CN209822850U - Plane bending cross-shaped broadband dual-polarization butterfly-shaped oscillator - Google Patents
Plane bending cross-shaped broadband dual-polarization butterfly-shaped oscillator Download PDFInfo
- Publication number
- CN209822850U CN209822850U CN201920676903.XU CN201920676903U CN209822850U CN 209822850 U CN209822850 U CN 209822850U CN 201920676903 U CN201920676903 U CN 201920676903U CN 209822850 U CN209822850 U CN 209822850U
- Authority
- CN
- China
- Prior art keywords
- butterfly
- hollow cylindrical
- oscillator
- bottom plate
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a crisscross cross type broadband double polarization butterfly shape oscillator of buckling in plane, it includes: the feed structure comprises a bottom plate and a butterfly-shaped oscillator feed structure formed by a pair of butterfly-shaped dipoles which are arranged on the upper end surface of the bottom plate in a crossed manner. The utility model discloses in order to increase the half-power beam width of radiation pattern, reduce antenna size, improved dual polarization butterfly oscillator structure, bent the oscillator arm to the floor direction and become certain angle; when the bending angle is 40 degrees, the VSWR (voltage standing wave ratio) is below 1.5, and good in-band characteristics can be obtained from 4GHz to 8 GHz; the novel plane-bent crossed broadband dual-polarized butterfly-shaped oscillator has a very low section (1/6 which is smaller than low-frequency wavelength) and low cross polarization and a symmetrical radiation pattern, so that the antenna unit can be a good unit selection of a wireless communication phased-array antenna and a radio astronomical phased-array feed source, and has a wide application prospect in millimeter wave communication.
Description
Technical Field
The utility model belongs to the technical field of the dual polarization butterfly shape oscillator of broadband and specifically relates to a cross broadband dual polarization butterfly shape oscillator of buckling in plane.
Background
The pattern of the phased array feed source depends on the type, pointing direction, position in space of the single array element used and the amplitude and phase of the exciting current, so that the selection and design of the antenna element in the array design play a crucial role, and the characteristics of the antenna element greatly limit the achievable performance of the whole array.
Conventional antenna elements based on printed radiating structures can only achieve medium bandwidths (25%). In order to meet the requirement of a broadband system, various broadband antenna units are proposed in turn, wherein a slot aperture (Vivaldi) antenna array is more commonly used, and although the Vivaldi antenna has excellent broadband performance, the directional pattern cross polarization is higher and the symmetry is poorer. Furthermore, due to the need for continuous electrical connections between adjacent Vivaldi antenna elements, dual polarized Vivaldi antenna arrays are not amenable to modular construction and are difficult to assemble, which undoubtedly increases the maintenance costs of the array. The problem of modularization of a traditional Vivaldi antenna is solved by a rotator symmetric (BOR) Vivaldi antenna, but the antenna needs to depend on a special processing technology and is difficult to apply to high frequency. Strongly coupled dipole arrays (TCDAs) have the characteristics of low profile, wide frequency band, and low cross polarization, but the introduction of lossy dielectric materials in TCDAs generates a large amount of noise, which is very disadvantageous in high sensitivity system applications such as radio telescopes and deep space station antenna systems.
The unit can be designed by adopting the unit optimization design of radiation boundary conditions, and can also adopt the design method of an infinite array of periodic boundary antennas. However, both methods have limitations, and the cell design based on the radiation boundary condition does not consider the coupling effect between cells; the periodic boundary condition accounts for coupling between cells but ignores the edge effects of the finite array.
To design for large scale arrays (array sizes exceeding 10 × 10), array properties can be predicted using Floquet ports for analysis of infinite arrays in conjunction with periodic master-slave boundary conditions. The radiation field of the periodic structure can be represented by a set of orthogonal functions. By decomposing the (m, n) terms of the source signal sequence into TEzmn and TMzmn modal sources, the electromagnetic field components of the corresponding terms for each mode can be determined.
The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a crisscross broadband dual polarization butterfly shape oscillator of buckling in plane to solve the technical problem who exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a plane bending cross type broadband dual-polarized butterfly-shaped oscillator comprises: the feed structure comprises a bottom plate and a butterfly-shaped oscillator feed structure formed by a pair of butterfly-shaped dipoles which are arranged on the upper end surface of the bottom plate in a crossed manner;
the butterfly-shaped oscillator feed structure comprises 4 metal oscillator arms, 2 hollow cylindrical coaxial outer conductors, 2 grounding cylinders, 2 coaxial inner probes and 2 feed connecting sheets; the upper end and the lower end of the hollow cylindrical coaxial outer conductor and the upper end and the lower end of the grounding cylinder are both fixedly provided with a triangular base; the hollow cylindrical coaxial outer conductor and the grounding cylinder are fixedly arranged on the bottom plate through the triangular base at the lower end of the hollow cylindrical coaxial outer conductor and the grounding cylinder respectively; the 2 hollow cylindrical coaxial outer conductors and the 2 grounding cylinders form a square structure with two rows and two columns on the bottom plate, and the 2 hollow cylindrical coaxial outer conductors are adjacently arranged; the hollow cylindrical coaxial outer conductor and the grounding cylinder are respectively and fixedly connected with 1 metal vibrator arm through the triangular base at the upper end of the hollow cylindrical coaxial outer conductor and the grounding cylinder;
one end of each of the 2 coaxial inner probes is connected with the SMA inner core and then penetrates into the 2 hollow cylindrical coaxial outer conductors from the through holes on the bottom plate respectively, and the coaxial inner probes and the hollow cylindrical coaxial outer conductors are placed in an insulated mode; the other end of the coaxial inner probe is connected with one end of the feed connecting sheet, and the other end of the feed connecting sheet is fixedly and electrically connected with the metal vibrator arm connected with the grounding cylinder; a feed connecting sheet is connected with a coaxial inner probe in a hollow cylindrical coaxial outer conductor which is arranged in a diagonal line and a metal vibrator arm on a grounding cylinder;
the front ends of the 4 metal vibrator arms are uniformly bent to the direction of the bottom plate by a certain angle.
As a further technical scheme, an insulating sleeve is arranged at the top of the hollow cylindrical coaxial outer conductor, the outer diameter of the upper part of the insulating sleeve is larger than that of the lower part of the insulating sleeve, and the outer diameter of the lower part of the insulating sleeve is matched with the inner diameter of the hollow cylindrical coaxial outer conductor.
As a further technical scheme, the bottom plate is a square bottom plate.
As a further technical scheme, an external thread is arranged at one end, connected with the feed connecting sheet, of the coaxial inner probe, correspondingly, a groove with an internal thread is arranged at the corresponding position of the feed connecting sheet, and the coaxial inner probe and the feed connecting sheet are in threaded connection through the external thread and the groove with the internal thread.
As a further technical solution, the middle part of the metal vibrator arm is bent 40 ° towards the bottom plate.
As a further technical scheme, the planar bending crisscross broadband dual-polarized butterfly-shaped oscillator is made of pure metal.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses in order to increase the half-power beam width of radiation pattern, reduce antenna size, improved dual polarization butterfly oscillator structure, bent the oscillator arm to the floor direction and become certain angle; when the bending angle is 40 degrees, the VSWR (voltage standing wave ratio) is below 1.5, and good in-band characteristics can be obtained from 4GHz to 8 GHz; and the radiation patterns of the planes are almost the same in the whole operating band, and the cross polarization is less than-30 dB. The novel plane-bent crossed broadband dual-polarized butterfly-shaped oscillator has a very low section (1/6 which is smaller than low-frequency wavelength) and low cross polarization and a symmetrical radiation pattern, so that the antenna unit can be a good unit selection of a wireless communication phased-array antenna and a radio astronomical phased-array feed source, and has a wide application prospect in millimeter wave communication.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a three-dimensional structure of a planar bending crisscross broadband dual-polarized butterfly-shaped oscillator provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a connection state of the coaxial inner probe and the feed connection sheet according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an insulation sleeve according to an embodiment of the present invention;
fig. 4 is a schematic view of a connection structure between a metal vibrator arm and a grounding cylinder according to an embodiment of the present invention;
fig. 5 shows VSWR of the metallic vibrator arm according to the embodiment of the present invention when the front end is bent toward the bottom plate by 0, 20, 40, and 60 degrees, respectively;
fig. 6 is a reflection coefficient of an E-plane and an H-plane of the plane-bent cross-shaped broadband dual-polarized butterfly oscillator provided by the embodiment of the present invention at different scanning angles;
fig. 7 is an E-D and H plane radiation pattern of the planar bending crisscross broadband dual-polarized butterfly oscillator provided by the embodiment of the present invention under low frequency, center frequency and high frequency;
icon: 1-a butterfly oscillator feed structure; 2-a bottom plate; 3-a metal vibrator arm; 4-hollow cylindrical coaxial outer conductor; 5-a grounded cylinder; 6-coaxial inner probe; 7-a feed connection piece; 8-triangular base; 9-insulating sleeve.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
As shown in fig. 1 to 4, this embodiment provides a planar bending crisscross broadband dual-polarized butterfly oscillator, including: the feed structure comprises a bottom plate 2 and a butterfly-shaped vibrator feed structure 1 formed by a pair of butterfly-shaped dipoles which are arranged on the upper end face of the bottom plate 2 in a crossed manner;
the butterfly-shaped oscillator feed structure 1 comprises 4 metal oscillator arms 3, 2 hollow cylindrical coaxial outer conductors 4, 2 grounding cylinders 5, 2 coaxial inner probes 6 and 2 feed connecting pieces 7; the upper end and the lower end of the hollow cylindrical coaxial outer conductor 4 and the upper end and the lower end of the grounding cylinder 5 are both fixedly provided with a triangular base 8; the hollow cylindrical coaxial outer conductor 4 and the grounding cylinder 5 are respectively fixedly arranged on the bottom plate 2 through the triangular base 8 at the lower end of the hollow cylindrical coaxial outer conductor; the 2 hollow cylindrical coaxial outer conductors 4 and the 2 grounding cylinders 5 form a square structure with two rows and two columns on the bottom plate, and the 2 hollow cylindrical coaxial outer conductors 4 are adjacently arranged; the hollow cylindrical coaxial outer conductor 4 and the grounding cylinder 5 are respectively and fixedly connected with 1 metal vibrator arm 3 through the triangular base 8 at the upper end of the hollow cylindrical coaxial outer conductor;
one end of each of the 2 coaxial inner probes 6 is connected with the SMA inner core and then respectively penetrates into the 2 hollow cylindrical coaxial outer conductors 4 from the through holes on the bottom plate, and the coaxial inner probes 6 and the hollow cylindrical coaxial outer conductors 4 are placed in an insulated manner; the other end of the coaxial inner probe 6 is connected with one end of the feed connecting sheet 7, and the other end of the feed connecting sheet 7 is fixedly and electrically connected with the metal vibrator arm 3 connected with the grounding cylinder 5; a feed connecting sheet 7 is connected with a coaxial inner probe in a hollow cylindrical coaxial outer conductor which is arranged in a diagonal line and a metal vibrator arm on a grounding cylinder;
the front ends of the 4 metal vibrator arms 3 are uniformly bent to a certain angle towards the direction of the bottom plate 2.
The utility model discloses a crisscross cross broadband dual polarization butterfly shape oscillator of buckling in plane has adopted the coaxial feed structure of air packing, and the outer wall ground connection of coaxial line, the one end of interior probe are passed through feed adapting unit and are connected with relative metal oscillator arm, and the other end then is connected to the SMA below the circular floor and connects, consequently can directly link to each other with the low noise amplifier of single-ended coaxial feed. The two grounding cylinders are opposite to the two polarized coaxial feed structures, and the grounding cylinders and the coaxial feed structures jointly form a folded balun, so that the conversion from balanced feed to unbalanced feed is realized; meanwhile, the introduction of the grounding cylinder improves the symmetry of the structure and can inhibit radiation generated by the coaxial outer wall; in addition, the coaxial feed structure and the grounding cylinder can both play a role of supporting the butterfly-shaped metal arm.
In this embodiment, as a further technical solution, an insulating sleeve 9 is disposed on the top of the hollow cylindrical coaxial outer conductor 4, an outer diameter of an upper portion of the insulating sleeve 9 is larger than an outer diameter of a lower portion of the insulating sleeve, and the outer diameter of the lower portion of the insulating sleeve is matched with an inner diameter of the hollow cylindrical coaxial outer conductor.
In this embodiment, as a further technical solution, the bottom plate 2 is a square bottom plate. The square bottom plate is used as a reflector of the butterfly-shaped oscillator, so that the back lobe of a directional diagram can be restrained, and directional radiation is generated.
In this embodiment, as a further technical solution, one end of the coaxial inner probe 6 connected with the feed connection piece 7 is provided with an external thread, correspondingly, a corresponding position of the feed connection piece is provided with a groove with an internal thread, and the coaxial inner probe and the feed connection piece are in threaded connection through the external thread and the groove with the internal thread.
In this embodiment, as a further technical solution, the middle part of the metal vibrator arm is bent by 40 ° toward the bottom plate. When the bending angle is 40 degrees, the VSWR (voltage standing wave ratio) of the broadband dual-polarized butterfly-shaped oscillator is below 1.5, and good in-band characteristics can be obtained from 4GHz to 8 GHz.
In this embodiment, as a further technical solution, the planar bending cross-shaped broadband dual-polarized butterfly oscillator is made of pure metal. The whole antenna structure is made of pure metal, so that the ohmic loss of the antenna can be reduced, and the complexity of low-temperature system integration is reduced.
Referring to fig. 5, the 4 curves correspond to 0, 20, 40 and 60 degree bending angles, respectively, and correspond to red, light coffee, blue and dark coffee, respectively. When the bend angle is 40 ° (corresponding to the blue curve), the VSWR (voltage standing wave ratio) is 1.5 or less, and good in-band characteristics can be obtained from 4GHz to 8 GHz.
As shown in fig. 6, the reflection coefficients of the E-plane and the H-plane at different scan angles are shown. As shown in fig. 6(a), the red, brown, blue and green curves correspond to scan angles of 0, 10, 20, 30 degrees, respectively. The VSWR of the operating band (4-8GHz) is about 1.6 at a scan angle of 0 deg., and is less than 2 from 3.6GHz to 8.7 GHz. When the scan angle is equal to 10 degrees, the VSWR is less than 2 in the range above 9 GHz. When the scan angle is increased to 20 degrees, the bandwidth (VSWR <2) is limited to a high frequency band of 8.4 GHz. When scanned to 30 degrees, the standing wave ratio is greater than 4 at 8 GHz. FIG. 6(b) shows the results of H-plane scanning at different scanning angles, similar to the results of E-plane scanning due to the symmetry of the structure; the red, brown, blue, light green and green curves in the figure correspond to scan angles of 0, 10, 20, 25, 30 degrees, respectively.
Referring to fig. 7, the E-D and H-plane radiation patterns of the novel planar bent crossed broadband dual-polarized butterfly-shaped oscillator at low frequency, center frequency and high frequency are shown in the diagrams (a) - (c), respectively. The radiation patterns of the planes are almost the same throughout the operating band with cross polarization less than-30 dB.
To sum up, the utility model discloses a novel dual polarization butterfly shape oscillator of crossing type broadband that plane was buckled has very low section (1/6 that is less than the low frequency wavelength) and the cross polarization of low and the radiation pattern of symmetry, therefore this antenna element will be wireless communication phased array antenna and with the better unit selection of radio astronomical phased array feed to there is great application prospect at millimeter wave communication.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a plane is buckled crisscross type broadband dual polarization butterfly shape oscillator which characterized in that includes: the feed structure comprises a bottom plate and a butterfly-shaped oscillator feed structure formed by a pair of butterfly-shaped dipoles which are arranged on the upper end surface of the bottom plate in a crossed manner;
the butterfly-shaped oscillator feed structure comprises 4 metal oscillator arms, 2 hollow cylindrical coaxial outer conductors, 2 grounding cylinders, 2 coaxial inner probes and 2 feed connecting sheets; the upper end and the lower end of the hollow cylindrical coaxial outer conductor and the upper end and the lower end of the grounding cylinder are both fixedly provided with a triangular base; the hollow cylindrical coaxial outer conductor and the grounding cylinder are fixedly arranged on the bottom plate through the triangular base at the lower end of the hollow cylindrical coaxial outer conductor and the grounding cylinder respectively; the 2 hollow cylindrical coaxial outer conductors and the 2 grounding cylinders form a square structure with two rows and two columns on the bottom plate, and the 2 hollow cylindrical coaxial outer conductors are adjacently arranged; the hollow cylindrical coaxial outer conductor and the grounding cylinder are respectively and fixedly connected with 1 metal vibrator arm through the triangular base at the upper end of the hollow cylindrical coaxial outer conductor and the grounding cylinder;
one end of each of the 2 coaxial inner probes is connected with the SMA inner core and then penetrates into the 2 hollow cylindrical coaxial outer conductors from the through holes on the bottom plate respectively, and the coaxial inner probes and the hollow cylindrical coaxial outer conductors are placed in an insulated mode; the other end of the coaxial inner probe is connected with one end of the feed connecting sheet, and the other end of the feed connecting sheet is fixedly and electrically connected with the metal vibrator arm connected with the grounding cylinder; a feed connecting sheet is connected with a coaxial inner probe in a hollow cylindrical coaxial outer conductor which is arranged in a diagonal line and a metal vibrator arm on a grounding cylinder;
the front ends of the 4 metal vibrator arms are uniformly bent to the direction of the bottom plate by a certain angle.
2. The planar bent crisscross broadband dual-polarized butterfly-shaped oscillator according to claim 1, wherein an insulating sleeve is disposed on a top of the hollow cylindrical coaxial outer conductor, an outer diameter of an upper portion of the insulating sleeve is larger than an outer diameter of a lower portion of the insulating sleeve, and an outer diameter of the lower portion of the insulating sleeve is matched with an inner diameter of the hollow cylindrical coaxial outer conductor.
