CN103956582A - Small-caliber and large-flare-angle corrugated horn feed source - Google Patents
Small-caliber and large-flare-angle corrugated horn feed source Download PDFInfo
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- CN103956582A CN103956582A CN201410182040.2A CN201410182040A CN103956582A CN 103956582 A CN103956582 A CN 103956582A CN 201410182040 A CN201410182040 A CN 201410182040A CN 103956582 A CN103956582 A CN 103956582A
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- loudspeaker
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Abstract
The invention discloses a small-caliber and large-flare-angle corrugated horn feed source. The small-caliber and large-flare-angle corrugated horn feed source comprises a transmission section, modular conversion sections, transition sections and a horn radiation section, wherein the transmission section and the horn radiation section are connected; the modular conversion sections and the transition sections are connected; the horn radiation section and the modular conversion sections are fused into a whole. The small-caliber and large-flare-angle corrugated horn feed source changes the corrugated structure of a corrugated horn, a corrugated groove of the large-flare-angle horn is changed to be an axial groove, and the horn corrugation and the horn axis are made to be parallel, so that the problem that demolding can not be achieved in the machining process of the corrugation of the large-flare-angle corrugated horn, and volume production of horns is convenient. Meanwhile, the index of the characteristic of the corrugated horn is ensured. The equalization characteristic and the phase center stability of the horn are optimized. A partial feed reflecting surface antenna with the corrugated horn as the feed source has the better gains.
Description
Technical field
The present invention relates to Electromagnetic Fields & Magnetic Waves field, especially a kind of small-bore the big angle ripple trumpet feed.
Background technology
Reflector antenna is the antenna with high-gain, is therefore widely used at distance radio communication and radar system.Widely used Rotational Symmetry parabolic antenna simplicity of design, function admirable, but due to the reflex of reflecting surface thereby cause the stationary wave characteristic of Feed Horn to worsen, stopping of feed system and supporting construction also can make gain decline, and cross polarization level raises.As the feed of offset-fed reflector antenna, require feed directional diagram to approach circle symmetrical, Sidelobe and back lobe, have stable phase center, and size is as much as possible little.General employing horn antenna, and in horn antenna, corrugated horn is in the characteristic such as gradeization of main pole, there is good performance the aspects such as standing-wave ratio characteristic and cross polarization characteristics.And the directional diagram of corrugated horn has good circular symmetry, and there are lower secondary lobe and back lobe.Because the ripple of corrugated horn make the E face of loudspeaker far-field pattern and the pattern characteristics of H face almost consistent, thereby reduced secondary lobe.And the lobe width of the big angle ripple trumpet is not subject to the impact of loudspeaker caliber size only relevant with the size of horn flare angle.Therefore can make loudspeaker miniaturization.And corrugated horn is greater than 40 while spending at half angle, it is vertical with loudspeaker internal face that wave groove is processed into conventionally, but the processing of corrugated horn ripple is more difficult.General processing method is divided into mechanical processing method, electrotyping forming method, electroforming-machining moulding method, casting.General corrugated horn adopts mechanical processing method, and the loudspeaker of millimeter wavelength generally adopt electrotyping forming method.Frequency is in electroforming for corrugated horn-machining moulding method of 100GHz.For the method for machining, require loudspeaker segmental machining, and require every section all perpendicular to loudspeaker axis.Produce in batches by the method for mould compacting loudspeaker if want, in process of production cannot the demoulding.For this problem, a kind of small-bore the big angle ripple trumpet feed of special proposition.
Summary of the invention
For the problems referred to above, the present invention is intended to solve the problem that the big angle ripple trumpet ripple cannot the demoulding in the course of processing, so that loudspeaker batch production.
For realizing this technical purpose, the solution of the present invention is:
A kind of small-bore the big angle ripple trumpet feed, comprises span line, modular transformation section, changeover portion and loudspeaker radiation section, and described span line is connected with loudspeaker radiation section, and described modular transformation section is connected with changeover portion, and described loudspeaker radiation section and modular transformation section combine together.
As preferably, described span line adopts circular waveguide.
As preferably, described modular transformation section is provided with the waveguide of light wall and circular cone ripple.
As there being choosing, in described changeover portion, be provided with circular cone light wall section and the loudspeaker with wave groove, the half angle of loudspeaker is 44.7 °, is large angle loudspeaker, and loudspeaker bore is 154.4mm, depth is 43.7mm, loudspeaker adopt axial cutting mode, and fluting number is four, and two cell walls and the loudspeaker axle of each wave groove have certain angle, wave groove bottom width is all identical, and the feed mouth diameter of loudspeaker is 54mm.
