CN112803167A - Double-frequency log periodic antenna for jammer - Google Patents
Double-frequency log periodic antenna for jammer Download PDFInfo
- Publication number
- CN112803167A CN112803167A CN202011538580.1A CN202011538580A CN112803167A CN 112803167 A CN112803167 A CN 112803167A CN 202011538580 A CN202011538580 A CN 202011538580A CN 112803167 A CN112803167 A CN 112803167A
- Authority
- CN
- China
- Prior art keywords
- metal
- oscillator
- frequency
- dual
- antenna
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/10—Logperiodic antennas
-
- 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
Abstract
The invention discloses a dual-frequency log-periodic antenna for an interference machine, which comprises a metal base, front and rear end radiation oscillator units, a metal cavity ridge, a transmission line inside the ridge and a back fixing plate. The back of the oscillator of the log periodic antenna is connected with a metal transmission wire, the top end of the ridge of the metal cavity is provided with a notch and a fillet, the symmetric radiator is fixedly connected with the ridge of the cavity, and the transmission wire is connected to the top end of the oscillator from a radio frequency access port through the metal slot. The electric size of the unit oscillator structure is converted according to a certain scale factor, the size of the unit oscillator structure is reduced in proportion from a low frequency band to a high frequency band, and the index of the antenna in a double frequency band meets the system design, and the invention has the beneficial effects that: the antenna has the advantages of high dual-band gain, simple manufacturing process, and good electrical property and radiation polarization property.
Description
Technical Field
The invention relates to the field of antennas, in particular to a dual-frequency log periodic antenna for an jammer.
Background
With the development of modern communication and radar technologies, the application of jammer devices requires antennas combined with corresponding frequency band coverage. A log periodic antenna, which is a representative of a broadband antenna, has stable radiation characteristics and high directivity in a relatively wide frequency band, and also has excellent electrical characteristics, a structure that is easy to process, and can be used at various frequencies and elevation angles.
In order to meet the adaptive requirements of environmental miniaturization, the requirements on the performance of antennas under different environmental adaptation are gradually increased, and it is necessary to design a broadband, miniaturized and easily-processed and installed dual-frequency antenna.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a dual-band log periodic antenna for jammers, which solves the problems of the installation design of the dual-band antenna with wide frequency band and small size.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dual-frequency log-periodic antenna for an interference machine comprises a metal base, front and rear end radiation oscillator units, a metal cavity ridge, a transmission line inside the ridge and a back fixing plate. The back of the oscillator of the log periodic antenna is connected with a metal transmission wire, the top end of the ridge of the metal cavity is provided with a notch and a fillet, the symmetric radiator is fixedly connected with the ridge of the cavity, and the transmission wire is connected to the top end of the oscillator from a radio frequency access port through the metal slot.
Preferably, the front and rear radiation oscillator units of the antenna are both of a symmetrical double-layer structure, the corresponding sizes of the radiation oscillators are reduced in proportion, and the front and rear radiation oscillator units are distributed in a back-to-back mode.
Preferably, the distance between the frequency range units of the log periodic antenna is 20mm, and good isolation is kept.
Preferably, a rectangular metal block is added at the lower end of the front-section radiation oscillator structure to perform overall impedance matching.
Preferably, the back fixing plate is provided with a plurality of through holes, and the excessive part is grooved and cut off, so that the back fixing plate has the characteristics of miniaturization and light weight.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a partial enlarged, schematic left side view of the present invention;
[ description of reference ]
1. A front-end radiation oscillator unit; 2. a rear-end radiation oscillator unit; 3. a metal base; 4. a fixing through hole; 5. a front end cavity ridge; 6. a rear end cavity ridge; 7. a transmission line inside the ridge; 8. a fixing plate; 11. a front-mounted oscillator; 12. a front-mounted dipole; 21 rear vibrator; 22. and a symmetrical oscillator is arranged at the back.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a dual-frequency log-periodic antenna for an interference machine comprises a front-end radiation oscillator unit 1, a rear-end radiation oscillator unit 2, a metal base 3, a fixing through hole 4, a front-end cavity ridge 5, a rear-end cavity ridge 6, a transmission line 7 inside the ridge, a fixing plate 8, a front oscillator 11, a front symmetrical oscillator 12, a rear oscillator 21 and a rear symmetrical oscillator 22.
As an exemplary illustration, a dual-frequency log periodic antenna for jammers, as shown in fig. 1 and 3: the front end and the rear end of the antenna radiation oscillator units 1 are of symmetrical double-layer structures, the unit oscillator structural size is reduced and converted according to a certain scale factor from the electrical size corresponding to the lowest frequency, and the low-frequency-band radiation oscillator and the high-frequency-band radiation oscillator are sequentially arranged along the axial direction. The lower end of the front-section radiation oscillator structure is additionally provided with a rectangular metal block for impedance matching. The front-end oscillator 11 of the front-end radiation oscillator unit 1 is changed into a front-end symmetrical oscillator 12 through axial symmetry of a certain distance of a center origin, the two symmetrical double-layer structures form the front-end radiation oscillator unit 1 of the antenna, the rear-end oscillator 21 of the rear-end radiation oscillator unit 2 is changed into a rear-end symmetrical oscillator 22 through axial symmetry of the certain distance of the center origin, and the two symmetrical double-layer structures form the front-end radiation oscillator unit 2 of the antenna.
Referring to fig. 4 to further explain this embodiment, the front-end radiation oscillator unit 1 is fixed at a position near the front edge of the metal base 3, the rear-end radiation oscillator unit 2 is fixed at the axial center of the metal base 3, and the two groups of radiation units are distributed in a back-to-back manner, with a distance of 20mm, so as to ensure that the distance between the frequency bands is relatively good. The working bandwidth of the front-end radiation oscillator unit 1 is 2.7GHz-6GHz, and the working bandwidth of the rear-end radiation oscillator unit 2 is 8GHz-12 GHz.
The embodiment is further described with reference to fig. 4-5, the back of the front-end radiating vibrator unit 1 is fixedly connected with the back of the front-end cavity ridge 5, the back of the rear-end radiating vibrator unit 2 is fixedly connected with the back of the front-end cavity ridge 6, the upper end of the transmission line 7 inside the ridge is connected to the top end of the front-end vibrator unit through the circular chamfer slotting space of the symmetrical unit, and the lower end of the transmission line is communicated with the metal base 3 through the radio frequency connector through the metal cavity ridge to realize the radiation of electromagnetic energy.
The invention solves the requirements of system design miniaturization, wide frequency band and directionality through the embodiment, the log periodic antenna has simple processing and manufacturing process and lower cost, can realize the dual-band characteristics of 2.7GHz-6GHz and 8GHz-12GHz, and has the characteristics of miniaturization and light weight as well as good electrical property and radiation property.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (4)
1. A dual-frequency log periodic antenna for an jammer, characterized by: the dual-band antenna comprises a metal base, a plastic back fixing plate, a cavity metal transmission wire extending from a bottom feed port, and a front metal radiation oscillator unit and a rear metal radiation oscillator unit which are axially symmetrical and correspond to the dual-band, wherein the oscillator back at the top of the log periodic antenna is connected with the metal transmission wire in an end manner, the top end of a metal cavity ridge is provided with a notch and a fillet, the symmetric radiator is fixedly connected with the cavity ridge, and the transmission wire passes through the metal groove and is connected to the top end of the oscillator from a radio frequency access port.
2. A dual-frequency log periodic antenna for jammers as claimed in claim 1, characterized in that: the receiving bandwidths of the antenna are respectively 2.7GHz-6GHz and 8GHz-12GHz, after the structural size of the unit oscillator is converted from the electrical size corresponding to the lowest frequency according to a certain scale factor, the length of the oscillator in the segmented frequency band is reduced and optimized according to the scale factor, and the broadband characteristic and the linear polarization characteristic are realized.
3. A dual-frequency log periodic antenna for jammers as claimed in claim 1 or 2, characterized in that: the front end radiation oscillator unit and the rear end radiation oscillator unit are of symmetrical double-layer structures and are distributed in a back-to-back arrangement mode, and the low-frequency-band radiation oscillator unit and the high-frequency-band radiation oscillator unit are sequentially arranged along the axial direction.