3. The planar bent crisscross broadband dual-polarized butterfly-shaped oscillator according to claim 1, wherein the bottom plate is a square bottom plate.
4. The plane bending crisscross broadband dual-polarized butterfly oscillator according to claim 1, wherein an external thread is provided at one end of the coaxial inner probe connected to the feed connection pad, a groove with an internal thread is correspondingly provided at a corresponding position of the feed connection pad, and the coaxial inner probe is in threaded connection with the feed connection pad through the external thread and the groove with the internal thread.
5. The plane bending crisscross broadband dual-polarized butterfly oscillator according to claim 1, wherein the middle of the metal oscillator arm is bent 40 ° toward the bottom plate.
6. The plane bending crisscross broadband dual-polarized butterfly-shaped oscillator according to claim 1, wherein the plane bending crisscross broadband dual-polarized butterfly-shaped oscillator is made of pure metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920676903.XU CN209822850U (en) | 2019-05-13 | 2019-05-13 | Plane bending cross-shaped broadband dual-polarization butterfly-shaped oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920676903.XU CN209822850U (en) | 2019-05-13 | 2019-05-13 | Plane bending cross-shaped broadband dual-polarization butterfly-shaped oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209822850U true CN209822850U (en) | 2019-12-20 |
Family
ID=68883303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920676903.XU Active CN209822850U (en) | 2019-05-13 | 2019-05-13 | Plane bending cross-shaped broadband dual-polarization butterfly-shaped oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209822850U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034372A (en) * | 2019-05-13 | 2019-07-19 | 中国科学院国家天文台 | A kind of wideband dual polarized butterfly oscillator of plane bending cross type |
-
2019
- 2019-05-13 CN CN201920676903.XU patent/CN209822850U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034372A (en) * | 2019-05-13 | 2019-07-19 | 中国科学院国家天文台 | A kind of wideband dual polarized butterfly oscillator of plane bending cross type |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106848554B (en) | A kind of ultra wide bandwidth angle antenna array based on interdigitated coupled dipole unit | |
| CN107230840B (en) | High gain broadband microstrip patch antenna | |
| CN105720361A (en) | Artificial magnetic conductor structure-based broadband low-profile dual-polarized omnidirectional antenna | |
| CN109687116B (en) | C-band miniaturized broadband wide-beam circularly polarized microstrip antenna | |
| CN104900998A (en) | Low-profile dual-polarized base station antenna | |
| CN111009728A (en) | Luneberg lens, low-profile array antenna based on Luneberg lens array and satellite antenna | |
| CN113644432B (en) | Dual circularly polarized phased array antenna array | |
| CN114883785B (en) | Thin dual-polarization ultra-wide bandwidth angle scanning array antenna | |
| CN114976665B (en) | Broadband dual-polarized dipole antenna loaded with stable frequency selective surface radiation | |
| CN112234365A (en) | Chessboard type low-scattering low-profile strong-cross-coupling broadband planar phased array | |
| CN114069257A (en) | Ultra-wideband dual-polarized phased array antenna based on strong coupling dipoles | |
| CN110034372A (en) | A kind of wideband dual polarized butterfly oscillator of plane bending cross type | |
| CN110233336B (en) | Series-fed circularly polarized antenna normal array | |
| CN209822857U (en) | Novel tightly-fed broadband dual-polarization butterfly-shaped oscillator | |
| CN209822850U (en) | Plane bending cross-shaped broadband dual-polarization butterfly-shaped oscillator | |
| CN113871865A (en) | Low-profile broadband wide-angle two-dimensional scanning dual-polarization phased array antenna and application | |
| CN113594701A (en) | Wide-frequency-band wide-beam dual-polarized antenna based on metal cavity and parasitic dipole | |
| Kasemodel et al. | Low-cost, planar and wideband phased array with integrated balun and matching network for wide-angle scanning | |
| CN112310630A (en) | Wide-band high-gain printed antenna | |
| CN114725685B (en) | Planar tight coupling ultra-wideband phased array based on transverse connection folded dipole | |
| CN110911828A (en) | Broadband differential feed dual-polarized antenna adopting integrated six-port power divider | |
| Zhao et al. | Microstrip phased array antenna with small element space for 5G millimeter-wave applications | |
| CN112259959B (en) | Low profile wide bandwidth swept phased array antenna unit | |
| CN110504535B (en) | Yagi end-fire array antenna with dual-polarized cylindrical conformal microstrip magnetic oscillator | |
| CN109659673B (en) | Wide-beam high-gain dual-polarized directional antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |