CN106785461B - A kind of adjustable micro-strip paster antenna of frequency - Google Patents
A kind of adjustable micro-strip paster antenna of frequency Download PDFInfo
- Publication number
- CN106785461B CN106785461B CN201611203118.XA CN201611203118A CN106785461B CN 106785461 B CN106785461 B CN 106785461B CN 201611203118 A CN201611203118 A CN 201611203118A CN 106785461 B CN106785461 B CN 106785461B
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- patch
- aperture
- frequency
- strip paster
- antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
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Abstract
The invention belongs to microwave device fields, more particularly to a kind of adjustable micro-strip paster antenna of frequency, including radiation patch, dielectric-slab, feed port and excitation source port, the radiation patch is set to dielectric-slab upper surface, the excitation source port is connected with feed port to be motivated, and the identical patch aperture of even number size is symmetrically arranged on the opposite side of the radiation patch, and the patch aperture is arranged in array, array center is located on the middle line of corresponding opposite side, and each patch aperture is in rectangle.The present invention in radiation patch by way of opening up patch aperture, the beamwidth of antenna can be broadened, meanwhile, when processing micro-strip paster antenna, by test, there are when frequency shift (FS), radiation patch can be cut out along patch aperture is convenient, effectively correct the frequency shift (FS) of micro-strip paster antenna.
Description
Technical field
The invention belongs to microwave device fields, and in particular to a kind of adjustable micro-strip paster antenna of frequency.
Background technique
With the development of science and technology, device miniaturization becomes the most important technical essential in practical study application, micro-strip
Antenna can work in 100MHz -100GHz, allow it to be widely used in using dielectric-slab as the simple advantage of radiation unit, design
Modern microwave receive-transmit system field is indispensable component part in current microwave device.Microstrip antenna has the advantage that
1, small in size, light-weight, low section can be conformal with carrier such as aircraft, mobile communication terminal；2, manufacturing cost is low, is easy to criticize
Amount production can realize linear polarization and circular polarisation with simple feed；3, scattering section is small, is easy to make double frequency, dual polarized antenna；
4, can be easily integrated with active device and microwave circuit, feeder line and matching network can manufacture together with antenna structure.But
Be it there is also practical application defects, wherein most important is exactly the theory of the object test result and software emulation that process
As a result there can be certain error；The reason of leading to these errors are as follows: the design of microstrip antenna be using plate as radiation unit,
For usually our plates for using in practice due to processing, the production of same model different batches can all lead to plate
Itself dielectric constant, loss tangent, thickness etc. change, and these indexs of plate are arranged in we when software emulation
It is all to be arranged according to ideal situation, which results in the notional results of the object test result and software emulation that process
There can be certain error.In these errors, most fatal is the offset of frequency, patch in the size and dielectric-slab of frequency
Length and width have a relationship, and the offset of frequency is divided into higher and relatively low, according to microwave theory, if relatively low, need to only reduce size
, the antenna frequencies can be can be achieved with to height by prescinding the length and width of microstrip antenna with physical method equal proportion at this time
Frequency changes；But if the antenna frequencies processed are higher, in order to reduce frequency, it would be desirable to increased in size, and process
The length of antenna patch according to the dimensioned of emulation, cannot increase, this will directly affect the process of Practical Project, need
Processing is redesigned, causes very big puzzlement to practical study application.
Summary of the invention
It is an object of the invention to propose a kind of adjustable microband paste day of frequency for defect existing for background technique
Line；The frequency adjusting that the antenna convenient can realize micro-strip paster antenna, meanwhile, it is capable to expand the beamwidth of antenna, advanced optimizes
Antenna performance.To realize the purpose, the technical solution adopted by the present invention are as follows:
A kind of adjustable micro-strip paster antenna of frequency, including radiation patch 1, dielectric-slab 3, feed port 4 and excitation source
Mouth 5, the radiation patch 1 is set to 3 upper surface of dielectric-slab, and the excitation source port 5 is connected with feed port 4 to be motivated,
It is characterized in that, being symmetrically arranged with the identical patch aperture 2 of even number size, the patch on the opposite side of the radiation patch 1
Aperture 2 is arranged in array, and array center is located on the middle line of corresponding opposite side, and each patch aperture is in rectangle.
Further, the size of the patch aperture are as follows: a length of 0.1~0.5mm, width are 0.1~0.5mm.
Further, when the adjustable micro-strip paster antenna of the frequency reduces antenna frequencies, along the side of the patch aperture
Cut out the radiation patch.
Further, the feed port 4 is fed using metal buttress shaft, by motivating the excitation of source port 5, is pasted in radiation
Piece is to space radiation field.
Further, the excitation source port 5 is located at 3 lower surface of dielectric-slab, and external 50 ohm coaxial is motivated.
