CN106887681A - A kind of spacecraft module internal electric field measures broad-band antenna - Google Patents
A kind of spacecraft module internal electric field measures broad-band antenna Download PDFInfo
- Publication number
- CN106887681A CN106887681A CN201710083695.8A CN201710083695A CN106887681A CN 106887681 A CN106887681 A CN 106887681A CN 201710083695 A CN201710083695 A CN 201710083695A CN 106887681 A CN106887681 A CN 106887681A
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- CN
- China
- Prior art keywords
- rectangle
- electric field
- substrate
- band antenna
- internal electric
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0878—Sensors; antennas; probes; detectors
-
- 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
- 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
Abstract
The invention discloses a kind of spacecraft module internal electric field measurement broad-band antenna, to replace traditional commercial electric field probe, antenna has sourceless characteristic, realize broadband, highly sensitive frequency domain electric field measurement, feed connection can be connected with spectrum analysis equipment, weak electric field environment in spacecraft module of the measurement less than 0.01V/m.In addition, compact conformation of the present invention and light, can use in the narrow and small cabin of spacecraft, any frequency, the Electric Field Distribution and size of any position in cabin can be obtained, substantially meet that spacecraft wireless system is mainly launched and receiving point frequency is required.
Description
Technical field
The present invention relates to a kind of spacecraft module internal electric field measurement broad-band antenna, belong to Electromagnetic Field and Microwave Technology field.
Background technology
The electromagnetic environment adaptability of spacecraft is its reliability design and electromagnetic Compatibility Design must take into consideration important asks
Topic, with raising of the spacecraft in function and performance, the increase of product integrated level, dual-mode antenna is close in limited space
Collection, makes the electromagnetic environment inside spacecraft cabin increasingly sophisticated.In order to obtain the Electric Field Distribution and magnitude situation inside nacelle, lead to
Often arrange that commercial electric field probe is measured inside nacelle, but there is certain limitation, one in existing commercial electric field probe
It is that its sensitivity is relatively low, minimum response amplitude is about 5V/m, it is impossible to which the smaller signal of measurement, two is that it is output as all surveys
Measure the comprehensive electric-field intensity of frequency range, it is impossible to know the Electric Field Distribution and size at wherein any frequency.
The content of the invention
Technology solve problem of the invention：To overcome the deficiencies in the prior art, there is provided a kind of spacecraft module internal electric field measurement
Broad-band antenna, to realize that, to broadband, highly sensitive frequency domain electric field measurement, small-signal, the opposing party on the one hand can be measured
Face can obtain any frequency, the Electric Field Distribution and size of any position in cabin.
Technical solution of the invention：
A kind of spacecraft module internal electric field measures broad-band antenna, including substrate, coating, and substrate relative dielectric constant is 4~
4.6, thickness is 1.2~1.8mm, and the short side center position of substrate is provided with feed connection,
Substrate is rectangular configuration, and coating is completely covered in the one side of substrate, and integration is etched in the center of coating
Double-T gap, double-T gap and feed connection be located on the axis of substrate short side, wherein larger inverted T-shaped gap produce it is low
Frequency effect, working frequency range covers 2~6GHz, and less positive T-shaped gap produces high-frequency effects, and working frequency range covers 6~20GHz,
Larger inverted T-shaped gap and less positive T-shaped gap collective effect produce broadband effect, and working frequency range covers 2~20GHz；
A rectangle D is coated on the short side axis of substrate another side as antenna feeding microstrip line, mono- short side of rectangle D
It is connected with feed connection, rectangle D another short side is connected with rectangle E, rectangle E is located on the short side axis of substrate.
Double-T gap concrete structure is：Rectangle A is etched in the center of substrates coatings, the short sides of rectangle A two are away from substrate two
The distance on side long is 1.5~2.5mm, and rectangle A sides long are long 2 times of short side, symmetrical to carve at the axial location on rectangle A sides long
Two rectangle B of erosion, rectangle B sides long are long 2 times of short side, rectangle A it is long while for rectangle B is long while 4~5 times, on rectangle B sides long
Axial location and near the side of feed connection, etches a rectangle C, and the length of side of rectangle C is consistent with rectangle B short sides.
The center of rectangle E overlaps with the center of rectangle A, the length of side of rectangle E for the rectangle B length of sides long 1.2~
1.5 times.
Rectangle E improves the impedance matching property of antenna in 2~20GHz band limits, antenna impedance is controlled in 47 Ω
Between~53 Ω.
Feed connection can be connected with spectrum analysis equipment, weak electric field ring in spacecraft module of the measurement less than 0.01V/m
Border, knows wherein any frequency, Electric Field Distribution and size at position.
The material of substrate is the one kind in epoxy resin, polytetrafluoroethylene (PTFE), glass fabric.
Coating material is metal material, is the one kind in tin, copper, silver.
Etching and the accuracy rating of coating are ± 0.03mm.
Coating layer thickness is 35~70 microns.
In 2~20GHz band limits, aerial voltage standing-wave ratio is less than 2.5.
The present invention has the advantages that compared with prior art：
(1) present invention obtains the problem that sensitivity is low, frequency cannot be differentiated for spacecraft module internal electric field environment, improves and passes
Steerage internal electric field measuring method, designs a kind of antenna suitable for the measurement of spacecraft module internal electric field, to replace traditional commercialization electricity
Field probe, inventive antenna has sourceless characteristic, realizes broadband, highly sensitive frequency domain electric field measurement, and feed connection can
It is connected with spectrum analysis equipment, weak electric field environment in spacecraft module of the measurement less than 0.01V/m；
(2) broad-band antenna size of the present invention is less than 45*30*1.6mm, and compact conformation and light can be narrow and small in spacecraft
Used in cabin, any frequency, the Electric Field Distribution and size of any position in cabin can be obtained, substantially meet spacecraft wireless system
Main transmitting and receiving point frequency are required.
Brief description of the drawings
Fig. 1 is the face structural representation of broad-band antenna of the present invention；
Fig. 2 is broad-band antenna another side structural representation of the present invention；
Fig. 3 is that broad-band antenna surveys voltage standing wave ratio (VSWR) figure.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of spacecraft module internal electric field measures broad-band antenna, including substrate, coating, and substrate relative dielectric constant is 4~
4.6, thickness is 1.2~1.8mm, and the short side center position of substrate is provided with feed connection,
Substrate is rectangular configuration, and coating is completely covered in the one side of substrate, and integration is etched in the center of coating
Double-T gap, as shown in figure 1, double-T gap and feed connection are located on the axis of substrate short side, wherein larger inverted T-shaped
Gap produces low-frequency effects, and working frequency range covers 2~6GHz, and less positive T-shaped gap produces high-frequency effects, working frequency range covering
6~20GHz, larger inverted T-shaped gap and less positive T-shaped gap collective effect generation broadband effect, working frequency range covering 2~
20GHz；
A rectangle D is coated on the short side axis of substrate another side as antenna feeding microstrip line, as shown in Fig. 2 square
Mono- short side of shape D is connected with feed connection, and rectangle D another short side is connected with rectangle E, and rectangle E is located at the short side axis of substrate
On.
Feed connection can be connected with spectrum analysis equipment, weak electric field ring in spacecraft module of the measurement less than 0.01V/m
Border, knows wherein any frequency, Electric Field Distribution and size at position.
In spacecraft module internal electric field environment measurement, broad-band antenna, day line back end can be disposed about by key equipment in cabin
By connecting frequency spectrograph after radio-frequency cable crossing cabin, the electric-field intensity value of corresponding frequency at test position can be obtained.
The material of substrate is the one kind in epoxy resin, polytetrafluoroethylene (PTFE), glass fabric.Coating material is metal material
Material, is the one kind in tin, copper, silver.Etching and the accuracy rating of coating are ± 0.03mm.Coating layer thickness is 35~70 microns.2
In~20GHz band limits, aerial voltage standing-wave ratio is less than 2.5.
Double-T gap concrete structure etches rectangle A referring to Fig. 1, Fig. 2 in the center of substrates coatings, and rectangle A two is short
The distance on the side long of back gauge substrate two is 1.5~2.5mm, and rectangle A sides long are long 2 times of short side, in the axial location on rectangle A sides long
Place, symmetrical two rectangle B of etching, rectangle B sides long are long 2 times of short side, rectangle A it is long while for rectangle B is long while 4~5 times, in square
The axial location on shape B sides long and near the side of feed connection, etches a rectangle C, the length of side and the rectangle B short sides one of rectangle C
Cause.The center of rectangle E overlaps with the center of rectangle A, and the length of side of rectangle E is 1.2~1.5 times of the rectangle B length of sides long.
Rectangle E improves the impedance matching property of antenna in 2~20GHz band limits, make antenna impedance control 47 Ω~53 Ω it
Between.
Fig. 3 describes broad-band antenna actual measurement voltage standing wave ratio curve of the present invention, it can be seen that in 2~20GHz band limits
Interior, aerial voltage standing-wave ratio is less than 2.5, meets the basic demand to antenna performance in engineering, realizes the broadband of measurement antenna
Characteristic.
The present invention is tested by multiple space flight model, is examined at different bay section positions, is effectively obtained in cabin
The electric field environment characteristic distributions and value size of various location, measurement sensitivity are better than 0.01V/m.
The present invention obtains the problem that sensitivity is low, frequency cannot be differentiated for spacecraft module internal electric field environment, improves tradition
Cabin internal electric field measuring method, designs a kind of antenna suitable for the measurement of spacecraft module internal electric field, to replace traditional commercial electric field
Probe, antenna has sourceless characteristic, realizes broadband, highly sensitive frequency domain electric field measurement.
The content not being described in detail in description of the invention belongs to the known technology of professional and technical personnel in the field.
Claims (10)
1. a kind of spacecraft module internal electric field measures broad-band antenna, it is characterised in that including substrate, coating, substrate is normal with respect to dielectric
Number is 4~4.6, and thickness is 1.2~1.8mm, and the short side center position of substrate is provided with feed connection,
Substrate is rectangular configuration, and coating is completely covered in the one side of substrate, and double T of integration are etched in the center of coating
Shape gap, double-T gap and feed connection are located on the axis of substrate short side, wherein larger inverted T-shaped gap produces low frequency effect
Should, working frequency range covers 2~6GHz, and less positive T-shaped gap produces high-frequency effects, and working frequency range covers 6~20GHz, larger
Inverted T-shaped gap and less positive T-shaped gap collective effect produce broadband effect, working frequency range cover 2~20GHz；
A rectangle D is coated on the short side axis of substrate another side as antenna feeding microstrip line, mono- short side of rectangle D and feedback
Electric connection is connected, and rectangle D another short side is connected with rectangle E, and rectangle E is on the short side axis of substrate.
2. a kind of spacecraft module internal electric field as claimed in claim 1 measures broad-band antenna, it is characterised in that double-T gap has
Body structure is：Substrates coatings center etch rectangle A, distance of the short sides of rectangle A two away from the side long of substrate two be 1.5~
2.5mm, rectangle A side long are long 2 times of short side, at the axial location on rectangle A sides long, symmetrical etching two rectangle B, rectangle B
Side long is long 2 times of short side, rectangle A it is long while for rectangle B is long while 4~5 times, rectangle B sides long axial location and near presenting
The side of electric connection, etches a rectangle C, and the length of side of rectangle C is consistent with rectangle B short sides.
3. a kind of spacecraft module internal electric field as claimed in claim 2 measures broad-band antenna, it is characterised in that the center of rectangle E
Position overlaps with the center of rectangle A, and the length of side of rectangle E is 1.2~1.5 times of the rectangle B length of sides long.
4. a kind of spacecraft module internal electric field measurement broad-band antenna as claimed in claim 3, it is characterised in that rectangle E 2~
Improve the impedance matching property of antenna in 20GHz band limits, antenna impedance is controlled between 47 Ω~53 Ω.
5. a kind of spacecraft module internal electric field measurement broad-band antenna as claimed in claim 1, it is characterised in that feed connection can be with
Be connected with spectrum analysis equipment, measurement less than 0.01V/m spacecraft module in weak electric field environment, know wherein any frequency,
Electric Field Distribution and size at position.
6. a kind of spacecraft module internal electric field measurement broad-band antenna as claimed in claim 1, it is characterised in that the material of substrate is
One kind in epoxy resin, polytetrafluoroethylene (PTFE), glass fabric.
7. a kind of spacecraft module internal electric field as claimed in claim 1 measures broad-band antenna, it is characterised in that coating material is gold
Category material, is the one kind in tin, copper, silver.
8. a kind of spacecraft module internal electric field as claimed in claim 1 measures broad-band antenna, it is characterised in that etches and coats
Accuracy rating is ± 0.03mm.
9. a kind of spacecraft module internal electric field as claimed in claim 1 measures broad-band antenna, it is characterised in that coating layer thickness is 35
~70 microns.
10. a kind of spacecraft module internal electric field as claimed in claim 1 measures broad-band antenna, it is characterised in that in 2~20GHz
In band limits, aerial voltage standing-wave ratio is less than 2.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083695.8A CN106887681A (en) | 2017-02-16 | 2017-02-16 | A kind of spacecraft module internal electric field measures broad-band antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083695.8A CN106887681A (en) | 2017-02-16 | 2017-02-16 | A kind of spacecraft module internal electric field measures broad-band antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106887681A true CN106887681A (en) | 2017-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710083695.8A Pending CN106887681A (en) | 2017-02-16 | 2017-02-16 | A kind of spacecraft module internal electric field measures broad-band antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244654A (en) * | 2018-08-20 | 2019-01-18 | 中国电力科学研究院有限公司 | A kind of TV interference measurement paster antenna, TV interference measuring device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013115877A2 (en) * | 2011-11-11 | 2013-08-08 | Utah State University | Broadband antenna systems and methods |
| CN105789850A (en) * | 2014-12-19 | 2016-07-20 | 哈尔滨飞羽科技有限公司 | Ultra wideband antenna based on dual T-shaped groove |
-
2017
- 2017-02-16 CN CN201710083695.8A patent/CN106887681A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013115877A2 (en) * | 2011-11-11 | 2013-08-08 | Utah State University | Broadband antenna systems and methods |
| CN105789850A (en) * | 2014-12-19 | 2016-07-20 | 哈尔滨飞羽科技有限公司 | Ultra wideband antenna based on dual T-shaped groove |
Non-Patent Citations (1)
| Title |
|---|
| FAN LI, YONG-CHANG JIAO, LI-SHI REN, JIN-GANG GONG, BO CHEN: "Compact double T-shaped slots antenna with a rectangular patch for bandwidth enhancement", 《THE 9TH INTERNATIONAL SYMPOSIUM ON, ANTENNAS, AND EM THEORY》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244654A (en) * | 2018-08-20 | 2019-01-18 | 中国电力科学研究院有限公司 | A kind of TV interference measurement paster antenna, TV interference measuring device and method |
| CN109244654B (en) * | 2018-08-20 | 2022-09-27 | 中国电力科学研究院有限公司 | Patch antenna for television interference measurement, television interference measurement device and method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170623 |
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| RJ01 | Rejection of invention patent application after publication |