4. A dual-frequency log periodic antenna for jammers as claimed in claim 1, characterized in that: the height of the fixing plate is 45mm, the thickness of the base is 4mm, and the diameter of the fixing through hole is 4.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011538580.1A CN112803167A (en) | 2020-12-23 | 2020-12-23 | Double-frequency log periodic antenna for jammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011538580.1A CN112803167A (en) | 2020-12-23 | 2020-12-23 | Double-frequency log periodic antenna for jammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112803167A true CN112803167A (en) | 2021-05-14 |
Family
ID=75807360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011538580.1A Pending CN112803167A (en) | 2020-12-23 | 2020-12-23 | Double-frequency log periodic antenna for jammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112803167A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1961726A1 (en) * | 1968-12-09 | 1970-06-18 | Technology For Comm Internat | Logarithmic periodic antenna |
| US20070182655A1 (en) * | 2006-02-07 | 2007-08-09 | Samsung Electronics Co., Ltd | Broad-band log-periodic dipole antenna |
| CN104064856A (en) * | 2013-03-18 | 2014-09-24 | 西安电子科技大学 | Miniaturized ultra wideband circular polarization fractal antenna |
| CN104157962A (en) * | 2014-08-12 | 2014-11-19 | 上海航天电子通讯设备研究所 | Ultra wide band miniature beam forming antenna |
| CN206180114U (en) * | 2016-11-02 | 2017-05-17 | 广州创锦通信技术有限公司 | Die cast mould wideband log periodic antenna |
| CN107611598A (en) * | 2017-07-25 | 2018-01-19 | 西安电子科技大学 | A kind of ultra wide band double-circle polarization log-periodic antenna of broad beam |
| CN207124281U (en) * | 2017-08-31 | 2018-03-20 | 华桂星 | A kind of novel elevator antenna assembly |
| CN209641828U (en) * | 2019-04-01 | 2019-11-15 | 佛山市盛夫通信设备有限公司 | A kind of wideband log periodic antenna |
-
2020
- 2020-12-23 CN CN202011538580.1A patent/CN112803167A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1961726A1 (en) * | 1968-12-09 | 1970-06-18 | Technology For Comm Internat | Logarithmic periodic antenna |
| US20070182655A1 (en) * | 2006-02-07 | 2007-08-09 | Samsung Electronics Co., Ltd | Broad-band log-periodic dipole antenna |
| CN104064856A (en) * | 2013-03-18 | 2014-09-24 | 西安电子科技大学 | Miniaturized ultra wideband circular polarization fractal antenna |
| CN104157962A (en) * | 2014-08-12 | 2014-11-19 | 上海航天电子通讯设备研究所 | Ultra wide band miniature beam forming antenna |
| CN206180114U (en) * | 2016-11-02 | 2017-05-17 | 广州创锦通信技术有限公司 | Die cast mould wideband log periodic antenna |
| CN107611598A (en) * | 2017-07-25 | 2018-01-19 | 西安电子科技大学 | A kind of ultra wide band double-circle polarization log-periodic antenna of broad beam |
| CN207124281U (en) * | 2017-08-31 | 2018-03-20 | 华桂星 | A kind of novel elevator antenna assembly |
| CN209641828U (en) * | 2019-04-01 | 2019-11-15 | 佛山市盛夫通信设备有限公司 | A kind of wideband log periodic antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107134637B (en) | Dual-frequency EBG structure and microstrip antenna based on same | |
| CN102610908A (en) | Ultra wide band four-tape circularly polarized antenna | |
| CN109728413B (en) | Antenna structure and terminal | |
| CN110911812A (en) | Dual-polarization 5G millimeter wave antenna unit and array thereof | |
| US20210050656A1 (en) | Antenna unit, antenna system and electronic device | |
| CN116247428B (en) | Millimeter wave array antenna | |
| CN202817178U (en) | Dual-frequency monopole antenna and its mobile terminal | |
| CN109802225B (en) | Microstrip filter antenna | |
| CN113178688B (en) | Hollow hexagram ultra-wideband antenna | |
| CN112803167A (en) | Double-frequency log periodic antenna for jammer | |
| CN102969567A (en) | Communication device and method for increasing antenna operation bandwidth | |
| CN212303906U (en) | Duplex high-power omnidirectional shaped antenna | |
| CN111799556A (en) | Broadband high-polarization isolated dual-linear polarization phased array antenna | |
| CN114374082A (en) | Radiating element and base station antenna | |
| KR20090130521A (en) | Dual band circularly polarized microstrip antenna using folded structure | |
| CN111082209A (en) | Low-profile planar helical antenna adopting novel feed mode | |
| CN216214131U (en) | Minimum-diameter broadband dipole omnidirectional antenna | |
| CN116505267B (en) | Ultra-wideband dual circularly polarized antenna and wireless communication device | |
| US20230275341A1 (en) | Antenna structure and wearable device having same | |
| CN215989221U (en) | Antenna device and electronic apparatus | |
| CN112510373A (en) | Log-periodic antenna for receiving front end of jammer | |
| US20180241127A1 (en) | Multi-band patch antenna module | |
| CN215221018U (en) | Laminated multi-frequency antenna | |
| CN210379412U (en) | Antenna, antenna assembly and electronic equipment | |
| CN213717060U (en) | Multi-frequency band combined antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210514 |