The beneficial effects of the present invention are: the present invention provides a kind of adjustable micro-strip paster antenna of frequency, in radiation patch
Patch aperture is opened up, the small-sized of aperture will not influence standing wave；The core purpose for opening up patch aperture is: when practical life
Produce processing micro-strip paster antenna by test there are frequencies toward high frequency offset when, by cutting out radiation patch along patch aperture is convenient
Piece, to increase the active path of electric current process, so that antenna frequencies have achieved the purpose that toward low frequency offset to frequency correction；
In addition, opening up for patch aperture can further broaden the beamwidth of antenna.
Detailed description of the invention
Fig. 1 is the positive structural schematic diagram of micro-strip paster antenna of the present invention；
Fig. 2 is the structural schematic diagram at the micro-strip paster antenna back side of the present invention；
Fig. 3 micro-strip paster antenna patch aperture practical adjustments schematic diagram of the present invention；
Fig. 4 micro-strip paster antenna of the present invention emulates S11 result schematic diagram；
Actual test S11 result schematic diagram before Fig. 5 micro-strip paster antenna material object of the present invention is not debugged；
Actual test S11 result schematic diagram after Fig. 6 micro-strip paster antenna material object debugging of the present invention；
Wherein, 1 be radiation patch, 2 be patch aperture, 3 be dielectric-slab, 4 be feed port, 5 be excitation source port.
Specific embodiment
Invention is further explained with reference to the accompanying drawings and examples.
The present embodiment provides a kind of adjustable micro-strip paster antennas of frequency, and structure is as shown in Figure 1, 2, including radiation patch 1,
Dielectric-slab 3, feed port 4 and excitation source port 5, the radiation patch 1 are set to 3 upper surface of dielectric-slab, the driving source
Port 5 is connected with feed port 4 is motivated, which is characterized in that is symmetrically arranged with even number on the opposite side of the radiation patch 1
The identical patch aperture 2 of size, the patch aperture 2 are arranged in array, and array center is located on the middle line of corresponding opposite side, each
Patch aperture is in rectangle.
Wherein, the radiation patch 1 and patch aperture are all made of printed circuit technique production；The dielectric-slab 3 is selected
The RF-35 of dielectric constant 3.5, with a thickness of the plate of 125mil；The feed port 4 is thin using the metal of radius 0.45mm
Column feed；External 50 ohm coaxial of the flat excitation source port 5, is motivated.
Further, the long l of basic size of the radiation patch in the micro-strip paster antenna composite module of the high-gain and
Wide w can carry out primary Calculation according to following calculation formula:
Wherein, l refers to the length of patch, and w refers to that the width of patch, c refer to that the light velocity, f refer to centre frequency,
ε refers to the dielectric constant of dielectric-slab.The emulation rule of microwave device is all mostly that size is bigger, and frequency is lower, and size is smaller,
Frequency is higher, carries out tuning parameter by software emulation after primary Calculation and obtains final optimization pass parameter are as follows: l=27.93mm, w
=27.25mm, the size in hole are as follows: a=0.3mm, b=0.15mm.
From working principle, after antenna processes, if size only need to be reduced if frequency is relatively low,
It can be achieved with the antenna frequencies by prescinding microstrip antenna length and width with physical method equal proportion and change to high frequency；But
If the antenna frequencies processed are higher, in order to reduce frequency, it would be desirable to increase frequency size, and making antenna patch
Length according to the dimensioned of emulation, cannot increase.And micro-strip paster antenna passes through in radiation patch in the present invention
Patch aperture can convenient reduction antenna frequencies, as shown in figure 3, its realize process specifically:
In the present embodiment, each edge is respectively provided with 4 patch apertures, and each orifice size is identical, is located at center, is in pair
Claim distribution；Aperture length and width as shown in the figure are respectively a and b, and the distance of aperture to edge is c；For on the left of radiation fin, along upper left
The first patch aperture in side cuts out radiation patch to antenna edge is convenient, then increased effective length is on the left of radiation patch at this time
For c+b+a+b+c=2 (b+c)+a；Effectively increase the effective side length of radiation patch, then can be achieved frequency toward it is low partially；And so on, it can
It is further cut out, so that antenna frequencies are further turned down, until reaching expected.It should be strongly noted that antenna size
Change mm grades, frequency will change very much, therefore the size of patch aperture cannot be very big, need to be closed according to actual emulation situation
Reason setting.
Above-mentioned micro-strip paster antenna is accordingly emulated, as shown in Fig. 4 the emulation standing-wave ratio of micro-strip paster antenna
Schematic diagram can be seen from the chart that frequency range is 2.4-2.52GHz, centre frequency 2.46GHz, bandwidth 80MHz, S11
Lower than -10dB；As shown in Fig. 5 the S11 vector network analyzer before the micro-strip paster antenna processed is not debugged is surveyed
Test result schematic diagram can be seen from the chart that frequency range is 2.41-2.55GHz, centre frequency 2.48GHz, and bandwidth is
140MHz, S11 are lower than -10dB；Since the factors such as the inhomogeneity of plate property and processing cause actual test result to be compared
In the higher 20MHz of Fig. 4 result simulation centre frequency, bandwidth increases 60MHz, the increase of bandwidth in most cases for
Microstrip antenna influences less, but the offset of centre frequency will have a great impact inside practical application.Through the invention
Debugging aperture approach the antenna of design is debugged, then tested again using vector network analyzer such as Fig. 6
It is shown, it can be seen from the chart that frequency range is 2.38-2.51GHz, centre frequency 2.445GHz, bandwidth 130MHz, S11
Lower than -10dB, by after debugging we have found that centre frequency compares the test result of Fig. 5 toward low frequency offset, sufficiently really
Illustrate exploitativeness and reliability of the invention.
The above description is merely a specific embodiment, any feature disclosed in this specification, except non-specifically
Narration, can be replaced by other alternative features that are equivalent or have similar purpose；Disclosed all features or all sides
Method or in the process the step of, other than mutually exclusive feature and/or step, can be combined in any way.
Claims (4)
1. a kind of adjustable micro-strip paster antenna of frequency, including radiation patch (1), dielectric-slab (3), feed port (4) and excitation
Source port (5), the radiation patch (1) are set to dielectric-slab (3) upper surface, the excitation source port (5) and feed port (4)
It is connected and is motivated, which is characterized in that is symmetrically arranged with the identical patch of even number size on the opposite side of the radiation patch (1)
Aperture (2), the patch aperture (2) are arranged in array, and array center is located on the middle line of corresponding opposite side, and each patch aperture is equal
In rectangle；When the adjustable micro-strip paster antenna of the frequency reduces antenna frequencies, cut out along the side of the patch aperture (2) described
Radiation patch (1).
2. by the adjustable micro-strip paster antenna of frequency described in claim 1, which is characterized in that the size of the patch aperture are as follows: long
It is 0.1~0.5mm for 0.1~0.5mm, width.
3. by the adjustable micro-strip paster antenna of frequency described in claim 1, which is characterized in that the feed port (4) uses metal
Buttress shaft feed, by motivating the excitation of source port (5), in radiation patch to space radiation field.
4. by the adjustable micro-strip paster antenna of frequency described in claim 1, which is characterized in that the excitation source port (5), which is located at, to be situated between
Scutum (3) lower surface, external 50 ohm coaxial are motivated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203118.XA CN106785461B (en) | 2016-12-23 | 2016-12-23 | A kind of adjustable micro-strip paster antenna of frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203118.XA CN106785461B (en) | 2016-12-23 | 2016-12-23 | A kind of adjustable micro-strip paster antenna of frequency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106785461A CN106785461A (en) | 2017-05-31 |
| CN106785461B true CN106785461B (en) | 2019-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611203118.XA Expired - Fee Related CN106785461B (en) | 2016-12-23 | 2016-12-23 | A kind of adjustable micro-strip paster antenna of frequency |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203398267U (en) * | 2013-08-22 | 2014-01-15 | 中国计量学院 | A microstrip antenna in a shape of a Chinese character of jia |
| CN204118265U (en) * | 2014-03-31 | 2015-01-21 | 北京兴科迪科技有限公司 | A kind of GPS and Big Dipper bimodulus ceramic paster antenna and the vehicle of this antenna is installed |
| CN105071032A (en) * | 2015-08-25 | 2015-11-18 | 中国航空无线电电子研究所 | Miniaturization broadband microstrip antenna |
-
2016
- 2016-12-23 CN CN201611203118.XA patent/CN106785461B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203398267U (en) * | 2013-08-22 | 2014-01-15 | 中国计量学院 | A microstrip antenna in a shape of a Chinese character of jia |
| CN204118265U (en) * | 2014-03-31 | 2015-01-21 | 北京兴科迪科技有限公司 | A kind of GPS and Big Dipper bimodulus ceramic paster antenna and the vehicle of this antenna is installed |
| CN105071032A (en) * | 2015-08-25 | 2015-11-18 | 中国航空无线电电子研究所 | Miniaturization broadband microstrip antenna |
Non-Patent Citations (1)
| Title |
|---|
| 《实现小型化微带天线的几种设计方法》;彭程等;《2013年全国微波毫米波会议论文集》;20130521;598-601 * |
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| CN106785461A (en) | 2017-05-31 |
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Granted publication date: 20190514 Termination date: 20211223 |