The present invention has changed the ripple struction of corrugated horn, change the wave groove of large angle loudspeaker into axial groove, make the loudspeaker ripple parallel with loudspeaker axis, thereby solved the problem that the big angle ripple trumpet ripple cannot the demoulding in the course of processing, so that loudspeaker batch production.Also ensured the characteristic index of corrugated horn simultaneously.Also optimized characteristic such as gradeization and the phase center stability of loudspeaker, the offset-fed reflector antenna taking it as feed also has good gain simultaneously simultaneously.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is performance plot such as gradeization of the present invention;
Fig. 3 is phase center stability diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
As shown in Figure 1, the small-bore the big angle ripple trumpet feed of one of the embodiment of the present invention, comprise span line 1, modular transformation section 2, changeover portion 3 and loudspeaker radiation section 4, described span line 1 is connected with loudspeaker radiation section 4, described modular transformation section 2 is connected with changeover portion 3, and described loudspeaker radiation section 4 combines together with modular transformation section 2.
As preferably, described span line 1 adopts circular waveguide.
As preferably, described modular transformation section 2 is provided with the waveguide of light wall and circular cone ripple.
As there being choosing, in described changeover portion 3, be provided with circular cone light wall section and the loudspeaker with wave groove, the half angle of loudspeaker is 44.7 °, is large angle loudspeaker, and loudspeaker bore is 154.4mm, depth is 43.7mm, loudspeaker adopt axial cutting mode, and fluting number is four, and two cell walls and the loudspeaker axle of each wave groove have certain angle, wave groove bottom width is all identical, and the feed mouth diameter of loudspeaker is 54mm.
Operation principle of the present invention is as follows: be grouped into by waveguide part and flare, waveguide part is by circular waveguide and the excessive waveguide of taper and form.Loudspeaker part is by a truncated cone light wall section and forming with the loudspeaker of wave groove.Because the processing of large angle loudspeaker is more difficult, so modular transformation section 2 and loudspeaker radiation section 4 are combined together, (loudspeaker radiation section 4 is mainly used to determine the main mould of Conical Corrugated Horn
the main polarization characteristic of mould).The general circular waveguide of selecting of span line 1 ensures the main mould of circular waveguide
mould, the throat of large angle loudspeaker is a bit of (this is a bit of is modular transformation section 2) adding between the waveguide of light wall and circular cone bellows segment, it makes pattern in transfer process, can not cause significant mismatch, also can not cause the remarkable excitation of inessential mould simultaneously.Especially produce at front end
mould.When light wall waveguide transition is during to ripple circular cone, produce
mould and
mould, both mix generation
mould.Obtain by the number of degrees of selecting rational groove depth and groove width and subtended angle
with
suitable mould ratio, improve the performance of loudspeaker.
The above; it is only preferred embodiment of the present invention; not in order to limit the present invention, any trickle amendment that every foundation technical spirit of the present invention is done above embodiment, be equal to and replace and improve, within all should being included in the protection range of technical solution of the present invention.
Claims (2)
1. a small-bore the big angle ripple trumpet feed, comprise span line, modular transformation section, changeover portion and loudspeaker radiation section, it is characterized in that: described span line is connected with loudspeaker radiation section, described modular transformation section is connected with changeover portion, described loudspeaker radiation section and modular transformation section combine together, described modular transformation section is provided with the waveguide of light wall and circular cone ripple, and described span line adopts circular waveguide.
2. the small-bore the big angle ripple trumpet feed of one according to claim 1, it is characterized in that: in described changeover portion, be provided with circular cone light wall section and the loudspeaker with wave groove, the half angle of loudspeaker is 44.7 °, is large angle loudspeaker, and loudspeaker bore is 154.4mm, depth is 43.7mm, loudspeaker adopt axial cutting mode, and fluting number is four, and two cell walls and the loudspeaker axle of each wave groove have certain angle, wave groove bottom width is all identical, and the feed mouth diameter of loudspeaker is 54mm.
Priority Applications (1)
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CN201410182040.2A CN103956582A (en) | 2014-05-04 | 2014-05-04 | Small-caliber and large-flare-angle corrugated horn feed source |
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CN201410182040.2A CN103956582A (en) | 2014-05-04 | 2014-05-04 | Small-caliber and large-flare-angle corrugated horn feed source |
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CN201410182040.2A Pending CN103956582A (en) | 2014-05-04 | 2014-05-04 | Small-caliber and large-flare-angle corrugated horn feed source |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107240777A (en) * | 2017-06-12 | 2017-10-10 | 重庆邮电大学 | Two-directional corrugations Terahertz electromagnetic horn |
CN107634344A (en) * | 2017-09-22 | 2018-01-26 | 上海航天测控通信研究所 | A kind of Xiao Zhang's horn shaped aerial with axial ripple changeover portion |
CN107681276A (en) * | 2017-08-12 | 2018-02-09 | 西安电子科技大学 | A kind of multiband ring loading groove the big angle ripple trumpet and satellite communication system |
CN108287272A (en) * | 2018-01-25 | 2018-07-17 | 电子科技大学 | A kind of millimeter wave full frequency band and THz wave Compact Range antenna darkroom |
CN109149116A (en) * | 2018-08-23 | 2019-01-04 | 西安空间无线电技术研究所 | A kind of Novel Bipolar electromagnetic horn |
CN109755749A (en) * | 2019-01-17 | 2019-05-14 | 西安电子科技大学 | A kind of skewed slot ripple multimode feed loudspeaker applied to single offset reflector antenna |
CN109786929A (en) * | 2019-03-08 | 2019-05-21 | 北京航空航天大学 | A kind of wave groove quadruple ridged horn feed |
CN111987476A (en) * | 2020-08-04 | 2020-11-24 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | Ka frequency band polarization twistable dual-polarization corrugated horn feed source |
Citations (3)
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US4622559A (en) * | 1984-04-12 | 1986-11-11 | Canadian Patents & Development Limited | Paraboloid reflector antenna feed having a flange with tapered corrugations |
CN2896561Y (en) * | 2006-04-19 | 2007-05-02 | 启碁科技股份有限公司 | Batterfly-shape antenna feed |
CN101083356A (en) * | 2006-06-03 | 2007-12-05 | 无锡华信雷达工程有限责任公司 | C/Ku-Band shared wideband reception corrugated horn |
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2014
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US4622559A (en) * | 1984-04-12 | 1986-11-11 | Canadian Patents & Development Limited | Paraboloid reflector antenna feed having a flange with tapered corrugations |
CN2896561Y (en) * | 2006-04-19 | 2007-05-02 | 启碁科技股份有限公司 | Batterfly-shape antenna feed |
CN101083356A (en) * | 2006-06-03 | 2007-12-05 | 无锡华信雷达工程有限责任公司 | C/Ku-Band shared wideband reception corrugated horn |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107240777A (en) * | 2017-06-12 | 2017-10-10 | 重庆邮电大学 | Two-directional corrugations Terahertz electromagnetic horn |
CN107240777B (en) * | 2017-06-12 | 2020-03-17 | 重庆邮电大学 | Bidirectional corrugated terahertz horn antenna |
CN107681276A (en) * | 2017-08-12 | 2018-02-09 | 西安电子科技大学 | A kind of multiband ring loading groove the big angle ripple trumpet and satellite communication system |
CN107681276B (en) * | 2017-08-12 | 2021-06-15 | 西安电子科技大学 | Multi-frequency-band ring loading groove large-opening-angle corrugated horn and satellite communication system |
CN107634344A (en) * | 2017-09-22 | 2018-01-26 | 上海航天测控通信研究所 | A kind of Xiao Zhang's horn shaped aerial with axial ripple changeover portion |
CN107634344B (en) * | 2017-09-22 | 2020-03-17 | 上海航天测控通信研究所 | Small-opening-angle horn shaped antenna with axial corrugated transition section |
CN108287272A (en) * | 2018-01-25 | 2018-07-17 | 电子科技大学 | A kind of millimeter wave full frequency band and THz wave Compact Range antenna darkroom |
CN109149116A (en) * | 2018-08-23 | 2019-01-04 | 西安空间无线电技术研究所 | A kind of Novel Bipolar electromagnetic horn |
CN109149116B (en) * | 2018-08-23 | 2020-06-09 | 西安空间无线电技术研究所 | Novel dual-polarized horn antenna |
CN109755749A (en) * | 2019-01-17 | 2019-05-14 | 西安电子科技大学 | A kind of skewed slot ripple multimode feed loudspeaker applied to single offset reflector antenna |
CN109786929A (en) * | 2019-03-08 | 2019-05-21 | 北京航空航天大学 | A kind of wave groove quadruple ridged horn feed |
CN111987476A (en) * | 2020-08-04 | 2020-11-24 | 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) | Ka frequency band polarization twistable dual-polarization corrugated horn feed source |
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Application publication date: 20140730 |
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