CN101794932B - Broadband high-gain magnetic field annular test antenna based on resonance principle and design method - Google Patents
Broadband high-gain magnetic field annular test antenna based on resonance principle and design method Download PDFInfo
- Publication number
- CN101794932B CN101794932B CN 200910312891 CN200910312891A CN101794932B CN 101794932 B CN101794932 B CN 101794932B CN 200910312891 CN200910312891 CN 200910312891 CN 200910312891 A CN200910312891 A CN 200910312891A CN 101794932 B CN101794932 B CN 101794932B
- Authority
- CN
- China
- Prior art keywords
- antenna
- test
- box body
- magnetic field
- control panel
- Prior art date
- 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.)
- Active
Links
Images
Abstract
The invention belongs to the technical field of electronic test and measurement and particularly relates to a broadband high-gain magnetic field annular test antenna based on a resonance principle. The broadband high-gain magnetic field annular test antenna based on the resonance principle is characterized by at least comprising a test handle, a resonance control circuit, a control panel, an antenna radiator, an antenna box body, a locating pull rod, a locating screw, a limit lever, a wave band switch and an N-shaped radiofrequency connector, wherein the antenna radiator is arranged in the antenna box body, the locating pull rod bestrides the antenna box body and is fixed by the locating screw, the distance of the locating pull rod is limited by the limit lever at one end of the locating pull rod, the limit lever is connected and fixed with the test handle by the control panel, and the N-shaped radiofrequency connector and the wave band switch are embedded in the control panel. The invention is suitable for shielding efficiency test of a shielding chamber, a shielding square cabin and a cabinet and radiation interference leakage detection test of large-scale electronic equipment and systems.
Description
Technical field
The invention belongs to Electronic Testing and field of measuring technique, particularly a kind of broadband high-gain magnetic field annular test antenna and method for designing based on resonance principle.
Background technology
In order to adapt to the demand of modern electronic technology development, the research and development of antenna mainly develop towards small size, broadband, high-gain, adjustable direction.In recent years, in the electromagnetic compatibility field, anti-electromagnetic interference performance for product requires more and more higher, because the electromagnetic interference (EMI) emissions frequency range of each electronic product is more and more wideer, and low-frequency range is particularly intensive, and at present in this field employed magnetic field antenna mostly be the arrowband magnetic field antenna, and the test frequency range is unadjustable, therefore needs a kind of wide band high-gain annular test antenna that can regulate the test frequency range.
Summary of the invention
The object of the present invention is to provide a kind of broadband high-gain magnetic field annular test antenna and method for designing based on resonance principle of regulating the test frequency range, test with the screening effectiveness that is applicable to shielded enclosure, shielding shelter and rack, and the radiated interference of large scale electronic equipment and system leak detection test.
Technical scheme of the present invention is: design a kind of broadband high-gain magnetic field annular test antenna and method for designing based on resonance principle, it is characterized in that: the broadband high-gain magnetic field annular test antenna based on resonance principle comprises test handle, resonant control circuit, control panel, antenna radiator, antenna box body, positioning tie bar, dog screw, gag lever post, band switch, N-type radio frequency connector at least; Antenna radiator is built in the antenna box body; Positioning tie bar is across fixing by dog screw on the antenna box body, and positioning tie bar one end limits its positioning tie bar distance by gag lever post; Gag lever post is connected it by control panel and is fixing with the test handle, N-type radio frequency connector and band switch are embedded on the control panel, and link to each other with the resonant control circuit of control panel inside.
Described antenna radiator is the planar spiral winding of internal diameter 169mm and external diameter 349mm, constitutes resonance device by antenna radiator and resonant control circuit.
Described resonant control circuit is LC series/parallel two-port.
Described control panel fixedly has band switch.
Described antenna radiator is to be formed with the counterclockwise coiling of concentric circles spiral way on same plane by the sub-thread enamelled wire; The antenna box body is to be made by insulating material, and antenna radiator is wrapped in the antenna box body.
Described positioning tie bar is made of the 30cm insulating material, and the test handle is made by cylinder type hollow PVC bar material.
Band switch on the described control panel has 5 gear: 14KHz, 100KHz, 150KHz, 200KHz, 1MHz, and its band switch cooperates with resonant control circuit will test frequency range (10KHz～30MHz) be divided into 6 to test frequency ranges: 14KHz gear: 10KHz～30KHz; 100KHz gear: 30KHz～120KHz; 150KHz gear: 120KHz～170KHz; 200KHz gear: 170KHz～800KHz; 1MHz gear: 800KHz～5MHz; 30MHz:5MHz～30MHz.
Inventive principle and advantage: comprise test handle, resonant control circuit, control panel, antenna radiator, antenna box body, positioning tie bar, dog screw, gag lever post, band switch, N-type radio frequency connector.Antenna radiator is built in the antenna box body; Be through at the antenna box body in the positioning tie bar; Limit its tie bar space by gag lever post; Dog screw stationary positioned pull bar finally is connected it by control panel and fixes with the test handle.Thereby the N-type radio frequency connector is embedded on the control panel with band switch and the looping antenna that links to each other with its internal resonance control circuit.Signal carries out resonance by tunable devices, obtains effective signal transmission, thereby strengthens the intensity of signal, but also can improve the radio-frequency selectivity of receiving system; Advantage of the present invention be high-gain, broadband, highly sensitive, the test frequency range is adjustable, it is convenient to measure.
Description of drawings
The present invention will be described in detail below in conjunction with the embodiment accompanying drawing.
Fig. 1 is structural representation of the present invention.
Among the figure: 1, test handle; 2, resonant control circuit; 3, control panel; 4, antenna radiator; 5, antenna box body; 6, positioning tie bar; 7, dog screw; 8, gag lever post; 9, band switch; 10, N-type radio frequency connector.
Embodiment
Shown in Fig. 1 annular test antenna structural representation, comprise test handle 1, resonant control circuit 2, control panel 3, antenna radiator 4, antenna box body 5, positioning tie bar 6, dog screw 7, gag lever post 8, band switch 9, N-type radio frequency connector 10; Antenna radiator 4 is built in the antenna box body 5; Positioning tie bar 6 is across fixing by dog screw 7 at antenna box body 5, and positioning tie bar 6 one ends limit its positioning tie bar 6 distances by gag lever post 8; Gag lever post 8 is connected it by control panel 3 and is fixing with test handle 1, N-type radio frequency connector 10 is embedded on the control panel 3 with band switch 9, and links to each other with the resonant control circuit 2 of control panel 3 inside.
Antenna radiator 4 is the planar spiral winding of internal diameter 169mm and external diameter 349mm, and resonance device is made of antenna radiator 4 (coil) and resonant control circuit 2.Resonant control circuit 2 is made up of LC series/parallel two-port, regulate control panel 3 band switch 9 is fixedly arranged, by regulating band switch 9 LC series/parallel two-port is operated on the corresponding resonance frequency, input impedance under this frequency domain reaches 50 Ω, thereby makes input impedance and the test receiver of this embodiment ring Shape antenna under this frequency reach impedance matching; Antenna radiator 4 is to be formed with the counterclockwise coiling of concentric circles spiral way on same plane by the sub-thread enamelled wire; Antenna box body 5 is to be made by insulating material, in coil is wrapped in; Positioning tie bar 6 is made of the 30cm insulating material, and fixing by dog screw 7; Test handle 1 is made by cylinder type hollow PVC bar material, to reduce the overall weight of ring Shape antenna.
Antenna positioning tie bar 6 is made of the long cross bar of 30cm, to reach the effect of restriction antenna and system under test (SUT) measuring distance.
Band switch 9 on the control panel 3 has 5 gear: 14KHz, 100KHz, 150KHz, 200KHz, 1MHz, and its band switch 9 cooperates with resonant control circuit 2 will test frequency range (10KHz～30MHz) be divided into 6 to test frequency ranges: 14KHz gear: 10KHz～30KHz; 100KHz gear: 30KHz～120KHz; 150KHz gear: 120KHz～170KHz; 200KHz gear: 170KHz～800KHz; 1MHz gear: 800KHz～5MHz; 30MHz:5MHz～30MHz can regulate band switch according to the difference of frequency range during test.
Claims (4)
1. based on the broadband high-gain magnetic field annular test antenna of resonance principle, it is characterized in that: which comprises at least test handle (1), resonant control circuit (2), control panel (3), antenna radiator (4), antenna box body (5), positioning tie bar (6), dog screw (7), gag lever post (8), band switch (9), N-type radio frequency connector (10); Antenna radiator (4) is built in the antenna box body (5); Positioning tie bar (6) is across fixing by dog screw (7) at antenna box body (5), and positioning tie bar (6) one ends limit its positioning tie bar (6) distance by gag lever post (8); Gag lever post (8) is connected it by control panel (3) and is fixing with test handle (1), N-type radio frequency connector (10) is embedded on the control panel (3) with band switch (9), and links to each other with the resonant control circuit (2) of control panel (3) inside.
2. the broadband high-gain magnetic field annular test antenna based on resonance principle according to claim 1, it is characterized in that: described antenna radiator (4) is the planar spiral winding of internal diameter 169mm and external diameter 349mm, constitutes resonance device by antenna radiator (4) and resonant control circuit (2).
3. the broadband high-gain magnetic field annular test antenna based on resonance principle according to claim 1, it is characterized in that: described resonant control circuit (2) is LC series/parallel two-port.
4. the broadband high-gain magnetic field annular test antenna based on resonance principle according to claim 1, it is characterized in that: described antenna radiator (4) is to be formed with the counterclockwise coiling of concentric circles spiral way on same plane by the sub-thread enamelled wire; Antenna box body (5) is to be made by insulating material, and antenna radiator (4) is wrapped in the antenna box body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910312891 CN101794932B (en) | 2009-12-31 | 2009-12-31 | Broadband high-gain magnetic field annular test antenna based on resonance principle and design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910312891 CN101794932B (en) | 2009-12-31 | 2009-12-31 | Broadband high-gain magnetic field annular test antenna based on resonance principle and design method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101794932A CN101794932A (en) | 2010-08-04 |
| CN101794932B true CN101794932B (en) | 2013-09-11 |
Family
ID=42587423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910312891 Active CN101794932B (en) | 2009-12-31 | 2009-12-31 | Broadband high-gain magnetic field annular test antenna based on resonance principle and design method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101794932B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956952B (en) * | 2012-10-25 | 2018-02-13 | 西安开容电子技术有限责任公司 | A kind of design method of Miniaturized portable near-field test antenna |
| CN102956989B (en) * | 2012-11-12 | 2019-01-08 | 西安开容电子技术有限责任公司 | A kind of design method of low-frequency electric field test antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006250571A (en) * | 2005-03-08 | 2006-09-21 | Maspro Denkoh Corp | Electric field strength measuring device for testing emc |
| WO2009143289A2 (en) * | 2008-05-20 | 2009-11-26 | Deka Products Limited Partnership | Rfid system |
| CN201654097U (en) * | 2009-12-31 | 2010-11-24 | 西安开容电子技术有限责任公司 | Broadband high-gain magnetic field loop test antenna based on resonance principle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0738324A (en) * | 1993-07-19 | 1995-02-07 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic field detecting element |
| CN1241306A (en) * | 1996-10-25 | 2000-01-12 | 格姆普拉斯有限公司 | Armoured magnetic field antenna in printed circuit |
-
2009
- 2009-12-31 CN CN 200910312891 patent/CN101794932B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006250571A (en) * | 2005-03-08 | 2006-09-21 | Maspro Denkoh Corp | Electric field strength measuring device for testing emc |
| WO2009143289A2 (en) * | 2008-05-20 | 2009-11-26 | Deka Products Limited Partnership | Rfid system |
| CN201654097U (en) * | 2009-12-31 | 2010-11-24 | 西安开容电子技术有限责任公司 | Broadband high-gain magnetic field loop test antenna based on resonance principle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101794932A (en) | 2010-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100381829C (en) | Electromagnetic detector for electromagnetic compatible diagnostic test in vehicle | |
| CN102944780A (en) | Testing method for shielding effectiveness of small-size shielding cavity | |
| CN201464580U (en) | Wireless terminal electromagnetic compatibility testing device | |
| TWI457574B (en) | Sensing element and signal sensing device with the same | |
| CN105116249B (en) | A kind of the wide-band shield effectiveness test device and method of small-sized shielding case | |
| CN106443390B (en) | Flexible PCB differential induction coil and mounting method | |
| CN101794932B (en) | Broadband high-gain magnetic field annular test antenna based on resonance principle and design method | |
| CN201654097U (en) | Broadband high-gain magnetic field loop test antenna based on resonance principle | |
| CN105301460A (en) | Test method for research of transmission characteristics of ultrahigh frequency signals by partial discharge of transformer | |
| CN102955091B (en) | Shielding shelter low frequency shield effectiveness test and evaluation method under the condition of whole cabin | |
| CN202916362U (en) | Device for testing the shielding effectiveness of small shielding cavity | |
| CN108599391B (en) | Wireless power transmission device based on near-zero magnetic permeability metamaterial | |
| CN101740850A (en) | High-gain broadband antenna based on the impedance matching principle and design method thereof | |
| Imburgia et al. | Investigation of PCB-based Inductive Sensors Orientation for Corona Partial Discharge Detection | |
| Hwang et al. | Development of UHF sensor for partial discharge diagnosis of power transformer | |
| CN108680797B (en) | Antenna test method and antenna test equipment | |
| CN102981028A (en) | Near-field electromagnetic probe | |
| JP2009264972A (en) | Antenna for nqr inspection and nqr inspection device using the same | |
| CN103884971A (en) | Electrical equipment partial discharge detecting device and detecting method thereof | |
| JP6322870B2 (en) | Flow rate measuring device and wireless device used for flow rate measuring device | |
| CN106711614A (en) | Novel coil type lightning wave antenna | |
| CN102509961A (en) | Radio-frequency cable interface device and shield method thereof | |
| CN201725866U (en) | Combined high-gain broadband symmetric-dipole antenna | |
| CN2837946Y (en) | RF tester | |
| CN201725865U (en) | High-gain broadband antenna based on impedance matching principle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |