CN201725865U - High-gain broadband antenna based on impedance matching principle - Google Patents
High-gain broadband antenna based on impedance matching principle Download PDFInfo
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- CN201725865U CN201725865U CN200920319249.3U CN200920319249U CN201725865U CN 201725865 U CN201725865 U CN 201725865U CN 200920319249 U CN200920319249 U CN 200920319249U CN 201725865 U CN201725865 U CN 201725865U
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- antenna
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- impedance matching
- impedance
- conversion device
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- 238000006243 chemical reaction Methods 0.000 claims description 16
- 239000011324 bead Substances 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000035807 sensation Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000005855 radiation Effects 0.000 abstract description 5
- 230000005672 electromagnetic field Effects 0.000 abstract description 4
- 230000036039 immunity Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract 2
- 230000009466 transformation Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
本实用新型属于电子测试与测量技术领域，涉及一种基于阻抗匹配原理的高增益宽频带天线，其特征是：它包括圆锥形天线振子、阻抗变换装置、天线馈电回路、天线支杆、N型射频连接器以及螺纹内导体；两个圆锥形天线振子通过端部的螺纹内导体与阻抗变换装置的螺纹孔相连，两个圆锥形天线振子对称分布在阻抗变换装置两侧，阻抗变换装置整体与天线支杆连接；天线馈电回路内置于天线支杆内，N型射频连接器外嵌于天线支杆底端。它适用于电磁场辐射发射的测量，而且也用于辐射敏感度或抗扰度的测量，以及屏蔽室、屏蔽方舱、机柜的屏蔽效能以及大型电子设备和系统的辐射干扰检漏测试。
The utility model belongs to the technical field of electronic testing and measurement, and relates to a high-gain broadband antenna based on the principle of impedance matching. Type RF connector and threaded inner conductor; two conical antenna elements are connected to the threaded holes of the impedance transformation device through the threaded inner conductor at the end, and the two conical antenna elements are symmetrically distributed on both sides of the impedance transformation device. It is connected with the antenna pole; the antenna feed circuit is built in the antenna pole, and the N-type radio frequency connector is embedded in the bottom of the antenna pole. It is suitable for the measurement of electromagnetic field radiation emission, and also for the measurement of radiation sensitivity or immunity, as well as the shielding effectiveness of shielded rooms, shielded shelters, cabinets, and radiation interference leak detection tests for large electronic equipment and systems.
Description
Technical field
The utility model belongs to Electronic Testing and field of measuring technique, relates to a kind of high-gain broadband antenna based on impedance matching principle.
Background technology
In the electromagnetic compatibility field, the electric field and the ambient electromagnetic field that leak when being used to receive equipment under test work are especially measured in the frequency range at 30MHz～200MHz, often use biconical antenna.And himself impedance of present employed antenna and test macro can not finely mate, thereby have strengthened self reflection, make its standing-wave ratio very big.This just can't improve the sensitivity that signal receives, and needs a kind of high-gain broadband antenna based on impedance matching principle on the engineering for this reason, the antenna of promptly low standing-wave ratio, high radiated emission efficient.
Summary of the invention
The purpose of this utility model is to provide a kind of high-gain broadband antenna based on impedance matching principle, to be applicable to the measurement of electromagnetic field radiation emission, and be used for the measurement of radiated susceptibility or immunity to interference, and shielded enclosure, shielding shelter, the screening effectiveness of rack and the radiated interference leak detection test of large scale electronic equipment and system.
To achieve these goals, the technical solution of the utility model is: the high-gain broadband antenna based on impedance matching principle is characterized in that: it comprises conical antenna oscillator, impedance conversion device, antenna feed loop, antenna pole, N type radio frequency connector and screw thread inner wire; Two conical antenna oscillators link to each other with the screwed hole of impedance conversion device by the screw thread inner wire of end, and two conical antenna oscillators are symmetrically distributed in the impedance conversion device both sides, and impedance conversion device integral body is connected with antenna pole; The antenna feed loop is built in the antenna pole, and N type radio frequency connector is embedded in antenna pole bottom outward.
Described antenna feed loop is to be made of N type radio frequency connector and radio frequency coaxial-cable and one group of ferrite bead.
Described conical antenna oscillator is made up of six roots of sensation metal cylinder, and is 60 ° of angles mutually and evenly distributes, with strengthen antenna with regard to receptivity.
Described impedance conversion device is to constitute the balance/imbalance converting means by the form concentric spirals inductance, and its effect is that the impedance transition with 120 Ω is 50 Ω, so that antenna impedance and feeder line coupling.
Described antenna feed loop is formed by one 50 Ω coaxial radio frequency cable, and it links to each other with N type radio frequency connector.
The utility model advantage: the utility model relates to a kind of test antenna of calibration test and electromagnetic compatibility radiated interference test macro, and it not only can be used for the measurement of electromagnetic field radiation emission, and can be used for the measurement of radiated susceptibility or immunity to interference.It need not be tuning, for convenience detach, have characteristics such as high-gain, broadband, be fit to cooperate with receiver, thereby the composition Auto-Test System carried out sweep check to system.
Description of drawings
Below in conjunction with the specific embodiment accompanying drawing the utility model is described in detail.
Fig. 1 is based on the high-gain broadband antenna structural representation of impedance matching principle;
Among the figure: 1, conical antenna oscillator; 2, impedance conversion device; 3, antenna feed loop; 4, antenna pole; 5, N type radio frequency connector; 6, screw thread inner wire.
Embodiment
Shown in the structural representation of the high-gain wide frequency antenna of Fig. 1 impedance matching principle, based on the high-gain broadband antenna of impedance matching principle, comprise conical antenna oscillator 1, impedance conversion device 2, antenna feed loop 3, antenna pole 4, N type radio frequency connector 5 and screw thread inner wire 6; Two conical antenna oscillators 1 link to each other with the screwed hole of impedance conversion device 2 by the screw thread inner wire 6 of end, and two conical antenna oscillators 1 are symmetrically distributed in impedance conversion device 2 both sides, and impedance conversion device 2 integral body are connected (welding) with antenna pole 4; Antenna feed loop 3 is built in the antenna pole 4, N type radio frequency connector 5 outer antenna pole 4 bottoms that are embedded in.Antenna feed loop 3 is to be made of N type radio frequency connector 5 and radio frequency coaxial-cable and one group of ferrite bead.Conical antenna oscillator 1 is made up of six roots of sensation metal cylinder, and is 60 ° of angles mutually and evenly distributes, with strengthen antenna with regard to receptivity.Impedance conversion device 2 is to constitute the balance/imbalance converting means by the form concentric spirals inductance, and its effect is that the impedance transition with 120 Ω is 50 Ω, so that antenna impedance and feeder line coupling.Antenna feed loop 3 is formed by one 50 Ω coaxial radio frequency cable, and it links to each other with N type radio frequency connector 5.In the antenna feed loop 3, one group of ferrite bead is fixed on the 50 Ω coaxial radio frequency cables, to eliminate the high-frequency coupling of cable and antenna body, the input impedance that can regulate simultaneously feeding circuit reaches 50 Ω, make the antenna overall impedance reach 50 Ω, with the fine coupling of test macro, reach very little antenna standing wave ratio.
Claims (5)
1. based on the high-gain broadband antenna of impedance matching principle, it is characterized in that: it comprises conical antenna oscillator (1), impedance conversion device (2), antenna feed loop (3), antenna pole (4), N type radio frequency connector (5) and screw thread inner wire (6); Two conical antenna oscillators (1) link to each other with the screwed hole of impedance conversion device (2) by the screw thread inner wire (6) of end, two conical antenna oscillators (1) are symmetrically distributed in impedance conversion device (2) both sides, and impedance conversion device (2) is whole to be connected with antenna pole (4); Antenna feed loop (3) is built in the antenna pole (4), outer antenna pole (4) bottom that is embedded in of N type radio frequency connector (5).
2. the high-gain broadband antenna based on impedance matching principle according to claim 1 is characterized in that: described antenna feed loop (3) is by N type radio frequency connector (5) and radio frequency coaxial-cable and one group of ferrite bead formation.
3. the high-gain broadband antenna based on impedance matching principle according to claim 1 is characterized in that: described conical antenna oscillator (1) is made up of six roots of sensation metal cylinder, and is 60 ° of angles mutually and evenly distributes.
4. the high-gain broadband antenna based on impedance matching principle according to claim 1 is characterized in that: described impedance conversion device (2) is to constitute the balance/imbalance converting means by the form concentric spirals inductance.
5. the high-gain broadband antenna based on impedance matching principle according to claim 1 is characterized in that: described antenna feed loop (3) is formed by one 50 Ω coaxial radio frequency cable, and it links to each other with N type radio frequency connector (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920319249.3U CN201725865U (en) | 2009-12-31 | 2009-12-31 | High-gain broadband antenna based on impedance matching principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920319249.3U CN201725865U (en) | 2009-12-31 | 2009-12-31 | High-gain broadband antenna based on impedance matching principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725865U true CN201725865U (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920319249.3U Expired - Lifetime CN201725865U (en) | 2009-12-31 | 2009-12-31 | High-gain broadband antenna based on impedance matching principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955091A (en) * | 2012-11-29 | 2013-03-06 | 西安开容电子技术有限责任公司 | Method for testing and evaluating low frequency shielding efficiency of shielding square cabin under condition of complete cabin |
-
2009
- 2009-12-31 CN CN200920319249.3U patent/CN201725865U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955091A (en) * | 2012-11-29 | 2013-03-06 | 西安开容电子技术有限责任公司 | Method for testing and evaluating low frequency shielding efficiency of shielding square cabin under condition of complete cabin |
| CN102955091B (en) * | 2012-11-29 | 2015-10-21 | 西安开容电子技术有限责任公司 | Shielding shelter low frequency shield effectiveness test and evaluation method under the condition of whole cabin |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |