CN2890939Y - Small super-broad band double-taper measuring antenna - Google Patents
Small super-broad band double-taper measuring antenna Download PDFInfo
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- CN2890939Y CN2890939Y CN 200620078232 CN200620078232U CN2890939Y CN 2890939 Y CN2890939 Y CN 2890939Y CN 200620078232 CN200620078232 CN 200620078232 CN 200620078232 U CN200620078232 U CN 200620078232U CN 2890939 Y CN2890939 Y CN 2890939Y
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Abstract
The utility model discloses a small super Broad Band biconical measuring antenna for solving the problems of relative small screening effect measurement of a screening box, which comprises substantially a radiator 2, a supporting medium clipping plate 3, a soleplate 4, a coaxial feeder line 5 and a matching net 7, wherein the radiator 2 equips the biconical body which is fixed on the soleplate 4 through a couple of supporting medium clipping plates 3 with each has the lateral top equipped with a semi-cone hole with a rotary table dent 6. The two clipping plates are attached together to form a complete anastomosis conformation with the cone hole and the cone body. The other side of each clipping plate is equipped with feeder holes, and coaxial feeder wires penetrate through the supporting medium clipping plate to feed electricity for the antenna radiator. A matching circuit box 7 is equipped on the electricity feeding point with both ends connecting with coaxial joints 8 to conveniently connect with the antenna and the feeder. The utility model has the advantages of simple conformation, small cubage, wide band and excellent consistency, thereby can be widely applied for electromagnetic compatibility measurement.
Description
Technical field
The utility model relates to antenna technical field, and specifically a kind of pocket super-broadband bipyramid is measured antenna, can be used widely in Electro Magnetic Compatibility is measured.
Background technology
In complex electromagnetic environments day by day, it is more and more serious that the electromagnetic interference (EMI) between the various instruments becomes, thereby the Electro Magnetic Compatibility between them just seems and is even more important.Particularly in the engineering practice of electromagnetic compatibility, some accurate instrument and equipments are for the energy operate as normal, and it is interior to reduce extraneous electromagnetic interference (EMI) often to need to be placed on a special shielding box, and this just requires shielding box to have good shield effectiveness.The test of shielding box shield effectiveness generally need adopt endogenous method to measure, and promptly will put into shielding box to antenna and test.During test, owing to require the frequency band of test very wide, then must adopt broad-band antenna to test, but conventional broad-band antenna size is generally all very big, can't put in the smaller usually shielding box of size, this has brought inconvenience and difficult just for the shield effectiveness test of shielding box.
The content of utility model
It is big that the purpose of this utility model is to overcome traditional wide-band width measurement antenna volume, and the deficiency of inconvenience test small size shielding box provides a kind of pocket super-broadband biconical antenna, to reduce the requirement to used space, makes the measurement of shielding box more convenient.
The technical scheme that realizes the utility model purpose is to realize the broad band performance of Antenna of small dimensions by the design to antenna structure, to satisfy the requirement of the little shielding box of test.Entire antenna mainly is made up of radiator, Supporting Media clamping plate, base plate, coaxial supply line and matching network, and wherein, radiator adopts the double cone body that has the round platform groove, and this double cone body is fixed on the base plate by the Supporting Media clamping plate.
Above-mentioned pocket super-broadband biconical antenna, wherein the Supporting Media clamping plate are two, the top of each clamping plate one side has the half cone hole, two clamping plate are fixed together and form a complete taper hole and the identical structure of cone, opposite side has feeder hole, and coaxial supply line passes from the Supporting Media clamping plate antenna radiator is carried out feed.
Above-mentioned pocket super-broadband biconical antenna wherein is equipped with the match circuit box on the antenna radiator feeding point, and the two ends of this match circuit box are connected to coaxial fitting, so that be connected with feed with antenna.
Above-mentioned pocket super-broadband biconical antenna, wherein the double cone body is fixed on the medium clamping plate by dieelctric sheet, and these medium clamping plate are fixed on the base plate again.
