CN109586018A - A kind of vivaldi antenna and dual polarization probe - Google Patents
A kind of vivaldi antenna and dual polarization probe Download PDFInfo
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- CN109586018A CN109586018A CN201811308723.2A CN201811308723A CN109586018A CN 109586018 A CN109586018 A CN 109586018A CN 201811308723 A CN201811308723 A CN 201811308723A CN 109586018 A CN109586018 A CN 109586018A
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- vivaldi
- metal layer
- card slot
- antenna
- radiation fin
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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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The present invention provides a kind of vivaldi antenna and dual polarization probe, the high frequency cross polarization level for solving existing probe antenna is poor, port couples the low problem of isolation, its key points of the technical solution are that, vivaldi antenna includes three-layer metal layer and the dielectric-slab that is located between metal layer, it is located in the middle metal layer setting feed structure, remaining two metal layers is provided with the vivaldi aerial radiation structure being electrically connected with feed structure, vivaldi aerial radiation structure along antenna middle line be symmetrical arranged there are two, to realize double fluting vivaldi structures, it is effectively improved low side standing wave, make antenna that there is good high frequency cross polarization level, isolation with higher.Card slot is opened up by the midline position in antenna simultaneously, the orthogonal connection of two vivaldi antennas can be realized using card slot, to form dual polarization probe, and vivaldi structure, which is located at card slot two sides, respectively has one, avoid damage to the arc-shaped back chamber of vivaldi structure, chamber is carried on the back in round gap without destroying vivaldi structure, and the phase center of two antennas of probe can be made consistent.
Description
Technical field
The present invention relates to field of antenna more particularly to a kind of vivaldi antennas and dual polarization to pop one's head in.
Background technique
Near-field measurement method is the important means of antenna measurement, it can join in the far-field performance that short distance obtains antenna
Number is the important method of antenna radiation characteristics test.In the design process of near field test system, pop one's head near field test system
Electric property has a significant impact.In irradiation angular region, far field radiation pattern needs to have good the probe of near field test system
Good axial symmetry characteristic, the face E and the face H of directional diagram are as flat as possible and have lower cross polarization.At present, near-field measurement system
In dual polarization measurement mainly realized by two ways: first is that the mechanical rotation using single polarization probe is bipolar to realize
Change；Second is that directly being realized using dual polarization probe.
Dual polarization probe does not need mechanical adjustment during the test, has the advantages that convenient test, test speed are fast, but
It is required that probe has low-cross polarization, broadband character and small caliber size.To realize these characteristics, such probe designs
Difficulty is big, and design cost is high, and the high frequency cross polarization level of current probe antenna is poor, and it is low that port couples isolation.
Summary of the invention
The purpose of the present invention is intended to provide a kind of vivaldi antenna and dual polarization probe, has high polarization isolation, high-end
The effect of mouth coupling isolation.
To achieve the goals above, the present invention the following technical schemes are provided:
A kind of vivaldi antenna, it is characterized in that: including upper, middle and lower-ranking metal layer and being located in adjacent two metal interlevel
Dielectric-slab, vivaldi aerial radiation structure is formed on upper and lower layer metal layer, formed on intermediate metal layer feed structure and with
The vivaldi aerial radiation structure electrical connection；
Wherein, the vivaldi includes the radiation fin being symmetrical set, and the radiation fin includes intermediate radiation fin and company
It is connected to the side radiation fin of intermediate radiation fin two sides, offers radius between the intermediate radiation fin and the side radiation fin
Seam；
The vivaldi antenna along the middle line of the intermediate radiation fin offer for another vivaldi antenna
The card slot being vertically clamped.
Further setting: the feed structure of the intermediate metal layer includes T-type power splitter, and two of the T-type power splitter
Output port is connect with the radiation fin for being located at card slot two sides respectively, and 180 ° of the phase phase difference of two output ports.
Further setting: the input port that lower metal layer corresponds to the T-type power splitter of the intermediate metal layer is provided with
The feed circuit being electrically connected with the input port of T-type power splitter.
Further setting: the feed circuit of the lower metal layer and the input port of T-type power splitter use microstrip line/slot
Microstrip line grounding connection in line converter.
Further setting: the side radiation fin opens up multiple load slots.
Further setting: multiple load slots are equidistantly arranged along the length direction of metal layer.
Further setting: the radiation line of rabbet joint includes circular trough, along the first gradual change slot of the side of side radiation fin extension
And the second gradual change slot extended along the side of intermediate radiation fin, the first gradual change slot and the second gradual change slot connect with circular trough
It connects, the first gradual change slot is greater than the second gradual change slot.
Further setting: the periphery that the dielectric-slab and upper, middle and lower metal layer correspond to radiation fin offers several metal mistakes
Hole, the dielectric-slab and upper and lower metal layer form substrate waveguiding structure by metallic vias.
A kind of dual polarization probe, including two vivaldi antennas as described above, are mutually perpendicular to card by the card slot
It connects.
Further setting: the card slot includes being opened in first card slot of a vivaldi antenna and being opened in another
The opening direction of second card slot of vivaldi antenna, the opening direction of the first card slot and the second card slot is on the contrary, described in two
Vivaldi antenna is engaged by clamping with the second card slot by the first card slot and is connect with vertical.
Compared with prior art, the solution of the invention has the following advantages:
1. by the way that T-type power splitter is arranged in intermediate metal layer, and making the phase phase difference of two output ports of T-type power splitter
180 °, to realize the constant amplitude excitation of aerial signal, while differential feed structure is constituted, further improve vivaldi antenna
Electric property, and can reach jamproof purpose.
2. current convergence can be made to flow about in the first gradual change slot and the second gradual change slot by setting load slot, thus enabled
Amount preferably radiate the ultra wide band design to realize antenna, while can also reduce antenna in the return loss of low frequency, makes day
Line impedence matching effect is best.
3. the vertical connection of two vivaldi antennas, structure are realized with the clamping engagement of the second card slot by the first card slot
Complete vivaldi structure is all had at dual polarization probe, and in the two sides of card slot, can be generated in the face antenna E similar
The electric field of plane wave so that antenna working frequency range radiation medium plate field distribution it is more uniform, concentrate, antenna radiation pattern is more
For stabilization, electric field line along vivaldi aerial radiation structure perimeter and generate stronger radiation so that antenna element has
The working frequency range of ultra-wide, is improved antenna gain, especially in high band, low side standing wave can be effectively improved, so that day
Line has good high frequency cross polarization level, and isolation with higher, excellent antenna performance；
4. all having complete vivaldi structure in the two sides of card slot, the round gap without destroying vivaldi structure is carried on the back
Chamber, so that the phase center of two vivaldi antennas is also consistent.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 a is the schematic diagram of the upper metal layers of the first antenna unit of the embodiment of the present invention；
Fig. 2 b is the schematic diagram of the intermediate metal layer of the first antenna unit of the embodiment of the present invention；
Fig. 2 c is the schematic diagram of the lower metal layer of the first antenna unit of the embodiment of the present invention；
Fig. 3 a is the schematic diagram of the upper metal layers of the second antenna element of the embodiment of the present invention；
Fig. 3 b is the schematic diagram of the intermediate metal layer of the second antenna element of the embodiment of the present invention；
Fig. 3 c is the schematic diagram of the lower metal layer of the second antenna element of the embodiment of the present invention；
Isolation simulation result diagram of the Fig. 4 between antenna port of the invention；
Fig. 5 is the radiation gain curve graph of two principal planes of XOY, YOZ that dual polarization of the invention is popped one's head in.
In figure, 1, first antenna unit；11, the first card slot；2, the second antenna element；21, the second card slot；3,vivaldi
Aerial radiation structure；31, intermediate radiation fin；32, side radiation fin；33, the line of rabbet joint is radiated；331, circular trough；332, the first gradual change
Slot；333, the second gradual change slot；4, feed structure；41, T-type power splitter；42, microstrip line；5, feed circuit；6, metallic vias；7,
Load slot.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Fig. 1 to Fig. 3 c is please referred to, the present invention relates to a kind of Vivaldi antennas, including upper, middle and lower-ranking metal layer and folder
Dielectric-slab (not illustrating in figure) between adjacent two metal layer, i.e. dielectric-slab are provided with two pieces, meanwhile, upper and lower layer metal
Layer on form vivaldi aerial radiation structure 3, then formed on intermediate metal layer feed structure 4 and with described in upper and lower metal layer
Vivaldi aerial radiation structure 3 is electrically connected.
Wherein, the vivaldi aerial radiation structure 3 includes the radiation fin being symmetrical set, and the radiation fin includes
Intermediate radiation fin 31 and the side radiation fin 32 for being connected to intermediate 31 two sides of radiation fin, and intermediate radiation fin 31 is radiated with side
The radiation line of rabbet joint 33 is offered between piece 32.
The radiation line of rabbet joint 33 includes circular trough 331, along 332 and of the first gradual change slot of the side of side radiation fin 32 extension
Described in the second gradual change slot 333 extended along the side of intermediate radiation fin 31, the first gradual change slot 332 and the second gradual change slot 333
It is connect with the circular trough 331, forms flare openings, and the first gradual change slot 332 is greater than the second gradual change slot
333, the length of the first gradual change slot 332 is greater than the length of the second gradual change slot 333, to realize double fluting vivaldi knots
Structure, and reduce low side standing wave.
Also, the periphery that radiation fin is corresponded on the dielectric-slab and upper, middle and lower metal layer offers several metallic vias 6,
The i.e. described metallic vias 6 corresponds to the first gradual change slot 332, the second gradual change slot 333, circular trough 331 and radiation leaf length side
To side be arranged, the dielectric-slab and upper and lower metal layer are by the perforation of 6 array of metallic vias, to form substrate waveguiding structure.
In addition, the vivaldi antenna along the middle line of the intermediate radiation fin 31 offer for it is another described
The card slot of vivaldi antennas orthogonal clamping, for two vivaldi antennas orthogonal clampings to form dual polarization probe.
The feed structure 4 of the intermediate metal layer includes T-type power splitter 41, two output ends of the T-type power splitter 41
Mouth is connect with the radiation fin for being located at card slot two sides respectively, and 180 ° of the phase phase difference of two output ports, to form difference
Feed structure further improves the electric property of vivaldi antenna.Preferably, correspond to intermediate metal layer in lower metal layer
The input port of T-type power splitter 41 be provided with the feed circuit 5 being electrically connected with the input port of T-type power splitter 41, and institute
The input port of feed circuit 5 and T-type power splitter 41 is stated using 42 grounding connection of microstrip line in microstrip line/line of rabbet joint converter,
The microstrip line 42 runs through the dielectric-slab between intermediate metal layer and lower metal layer, and the microstrip line 42 and metallic vias 6
It does not contact.
The side radiation fin 32 is also provided with multiple load slots 7, length direction of multiple load slots 7 along metal layer
Equidistant arrangement, further improves the electric property of vivaldi antenna.
The vivaldi antenna of above example can be used alone, can also be by two radiation and the identical vivaldi of feed structure
Antennas orthogonal connection is to constitute dual polarized antenna of the low-cross polarization than, high port isolation.
The invention further relates to a kind of dual polarization made of two vivaldi antenna combinations as described above probes.Institute
Stating card slot includes the first card slot 11 for being opened in a vivaldi antenna and the second card for being opened in another vivaldi antenna
Slot 21.The vivaldi antenna for offering the first card slot 11 to be defined as first antenna unit 1, offers second convenient for expression
The vivaldi antenna of card slot 21 is defined as the second antenna element 2, and the first card slot 11 and the second card slot 21 are respectively positioned on vivaldi days
The opening direction of the midline position of line, the opening direction of the first card slot 11 and the second card slot 21 is on the contrary, so as to for first antenna
Unit 1 and the second vertically clamping of antenna element 2.Preferably, the sum of the length of the first card slot 11 and the second card slot 21 is equal to
The width of the length of vivaldi antenna, the first card slot 11 and the second card slot 21, which matches with the thickness of vivaldi antenna, to be set
It sets.
It is clamped by cooperating the first antenna unit 1 and the second antenna element 2 with card slot, so that first antenna unit
1 and second antenna element 2 link together in right-angled intersection, constitute the dual polarization probe of orthogonal connection, at this time described first
The aerial radiation opening of the vivaldi structure of antenna element 1 and second antenna element 2 is towards identical, and the width of card slot
Degree is equal to the thickness of vivaldi antenna, so that first antenna unit 1 and the second antenna element 2 can stablize clamping.
The radiation fin for being located at card slot two sides simultaneously can be respectively formed vivaldi structure in card slot two sides, to can avoid the
The vivaldi structure of one antenna element 1 and the second antenna element 2, which exists, to be overlapped, without the circle for destroying wherein vivaldi structure
Shape slot 331, structure is simple, to guarantee the phase center T that is consistent, and passing through intermediate metal layer of two orthogonal antenna elements
Type power splitter can realize the differential feed of antenna, to reach jamproof purpose.
Double fluting vivaldi structures of the vivaldi antenna can generate the electric field of similar plane wave in the face antenna E,
So that antenna working frequency range radiation medium plate field distribution it is more uniform, concentrate, antenna radiation pattern is more stable, electric field line
Along the first gradual change slot 332 of radiation fin and the second gradual change slot 333 flowing and generate stronger radiation so that antenna element have it is super
Wide working frequency range, is improved antenna gain, especially in high band, and the double fluting vivaldi structures used, it can
To be effectively improved low side standing wave, so that antenna has good high frequency cross polarization level, and isolation with higher, day
Line superior performance.
And make antenna structure simple using double fluting vivaldi structures, with small in size, machining accuracy is high, phase
The good feature of consistency.
In addition, in the load slot 7 that side radiation fin 32 is arranged, can make current convergence the first gradual change slot 332 and second gradually
Become near slot 333 and flow, to make energy preferably radiate to realize the ultra wide band design of antenna, while can also reduce
Antenna keeps Antenna Impedance Matching effect best in the return loss of low frequency.
In conjunction with Fig. 4 and Fig. 5, dual polarization probe of the invention has carried out performance simulation, Fig. 4 using full-wave electromagnetic simulation software
Isolation simulation result diagram between antenna port, it is seen that in frequency between 4GHz-6.5GHz, height of the invention is frequency polarized
Isolation maximum up to 48db, and pass through the port coupling isolation S21 of the T-type power splitter of intermediate metal layer substantially 40db with
Under.
In order to characterize the radiation characteristic popped one's head in of the present invention, XOY plane and YOZ plane the two principal planes are selected, Fig. 5 is provided
Radiation gain curve in two principal planes, to obtain radiation characteristic when 6GHz of the present invention, wherein simulation result can be seen
Out, which shows broad beam directional diagram performance on two polarization ports, and within the scope of main beam, radiation field is approximately
Linear polarization, but directional diagram shows certain asymmetry；Two polarization ports of the antenna can perceive two electricity respectively
The working performance of dual polarization broadband may be implemented in magnetic field polarization components.
The above is only some embodiments of the invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of vivaldi antenna, it is characterized in that: including upper, middle and lower-ranking metal layer and being located in adjacent two metal interlevel
Dielectric-slab forms vivaldi aerial radiation structure on upper and lower metal layer, formed on intermediate metal layer feed structure and with it is described
The electrical connection of vivaldi aerial radiation structure；
Wherein, the vivaldi includes the radiation fin being symmetrical set, and the radiation fin includes intermediate radiation fin and is connected to
The side radiation fin of intermediate radiation fin two sides offers the radiation line of rabbet joint between the intermediate radiation fin and the side radiation fin；
The vivaldi antenna along the middle line of the intermediate radiation fin offer for another vivaldi antennas orthogonal
The card slot of clamping.
2. a kind of vivaldi antenna according to claim 1, it is characterized in that: the feed structure packet of the intermediate metal layer
T-type power splitter is included, two output ports of the T-type power splitter are connect with the radiation fin for being located at card slot two sides respectively, and two
180 ° of the phase phase difference of output port.
3. a kind of vivaldi antenna according to claim 2, it is characterized in that: lower metal layer corresponds to the intermediate gold
The input port for belonging to the T-type power splitter of layer is provided with the feed circuit being electrically connected with the input port of T-type power splitter.
4. a kind of vivaldi antenna according to claim 3, it is characterized in that: the feed circuit and T of the lower metal layer
The input port of type power splitter is using the microstrip line grounding connection in microstrip line/line of rabbet joint converter.
5. a kind of vivaldi antenna according to claim 1, it is characterized in that: the side radiation fin opens up multiple loads
Slot.
6. a kind of vivaldi antenna according to claim 5, it is characterized in that: length of multiple load slots along metal layer
It equidistantly arranges in degree direction.
7. a kind of vivaldi antenna according to claim 1, it is characterized in that: the radiation line of rabbet joint includes circular trough, along side
The first gradual change slot that the side of side radiation fin extends and the second gradual change slot extended along the side of intermediate radiation fin, described first gradually
Become slot to connect with circular trough with the second gradual change slot, the first gradual change slot is greater than the second gradual change slot.
8. a kind of vivaldi antenna according to claim 1, it is characterized in that: the dielectric-slab and upper, middle and lower metal layer
The periphery of upper corresponding radiation fin offers several metallic vias, and the dielectric-slab is formed with upper and lower metal layer by metallic vias
Substrate waveguiding structure.
9. a kind of dual polarization probe, including two vivaldi antennas as claimed in any one of claims 1 to 8, by described
Card slot is mutually perpendicular to be clamped.
10. a kind of dual polarization probe according to claim 9, it is characterized in that: the card slot includes being opened in one
First card slot of vivaldi antenna and the second card slot for being opened in another vivaldi antenna, the opening direction of the first card slot and the
The opening direction of two draw-in groove is on the contrary, two vivaldi antennas are engaged by clamping by the first card slot with the second card slot with vertical
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308723.2A CN109586018A (en) | 2018-11-05 | 2018-11-05 | A kind of vivaldi antenna and dual polarization probe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308723.2A CN109586018A (en) | 2018-11-05 | 2018-11-05 | A kind of vivaldi antenna and dual polarization probe |
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| Publication Number | Publication Date |
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| CN109586018A true CN109586018A (en) | 2019-04-05 |
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| CN201811308723.2A Pending CN109586018A (en) | 2018-11-05 | 2018-11-05 | A kind of vivaldi antenna and dual polarization probe |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429391A (en) * | 2019-06-19 | 2019-11-08 | 朱永忠 | A kind of snail orbital angular momentum Vivaldi array antenna and method |
| CN111129758A (en) * | 2020-01-14 | 2020-05-08 | 上海霍莱沃电子系统技术股份有限公司 | Broadband dual-polarization tapered slot probe antenna |
| CN111463562A (en) * | 2020-03-03 | 2020-07-28 | 杭州电子科技大学 | Ultra-wideband differential feed PIFA antenna with filtering effect |
| CN111463563A (en) * | 2020-03-03 | 2020-07-28 | 杭州电子科技大学 | Ultra-wideband differential PIFA antenna suitable for 5G communication |
| CN111490342A (en) * | 2020-04-24 | 2020-08-04 | 电子科技大学 | Ultra-wideband dual-polarized lens antenna based on Vivaldi antenna form |
| CN111987448A (en) * | 2020-09-18 | 2020-11-24 | 上海无线电设备研究所 | Dual-polarized Vivaldi antenna |
| CN112151958A (en) * | 2020-09-25 | 2020-12-29 | 重庆两江卫星移动通信有限公司 | Plane end-fire circularly polarized antenna |
| CN112736430A (en) * | 2020-12-24 | 2021-04-30 | 杭州电子科技大学 | Broadband wide-beam unmanned aerial vehicle navigation antenna |
| CN113054424A (en) * | 2021-03-16 | 2021-06-29 | 杭州永谐科技有限公司东莞分公司 | A miniaturized Vivaldi antenna that is used for low frequency ultra wide band of probe |
| CN113363704A (en) * | 2021-04-27 | 2021-09-07 | 西安电子科技大学 | Ultra-wideband double-slot dual-polarization Vivaldi antenna and application |
| CN115548665A (en) * | 2022-10-25 | 2022-12-30 | 西安电子科技大学广州研究院 | Vivaldi antenna |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429391A (en) * | 2019-06-19 | 2019-11-08 | 朱永忠 | A kind of snail orbital angular momentum Vivaldi array antenna and method |
| CN111129758A (en) * | 2020-01-14 | 2020-05-08 | 上海霍莱沃电子系统技术股份有限公司 | Broadband dual-polarization tapered slot probe antenna |
| CN111463562A (en) * | 2020-03-03 | 2020-07-28 | 杭州电子科技大学 | Ultra-wideband differential feed PIFA antenna with filtering effect |
| CN111463563A (en) * | 2020-03-03 | 2020-07-28 | 杭州电子科技大学 | Ultra-wideband differential PIFA antenna suitable for 5G communication |
| CN111490342A (en) * | 2020-04-24 | 2020-08-04 | 电子科技大学 | Ultra-wideband dual-polarized lens antenna based on Vivaldi antenna form |
| CN111490342B (en) * | 2020-04-24 | 2021-06-01 | 电子科技大学 | Ultra-wideband dual-polarized lens antenna based on Vivaldi antenna form |
| CN111987448A (en) * | 2020-09-18 | 2020-11-24 | 上海无线电设备研究所 | Dual-polarized Vivaldi antenna |
| CN112151958A (en) * | 2020-09-25 | 2020-12-29 | 重庆两江卫星移动通信有限公司 | Plane end-fire circularly polarized antenna |
| CN112736430A (en) * | 2020-12-24 | 2021-04-30 | 杭州电子科技大学 | Broadband wide-beam unmanned aerial vehicle navigation antenna |
| CN113054424A (en) * | 2021-03-16 | 2021-06-29 | 杭州永谐科技有限公司东莞分公司 | A miniaturized Vivaldi antenna that is used for low frequency ultra wide band of probe |
| CN113363704A (en) * | 2021-04-27 | 2021-09-07 | 西安电子科技大学 | Ultra-wideband double-slot dual-polarization Vivaldi antenna and application |
| CN115548665A (en) * | 2022-10-25 | 2022-12-30 | 西安电子科技大学广州研究院 | Vivaldi antenna |
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Application publication date: 20190405 |