CN109149083A - A kind of low section dielectric resonator antenna and wireless communication system - Google Patents
A kind of low section dielectric resonator antenna and wireless communication system Download PDFInfo
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- CN109149083A CN109149083A CN201810844830.0A CN201810844830A CN109149083A CN 109149083 A CN109149083 A CN 109149083A CN 201810844830 A CN201810844830 A CN 201810844830A CN 109149083 A CN109149083 A CN 109149083A
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- dielectric resonator
- medium device
- low section
- antenna
- radiation medium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
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Abstract
The invention belongs to antenna technical fields, a kind of low section dielectric resonator antenna is disclosed, the circular media plate under rectangular radiation medium device, grounding plate is placed including rectangle grounding plate, right above the grounding plate, across grounding plate center and is deep into the coaxial probe of radiation medium device and four short circuit metallics substantially symmetrical about its central axis being distributed in inside radiation medium device are slightly followed closely.The present invention realizes dielectric resonator antenna low cost, the characteristic of low section, is fed using probe to radiation medium device, adjusts metal and slightly follows closely deflected length D, so that Antenna Impedance Matching reaches broadband character；Low section characteristic is realized, the volume of antenna is effectively reduced.
Description
Technical field
The invention belongs to antenna technical field more particularly to a kind of low section dielectric resonator antennas and wireless communication system.
Background technique
Currently, the prior art commonly used in the trade is such that due to having miniaturization, high radiation efficiency, low-loss and easy
In feed the features such as, dielectric resonator antenna has received widespread attention.With the development of Modern Communication System, to antenna miniaturization
Demand increasingly increases.Therefore, there is practical significance to the research of low section dielectric resonator antenna.Currently, humorous to medium both at home and abroad
The method that vibration antenna reduces section mainly has the dielectric resonator using high dielectric constant, using blending agent layer structure and change
Radiation medium device physical size ratio.Such as in " IEEE TRANSATIONS ON ANTENNAS AND PROPAGATION " 1994
Year paper " the Low profile dielectric resonator antenna using a very high of volume 30
In permittivity material ", the dielectric resonator of high dielectric constant is used to realize the low section characteristic of antenna, day
The section of line is the low section characteristic of 0.026 λ, and λ indicates the centre frequency wave of broadband low section dielectric resonator antenna working frequency range
It is long, but in this design, the bandwidth of antenna is only 3%.In " IEEE ANTENNAS AND WIRELESS
PROPAGATION LETTERS " 2015 years paper " A Low-Profile and High-Permittivity of volume 14
In Dielectric Resonator Antenna With Enhanced Bandwidth ", using two pieces of high dielectric constants
Radiation medium device is placed on above low-k radiator, realizes the low section and width characteristic of antenna.In " IEEE
TRANSATIONS ON ANTENNAS AND PROPAGATION " 1996 years paper " A Low-Profile of volume 44
In Rectangular Dielectric Resonator Antenna ", Rectangular Enclosure with Participating Media radiator length and height ratio are 6, into
And antenna reaches low section characteristic.Although above-mentioned antenna reaches low section characteristic, but the manufacturing cost of antenna is all higher, hinders
Application of the antenna in certain equipment.Therefore, designing the simple low profile antenna of structure is antenna technical field urgent need to resolve
The problem of, there is biggish Practical significance.
In conclusion problem of the existing technology is:
1 traditional antenna has very high loss in high band due to big in low-frequency range geometric dimension, thus in the application
It is very restricted.
2 low section dielectric resonator antennas are to increase available bandwidth, often using complicated feed structure or using complicated
Geometry, cost is excessively high, can not be widely applied.
Solve the difficulty and meaning of above-mentioned technical problem:
Existing dielectric resonator antenna is to realize low section characteristic, often due to complicated design is added significantly to cost.This
Invention is by the redesign to rectangular radiation medium device, and in inside, four metals of load substantially symmetrical about its central axis are slightly followed closely, and changes metal
Deviation post is slightly followed closely, dielectric resonator antenna resonance frequency is adjusted, to achieve the effect that increase the beamwidth of antenna.It reduces with low
The cost of the antenna of section characteristic dielectric resonance remains the excellent performance of dielectric resonator antenna.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of low section dielectric resonator antenna,
The invention is realized in this way a kind of low section dielectric resonator antenna, which includes square
Shape grounding plate is set to right above grounding plate and places rectangular radiation medium device, passes through grounding plate center and go deep into
It is slightly followed closely to the coaxial probe of radiation medium device and four short circuit metallics substantially symmetrical about its central axis being distributed in inside radiation medium device.
Further, for rectangular radiation medium device having a size of 38mm × 38mm × 9mm, the size of rectangular radiation medium device can root
Size is chosen according to the working frequency of oneself, this example realizes the characteristic of low section using the size, and it is humorous that size influences antenna
Vibration point.
Further, the grounding plate is coincided using center and rectangular radiation medium device centre of surface, having a size of
The square-shaped metal floor of 100mm × 100mm, the size on floor influence the performance of directional diagram, and the selection of board size herein is suitable
In be 100mm, close to actual application environment.
Further, the coaxial probe go deep into dielectric resonator length be less than its height, probe length 5.4mm, directly
Diameter is 1.3mm, presents size of the diameter due to the coaxial feeder used in engineering of needle, uses 1.3mm, presents needle effect length
Feed in energy analysis size influences Impedance Peak size, 5.4mm is chosen after overregulating.
Further, the short circuit metallic is slightly followed closely in distribution substantially symmetrical about its central axis, metal slightly staple height and radiation medium device height
It is identical, it is highly 9mm, diameter 1mm, metal is slightly followed closely in perception, and the diameter slightly followed closely is bigger, more in perception, takes diameter 1mm just
In the resonance point for adjusting antenna, on an equal basis it is highly 9mm with dielectric radiator, reduces influence of its dependent variable to antenna.
Another object of the present invention is to provide a kind of wireless communication system using above-mentioned low section dielectric resonator antenna.
In conclusion advantages of the present invention and good effect are as follows: the present invention the radiation medium device use cross section for
The rectangular radiation medium device of square, four metal columns, which are centrosymmetric, to be placed in rectangular radiation medium device.The present invention uses
Probe is fed to radiation medium device.It adjusts metal and slightly follows closely deflected length D, so that Antenna Impedance Matching reaches broadband character.
For the existing general section of dielectric resonator antenna all in 0.16 λ or more, this antenna realizes the low section characteristic of 0.109 λ, and (λ is indicated
The center frequency wavelength of broadband low section dielectric resonator antenna working frequency range).The dielectric resonator antenna that the present invention designs realizes
Low section characteristic effectively reduces the volume of antenna.
Detailed description of the invention
Fig. 1 is the structure chart of antenna provided in an embodiment of the present invention；
Fig. 2 is the top view of antenna provided in an embodiment of the present invention；
Fig. 3 is the A-A ' sectional view of antenna provided in an embodiment of the present invention；
Fig. 4 is the return loss plot figure of antenna provided in an embodiment of the present invention；
Fig. 5 is the face E and the H surface radiation directional diagram of antenna provided in an embodiment of the present invention；
In figure: 1, rectangle grounding plate；2, rectangular radiation medium device；3, coaxial probe；4, metal is slightly followed closely.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Referring to Fig.1, low section dielectric resonator antenna of the present invention includes rectangle grounding plate 1, is being set to grounding plate 1 just
Top places rectangular radiation medium device 2, across 1 center of grounding plate and is deep into the coaxial probe 3 and four of radiation medium device
The root short circuit metallic substantially symmetrical about its central axis being distributed in inside radiation medium device slightly follows closely 4.It is characterized by: the grounding plate 1, is adopted
It is coincided with center and 2 centre of surface of rectangular radiation medium device.
The metal-loaded with reference to described in Fig. 2 is slightly followed closely 4 and is axisymmetricly divided with central coaxial feedback needle 3 apart from for D, D 6.5mm
Cloth；
With reference to Fig. 3, the short circuit metallic slightly follows closely 4 in distribution substantially symmetrical about its central axis, and metal slightly follows closely 4 height and radiation medium device 2
It is highly identical；The length that the coaxial probe 3 gos deep into dielectric resonator is less than Rectangular Enclosure with Participating Media device height；In this example, rectangle is connect
The width of ground metal plate 1 is 100mm；Rectangular radiation medium device 2 is having a size of 38mm × 38mm × 9mm, medium device dielectric constant
16；4 radius of coaxial probe is 0.65mm, and the length for going deep into dielectric radiator 2 is 5.4mm；The metal slightly follows closely 4 radiuses
For 0.5mm, highly consistent with dielectric radiator height is 9mm.
It is the impedance bandwidth software emulation of this example as a result, from fig. 4, it can be seen that antenna exists in frequency band with reference to Fig. 4, Fig. 4
Two resonance points, antenna impedance bandwidth range are 3.37GHz-3.92GHz, relative bandwidth 15.1%.
With reference to Fig. 5, Fig. 5 is the face E and H surface radiation directional diagram of two resonance points of this example antenna, wherein Fig. 5 (a), (b)
Respectively indicate resonance dot frequency be 3.47GHz and 3.82GHz when the face E and the gain of H surface antenna with angle change function curve,
In two viewing planes of above-mentioned two frequency points, antenna gain patterns are distributed relatively stable, stable working performance.
In conclusion low section dielectric resonator antenna proposed by the present invention can be based on better simply structure, 0.109 λ is realized
Low section characteristic, λ indicate broadband low section dielectric resonator antenna working frequency range center frequency wavelength.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of low section dielectric resonator antenna, which is characterized in that the low section dielectric resonator antenna includes rectangle ground connection gold
Belong to plate, rectangular radiation medium device, circular media plate, coaxial probe；
Rectangular radiation medium device is placed right above grounding plate, the circular media plate under grounding plate, passes through grounded metal
Plate center and be deep into radiation medium device coaxial probe and four short circuits substantially symmetrical about its central axis being distributed in inside radiation medium device
Metal is slightly followed closely.
2. low section dielectric resonator antenna as described in claim 1, which is characterized in that the rectangular radiation medium device having a size of
38mm×38mm×9mm。
3. low section dielectric resonator antenna as described in claim 1, which is characterized in that the grounding plate, using center
It coincides with rectangular radiation medium device centre of surface, the square-shaped metal floor having a size of 100mm × 100mm.
4. low section dielectric resonator antenna as described in claim 1, which is characterized in that the coaxial probe gos deep into dielectric resonance
The length of device is less than its height, probe length 5.4mm, diameter 1.3mm.
5. low section dielectric resonator antenna as described in claim 1, which is characterized in that the short circuit metallic is slightly followed closely in central axis
Symmetrical, metal slightly staple height is identical as radiation medium device height, is highly 9mm, diameter 1mm.
6. low section dielectric resonator antenna as described in claim 1, which is characterized in that the short circuit metallic is slightly followed closely in central axis
Symmetrical, metal slightly staple height is identical as radiation medium device height.
7. a kind of wireless communication system using the low section dielectric resonator antenna as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810844830.0A CN109149083B (en) | 2018-07-27 | 2018-07-27 | Low-profile dielectric resonant antenna and wireless communication system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810844830.0A CN109149083B (en) | 2018-07-27 | 2018-07-27 | Low-profile dielectric resonant antenna and wireless communication system |
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| Publication Number | Publication Date |
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| CN109149083A true CN109149083A (en) | 2019-01-04 |
| CN109149083B CN109149083B (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810844830.0A Active CN109149083B (en) | 2018-07-27 | 2018-07-27 | Low-profile dielectric resonant antenna and wireless communication system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323554A (en) * | 2019-07-04 | 2019-10-11 | 西安电子科技大学 | Broad beam medium resonator antenna based on embedded metal column |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694263A (en) * | 2011-03-25 | 2012-09-26 | 香港城市大学 | Elliptically or circularly polarized dielectric block antenna |
-
2018
- 2018-07-27 CN CN201810844830.0A patent/CN109149083B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694263A (en) * | 2011-03-25 | 2012-09-26 | 香港城市大学 | Elliptically or circularly polarized dielectric block antenna |
Non-Patent Citations (2)
| Title |
|---|
| JINPIL TAK ET-AL: "《Design of a circular-ring patch on-body antenna with shorting vias for WBAN application》", 《2013 ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS》 * |
| PRAGATI PATEL ET-AL: "《Compact wideband perforated rectangular dielectric resonator antenna》", 《2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION &USNC/URSI NATIONAL RADIO SCIENCE MEETING》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323554A (en) * | 2019-07-04 | 2019-10-11 | 西安电子科技大学 | Broad beam medium resonator antenna based on embedded metal column |
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| CN109149083B (en) | 2020-06-30 |
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