CN106299660A - A kind of Sidelobe ridge chip integrated waveguide slot array antenna - Google Patents
A kind of Sidelobe ridge chip integrated waveguide slot array antenna Download PDFInfo
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- CN106299660A CN106299660A CN201610825602.XA CN201610825602A CN106299660A CN 106299660 A CN106299660 A CN 106299660A CN 201610825602 A CN201610825602 A CN 201610825602A CN 106299660 A CN106299660 A CN 106299660A
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- ridge
- sidelobe
- array antenna
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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
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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Abstract
The invention discloses a kind of Sidelobe ridge chip integrated waveguide slot array antenna, including microstrip line, microstrip line balun, first medium plate, second medium plate, ridge metal tape, metal throuth hole, ridge metal throuth hole, short-circuit end, gap；First medium plate, second medium plate, ridge metal tape, metal throuth hole, ridge metal throuth hole, short-circuit end, gap constitute radiant body；Microstrip line constitutes the feeding network of antenna with microstrip line balun.The impedance bandwidth (VSWR < 2) of inventive antenna is 8.92～9.63GHz, and relative bandwidth is 7.8%, significantly larger than the relative bandwidth of about the 4% of chip integrated waveguide slot array antenna；In the gain of this frequency range internal antenna at about 10.3dB；In frequency band, minor level is less than 25dB, reduces the impact of the outer noise signal of main beam, can be effectively improved the capacity of resisting disturbance of whole system.
Description
Technical field
The invention belongs to antenna technical field, particularly relate to a kind of Sidelobe ridge chip integrated waveguide slot array antenna.
Background technology
At present, substrate integration wave-guide (SIW) is the similar square formed by upper and lower metal covering and two row's plated-through holes
The structure of shape waveguide.It has, and volume is little, lightweight, low cost, the advantage the most integrated with other planar circuits, can overcome again
The loss problem that the conventional planar transmission line such as micro-strip, co-planar waveguide exists at electromagnetic wave high band, becomes in recent years
Individual hot research direction.SIW width wall longitudinal slot array antenna is owing to having high-gain, high efficiency, low-cross polarization and can
The advantages such as accurate wave beam forming, are widely used in radar communications system.But, owing to the bandwidth of SIW single mode transport only has one
Individual frequency multiplication, its size is compared bigger with the planar transmission line of other forms (such as microstrip line, co-planar waveguide).In order to reduce SIW
Size, the technology of some miniaturizations is suggested.They are to add ridge SIW respectively, fold SIW, C-fold SIW, T-shaped folding SIW
With half module SIW etc., the broadside size of SIW is tapered to about original half.SIW width wall longitudinal slot array antenna be
Every λ on the broadside of SIWgThe distance of/2 drives the antenna of longitudinal slot.Its gap spacing is equal, and end short circuit, for resonant mode
Antenna, so its relative bandwidth is narrower, is about 4%, is extremely difficult to the requirement of radar and communications system.In order to overcome this
Defect, has a lot of method to be suggested.The plated-through hole transition structure such as utilizing micro-strip and SIW realizes apex drive SIW width
Wall longitudinal slot array slot antenna, can make the relative bandwidth of this antenna reach 7.9%.Utilize electromagnetism complementary dipole side
Method, is equivalent to magnetic dipole by SIW gap, paster shape dipole as equivalent magnetic dipole, thus by the phase of SIW slot antenna
To broadened bandwidth to about 19%.Ridge substrate integration wave-guide (RSIW) is a kind of Novel Delivery knot being derived by ridge waveguide
Structure.It has added two row's metal throuth holes on SIW, connects metal tape below through hole, forms ridge.Due to the existence of ridge, the TE of RSIW10Mould
Cut-off frequency reduce and TE20The cut-off frequency of mould does not changes much.Compared with SIW, RSIW can not only increase work strip
Width, also can reduce size simultaneously.The SIW width wall longitudinal slot array antenna and RSIW width wall longitudinal slot array antenna compares and
Speech, relative bandwidth can increase to 7.8%.
In sum, there is narrow bandwidth, ridge chip integrated waveguide slot battle array in existing chip integrated waveguide slot array antenna
The problem that minor level is high.
Summary of the invention
It is an object of the invention to provide a kind of Sidelobe ridge chip integrated waveguide slot array antenna, it is intended to solve existing
Chip integrated waveguide slot array antenna narrow bandwidth, the problem that ridge chip integrated waveguide slot battle array minor level is high.
The present invention is achieved in that a kind of Sidelobe ridge substrate integration wave-guide being applied in radar and communications system stitches
Gap array antenna, described Sidelobe ridge chip integrated waveguide slot array antenna is provided with by first medium plate, second medium
The radiant body that plate, ridge metal tape, metal throuth hole, ridge metal throuth hole, short-circuit end, gap are constituted；By microstrip line and microstrip line balun
The antenna feeding network constituted；Metal throuth hole, ridge metal tape, gap, microstrip line balun are positioned at first medium plate；Metal throuth hole,
Ridge metal throuth hole is positioned at second medium plate.Described Sidelobe ridge chip integrated waveguide slot array antenna:
Two layer medium plate superposition up and down；
Two layer medium both sides are provided with two row's metal throuth holes up and down；
Two row's ridge metal throuth holes it are provided with in the middle of top dielectric；
A vallate metal tape it is provided with below ridge structure；
Layer dielectric bottom surface is provided with the gap of eight different unequal lengths of biasing.
The microstrip line balun being arranged on layer dielectric plate；
Further, the distance of first clearance distance feed port is L1(11.56mm), the 8th clearance distance short-circuit end
Distance be L2(5.78mm)；The biasing in gap is followed successively by x1(0.35mm)、x2(0.68mm)、x3(1.65mm)、x4(2.1mm)、
x4(2.1mm)、x3(1.65mm)、x2(0.68mm)、x1(0.35mm)；The length in gap is followed successively by l1(9.87mm)、l2
(10.07mm)、l3(11.06mm)、l4(11.6mm)、l4(11.6mm)、l3(11.06mm)、l2(10.07mm)、l1(9.87mm)；
Gap width is w (0.4mm).
Further, a length of L of microstrip linem(15mm), width is Wm(3.39mm)；The width of a section of microstrip line balun
For Wm(3.39mm), the width of the other end is Wb(4.5mm), a length of Lb(6.5mm)。
Further, metal throuth hole and metal copper strips constitute ridge.
Further, dielectric-slab has two-layer, the thickness of first medium plate to be h1(2.032mm), the thickness of second medium plate is h2
(1.524)mm。
Further, the radius of metal throuth hole is 0.2mm, and pitch of holes is 0.8mm.
Further, the radius of ridge metal throuth hole and spacing are followed successively by 0.2mm, 0.8mm ridge metal tape width is 4.5mm.
The Sidelobe ridge chip integrated waveguide slot array antenna that the present invention provides, is used RSIW structure, is stitched by adjustment
The biasing of gap and length can control the current amplitude distribution in gap, thus reach the index of Sidelobe.There is broadband, small-sized
Change, light-weighted feature, and easily and planar circuit is integrated and carries out large-scale mass production.Compared with SIW, RSIW volume can
Reducing about 80%, weight can reduce about 40%.Using RSIW slot antenna, compared with SIW slot antenna, bandwidth can carry
Rise 2 times, about about 7.8%.
Accompanying drawing explanation
Fig. 1 is the Sidelobe ridge chip integrated waveguide slot array antenna structural representation that the embodiment of the present invention provides；
In figure: 1, microstrip line；2, microstrip line balun；3, first medium plate；4, second medium plate；5, ridge metal tape；6, gold
Belong to through hole；7, ridge metal throuth hole；8, short-circuit end；9, gap.
Fig. 2 is the Sidelobe ridge chip integrated waveguide slot array antenna structural representation that the embodiment of the present invention provides.
Fig. 3 is Sidelobe ridge chip integrated waveguide slot array antenna schematic bottom view and the mark of embodiment of the present invention offer
Note.
Fig. 4 is top view and the mark of the microstrip balun that the embodiment of the present invention provides.
Fig. 5 is Sidelobe ridge chip integrated waveguide slot array antenna side view and the mark of embodiment of the present invention offer.
Fig. 6 is reflection coefficient and the transmission coefficient curve synoptic diagram of the ridge substrate integration wave-guide that the embodiment of the present invention provides.
Fig. 7 is reflection coefficient and the transmission curve schematic diagram of the microstrip balun that the embodiment of the present invention provides.
Fig. 8 is the biasing resonance length curve synoptic diagram of the antenna slots that the embodiment of the present invention provides.
Fig. 9 is the biasing normalized conductance curve synoptic diagram of the antenna that the embodiment of the present invention provides.
Figure 10 is voltage standing wave ratio and the gain curve schematic diagram of the antenna that the embodiment of the present invention provides.
Figure 11 is that the antenna that the embodiment of the present invention provides is illustrated at the H face directional diagram of 8.92GHz, 9.3GHz, 9.63GHz
Figure；
In figure: a, 8.92GHz；b、9.3GHz；c、9.63GHz.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, to the present invention
It is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to
Limit the present invention.
Below in conjunction with the accompanying drawings the structure of the present invention is explained in detail.
As it is shown in figure 1, the Sidelobe ridge chip integrated waveguide slot array antenna that the embodiment of the present invention provides includes: micro-strip
Line 1, microstrip line balun 2, first medium plate 3, second medium plate 4, ridge metal tape 5, metal throuth hole 6, ridge metal throuth hole 7, short circuit
End 8, gap 9.
Two row's metal throuth holes 6 and metal copper strips constitute the ridge of RSIW, and the upper and lower surface of RSIW is metallic copper, is printed on type
Number it is on AD255 dielectric-slab.Dielectric-slab one has two-layer, and first medium plate 3 thickness is h1(2.032mm), second medium plate 4 is thick
Degree is h2(1.524mm).Gap 9 is successively set on the bottom surface of RSIW.
The metal material on microstrip line 1, the microstrip line balun 2 of trapezoidal gradual change and floor is copper, and they are printed on dielectric-slab,
Constitute the feeding network of RSIW.
Radiant body is the lap gating system of RSIW, and feed body is the microstrip line balun 2 of microstrip line 1 and trapezoidal gradual change.
The width of RSIW is 15mm.It is superimposed by two layer medium plate, and the thickness of first medium plate 3 is h1
(2.032mm), the thickness of second medium plate 4 is h2(1.524mm).There is the two row's metal throuth holes 6 sidewall as it on RSIW both sides,
The radius of through hole is 0.2mm, and pitch of holes is 0.8mm.There is two exhausting holes ridge metal throuth hole 7 as waveguide the centre of RSIW, logical
Radius and the spacing in hole are followed successively by 0.2mm, 0.8mm.There is a vallate metal tape 5 lower section of ridge, and width is 4.5mm, length with
The length of RSIW keeps consistent.
Eight gaps 9 are had in the bottom surface one of RSIW.The distance of first clearance distance RSIW feed port is L1
(11.56mm), the distance of the 8th clearance distance RSIW short-circuit end 8 is L2((5.78mm), the spacing in gap 9 is L1
(11.56mm).The biasing in gap 9 is followed successively by x1(0.35mm)、x2(0.68mm)、x3(1.65mm)、x4(2.1mm)、x4
(2.1mm)、x3(1.65mm)、x2(0.68mm)、x1(0.35mm).The length in gap 9 is followed successively by l1(9.87mm)、l2
(10.07mm)、l3(11.06mm)、l4(11.6mm)、l4(11.6mm)、l3(11.06mm)、l2(10.07mm)、l1(9.87mm)。
Gap 9 width is w (0.4mm).
The feed Balun of RSIW slot antenna is the microstrip line balun 2 of trapezoidal gradual change, wherein a length of L of microstrip line 1m
(15mm), width is Wm(3.39mm), the width of a section of balun is Wm(3.39mm), the width of the other end is Wb(4.5mm),
A length of Lb(6.5mm)。
Below in conjunction with emulation, the application effect of the present invention is explained in detail.
1, emulation content
Utilize simulation software that the voltage standing wave ratio of examples detailed above antenna, gain, directional diagram are emulated.
2, simulation result
Fig. 6 is reflection coefficient and the transmission coefficient parameter curve of the ridge substrate integration wave-guide in example antenna.Can from figure
To find out, in the frequency band of 5.91GHz～13.8GHz, reflection coefficient is less than-15dB, and transmission coefficient is more than-1.4dB.
Fig. 7 is reflection coefficient and the transmission coefficient parameter curve of the microstrip balun in example antenna.It can be seen that
In the frequency band of 4GHz～14GHz, the transmission performance of balun is good.
Fig. 8 is the biasing resonance length curve in gap in example antenna, it is shown that the situation that gap biases in difference
The resonance length of lower correspondence.
Fig. 9 is the biasing normalized conductance curve in gap in example antenna, it is shown that the feelings that gap biases in difference
Normalization resonant conductance value corresponding under condition.
Figure 10 is the curve changed the example antenna voltage standing wave ratio that obtains of emulation and gain with frequency, permissible from figure
Finding out, in 8.92～9.63GHz, voltage standing wave ratio is less than 2, and gain is at about 10.3dB.
Figure 11 is main polarization to the H face that obtains of example antenna emulation and Cross polarization pattern, including 8.92GHz,
Tri-frequencies of 9.3GHz and 9.63GHz.As can be seen from the figure secondary lobe on tri-frequencies of 8.92GHz, 9.3GHz and 9.63GHz
Level is respectively less than-25dB, meets the index of Sidelobe.Cross polarization level is less than-25dB.
The Sidelobe ridge chip integrated waveguide slot array antenna that the embodiment of the present invention provides, SIW combines conventional metals
The advantage of the planar transmission line such as waveguide and microstrip line, utilizes the PCB technology of low cost to realize being similar on dielectric substrate
The structure of metal waveguide.On dielectric substrate, forming the plated-through hole that two rows are compact, a diameter of d of through hole, through-hole spacing is
p.When through-hole spacing p is sufficiently small when, the energy that electromagnetic wave leaks between through hole is the least, is negligible.Two rows are led to
Hole can be considered as the sidewall of waveguide, and the metal level that dielectric substrate upper and lower surface covers can be considered as the wide wall of waveguide, thus shape
Become to be similar to the SIW of dielectric-filled waveguide.In conventional waveguide, add longitudinal metal ridge can improve the bandwidth of operation of waveguide,
Without affecting its transmission characteristic.In order to improve the single mode transport bandwidth of operation of SIW, it is proposed that RSIW.RSIW is in SIW
Between add the unsettled metal column of the two rows periodic arrangement similar with two side, metal column coupled underneath metal tape, with medium
There is the gap of certain interval between plate bottom surface, form ridge electric capacity, thus reduce TE10The cut-off frequency of mould, but have no effect on it and pass
Defeated characteristic, thus TE10The bandwidth of operation of mould can be with broadening.Permissible by optimizing the width of ridge radius, ridge height and metal tape
Obtain the RSIW of broader bandwidth.RSIW width wall longitudinal slot array antenna one end is feed end, and the other end is short circuit.To RSIW's
Cracking in bottom surface, wherein the spacing in gap is λg/2(λgFor waveguide wavelength), first gap is away from feed end λg/ 2, last
Individual gap is away from short-circuit end λg/4.Increase the width in gap and can promote the power capacity of impedance bandwidth and slot antenna, but also
Symmetry and the polarization of antenna pattern can be deteriorated.By simulation optimization, the width in inventive antenna gap is w (0.4mm).Should
The gap of antenna can be equivalent to shunt admittance, the admittance value difference that different biasings are corresponding with the gap of length.Due between gap
Mutual coupling the fiercest, consider the active admittance value in gap in the case of mutual coupling so to extract.Finally according to minor level
Index determines CURRENT DISTRIBUTION, determines the admittance distribution in gap further according to CURRENT DISTRIBUTION, thus obtains its biasing and length.RSIW's
Feed Balun is the feed microstrip line balun of trapezoidal gradual change.The width of one end of balun is the width that 50 Europe microstrip lines are corresponding, separately
The width of one end is the width of ridge metal tape, RSIW can be made to have preferably biography in working band by the length optimizing balun
The radiation characteristic of defeated characteristic and RSIW slot antenna does not have the biggest change.
Comprehensively use abovementioned technology, can be that the bandwidth of RSIW slot antenna is promoted to 7.8%, make its size simultaneously
Reduce, it is achieved Sidelobe characteristic.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (9)
1. a Sidelobe ridge chip integrated waveguide slot array antenna, it is characterised in that the described Sidelobe integrated ripple of ridge substrate
Waveguide slot array antenna is provided with
The spoke being made up of first medium plate, second medium plate, ridge metal tape, metal throuth hole, ridge metal throuth hole, short-circuit end, gap
Beam；
The antenna feeding network being made up of with microstrip line balun microstrip line；Metal throuth hole, ridge metal tape, gap, microstrip line balun
It is positioned at first medium plate；Metal throuth hole, ridge metal throuth hole are positioned at second medium plate；
Described Sidelobe ridge chip integrated waveguide slot array antenna:
Two layer medium plate superposition up and down；
Two layer medium both sides are provided with two row's metal throuth holes up and down；
Two row's ridge metal throuth holes it are provided with in the middle of top dielectric；
A vallate metal tape it is provided with below ridge structure；
Layer dielectric bottom surface is provided with the gap of eight different unequal lengths of biasing.
The microstrip line balun being arranged on layer dielectric plate.
2. Sidelobe ridge chip integrated waveguide slot array antenna as claimed in claim 1, it is characterised in that first gap
The distance of distance feed port is L1(11.56mm), the distance of the 8th clearance distance short-circuit end is L2(5.78mm)；Gap
Biasing is followed successively by x1(0.35mm)、x2(0.68mm)、x3(1.65mm)、x4(2.1mm)、x4(2.1mm)、x3(1.65mm)、x2
(0.68mm)、x1(0.35mm)；The length in gap is followed successively by l1(9.87mm)、l2(10.07mm)、l3(11.06mm)、l4
(11.6mm)、l4(11.6mm)、l3(11.06mm)、l2(10.07mm)、l1(9.87mm)；Gap width is w (0.4mm).
3. Sidelobe ridge chip integrated waveguide slot array antenna as claimed in claim 1, it is characterised in that the length of microstrip line
Degree is Lm(15mm), width is Wm(3.39mm)；The width of a section of microstrip line balun is Wm(3.39mm), the width of the other end
For Wb(4.5mm), a length of Lb(6.5mm)。
4. Sidelobe ridge chip integrated waveguide slot array antenna as claimed in claim 1, it is characterised in that metal throuth hole and
Metal tape constitutes ridge.
5. Sidelobe ridge chip integrated waveguide slot array antenna as claimed in claim 1, it is characterised in that dielectric-slab has two
Layer, the thickness of first medium plate is h1(2.032mm), the thickness of second medium plate is h2(1.524)mm。
6. Sidelobe ridge chip integrated waveguide slot array antenna as claimed in claim 1, it is characterised in that metal throuth hole
Radius is 0.2mm, and pitch of holes is 0.8mm.
7. Sidelobe ridge chip integrated waveguide slot array antenna as claimed in claim 1, it is characterised in that ridge metal throuth hole
Radius and spacing to be followed successively by 0.2mm, 0.8mm ridge metal tape width be 4.5mm.
8. apply the radar of Sidelobe ridge chip integrated waveguide slot array antenna described in claim 1～7 any one for one kind.
9. apply the communication of Sidelobe ridge chip integrated waveguide slot array antenna described in claim 1～7 any one for one kind
System.
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| CN201610825602.XA CN106299660A (en) | 2016-09-17 | 2016-09-17 | A kind of Sidelobe ridge chip integrated waveguide slot array antenna |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994323A (en) * | 2017-11-27 | 2018-05-04 | 上海航天测控通信研究所 | A kind of method and its device for designing slotted waveguide antenna |
| CN108321528A (en) * | 2018-01-18 | 2018-07-24 | 华南理工大学 | A kind of slot antenna array of simplified feed structure |
| CN108832293A (en) * | 2018-06-27 | 2018-11-16 | 电子科技大学 | A kind of substrate integration wave-guide leaky wave slot array antenna near field two-dimensional scanning |
| CN110323574A (en) * | 2018-03-30 | 2019-10-11 | 北京木牛领航科技有限公司 | Waveguide antenna configurations and method |
| CN111541027A (en) * | 2020-04-23 | 2020-08-14 | 西安电子科技大学 | Multimode resonance broadband antenna based on substrate integrated waveguide resonant cavity |
| CN113540803A (en) * | 2020-04-14 | 2021-10-22 | 华为技术有限公司 | Series feed antenna, communication equipment and method for manufacturing series feed antenna |
| CN113540826A (en) * | 2021-07-14 | 2021-10-22 | 上海交通大学 | Linear tapered slit form-based radiating fin antenna array structure |
| CN113690576A (en) * | 2021-08-25 | 2021-11-23 | 南京隼眼电子科技有限公司 | Microstrip antenna and wireless signal transmission device |
| CN114784493A (en) * | 2022-05-05 | 2022-07-22 | 北京华镁钛科技有限公司 | Compact terminal array antenna and handheld terminal comprising same |
| CN115189150A (en) * | 2022-06-08 | 2022-10-14 | 电子科技大学 | Low sidelobe waveguide slot array antenna and design method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994323A (en) * | 2017-11-27 | 2018-05-04 | 上海航天测控通信研究所 | A kind of method and its device for designing slotted waveguide antenna |
| CN107994323B (en) * | 2017-11-27 | 2020-01-14 | 上海航天测控通信研究所 | Method and device for designing waveguide slot array antenna |
| CN108321528A (en) * | 2018-01-18 | 2018-07-24 | 华南理工大学 | A kind of slot antenna array of simplified feed structure |
| CN108321528B (en) * | 2018-01-18 | 2023-12-29 | 华南理工大学 | Groove antenna array with simplified feed structure |
| CN110323574A (en) * | 2018-03-30 | 2019-10-11 | 北京木牛领航科技有限公司 | Waveguide antenna configurations and method |
| CN108832293B (en) * | 2018-06-27 | 2020-12-18 | 电子科技大学 | Substrate integrated waveguide leaky-wave slot array antenna for near-field two-dimensional scanning |
| CN108832293A (en) * | 2018-06-27 | 2018-11-16 | 电子科技大学 | A kind of substrate integration wave-guide leaky wave slot array antenna near field two-dimensional scanning |
| CN113540803A (en) * | 2020-04-14 | 2021-10-22 | 华为技术有限公司 | Series feed antenna, communication equipment and method for manufacturing series feed antenna |
| CN111541027A (en) * | 2020-04-23 | 2020-08-14 | 西安电子科技大学 | Multimode resonance broadband antenna based on substrate integrated waveguide resonant cavity |
| CN113540826A (en) * | 2021-07-14 | 2021-10-22 | 上海交通大学 | Linear tapered slit form-based radiating fin antenna array structure |
| CN113540826B (en) * | 2021-07-14 | 2022-10-14 | 上海交通大学 | Linear tapered slit form-based radiating fin antenna array structure |
| CN113690576A (en) * | 2021-08-25 | 2021-11-23 | 南京隼眼电子科技有限公司 | Microstrip antenna and wireless signal transmission device |
| CN113690576B (en) * | 2021-08-25 | 2024-05-07 | 南京隼眼电子科技有限公司 | Microstrip antenna and wireless signal transmission device |
| CN114784493A (en) * | 2022-05-05 | 2022-07-22 | 北京华镁钛科技有限公司 | Compact terminal array antenna and handheld terminal comprising same |
| CN115189150A (en) * | 2022-06-08 | 2022-10-14 | 电子科技大学 | Low sidelobe waveguide slot array antenna and design method |
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Application publication date: 20170104 |
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