CN106711603A - Single-cavity three-mode filter slot antenna based on waveguide feed - Google Patents
Single-cavity three-mode filter slot antenna based on waveguide feed Download PDFInfo
- Publication number
- CN106711603A CN106711603A CN201710092638.6A CN201710092638A CN106711603A CN 106711603 A CN106711603 A CN 106711603A CN 201710092638 A CN201710092638 A CN 201710092638A CN 106711603 A CN106711603 A CN 106711603A
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- China
- Prior art keywords
- gap
- resonator
- baffle plate
- slot antenna
- chamber
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Classifications
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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
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
-
- 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
- H01Q13/18—Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas
Abstract
The invention discloses a single-cavity three-mode filter slot antenna based on waveguide feed. The antenna comprises a resonant cavity and a baffle, a first gap having a deviation angle is formed at the bottom of the resonant cavity, and the first gap is connected with a rectangular waveguide; the baffle is arranged on the outer wall of the top of the resonant cavity and provided with a second gap having a deviation angle, and the second gap is used as a slot antenna; the first gap viewed from the bottom of the resonant cavity is of a rectangular structure having the deviation angle; the second gap viewed from the top of the baffle is of a rectangular structure having the deviation angle; and the projection of the first gap on the top of the baffle is intersected with the second gap. The antenna can realize a band-pass filter, has the advantages of small size, simple design, easiness in machining, good performance and the like, can well meet the requirements of modern communication systems, and solves the problem that a zero point is difficult to produce in the existing single-cavity single-mode antenna.
Description
Technical field
The present invention relates to a kind of antenna, especially a kind of mould of single-chamber three filtering slot antenna based on waveguide feed, belongs to nothing
The line communications field.
Background technology
Microwave filtering antenna is transmitting terminal and the essential device of receiving terminal, filtering part therein in Modern Communication System
Point centrifugation can be played to signal, allow useful signal is as zero-decrement as possible to be passed through, it is as big as possible to useless signal to decline
It passes through to subtract suppression, and antenna part is transformed into the guided wave propagated on cavity at unbounded medium (typically free space)
The electromagnetic wave of middle propagation is so as to the purpose for realizing radiating.With the development of wireless communication technology, the frequency band between signal is more and more narrow,
This just proposes requirement higher to the specification and reliability of wave filter.Cavity body filter has high q-factor, power capacity big, easy
In realize, steady performance and there is application value very high.Cavity body filter adds groove by upper and lower surfaces, realizes
Inductance or Capacitance Coupled, coupling inductance or coupled capacitor are controlled by changing the position skew of groove, angle, width, length etc.
The strong and weak appearance to realize various filter functions and three moulds.And slot antenna radiation is relatively good, performance is good, simple structure,
Easily realize.Due to above feature, research cavity filtering slot antenna multi-mode structure, cavity filter the miniaturization of slot antenna
The extensive concern of persons.
The content of the invention
A kind of defect the invention aims to solve above-mentioned prior art, there is provided single-chamber based on waveguide feed
Three moulds filter slot antenna, and the antenna can realize bandpass filter, and with small volume, that design is simple, easy processing, performance are good etc. is excellent
Point, can be good at meeting the requirement of modern communication systems.
The purpose of the present invention can be reached by adopting the following technical scheme that：
The mould of single-chamber three filtering slot antenna based on waveguide feed, including resonator and baffle plate, the bottom of the resonator is opened
There is first gap with deviation angle, first gap connects rectangular waveguide；The baffle plate setting is on the top of resonator
One is provided with portion's outer wall, and on baffle plate has the second gap of deviation angle.
Used as a kind of preferred scheme, first gap is opened in the bottom interior wall of resonator to the position of bottom outer wall,
Second gap is opened in the top of baffle plate to the position of bottom.
Used as a kind of preferred scheme, first gap is the rectangle with deviation angle from the bottom surface of resonator
Structure；Second gap is the rectangular configuration with deviation angle from the top surface of baffle plate；First gap is in baffle plate
Projection on top surface is intersected with the second gap.
Used as a kind of preferred scheme, the open top of the resonator, the length of the baffle plate is opened more than resonator top
The length of mouth, the width of baffle plate is more than the open-topped width of resonator.
Used as a kind of preferred scheme, the length of the baffle plate is identical with the length of resonator top exterior walls, the width of baffle plate
Width with resonator top exterior walls is identical.
Used as a kind of preferred scheme, first gap is identical with the size in the second gap.
Used as a kind of preferred scheme, the baffle plate is fixed by screws in the top exterior walls of resonator.
Used as a kind of preferred scheme, the resonator and baffle plate are made of metal material.
Used as a kind of preferred scheme, the resonator is rectangle cavity configuration.
Used as a kind of preferred scheme, the inside of the resonator is filled with air.
The present invention has following beneficial effect relative to prior art：
1st, the present invention has resonator and baffle plate, and being provided with one in the bottom of resonator has the gap of deviation angle, will keep off
Plate is arranged in the top exterior walls of resonator, and a gap with deviation angle, the seam of resonator bottom are provided with baffle plate
Gap connects rectangular waveguide, and used as slot antenna, the rectangular waveguide connected using resonator bottom gap is fed, produced in the gap of baffle plate
Three patterns, will carry out resonator, filter in energy input to resonator, after resonator, filter, by the gap of baffle plate by energy spoke
It is shot out, disclosure satisfy that miniaturization, high selectivity, high q-factor, the features such as design and process simple, overcomes existing single-chamber single mode institute
The zero point of presence produces difficult problem.
2nd, by wave filter together with aerial integration, simple structure, has a wide range of application at handling ease the present invention, solves
Its complicated processing problems.
Brief description of the drawings
Fig. 1 is the mould filter slot antenna structure view of single-chamber three of the embodiment of the present invention 1.
Fig. 2 is the mould of the single-chamber three filtering slot antenna left side view of the embodiment of the present invention 1.
Fig. 3 is the mould of the single-chamber three filtering slot antenna top view of the embodiment of the present invention 1.
Fig. 4 filters the frequency response Electromagnetic Simulation curve map of slot antenna for the mould of single-chamber three of the embodiment of the present invention 1.
Rectangular metal block schematic diagram when Fig. 5 is the mould of the single-chamber three filtering slot antenna for processing the embodiment of the present invention 1.
Metallic plate schematic diagram when Fig. 6 is the mould of the single-chamber three filtering slot antenna for processing the embodiment of the present invention 1.
Wherein, 1- resonators, 2- baffle plates, the gaps of 3- first, the gaps of 4- second.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited
In this.
Embodiment 1：
As shown in FIG. 1 to 3, the mould of the single-chamber three filtering slot antenna of the present embodiment includes resonator 1 and baffle plate 2, described humorous
Chamber 1 shake for rectangle cavity configuration, inside is filled with air, the open top of resonator 1；The baffle plate 2 is fixed by screws in humorous
Shake in the top exterior walls in chamber 1, the length of baffle plate 2 is more than the open-topped length of resonator 1, and the width of baffle plate 2 is more than resonator 1
Open-topped width, in the present embodiment, the length of baffle plate 2 is identical with the length of the top exterior walls of resonator 1, the width of baffle plate 2
Width with the top exterior walls of resonator 1 is identical；The bottom of resonator 1 is provided with one has the first gap 3 of deviation angle, baffle plate 2
On be provided with one there is the second gap 4 of deviation angle, the deviation angle in the gap 4 of the first gap 3 and second can be 30~60
Degree, the deviation angle in the present embodiment is 45 degree, and the first gap 3 is identical with the size in the second gap 4.
First gap 3 is opened in the bottom interior wall of resonator 1 to the position of bottom outer wall, and second gap 4 is opened
On the position at the top of baffle plate 2 to bottom；First gap 3 is with deviation angle from the bottom surface of resonator 1
Rectangular configuration；Second gap 4 is the rectangular configuration with deviation angle from the top surface of baffle plate；First gap 3
Projection on the top surface of baffle plate 2 is intersected with the second gap 4.
The frequency slot antenna operation principle of three work of single-chamber three of the present embodiment is as follows：
First gap 3 connects rectangular waveguide, and used as slot antenna, the rectangular waveguide in the first gap 3 is input in the second gap 4
Mouth (first port), the second gap 4 is output port (second port), and the rectangular waveguide connected using the first gap 3 is fed, and is produced
Raw three patterns, will carry out resonator, filter inside energy input to resonator 1, after resonator, filter, by the second gap 4 by energy
Amount radiate, and frequency response Electromagnetic Simulation curve is as shown in figure 4, S1,1 represents the return loss of first port.
The frequency slot antenna process of three work of single-chamber three of the present embodiment is as follows：
Part I：As shown in figure 5, opening a rectangular cavity in the middle of a rectangular metal block as resonator 1, resonator
It is the R-joining (the first gap 3) of θ that 1 bottom stays certain thickness to open a skew, and the R-joining directly connects rectangular waveguide and energy
Three patterns are produced, is directly open at the top of resonator 1；
Part II：As shown in fig. 6, using one piece of metallic plate as baffle plate 2, a R-joining offset as θ is opened in baffle plate 2
(the second gap 4), used as slot antenna, the length and width size of baffle plate 2 should be bigger than the open top of resonator 1 for the R-joining, to meet full envelope
The requirement closed.
Part I and Part II are screwed, rectangular waveguide are finally connected and is tested.
In above-described embodiment, the metal material that the resonator and baffle plate are used can be aluminium, iron, tin, copper, silver, Jin He
Any one of platinum, or can be aluminium, iron, tin, copper, silver, gold and the platinum alloy of any one.
In sum, the present invention has resonator and baffle plate, and being provided with one in the bottom of resonator has the seam of deviation angle
Gap, by baffle plate setting in the top exterior walls of resonator, and is provided with a gap with deviation angle, resonator bottom on baffle plate
The gap connection rectangular waveguide in portion, used as slot antenna, the rectangular waveguide connected using resonator bottom gap is presented in the gap of baffle plate
Electricity, produces three patterns, resonator, filter will be carried out in energy input to resonator, after resonator, filter, by the gap of baffle plate
Energy is radiate, miniaturization, high selectivity is disclosure satisfy that, high q-factor, the features such as design and process simple, is overcome existing list
Zero point existing for the single mode of chamber produces difficult problem.
The above, patent preferred embodiment only of the present invention, but the protection domain of patent of the present invention is not limited to
This, any one skilled in the art in the scope disclosed in patent of the present invention, according to the skill of patent of the present invention
Art scheme and its inventive concept are subject to equivalent or change, belong to the protection domain of patent of the present invention.
Claims (10)
1. the mould of single-chamber three based on waveguide feed filters slot antenna, it is characterised in that：Including resonator and baffle plate, the resonator
Bottom be provided with one there is the first gap of deviation angle, first gap connects rectangular waveguide；The baffle plate setting is humorous
Shaking in the top exterior walls in chamber, and one is provided with baffle plate has the second gap of deviation angle, and second gap is used as slot antenna.
2. the mould of single-chamber three based on waveguide feed according to claim 1 filters slot antenna, it is characterised in that：Described first
Gap is opened in the bottom interior wall of resonator to the position of bottom outer wall, and second gap is opened in top to the bottom of baffle plate
On position.
3. the mould of single-chamber three based on waveguide feed according to claim 1 filters slot antenna, it is characterised in that：Described first
Gap is the rectangular configuration with deviation angle from the bottom surface of resonator；Second gap from the top surface of baffle plate,
It is the rectangular configuration with deviation angle；Projection of first gap on baffle plate top surface is intersected with the second gap.
4. the mould of single-chamber three based on waveguide feed according to claim any one of 1-3 filters slot antenna, it is characterised in that：
The open top of the resonator, the length of the baffle plate is more than the open-topped length of resonator, and the width of baffle plate is more than humorous
Shake the width of top of chamber opening.
5. the mould of single-chamber three based on waveguide feed according to claim 4 filters slot antenna, it is characterised in that：The baffle plate
Length it is identical with the length of resonator top exterior walls, the width of baffle plate is identical with the width of resonator top exterior walls.
6. the mould of single-chamber three based on waveguide feed according to claim any one of 1-3 filters slot antenna, it is characterised in that：
First gap is identical with the size in the second gap.
7. the mould of single-chamber three based on waveguide feed according to claim any one of 1-3 filters slot antenna, it is characterised in that：
The baffle plate is fixed by screws in the top exterior walls of resonator.
8. the mould of single-chamber three based on waveguide feed according to claim any one of 1-3 filters slot antenna, it is characterised in that：
The resonator and baffle plate are made of metal material.
9. the mould of single-chamber three based on waveguide feed according to claim any one of 1-3 filters slot antenna, it is characterised in that：
The resonator is rectangle cavity configuration.
10. the mould of single-chamber three based on waveguide feed according to claim any one of 1-3 filters slot antenna, and its feature exists
In：The inside of the resonator is filled with air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092638.6A CN106711603A (en) | 2017-02-21 | 2017-02-21 | Single-cavity three-mode filter slot antenna based on waveguide feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092638.6A CN106711603A (en) | 2017-02-21 | 2017-02-21 | Single-cavity three-mode filter slot antenna based on waveguide feed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106711603A true CN106711603A (en) | 2017-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710092638.6A Pending CN106711603A (en) | 2017-02-21 | 2017-02-21 | Single-cavity three-mode filter slot antenna based on waveguide feed |
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| Country | Link |
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| CN (1) | CN106711603A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768825A (en) * | 2017-10-24 | 2018-03-06 | 华南理工大学 | A kind of cross circular polarisation slot antenna |
| 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 |
| WO2019200829A1 (en) * | 2018-04-18 | 2019-10-24 | 深圳大学 | Three-dimensional multi-directional controllable radiator, and antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544649A (en) * | 2012-01-04 | 2012-07-04 | 西安电子科技大学 | One-cavity three-mode filter |
| CN104752795A (en) * | 2015-03-24 | 2015-07-01 | 华南理工大学 | High-selectivity three-die single-cavity band-pass filter |
| CN104885291A (en) * | 2012-10-25 | 2015-09-02 | 梅萨普莱克斯私人有限公司 | Antenna and filter structures |
| CN105720331A (en) * | 2016-03-23 | 2016-06-29 | 华南理工大学 | Single-cavity three-mode band-pass duplexer based on microstrip feed gap coupling |
| CN206564332U (en) * | 2017-02-21 | 2017-10-17 | 华南理工大学 | The mould of single-chamber three filtering slot antenna based on waveguide feed |
-
2017
- 2017-02-21 CN CN201710092638.6A patent/CN106711603A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544649A (en) * | 2012-01-04 | 2012-07-04 | 西安电子科技大学 | One-cavity three-mode filter |
| CN104885291A (en) * | 2012-10-25 | 2015-09-02 | 梅萨普莱克斯私人有限公司 | Antenna and filter structures |
| CN104752795A (en) * | 2015-03-24 | 2015-07-01 | 华南理工大学 | High-selectivity three-die single-cavity band-pass filter |
| CN105720331A (en) * | 2016-03-23 | 2016-06-29 | 华南理工大学 | Single-cavity three-mode band-pass duplexer based on microstrip feed gap coupling |
| CN206564332U (en) * | 2017-02-21 | 2017-10-17 | 华南理工大学 | The mould of single-chamber three filtering slot antenna based on waveguide feed |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768825A (en) * | 2017-10-24 | 2018-03-06 | 华南理工大学 | A kind of cross circular polarisation slot antenna |
| 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 |
| CN110323574B (en) * | 2018-03-30 | 2021-03-30 | 北京木牛领航科技有限公司 | Waveguide antenna structure and method |
| WO2019200829A1 (en) * | 2018-04-18 | 2019-10-24 | 深圳大学 | Three-dimensional multi-directional controllable radiator, and antenna |
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