization is facilitated, and the installation space is saved.
The low-frequency base station antenna array and the high-frequency two-beam antenna array are mutually nested, the low-frequency base station antenna array is formed by two rows of the low-frequency oscillator units 1 in parallel, each row of the low-frequency oscillator units 1 are linearly arranged at equal intervals, and in the embodiment, each row is provided with 5 low-frequency oscillator units; the last (i.e. last row) two low frequency oscillator units 14 form two low frequency systems with the two front columns of low frequency oscillator units 1 through the additional couplers. The high-frequency two-beam antenna array consists of 5 high-frequency radiation unit sub-arrays 31, and the adjacent high-frequency radiation unit sub-arrays 31 are arranged in a staggered manner in the horizontal direction; each high-frequency radiating element sub-array 31 is composed of eight high-frequency oscillator units 3 linearly arranged in two rows at equal intervals, and each high-frequency oscillator unit 3 is arranged at equal intervals in the vertical direction. The distance of the horizontal displacement of the adjacent high-frequency radiating element sub-arrays 31 is half of the horizontal pitch of the high-frequency oscillator elements 3. The low-frequency oscillator units 1 are distributed between two rows of high-frequency oscillator units 3 of the high-frequency radiating unit sub-array 31, and the vertical distance of the low-frequency oscillator units 1 is twice that of the high-frequency oscillator units 3. The specific arrangement is shown in figure 5.
The hybrid array antenna in this embodiment can simultaneously support two frequency bands (690-. In addition, the hybrid array antenna of the embodiment has a one-to-one correspondence relationship with the low-frequency oscillator unit, and has corresponding functions and beneficial effects of the low-frequency oscillator unit.
Example 2
Fig. 6 shows another hybrid array antenna, which includes a reflector plate 2, and a low frequency base station antenna array, a high frequency base station antenna array 32 and a high frequency smart antenna array 33, all mounted on the reflector plate 2. The high-frequency base station antenna arrays 32 are arranged on two sides of the reflector 2, the high-frequency smart antenna arrays 33 are arranged in the middle of the reflector 2, and the low-frequency base station antenna arrays are nested with the high-frequency base station antenna arrays 32 and the high-frequency smart antenna arrays 33. The hybrid antenna array comprises a TDD and FDD hybrid antenna array, so that the antenna sharing reflecting plate and the antenna housing of different systems working at different frequency bands are realized, the multi-system common design is realized, the miniaturization of the antenna is facilitated, and the installation space is saved.
The low-frequency base station antenna array is formed by linearly arranging two rows of low-frequency oscillator units 1 in embodiment 1, wherein each row of low-frequency oscillator units 1 is linearly arranged at equal intervals, and each row of low-frequency oscillator units is provided with 5 low-frequency oscillator units in the embodiment; the last (i.e. last row) two low frequency oscillator units 15 form two low frequency systems with the two front columns of low frequency oscillator units 1 through the additional couplers. The high-frequency base station antenna array 32 is formed by linearly arranging two rows of 10 high-frequency oscillator units 3 with equal intervals. The high-frequency smart antenna array 33 is composed of 4 rows of high-frequency oscillator units 3, each row is formed by linearly arranging 10 high-frequency oscillator units 3 at equal intervals, adjacent rows are arranged in a staggered mode in the vertical direction, and the staggered distance is half of the vertical interval of the high-frequency oscillator units 3.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, and the description is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that instead of being realized with a printed circuit board in this example, it may also be realized with plastic plating, die casting or sheet metal; it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (9)
1. A low frequency oscillator unit, comprising:
a base plate having a first circuit printed thereon;
the oscillator piece is printed with a second circuit, one end of the oscillator piece is fixed on the base plate, and the second circuit is electrically connected with the first circuit;
the radiating patch is fixed at the other end of the oscillator patch and comprises a medium supporting plate, a first radiating surface and a second radiating surface, the first radiating surface and the second radiating surface are arranged on two parallel surfaces of the medium supporting plate, two oscillator arms which are symmetrical to each other are arranged on the first radiating surface and the second radiating surface, each oscillator arm comprises two sections of first radiating arms and two sections of second radiating arms, the first radiating arms are formed by connecting thick copper foils and thin copper foils at intervals, the second radiating arms are formed by thin copper foils, and the second circuit is electrically connected with the oscillator arms; the oscillator arm of the first radiating surface and the oscillator arm of the second radiating surface form two orthogonal dipoles;
the two sections of first radiation arms and the two sections of second radiation arms enclose a square frame, the two sections of first radiation arms are connected, and the two sections of second radiation arms are connected.
2. The unit of claim 1, wherein the thin copper foil on the first radiating arm is curved.
3. The unit of claim 1, wherein the second radiating arm comprises a series stub, a parallel stub and a connection line, and the connection line is disposed at two ends of the second radiating arm for connecting with the first radiating arm or other second radiating arms.
4. The low frequency oscillator unit according to claim 3, wherein the line length of the parallel stub is between one sixteenth and one quarter wavelength of the high frequency center frequency.
5. The unit of claim 1, wherein the radiating patch is further provided with an open section, the open section is connected to the second circuit on the dipole patch, and two dipole arms in the same dipole are connected to form an electric coupling through the open section and the second circuit.
6. The unit of claim 1, wherein the second circuit comprises two ground layers and two signal layers, the two ground layers are printed on the first surface of the dipole sheet, the two signal layers are printed on the second surface of the dipole sheet, and the ground layers and the signal layers form a loop for feeding the two dipole arms in the same dipole.
7. A hybrid array antenna, comprising:
a reflective plate;
the high-frequency two-beam antenna array is arranged on the reflecting plate;
a low frequency base station antenna array installed on the reflection plate, the low frequency base station antenna array being composed of the low frequency oscillator unit as claimed in claims 1 to 6.
8. The hybrid array antenna according to claim 7, wherein the high-frequency two-beam antenna array comprises more than two high-frequency radiating element sub-arrays, two adjacent high-frequency radiating element sub-arrays are horizontally staggered and vertically arranged at equal intervals, the high-frequency radiating element sub-arrays comprise 8 high-frequency element units, the 8 high-frequency element units are arranged in two rows, the low-frequency base station antenna array comprises two columns of the low-frequency element units arranged side by side, and each column of the low-frequency element units are linearly arranged at equal intervals on the reflector plate;
each row of low-frequency oscillator units are arranged between two rows of high-frequency oscillator units in the high-frequency radiation unit sub-array, and the distance between two adjacent rows of high-frequency oscillator units is 0.2 to 0.6 times of the distance between two adjacent rows of low-frequency oscillator units.
9. A hybrid array antenna, comprising:
a reflective plate;
the high-frequency base station antenna arrays are arranged on two sides of the reflecting plate;
the high-frequency intelligent antenna array is arranged in the center of the reflecting plate;
the low-frequency base station antenna array is arranged between the high-frequency base station antenna array and the high-frequency intelligent antenna array, and the low-frequency base station antenna array is formed by the low-frequency oscillator units according to the claims 1-6;
the high-frequency base station antenna array consists of two rows of high-frequency oscillator units which are linearly arranged at equal intervals;
the high-frequency intelligent antenna array consists of four rows of high-frequency oscillator units which are linearly arranged at equal intervals, adjacent rows are arranged in a staggered mode in the vertical direction, and the staggered distance is half of the vertical interval of the high-frequency oscillator units;
the low-frequency base station antenna array is composed of two lines of low-frequency oscillator units which are linearly arranged at equal intervals.
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| CN114171889B (en) * | 2021-12-09 | 2022-07-05 | 广东博纬通信科技有限公司 | Double-layer director and multi-frequency base station antenna array |
| CN117276857A (en) * | 2022-06-13 | 2023-12-22 | Oppo广东移动通信有限公司 | Antenna module, antenna device and electronic equipment |
| CN115832683A (en) * | 2022-11-02 | 2023-03-21 | 京信通信技术(广州)有限公司 | Radiation unit and base station antenna |
| WO2024104557A1 (en) | 2022-11-14 | 2024-05-23 | Telefonaktiebolaget Lm Ericsson (Publ) | A feeding structure for a dual polarized radiator |
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| CN202025852U (en) * | 2011-03-25 | 2011-11-02 | 重庆合基电讯科技有限公司 | Bipolar dipole radiator |
| CN105281031A (en) * | 2015-11-16 | 2016-01-27 | 广东博纬通信科技有限公司 | Ultra broadband dual polarization low frequency oscillator unit and multi-frequency-range array antenna |
| CN205081235U (en) * | 2015-11-16 | 2016-03-09 | 广东博纬通信科技有限公司 | Super wide band double polarization low frequency vibrator unit and multifrequency section array antenna thereof |
| WO2016064478A1 (en) * | 2014-10-21 | 2016-04-28 | Board Of Regents, The University Of Texas System | Dual-polarized, broadband metasurface cloaks for antenna applications |
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| FR2946806B1 (en) * | 2009-06-11 | 2012-03-30 | Alcatel Lucent | RADIANT ELEMENT OF MULTIBAND ANTENNA |
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| CN202025852U (en) * | 2011-03-25 | 2011-11-02 | 重庆合基电讯科技有限公司 | Bipolar dipole radiator |
| WO2016064478A1 (en) * | 2014-10-21 | 2016-04-28 | Board Of Regents, The University Of Texas System | Dual-polarized, broadband metasurface cloaks for antenna applications |
| CN105281031A (en) * | 2015-11-16 | 2016-01-27 | 广东博纬通信科技有限公司 | Ultra broadband dual polarization low frequency oscillator unit and multi-frequency-range array antenna |
| CN205081235U (en) * | 2015-11-16 | 2016-03-09 | 广东博纬通信科技有限公司 | Super wide band double polarization low frequency vibrator unit and multifrequency section array antenna thereof |
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