CN206211019U - Compact-folded monopulse antenna - Google Patents

Abstract

The utility model discloses compact-folded monopulse antenna, is related to monopulse antenna technical field, and it includes：Two folded antenna units, sum-difference network and antenna houses, folded antenna unit is symmetricly set on the inwall of antenna house, sum-difference network is arranged on antenna house bottom, antenna house includes the barrel-shaped cover of medium, two antenna slots, antenna slot is opened in inside the barrel-shaped cover of medium respectively, and the folded antenna unit is provided with inside antenna slot, and it is loose that the utility model solves structure in the prior art, quality is big, and zero deeply spends inadequate technical problem.

Description

Compact-folded monopulse antenna

Technical field

The utility model is related to monopulse antenna technical field, more particularly to compact-folded monopulse antenna.

Background technology

Traditional monopulse antenna physical dimension for being applied to rocket-launching battery is huge, carries and installs inconvenience, due to whole Antenna is located at launching tube port top, and symmetry is deteriorated, therefore antenna zero is deep than shallower, and process consistency is poor, back lobe gain It is too high, have a strong impact on the performance of monopulse antenna；

Authorization Notice No. is the patent of the B of CN 102354799, and it includes a pair of knot radiation patch, medium substrate, delays Line and loading resistor；Wherein knot radiation patch is located at the one side of medium substrate, and delay line, loading resistor are located at medium substrate Another side；Loading resistor is distributed on delay line；The close the inner of two knot radiation patch is the feed end of bow tie pulse antenna, The other end is the radiation tail end of bow tie pulse antenna；Some delay lines are located at the medium base that two knot radiation patch are included In the region of back, the delay line one end in each region is connected by the via that metallizes with the radiation tail end of antenna, another End intersects at the convergent point of delay line with other delay line ends in same region, and the delay line in two regions passes through convergent point through connection Line is connected, and the patent has carried out the resistor loaded with communicated delay lines to bow tie pulse antenna, in effectively reducing radiation waveform The amplitude of tail pulse, the broadening impedance bandwidth of antenna, reduces unfavorable shadow of the loading resistor to pulse antenna radiation efficiency Ring, but not solve existing antenna zero deep than shallower for the patent, and process consistency is poor, and the too high technology of back lobe gain is asked Topic.

Utility model content

The purpose of this utility model is to provide compact-folded monopulse antenna, and it is loose to solve structure in the prior art, matter Amount is big, and zero deeply spends inadequate technical problem.

Compact-folded monopulse antenna, including：Two folded antenna units, the sum-difference network of annulus tubbiness and annulus tubbiness Antenna house, the folded antenna unit is symmetricly set on the cover pars intramuralis of antenna house, and the sum-difference network is arranged on antenna house Bottom, the antenna house includes the barrel-shaped cover of medium, two antenna slots, and the antenna slot is opened in inside the barrel-shaped cover of medium respectively, The folded antenna unit is installed inside the antenna slot.

On the basis of above-mentioned technical proposal, the utility model can also do following improvement：

Further, the folded antenna unit includes radiation metal level, dielectric layer and metal transmission network network layers, the spoke Metal level is penetrated positioned at dielectric layer top, the metal transmission network network layers are located at dielectric layer lower section.

Further, the radiation metal level includes upper rectangular radiation metal level, middle rectangular radiation metal level and lower rectangle Radiation metal level, the upper rectangular radiation metal level lower side to be formed along with middle rectangular radiation metal level upper side edge along intersecting to converge First obtuse angle, the lower rectangular radiation metal level upper side edge to form the along with middle rectangular radiation metal level lower side along intersecting to converge Two obtuse angles.

Further, gap is offered in the middle part of the middle rectangular radiation metal level.

Further, the dielectric layer includes upper dielectric layer, dielectric layer and lower dielectric layer, the downside of the upper dielectric layer The upper side edge of edge and dielectric layer along intersect to converge to form the 3rd obtuse angle, the upper side edge edge of the lower dielectric layer and dielectric layer Lower side converge to form the 4th obtuse angle along intersecting, the angle at first obtuse angle is communicated with the angle at the 3rd obtuse angle, described the The angle at two obtuse angles is identical with the angle at the 4th obtuse angle, and being easy for folded antenna unit using this beneficial effect for walking forms one Change.

Further, the sum-difference network includes two-layer annular metallic layer, two-layer annular dielectric layer and curved metal layer, institute State annular dielectric layer and be located at curved metal layer top, lower section respectively, the annular metallic layer is located at the annular dielectric layer respectively Outside, curved metal layer be disposed with two inputs on annular microstrip line, and curved metal layer for arc joins end to end Port and output port and difference output port.

Further, the metal transmission network network layers include upper microstrip line, middle microstrip line and lower microstrip line, the upper micro-strip Line, middle microstrip line and lower microstrip line join end to end into hook-shaped, and across the gap, the lower microstrip line passes through the middle microstrip line Coaxial cable is connected with the input port of the sum-difference network.

The beneficial effects of the utility model：

Monopulse antenna is divided into folded doublet unit, annulus tubbiness sum-difference network and annulus tubbiness day by the utility model Irdome, so enables to antenna element, sum-difference network and antenna house fully integratedization；The utility model significantly reduces antenna The thickness of cover, while realizing, antenna is conformal with antenna house, physical dimension section gathers, and quality is small, is easy to carry and installs；This reality With new zero depth for significantly improving monopulse antenna difference beam in broad frequency range less than -20dB and beam gain (representative value More than 6dB)；The utility model is reduced and beam side lobe amplitude.

Brief description of the drawings

In order to illustrate more clearly of the utility model specific embodiment or technical scheme of the prior art, below will be right The accompanying drawing to be used needed for specific embodiment or description of the prior art is briefly described, it should be apparent that, describe below In accompanying drawing be some implementation methods of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the compact-folded monopulse antenna described in the utility model specific embodiment；

Fig. 2 is that the folded antenna cellular construction of the compact-folded monopulse antenna described in the utility model specific embodiment shows It is intended to；

Fig. 3 is the sum-difference network sectional view of the compact-folded monopulse antenna described in the utility model specific embodiment；

Fig. 4 is that the curved metal Rotating fields of the compact-folded monopulse antenna described in the utility model specific embodiment are illustrated Figure；

Fig. 5 is the metal feeding network Rotating fields of the compact-folded monopulse antenna described in the utility model specific embodiment Schematic diagram；

Reference：

1- folded antenna units；2- sum-difference networks；3- antenna houses；The barrel-shaped cover of 4- media；5- antenna slots；6- radiates metal Layer；7- dielectric layers；8- metal transmission network network layers；The upper rectangular radiation metal levels of 9-；Rectangular radiation metal level in 10-；Rectangle under 11- Radiation metal level；The obtuse angles of 12- first；The obtuse angles of 13- second；14- gaps；The upper dielectric layers of 15-；16- dielectric layers；Medium under 17- Layer；The obtuse angles of 18- the 3rd；The obtuse angles of 19- the 4th；20- annular metallic layers；21- annular dielectric layers；22- curved metals layer；23- is input into Port；24- differs from output port；25- and output port；The upper microstrip lines of 26-；Microstrip line in 27-；Microstrip line under 28-.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, this The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to illustrate in description of the present utility model, term " first " and " second " are only used for describing purpose, and It is not intended that indicating or implying relative importance.

, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Fig. 1 is the front view of the compact-folded monopulse antenna described in the utility model specific embodiment.

As shown in figure 1, compact-folded monopulse antenna provided by the utility model, including：Two folded antenna units 1st, the antenna house 3 of the sum-difference network 2 of annulus tubbiness and annulus tubbiness, the folded antenna unit 1 is symmetricly set on antenna house 3 Cover pars intramuralis, is placed by symmetrical annular, and zero deep index is less than -20dB；The sum-difference network 2 is arranged on antenna house bottom, institute Stating antenna house 3 includes medium 4, two antenna slots 5 of barrel-shaped cover, and the antenna slot 5 is opened in inside the barrel-shaped cover 4 of medium respectively, institute State and the folded antenna unit 1 is installed inside antenna slot 5, be arranged on folded antenna unit 1 in antenna slot 5 by the utility model Portion, can not only so ensure the Stability Analysis of Structures of folded antenna unit 1, it is ensured that the stability of folded antenna unit 1, Er Qietong The symmetrical antenna unit of antenna slot 5 is crossed, antenna element bandwidth of operation is ensure that more than more than 100MHZ, standing wave is below 1.5

Further, as shown in Fig. 2 the folded antenna unit 1 includes radiation metal level 6, dielectric layer 7 and metal feed Internet 8, the radiation metal level 6 is located at the top of dielectric layer 7, and the metal transmission network network layers 8 are located at the lower section of dielectric layer 7.

Further, as shown in Fig. 2 the radiation metal level 6 includes upper rectangular radiation metal level 9, middle rectangular radiation gold Category layer 10 and lower rectangular radiation metal level 11, the upper lower side of rectangular radiation metal level 9 edge and middle rectangular radiation metal level 10 Upper side edge converges to form the first obtuse angle 12 along intersecting, the lower upper side edge of rectangular radiation metal level 11 along and middle rectangular radiation metal 10 lower side of layer converge to form the second obtuse angle 13 along intersecting.

Wherein, the middle part of the middle rectangular radiation metal level 10 offers gap 14, the gap 14 can for U-shaped or Other shapes.

Further, the dielectric layer 7 includes upper dielectric layer 15, dielectric layer 16 and lower dielectric layer 17, the upper medium The lower side of layer 15 along with the upper side edge of dielectric layer 16 along intersecting to converge to form the 3rd obtuse angle 18, the lower dielectric layer 17 it is upper Side intersects to converge to form the 4th obtuse angle 19 along the lower side edge with dielectric layer 16, the angle and the 3rd at first obtuse angle 12 The angle at obtuse angle 18 is identical, and the angle at second obtuse angle 13 is identical with the angle at the 4th obtuse angle 19.

Further, as shown in Figure 3-4, the sum-difference network 2 includes two-layer annular metallic layer 20, two-layer annular dielectric layer 21 and curved metal layer 22, the annular dielectric layer 21 respectively be located at curved metal layer 22 top, lower section, the annular metallic layer 20 are located at the outside of the annular dielectric layer 21 respectively, and the curved metal layer 22 joins end to end annular microstrip line, and arc for arc Two input ports 23 and output port 25 and difference output port 24 are disposed with shape metal level, the utility model passes through Annular strip line sum-difference network is installed in antenna house bottom, antenna and beam gain is significantly improved.

Further, as shown in figure 5, the metal transmission network network layers 8 include upper microstrip line 26, middle microstrip line 27 and under it is micro- Band line 28, the upper microstrip line 26, middle microstrip line 27 and lower microstrip line 28 join end to end into it is hook-shaped, the middle microstrip line 27 across The gap 14, the lower microstrip line 28 is connected by coaxial cable with the input port 23 of the sum-difference network 2.

Finally it should be noted that：Various embodiments above is only used to illustrate the technical solution of the utility model, rather than it is limited System；Although being described in detail to the utility model with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole Technical characteristic carries out equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims (7)

1. compact-folded monopulse antenna, it is characterised in that including：Two folded antenna units, the sum-difference networks of annulus tubbiness With the antenna house of annulus tubbiness, the folded antenna unit is symmetricly set on the cover pars intramuralis of antenna house, and the sum-difference network sets Put in antenna house bottom, the antenna house includes the barrel-shaped cover of medium, two antenna slots, the antenna slot is opened in medium bucket respectively Inside shape cover, the folded antenna unit is installed inside the antenna slot.

2. compact-folded monopulse antenna according to claim 1, it is characterised in that the folded antenna unit includes spoke Metal level, dielectric layer and metal transmission network network layers are penetrated, the radiation metal level is located at dielectric layer top, the metal feeding network Layer is located at dielectric layer lower section.

3. compact-folded monopulse antenna according to claim 2, it is characterised in that the radiation metal level includes upper square Shape radiation metal level, middle rectangular radiation metal level and lower rectangular radiation metal level, the upper rectangular radiation metal level lower side edge With middle rectangular radiation metal level upper side edge along intersect to converge to form the first obtuse angle, the lower rectangular radiation metal level upper side edge edge with Middle rectangular radiation metal level lower side converges to form the second obtuse angle along intersecting.

4. compact-folded monopulse antenna according to claim 3, it is characterised in that the middle rectangular radiation metal level Middle part offers gap.

5. compact-folded monopulse antenna according to claim 4, it is characterised in that the dielectric layer includes upper medium Layer, dielectric layer and lower dielectric layer, the lower side of the upper dielectric layer to be formed along the upper side edge with dielectric layer along intersecting to converge 3rd obtuse angle, the upper side edge of the lower dielectric layer intersects to converge to form the 4th obtuse angle along the lower side edge with dielectric layer, described The angle at the first obtuse angle is communicated with the angle at the 3rd obtuse angle, and the angle at second obtuse angle is identical with the angle at the 4th obtuse angle.

6. compact-folded monopulse antenna according to claim 5, it is characterised in that the sum-difference network includes two-layer ring Shape metal level, two-layer annular dielectric layer and curved metal layer, the annular dielectric layer respectively be located at curved metal layer top, under Side, the annular metallic layer is located at the annular dielectric layer outside respectively, and the curved metal layer joins end to end annular for arc Two input ports and output port and difference output port are disposed with microstrip line, and curved metal layer.

7. compact-folded monopulse antenna according to claim 6, it is characterised in that the metal transmission network network layers include Upper microstrip line, middle microstrip line and lower microstrip line, the upper microstrip line, middle microstrip line join end to end into hook-shaped, institute with lower microstrip line Middle microstrip line is stated across the gap, the lower microstrip line is connected by coaxial cable with the input port of the sum-difference network.