The utility model has solved the requirement of the little shielding box of test in the engineering owing to adopt antenna size but much smaller than the small size cone antenna of traditional measurement antenna; Simultaneously because the utility model adopts the double cone body radiator structure that has the round platform groove, broadening measure the frequency band of antenna, make this measurement antenna not only can satisfy the requirement of the test space, and can satisfy the requirement of testing broad-band; Because the utility model adopts the structure that adds matching network, can on discrete frequency, further reduce test frequency in addition.Have simple in structure, handling ease, cheap, the advantage of high conformity.
Description of drawings
Fig. 1 is a structure front elevation of the present utility model
Fig. 2 is a matching box structural drawing of the present utility model
Fig. 3 is matching network circuit figure of the present utility model
Fig. 4 is a VSWR frequency characteristic of the present utility model
Fig. 5 is that the utility model adds VSWR frequency characteristic behind the matching network
Fig. 6 is an elevation radiation patytern of the present utility model
Fig. 7 is a horizontal radiation pattern of the present utility model
Embodiment
Followingly structure of the present utility model is described in further detail with reference to accompanying drawing.
See figures.1.and.2, the utility model 1 mainly is made up of radiator 2, Supporting Media clamping plate 3, base plate 4, coaxial supply line 5, matching network 7.Wherein radiator 2 is made of two conical metallic conductors, the bottom of each cone has round platform groove 6, the top of each cone has narrow slot downward vertically, inserts thin-medium sheet (not drawing among the figure) in the slit, is used for cone 2 is fixed on dieelctric sheet.This dieelctric sheet is fixed on the Supporting Media clamping plate 3, the Supporting Media clamping plate are made of two bakelite plates, the top, side of each clamping plate has half cone hole (not drawing among the figure), make two clamping plate close the back and become a complete taper hole, constitute the structure of coincideing with cone 2, Supporting Media clamping plate lower end one side has aperture, makes things convenient for feeder line 5 to insert.These Supporting Media clamping plate are fixed on the base plate 4, and this base plate is the cuboid bakelite plate.50 ohm of cables of coaxial supply line 5 employing standards connect N connector.
With reference to Fig. 3 and Fig. 4, the utility model is measured the available frequencies low side in order to reduce, and has adopted the implementation that adds match circuit.This match circuit is made up of RC network and LC network, and match circuit is placed in the can 7.This match circuit can is a rectangular shape box, and the centre has groove, and the match circuit plate is placed wherein, and two ends are connected to coaxial fitting 8, so that be connected with feed with antenna, can obtain lower survey frequency by the component value of regulating match circuit.
Embodiment
The utility model is in 500～2500MHz frequency range, according to structure fabrication shown in Figure 1 a pocket super-broadband bipyramid measure antenna, and made match circuit, the survey frequency low side is descended.Through the reality test, the electrical performance indexes of its antenna such as Fig. 4～shown in Figure 6.
From the VSWR frequency characteristic of Fig. 4 as seen, this measurement antenna standing wave ratio of input voltage in the frequency band range of 500MHz～2500MHz satisfies the requirement of general measure shielding box shield effectiveness fully less than 4.
From Fig. 5 add behind the matching network the VSWR frequency characteristic as seen, this measurement antenna can further reduce test frequency on discrete frequency, promptly on the frequency of 220MHz, 400MHz and 470MHz voltage standing wave ratio (VSWR) less than 3.
From the elevation radiation patytern of Fig. 6 as seen, the utility model does not have radiation at the axis direction of bipyramid.
From the horizontal radiation pattern of Fig. 7 as seen, the utility model is a homogeneous radiation at surface level substantially.
More than actual measurement shows, the utility model is different from traditional measurement antenna, also be different from existing biconical antenna, have good performance index, but the size of antenna is far smaller than traditional measurement antenna, can be placed in the shielding box of similar notebook computer size its shield effectiveness is tested, can be widely used in test all kinds of shielding box shield effectivenesses.
For those skilled in the art; after having understood content of the present utility model; all may be under the situation that does not deviate from technical solutions of the utility model; carry out various corrections and change on form and the details, but these are based on the correction of the utility model thought with change still within claim protection domain of the present utility model.
Claims (6)
1. a pocket super-broadband bipyramid is measured antenna, comprises radiator (2), base plate (4), coaxial supply line (5), it is characterized in that, radiator (2) adopts the double cone body that has round platform groove (6).
2. pocket super-broadband bipyramid according to claim 1 is measured antenna, it is characterized in that described double cone body is fixed on the base plate (4) by Supporting Media clamping plate (3).
3. pocket super-broadband bipyramid according to claim 2 is measured antenna, it is characterized in that Supporting Media clamping plate (3) are two, the top of each clamping plate one side has the half cone hole, and two clamping plate are fixed together and form complete taper hole and the identical structure of cone, and opposite side has feeder hole.
4. pocket super-broadband bipyramid according to claim 1 is measured antenna, it is characterized in that coaxial supply line (5) passes Supporting Media clamping plate (3) to the antenna radiator feed.
5. pocket super-broadband bipyramid according to claim 4 is measured antenna, it is characterized in that being equipped with on the antenna radiator feeding point match circuit box (7), and the two ends of this match circuit box are connected to coaxial fitting (8).
6. pocket super-broadband bipyramid according to claim 1 is measured antenna, it is characterized in that described double cone body is fixed on the medium clamping plate (3) by dieelctric sheet, and these medium clamping plate are fixed on the base plate (4) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078232 CN2890939Y (en) | 2006-01-11 | 2006-01-11 | Small super-broad band double-taper measuring antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078232 CN2890939Y (en) | 2006-01-11 | 2006-01-11 | Small super-broad band double-taper measuring antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2890939Y true CN2890939Y (en) | 2007-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620078232 Expired - Fee Related CN2890939Y (en) | 2006-01-11 | 2006-01-11 | Small super-broad band double-taper measuring antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2890939Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662078B (en) * | 2009-07-30 | 2012-08-29 | 北京大泽科技有限公司 | Small shielding body electromagnetic shielding performance testing device, system and method therefor |
| CN101702466B (en) * | 2009-11-09 | 2012-10-31 | 哈尔滨工程大学 | High-gain wide-frequency band omni antenna |
| CN103825102A (en) * | 2014-03-19 | 2014-05-28 | 哈尔滨工业大学 | Ultra wide band symmetric biconical antenna with compound curve as bus |
| CN109142890A (en) * | 2018-08-23 | 2019-01-04 | 清华大学 | Terahertz leaky-wave antenna measuring system |
| CN110364827A (en) * | 2019-08-01 | 2019-10-22 | 武汉虹信通信技术有限责任公司 | Radiate power-devided circuit plate and large scale array antenna |
-
2006
- 2006-01-11 CN CN 200620078232 patent/CN2890939Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662078B (en) * | 2009-07-30 | 2012-08-29 | 北京大泽科技有限公司 | Small shielding body electromagnetic shielding performance testing device, system and method therefor |
| CN101702466B (en) * | 2009-11-09 | 2012-10-31 | 哈尔滨工程大学 | High-gain wide-frequency band omni antenna |
| CN103825102A (en) * | 2014-03-19 | 2014-05-28 | 哈尔滨工业大学 | Ultra wide band symmetric biconical antenna with compound curve as bus |
| CN109142890A (en) * | 2018-08-23 | 2019-01-04 | 清华大学 | Terahertz leaky-wave antenna measuring system |
| CN109142890B (en) * | 2018-08-23 | 2020-03-31 | 清华大学 | Terahertz leaky-wave antenna measuring system |
| US11437729B2 (en) | 2018-08-23 | 2022-09-06 | Tsinghua University | Terahertz leaky-wave antenna measuring system |
| CN110364827A (en) * | 2019-08-01 | 2019-10-22 | 武汉虹信通信技术有限责任公司 | Radiate power-devided circuit plate and large scale array antenna |
| CN110364827B (en) * | 2019-08-01 | 2020-12-18 | 中信科移动通信技术有限公司 | Radiation power distribution circuit board and large-scale array antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |