CN105633559A - Spaceborne air coaxial feed line log periodic dipole antenna suitable for space environment - Google Patents
Spaceborne air coaxial feed line log periodic dipole antenna suitable for space environment Download PDFInfo
- Publication number
- CN105633559A CN105633559A CN201511015915.0A CN201511015915A CN105633559A CN 105633559 A CN105633559 A CN 105633559A CN 201511015915 A CN201511015915 A CN 201511015915A CN 105633559 A CN105633559 A CN 105633559A
- Authority
- CN
- China
- Prior art keywords
- antenna
- inner conductor
- air coaxial
- spaceborne
- log periodic
- 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.)
- Granted
Links
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- 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
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
-
- 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
Landscapes
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention provides a spaceborne air coaxial feed line log periodic dipole antenna suitable for the space environment. The antenna is composed of a radiation oscillator, an antenna collection line and an air coaxial internal conductor feed line component. The antenna collection line is a metal hollow profile of which the cross section is pentagonal. The radiation oscillator and the antenna collection line are welded and fixed. The air coaxial internal conductor feed line component is composed of a metal internal conductor, an impedance transformation segment and a coaxial connector in turn. The metal internal conductor is arranged in the internal part of the antenna collection line. Impedance transformation from the metal internal conductor to the coaxial connector is realized by the impedance transformation segment. The antenna is simple in structural form and high in reliability; the formation technology of combination of the profile of the specific cross section shape and the welding oscillator is adopted to meet the design requirement of an air coaxial cavity; and a unique air coaxial component feed form is adopted so that loss of the feed line can be reduced, relatively high particle irradiation resistance of the antenna in the space can be realized, and thus the performance of the log periodic antenna is not liable to be influenced by space particle irradiation or the high and low temperature environment.
Description
Technical field
The present invention relates to satellite antenna technical field, it is specially a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment.
Background technology
Early 1960s is proposed log periodic dipole arrays, because its structure is simple, work frequency band width, excellent property and be widely used in every business scopes such as HF, VHF, the communication of uhf band, broadcast, TV. As the one of antenna, conventional log periodic dipole arrays is all be in ground handling environment, and its properity and environmental compatibility cannot meet the Working environment out of my cabin on star.
Developing project demand according to spacecraft antenna, applicant has carried out the research of spaceborne log-periodic antenna aspect, it is achieved that the first Application of this type antenna under space long lifetime, harsh environmental conditions.
Summary of the invention
For realizing the application of log periodic dipole arrays under the spaceborne environment in space, the present invention proposes a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment, it is applicable to the feed system of the satellite antennas such as all kinds of remote measurement, communication, investigation and antenna.
The technical scheme of the present invention is:
Described a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment, it is characterised in that: it is made up of radiation oscillator, antenna set zygonema, air coaxial inner conductor feeder line assembly;
Described radiation oscillator is metal section bar;
Described antenna set zygonema is cross section is pentagonal metal hollow section bar, and described pentagon is made up of rectangle and isosceles triangle, and wherein the base of isosceles triangle overlaps with rectangle, and described isosceles triangle drift angle is not more than 90 ��;
Radiation oscillator and antenna set wire bonding are fixed;
Described air coaxial inner conductor feeder line assembly is by metallic inner conductor, impedance conversion section and forms with shaft adapter; It is inner that metallic inner conductor is contained in antenna set zygonema, and does not directly contact with antenna set zygonema; Metallic inner conductor end converts section with impedance and is fixedly connected with, and impedance conversion Duan Yutong shaft adapter is fixedly connected with; Described impedance conversion section is made up of conductor in the section of conversion and conversion section medium; In metallic inner conductor, conversion section, conductor is connected with conductor in same shaft adapter; Impedance conversion section realizes metallic inner conductor and converts to the impedance of same shaft adapter.
Further preferred version, described a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment, it is characterized in that: metallic inner conductor is segmental structure, each section of metallic inner conductor end sides is by realizing between nonmetal Supporting Media and antenna set zygonema supporting.
Further preferred version, described a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment, it is characterised in that: nonmetal Supporting Media is that polyimide supports block.
Further preferred version, described a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment, it is characterized in that: metallic inner conductor is the round section bar of aluminium alloy, according to antenna impedance match requirement, obtain metallic inner conductor diameter by simulation software optimization.
Further preferred version, described a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment, it is characterised in that: radiation oscillator and antenna set zygonema are aluminum alloy material.
Further preferred version, described a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment, it is characterised in that: conversion section medium adopts polyimide material.
Useful effect
The spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment that the present invention proposes, achieves higher antenna electrical performance by limited size; Antenna structure formation is simple, reliability height; Adopt the aluminum alloy materials of specific sectional shape section bar to combine welding oscillator moulding process, not only meet the design requirements of air coaxial cavity, also achieve good firm anharmonic ratio requirement; Adopt unique air coaxial module feed form, reduce feeder line loss, achieve the anti-particle irradiation performance that antenna is higher in space simultaneously, the performance of log-periodic antenna is made not to be subject to space particle irradiation and high and low temperature environment impact, under the envrionment conditions that satellite platform is harsh out of my cabin, performance of antenna still can meet technology and service requirements.
The additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage from accompanying drawing below combining to the description of embodiment becoming obviously and it should be readily understood that wherein:
Fig. 1: three kinds of dual polarization log periodic dipole arrays set lines and radiation oscillator form contrast schematic diagram;
Fig. 2: radiation oscillator and the fixing schematic diagram of antenna set wire bonding;
Wherein: 1, radiate oscillator welding joint; 2, oscillator is radiated; 3, antenna set zygonema;
Fig. 3: air coaxial inner conductor feeder line component diagram;
Wherein: 4, metallic inner conductor; 5, impedance conversion section; 6, standard coaxial joint.
Embodiment
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish. It is exemplary below by the embodiment being described with reference to the drawings, it is intended to for explaining the present invention, and limitation of the present invention can not be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", it is based on orientation shown in the drawings or position relation that the orientation of the instruction such as " counterclockwise " or position are closed, it is only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device referred to or element must have specific orientation, with specific orientation structure and operation, therefore limitation of the present invention can not be interpreted as.
By radiating, oscillator 2, antenna set zygonema 3 and air coaxial inner conductor feeder line assembly form the spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment in the present embodiment. Air coaxial inner conductor feeder line assembly is made up of metallic inner conductor 4, impedance conversion section 5 and standard coaxial joint 6. Wherein radiation oscillator 2, antenna set zygonema 3, metallic inner conductor 4 adopt metal aluminum alloy material, and all the other parts supported use polyimide material to make.
Conventional log periodic dipole arrays, the many employing circles of its set line or rectangular pipe structure, the radiation oscillator of antenna is connect by spiral shell through the outer wall of set line or rivets fixing. Owing to the present embodiment is air coaxial supply line log periodic dipole arrays, utilize coaxial line principle, adopt antenna set zygonema as the outer conductor of coaxial supply line, in order to meet the coaxial feeder line structure form of air, must use with antenna set zygonema with the aluminium of material as the interior conductor of coaxial supply line, require to ensure that antenna set zygonema internal cavity is continuous, complete simultaneously. So in the present embodiment, radiation oscillator is designed to be welded on the sidewall of antenna set zygonema, as shown in Figure 2, therefore, conventional tubular cross section set line cannot meet design requirement.
In addition, antenna is for realizing dual polarization, it is necessary to adopt two secondary orthogonal linear polarization log periodic dipole arrays, and four set line symmetries in 90 �� of antenna are installed. For under spaceborne condition in guarantee space environment, the matched performance of antenna broadband, two set line top spacing that antenna is relative must ensure certain compactness, but the rectangular pipe of routine and round tubular set line obviously do not possess this condition, as shown in (a) in Fig. 1 and (b).
As shown in Fig. 1 (c), antenna set zygonema to be cross section be pentagon in the present embodiment, wall thickness are the metal hollow section bar of 1mm, described pentagon is made up of rectangle and isosceles triangle, wherein the base of isosceles triangle is with rectangle while overlap, and described isosceles triangle drift angle is not more than 90 ��. Meet antenna structure and requirement on electric performance like this, both can ensure to radiate the welding requirement of oscillator, have and can meet compact set line top required distance.
Antenna set zygonema not only as the welding strut member of radiation oscillator, assume responsibility for the responsibility as coaxial supply line outer conductor simultaneously. It is inner that metallic inner conductor is contained in antenna set zygonema, and not with antenna set zygonema short circuit (directly contacting). Conventional coaxial inner conductor and medium are circular configuration, and in the present embodiment adopt be pentagon air dielectric cavity, the interior conductor of coaxial supply line still uses the round section bar of aluminium alloy, so needing according to antenna impedance match requirement, obtain metallic inner conductor diameter by simulation software optimization. Simultaneously, when antenna frequency band is wider, whole height is longer, for ensureing the structural stability of metallic inner conductor in antenna set zygonema cavity and good electric property, metallic inner conductor adopts segmental structure design, supported by polyimide each section of metallic inner conductor end sides and realize supporting between block and antenna set zygonema, and the length of each section need to carry out simulation optimization according to the electric matched performance of antenna.
Interior conductor is connected on the set line on opposite by wire jumper by metallic inner conductor upper end, the lower end of metallic inner conductor converts section with impedance and is fixedly connected with, impedance conversion section is fixedly connected with standard coaxial joint, as shown in Figure 3, effect is the RF coaxial interface (such as SMA, TNC etc.) that nonstandard air coaxial supply line converts to standard. Described impedance conversion section is made up of conductor in the section of conversion and conversion section medium, and conversion section medium adopts polyimide material. In metallic inner conductor, conversion section, conductor is connected with conductor in same shaft adapter; By calculating or design of Simulation impedance conversion section, it is achieved air coaxial supply line to be transitted to the coaxial port of standard 50 ��.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is exemplary, can not being interpreted as limitation of the present invention, above-described embodiment can be changed when not departing from principle and the objective of the present invention, revises, replace and modification by the those of ordinary skill of this area within the scope of the invention.
Claims (6)
1. one kind is applicable to the spaceborne air coaxial supply line log periodic dipole arrays of space environment, it is characterised in that: it is made up of radiation oscillator, antenna set zygonema, air coaxial inner conductor feeder line assembly;
Described radiation oscillator is metal section bar;
Described antenna set zygonema is cross section is pentagonal metal hollow section bar, and described pentagon is made up of rectangle and isosceles triangle, and wherein the base of isosceles triangle overlaps with rectangle, and described isosceles triangle drift angle is not more than 90 ��;
Radiation oscillator and antenna set wire bonding are fixed;
Described air coaxial inner conductor feeder line assembly is by metallic inner conductor, impedance conversion section and forms with shaft adapter; It is inner that metallic inner conductor is contained in antenna set zygonema, and does not directly contact with antenna set zygonema; Metallic inner conductor end converts section with impedance and is fixedly connected with, and impedance conversion Duan Yutong shaft adapter is fixedly connected with; Described impedance conversion section is made up of conductor in the section of conversion and conversion section medium; In metallic inner conductor, conversion section, conductor is connected with conductor in same shaft adapter; Impedance conversion section realizes metallic inner conductor and converts to the impedance of same shaft adapter.
2. a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment according to claim 1, it is characterized in that: metallic inner conductor is segmental structure, each section of metallic inner conductor end sides is by realizing between nonmetal Supporting Media and antenna set zygonema supporting.
3. a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment according to claim 2, it is characterised in that: nonmetal Supporting Media is that polyimide supports block.
4. a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment according to Claims 2 or 3, it is characterized in that: metallic inner conductor is the round section bar of aluminium alloy, according to antenna impedance match requirement, obtain metallic inner conductor diameter by simulation software optimization.
5. a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment according to claim 4, it is characterised in that: radiation oscillator and antenna set zygonema are aluminum alloy material.
6. a kind of spaceborne air coaxial supply line log periodic dipole arrays being applicable to space environment according to claim 5, it is characterised in that: conversion section medium adopts polyimide material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015915.0A CN105633559B (en) | 2015-12-30 | 2015-12-30 | Suitable for the spaceborne air coaxial feeder log periodic dipole arrays of space environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015915.0A CN105633559B (en) | 2015-12-30 | 2015-12-30 | Suitable for the spaceborne air coaxial feeder log periodic dipole arrays of space environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105633559A true CN105633559A (en) | 2016-06-01 |
| CN105633559B CN105633559B (en) | 2018-05-04 |
Family
ID=56048253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511015915.0A Active CN105633559B (en) | 2015-12-30 | 2015-12-30 | Suitable for the spaceborne air coaxial feeder log periodic dipole arrays of space environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105633559B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH088637A (en) * | 1994-06-22 | 1996-01-12 | Toyota Motor Corp | On-vehicle composite antenna |
| EP1923955A1 (en) * | 2006-11-16 | 2008-05-21 | TDK Corporation | Log period dipole array (LPDA) antenna and method of making |
| CN103259077A (en) * | 2012-02-16 | 2013-08-21 | 中国科学院国家天文台 | Broadband double circular polarization feed source of radio heliograph |
| CN204130691U (en) * | 2014-07-24 | 2015-01-28 | 福建省泉州华鸿通讯有限公司 | A kind of WiMax antenna broadband oscillator |
| CN104600431A (en) * | 2014-12-25 | 2015-05-06 | 中国电子科技集团公司第五十四研究所 | Wide band feed source |
-
2015
- 2015-12-30 CN CN201511015915.0A patent/CN105633559B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH088637A (en) * | 1994-06-22 | 1996-01-12 | Toyota Motor Corp | On-vehicle composite antenna |
| EP1923955A1 (en) * | 2006-11-16 | 2008-05-21 | TDK Corporation | Log period dipole array (LPDA) antenna and method of making |
| CN103259077A (en) * | 2012-02-16 | 2013-08-21 | 中国科学院国家天文台 | Broadband double circular polarization feed source of radio heliograph |
| CN204130691U (en) * | 2014-07-24 | 2015-01-28 | 福建省泉州华鸿通讯有限公司 | A kind of WiMax antenna broadband oscillator |
| CN104600431A (en) * | 2014-12-25 | 2015-05-06 | 中国电子科技集团公司第五十四研究所 | Wide band feed source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105633559B (en) | 2018-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103779658B (en) | Low section multiband dual polarized antenna | |
| US8669907B2 (en) | Ultra-wideband miniaturized omnidirectional antennas via multi-mode three-dimensional (3-D) traveling-wave (TW) | |
| US8199064B2 (en) | Omni directional broadband coplanar antenna element | |
| US10116056B2 (en) | Antenna arrangement and connector for an antenna arrangement | |
| CN102800927A (en) | Miniaturized ultra-wideband multifunction antenna via multi-mode traveling-waves (tw) | |
| CN102891374B (en) | Tri-band integrated antenna | |
| WO2008023800A1 (en) | Antenna device | |
| CN104300201A (en) | Antenna element for wireless communication | |
| US8068066B2 (en) | X-band turnstile antenna | |
| CN101246988B (en) | Ultra-wide band short circuit doublet antenna | |
| CN105633542B (en) | Broadband open waveguide antenna | |
| CN105048078A (en) | Common-caliber multi-frequency-band wide-beam circular-polarized antenna | |
| CN114465021A (en) | Multi-polarization combined antenna | |
| CN105633584A (en) | Log periodic feed source array based on spaceborne multi-beam antenna space three-dimensional structure layout | |
| CN203589207U (en) | Low-profile and dual-polarization low-frequency radiation unit, antenna array, antenna device and antenna | |
| CN105514579A (en) | C wave band broadband vertical polarized sleeve antenna for restricted space installation | |
| CN109742519B (en) | Broadband spiral combination multi-network antenna | |
| CN107834170B (en) | Foldable balun dipole antenna with adjustable broadband frequency band | |
| CN105633559A (en) | Spaceborne air coaxial feed line log periodic dipole antenna suitable for space environment | |
| CN205811039U (en) | A kind of Miniaturized multiband spiral navigation antenna | |
| CN105703055A (en) | Airborne response antenna | |
| US7692597B2 (en) | Multi-feed dipole antenna and method | |
| US20080231516A1 (en) | Multi-frequency antenna and an electric device thereof | |
| US7420521B2 (en) | Wideband segmented dipole antenna | |
| CN207559044U (en) | Super-wide band high-gain omnidirectional antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |