Portable antenna

Abstract

The utility model discloses a portable antenna, relates to measurement and control antenna field, including antenna disc, antenna seat and tripod, and three are installed from high to low in proper order, the tripod includes casing pipe seat, the inside of casing pipe seat is sleeved with central riser, the upper end of central riser is fixedly connected with the connecting end plate that is used for being connected with antenna seat. The supporting legs are overturned outwards to be unfolded, at the moment, the elastic fixing pieces drive the central vertical pipe to ascend, the two supporting arm rods are unfolded together and unfolded to be in the horizontal state, then the supporting arm rods are stretched to be lengthened, the base is fixed to the surface of the connecting end plate, and then the mounting disc is mounted on the upper surface of the door-shaped frame through the bolt connecting pieces. And then a plurality of reflection panels are sequentially installed on the outer side of the installation disc, the feed source cylinder is installed on the installation disc, most of the whole structural component can be disassembled or folded, the storage portability is improved, disassembly and assembly are convenient and rapid, and rapid motorization is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of measurement and control antenna, specifically relates to a portable antenna. BACKGROUND

[0002] The airship belongs to one kind of aerostat, is the aerial vehicle using the gas lighter than air to provide the lift, has the long endurance time, the large effective load, the low cost, the simple operation and so on, is the hot spot of aerial vehicle research in recent years, and the communication link system of the airship mostly adopts the radio data transmission mode, and the measurement and control system is one of important ways of supporting the ground command control center to realize the heavy airship flight state monitoring and flight management.

[0003] Through portable station antenna system, the multimedia information such as voice, data and image can be interacted uninterruptedly, the signal of high power amplifier is sent to free space in direction, the electromagnetic wave signal of directional free space is received and transmitted to communication equipment, and the communication ability of wide frequency band signal is realized.

[0004] At present, in wireless communication system, the base station feeder system is the main facility of guaranteeing signal coverage, when local area needs to increase traffic or needs signal enhancement, temporary microcell base station or MBO edge base station must be built, and temporary antenna must be erected, in field use, the antenna is accurately aligned to target position by adjusting antenna pitch and azimuth, the structure of the connecting piece of the installation and disassembly of the antenna surface is complex, the installation and disassembly of the antenna surface need long time, the fast maneuvering effect cannot be achieved, and the practicability is poor. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the above-mentioned problems and provides a portable antenna, which is described in detail below.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides a portable antenna, which comprises an antenna disc, an antenna seat and a tripod, and the three are installed in sequence from high to low, the tripod comprises a sleeve seat, a central stand pipe is sleeved in the sleeve seat, a connecting end plate for connecting with the antenna seat is fixedly connected to the upper end of the central stand pipe, three evenly distributed supporting leg seats are fixedly connected to the side wall of the sleeve seat, each supporting leg seat is provided with a supporting leg which can rotate at a certain angle, the upper end of two supporting legs is fixedly connected with an antenna arm seat, two telescopic arm rods are rotatably connected to the two antenna arm seats, a GPS antenna head is installed at the end of the two arm rods, and an elastic fixing piece is arranged at the lower end of the central stand pipe to make the three supporting legs and the two arm rods in the folded or unfolded state.

[0008] The antenna seat comprises a base connected with the connecting end plate by bolts, the upper surface of the base is rotationally connected with an electrical element box, both ends of the electrical element box are rotationally connected with a same door-shaped frame, the outer side of the electrical element box is provided with a cover, and the inside of the electrical element box is provided with a pitch driving element for adjusting the inclination angle of the door-shaped frame, the inside of the electrical element box is provided with an azimuth driving element for adjusting the rotation angle of the electrical element box.

[0009] The antenna disc comprises a mounting disc which is detachably connected with the upper surface of the door-shaped frame through a plurality of bolt connectors, the outer side of the mounting disc is detachably provided with a plurality of reflecting panels, the upper surface of the mounting disc is provided with a feed source cylinder, and the upper end of the feed source cylinder is fixedly connected with a sub-panel through a support.

[0010] The portable antenna is used, the supporting legs are turned outwards and unfolded, the elastic fixing element drives the central vertical pipe to rise, and the two supporting arm rods are unfolded at the same time, the three supporting legs are limited after being rotated to appropriate angles, the two supporting arm rods are unfolded to the horizontal state, the supporting arm rods are then stretched to be longer, the stretching of the GPS antenna head is completed, the base is then fixed on the surface of the connecting end plate by bolts, the installation of the antenna seat is completed, the mounting disc is then installed on the upper surface of the door-shaped frame through the bolt connectors, the plurality of reflecting panels are then installed on the outer side of the mounting disc, and the feed source cylinder is installed on the mounting disc, and the installation of the antenna disc is completed.

[0011] In the running process, all data sources of different origins are processed into target rectangular coordinates of the station horizontal rectangular coordinate system according to the nature of the data sources, and then converted into rectangular coordinates of the antenna seat frame coordinate system by taking the heading data of the heading instrument and the inclination data of the inclination instrument as parameters, and then necessary interpolation, differentiation, filtering and coordinate transformation are performed, finally the azimuth and pitch angle instructions and speed compensation of the antenna are generated, the speed control instructions of the motor are formed through PID error processing and compound control, the antenna is driven to follow the angle instructions, and the driven, program tracking and conical scanning tracking are completed.

[0012] As preferred, the end portions of each supporting leg seat are fixedly connected with abutting blocks abutting against the upper surface of the supporting leg, and the distance between the two abutting blocks is matched with the supporting arm rod, the bottom bending portions of each supporting leg are provided with bolt supports for fine height adjustment, the supporting arm rod is composed of three supporting arm segments which are sequentially sleeved, and the three supporting arm segments have resistance when being stretched and retracted.

[0013] As preferred, the bolt support comprises a threaded hole opened in the supporting leg, and a threaded rod is threadedly connected in the threaded hole, and the lower end of the threaded rod is fixedly connected with a base block.

[0014] As preferred, the elastic fixing member comprises a ring plate fixedly connected to the bottom of the central stand pipe, the bottom surface of each of the three legs is fixedly connected with a protrusion abutting against the ring plate, and when the protrusion abuts against the upper surface of the ring plate, the connecting end plate abuts against the upper surface of the sleeve seat, a spring is connected between the ring plate and the sleeve seat, and the spring is sleeved outside the central stand pipe, a spring sheet is connected between the leg and the upper end of the end arm rod, a cable is connected between the arm rod and the ring plate, and a perforation for the cable to pass through is provided in the leg.

[0015] As preferred, the front side of the base is fixedly installed with a lower distribution box, the lower ends of the door-shaped frame are fixedly installed with a power amplifier and an up-down frequency converter respectively, and the middle part of a side wall of the door-shaped frame is fixedly installed with an upper distribution box.

[0016] As preferred, the pitch driving member comprises a pitch stepping motor fixedly installed in the electrical element box, and the output shaft of the pitch stepping motor is connected with the door-shaped frame, and the azimuth driving member comprises an azimuth stepping motor fixedly installed at the bottom surface of the electrical element box, and the output shaft of the azimuth stepping motor is fixedly connected with a gear inside the base.

[0017] As preferred, the bolt connecting member comprises a fixing hole provided on the bottom surface of the mounting disc, a bolt is inserted into the fixing hole, a bolt hole is provided on the upper surface of the door-shaped frame and is threadedly connected with the bolt, and the fixing hole is designed as a countersunk head.

[0018] As preferred, one of the reflective panels is fixedly connected with the mounting disc, the bottom small arc edges of the remaining reflective panels are fixedly connected with T-shaped clamping plates, a plurality of T-shaped clamping grooves are provided on the bottom surface of the mounting disc and are adapted to be clamped with the T-shaped clamping plates, a threaded groove is provided on the bottom inner wall of the feed source cylinder and is threadedly connected with the mounting disc, and an expansion ring is fixedly connected to the lower end of the feed source cylinder and covers the T-shaped clamping grooves.

[0019] As preferred, one end of the top large arc edge of each reflective panel is fixedly connected with a connecting rope, the end of the connecting rope is fixedly connected with a T-shaped circular plate, a T-shaped sliding groove is provided on the top large arc edge of each reflective panel and is sleeved with the T-shaped circular plate, two insertion rods are fixedly connected to one side edge of each reflective panel, and two insertion holes are provided on the other side edge of each reflective panel and are adapted to be inserted with the insertion rods.

[0020] The beneficial effects are as follows:

[0021] 1. By turning outwards, the elastic fixing member drives the center standpipe to rise, and the two supporting arm rods are unfolded simultaneously, and then the base is fixed on the surface of the connecting end plate, and then the mounting disc is installed on the upper surface of the door-shaped frame through the bolt connecting piece, and then a plurality of reflecting panels are installed on the outside of the mounting disc in sequence, and the feed source cylinder is installed on the mounting disc, most of the structural parts are detachable or foldable, the storage portability is improved, the disassembly and assembly are convenient and fast, and rapid mobilization is realized.

[0022] 2. When the supporting leg is unfolded for use, the convex block does not abut against the ring plate while the supporting leg rotates outward, the ring plate rises under the action of the spring tension at this time, the two supporting arm rods will not be limited by the cable, and are unfolded above the supporting leg under the action of the spring force of the spring piece, when not in use, the center standpipe is pressed down to drive the ring plate to move downward, at this time, the two supporting arm rods can drive the cable to overcome the spring force of the spring piece and be folded to the surface of the supporting leg and be attached thereto until the supporting leg is in a vertical state, the folding is completed, and the folding and unfolding process of the whole tripod is fast and convenient, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 is a perspective view of the present application;

[0025] Figure 2 is a split perspective view of the door-shaped frame of the present application;

[0026] Figure 3 is a sectional perspective view of the electric element box of the present application;

[0027] Figure 4 is a split perspective view of the feed source cylinder of the present application;

[0028] Figure 5 is a first perspective view of the stacked state of the reflecting panel of the present application;

[0029] Figure 6 is a second perspective view of the stacked state of the reflecting panel of the present application;

[0030] Figure 7 is a perspective view of the folded state of the supporting leg of the present application;

[0031] Figure 8 is a position control system diagram of the present application;

[0032] Figure 9 It is the system principle block diagram of the utility model.

[0033] The sign of the drawing is explained as follows:

[0034] 1, sleeve seat, 2, central vertical tube, 3, elastic fixing part, 3a, ring plate, 3b, spring, 3c, elastic sheet, 3d, protruding block, 3e, cable, 4, bolt support, 4a, threaded hole, 4b, threaded rod, 4c, base block, 5, bolt connecting piece, 5a, fixed hole, 5b, bolt, 5c, bolt hole, 6, leg seat, 7, leg, 8, antenna support arm seat, 9, support arm rod, 10, GPS antenna head, 11, base, 12, lower distribution box, 13, electrical component box, 14, door-shaped frame, 15, upper distribution box, 16, upper and lower frequency converter, 17, power amplifier, 18, elevation stepping motor, 19, azimuth stepping motor, 20, gear, 21, inner gear ring, 22, mounting disc, 23, reflecting panel, 24, feed source cylinder, 25, auxiliary panel, 26, expansion ring, 27, T-shaped clamping slot, 28, T-shaped clamping plate, 29, insertion rod, 30, insertion hole, 31, threaded groove, 32, connecting rope, 33, T-shaped round plate, 34, T-shaped sliding slot, 35, abutting block, 36, cover, 37, connecting end plate. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope protected by the utility model.

[0036] Referring to Figures 1-8 The utility model provides a kind of portable antenna, including antenna disc, antenna seat and tripod, and three are installed in order from high to low, including sleeve seat 1 in the tripod, the inside of sleeve seat 1 is equipped with central vertical tube 2, the upper end of central vertical tube 2 is fixedly connected with the connecting end plate 37 for being connected with antenna seat, three evenly distributed leg seats 6 are fixedly connected on the side wall of sleeve seat 1, each leg seat 6 is equipped with the leg 7 that can rotate at certain angle, the upper end of two legs 7 is fixedly connected with antenna support arm seat 8, two telescopic support arm rods 9 are rotatably connected in two antenna support arm seats 8, GPS antenna head 10 is installed in the end of two support arm rods 9, the lower end of central vertical tube 2 is equipped with elastic fixing part 3 for making three legs 7 and two support arm rods 9 in folded or unfolded state;

[0037] The antenna pedestal comprises a base 11 bolted with the connecting end plate 37, the upper surface of the base 11 is rotationally connected with an electrical component box 13, both ends of the electrical component box 13 are rotationally connected with a same door-shaped frame 14, the outer side of the electrical component box 13 is provided with a cover 36, and the inside of the electrical component box 13 is provided with a pitch driving element for adjusting the inclination angle of the door-shaped frame 14, the inside of the electrical component box 13 is provided with an azimuth driving element for adjusting the rotation angle of the electrical component box 13;

[0038] The antenna disc comprises a mounting disc 22, the mounting disc 22 is detachably connected with the upper surface of the door-shaped frame 14 through a plurality of bolted connections 5, the outer side of the mounting disc 22 is detachably provided with a plurality of reflecting panels 23, and the upper surface of the mounting disc 22 is provided with a feed cylinder 24, the upper end of the feed cylinder 24 is fixedly connected with a sub-panel 25 through a support.

[0039] As an optional implementation, the end of each leg seat 6 is fixedly connected with an abutting block 35 abutting against the upper surface of the leg 7, the spacing between the two abutting blocks 35 is adapted to the branch arm rod 9, the bottom bent part of each leg 7 is provided with a bolt support 4 for fine adjustment of height, the branch arm rod 9 is composed of three branch arm sections which are sequentially sleeved, and the three branch arm sections have resistance when being stretched and contracted, the abutting block 35 can limit the maximum opening angle of the leg 7 in the leg seat 6, so that stable placement is realized, meanwhile, the branch arm rod 9 can pass through between the two abutting blocks 35, without hindering the free rotation of the branch arm rod 9, meanwhile, the three branch arm sections can realize the stretching and contraction of the branch arm rod 9, improve the use effect of the GPS antenna head 10, and the resistance can be provided with a friction pad and other structures, so that the branch arm rod 9 is not easy to flexibly stretch and contract after being unfolded, and the unfolding stability is improved.

[0040] As an optional implementation, the bolt support 4 comprises a threaded hole 4a formed on the leg 7, a threaded rod 4b is threadedly connected in the threaded hole 4a, and the lower end of the threaded rod 4b is fixedly connected with a base block 4c, when the ground is uneven during the placement, the height position of the base block 4c can be adjusted by rotating the threaded rod 4b, so that stable placement is realized.

[0041] Reference Figure 1As shown in 7, the elastic fixing part 3 includes a ring plate 3a fixedly connected to the bottom of the central stand pipe 2, the bottom surface of each of the three legs 7 is fixedly connected with a protrusion 3d abutting against the ring plate 3a, and when the protrusion 3d abuts against the upper surface of the ring plate 3a, the connecting end plate 37 simultaneously abuts against the upper surface of the sleeve seat 1, the spring 3b is connected between the ring plate 3a and the sleeve seat 1, and the spring 3b is sleeved outside the central stand pipe 2, the elastic sheet 3c is connected between the leg 7 and the upper end of the end branch arm rod 9, the cable 3e is connected between the branch arm rod 9 and the ring plate 3a, and the perforation for the cable 3e to pass through is provided through the leg 7, when the leg 7 is unfolded for use, the leg 7 rotates outwardly, the protrusion 3d does not abut against the ring plate 3a, at this time, the ring plate 3a rises under the pulling force of the spring 3b, and one end of the cable 3e also rises, at this time, the two branch arm rods 9 are not limited by the cable 3e, and unfold above the leg 7 under the elastic force of the elastic sheet 3c, with the continuous rotation of the leg 7, the leg 7 contacts the two abutting blocks 35 to fix the opening angle, the bottom tripod is quickly unfolded, and when not in use, the central stand pipe 2 is pressed downward to drive the ring plate 3a to move downward, at this time, the two branch arm rods 9 can be driven by the cable 3e to overcome the elastic force of the elastic sheet 3c and fold to the surface of the leg 7 to be attached to the surface of the leg 7, with the continuous pressing, the protrusions 3d on the three legs 7 can simultaneously abut against the upper surface of the ring plate 3a to limit the ring plate 3a from rising, the folding is completed, the folding and unfolding processes are quick and convenient, and the working efficiency is improved.

[0042] Referring to Figures 2-3 As shown in the figure, the front side of the base 11 is fixedly installed with a lower distribution box 12, the lower ends of the door-shaped frame 14 are respectively fixedly installed with a power amplifier 17 and an upper and lower frequency converter 16, the middle part of the side wall of the door-shaped frame 14 is fixedly installed with an upper distribution box 15, an azimuth stepper motor 19 and an elevation stepper motor 18, and azimuth stepper motor drivers and elevation stepper motor drivers are installed to realize the speed control of the azimuth axis and the elevation axis of the antenna; the angle coding unit includes azimuth and elevation angle sensors and corresponding angle encoders to complete the measurement of the real-time position of the antenna; the polarization control unit includes C and Ka frequency band polarization switch controllers to realize the polarization control function; the attitude measurement unit includes a GPS / BD heading instrument and a double-axis tilt meter to realize the measurement of the attitude of the antenna.

[0043] As an optional implementation, the pitch driving part includes a pitch stepper motor 18 fixedly installed in the electrical element box 13, and an output shaft of the pitch stepper motor 18 is connected with the door-shaped frame 14; the azimuth driving part includes an azimuth stepper motor 19 fixedly installed on the bottom surface of the electrical element box 13, and an output shaft of the azimuth stepper motor 19 extends to the inside of the base 11 and is fixedly connected with a gear 20; an upper end opening of the base 11 is fixedly connected with an inner ring gear 21 engaged with the gear 20; the door-shaped frame 14 can be driven to deflect by a certain angle outside the electrical element box 13 according to a command through the pitch stepper motor 18; the gear 20 can be driven to rotate according to a command through the azimuth stepper motor 19; the electrical element box 13 is rotated on the upper end of the base 11 through the engagement of the gear 20 and the inner ring gear 21, so as to realize azimuth deflection.

[0044] Referring to Figures 4-6 As shown in the figure, the bolt connecting part 5 includes a fixing hole 5a opened on the bottom surface of the mounting disc 22, a bolt 5b is inserted into the fixing hole 5a, the upper surface of the door-shaped frame 14 is provided with a bolt hole 5c threadedly connected with the bolt 5b, and the fixing hole 5a is designed as a countersunk head, so that after the mounting disc 22 is placed on the upper surface of the door-shaped frame 14, the bolt 5b is simultaneously inserted into the fixing hole 5a and the bolt hole 5c and is rotated to complete the connection and fixation between the mounting disc 22 and the door-shaped frame 14; meanwhile, the countersunk head design of the fixing hole 5a can avoid the convex end of the bolt 5b, so that the subsequent installation and splicing are more smooth, and the entire antenna disc is more stable and firm after splicing and installation.

[0045] As an optional implementation, one of the reflecting panels 23 is fixedly connected with the mounting disc 22, the bottom small arc edges of the remaining reflecting panels 23 are fixedly connected with T-shaped clamping plates 28, a plurality of T-shaped clamping grooves 27 are opened on the bottom surface of the mounting disc 22 and are adapted to be clamped with the T-shaped clamping plates 28, a threaded groove 31 is opened on the bottom inner wall of the feed source cylinder 24 and is threadedly connected with the mounting disc 22, and the lower end of the feed source cylinder 24 is fixedly connected with an expansion ring 26 used to cover the T-shaped clamping grooves 27; when the mounting disc 22 is installed with the plurality of reflecting panels 23, the T-shaped clamping plates 28 are correspondingly inserted into the T-shaped clamping grooves 27 and are sequentially spliced and arranged, and then the feed source cylinder 24 is rotated and installed on the mounting disc 22; at this time, the expansion ring 26 simultaneously blocks the upper sides of the plurality of T-shaped clamping grooves 27 to prevent the T-shaped clamping plates 28 from falling off.

[0046] Specifically, one end of the top large arc edge of each reflective panel 23 is fixedly connected with a connecting rope 32, the end of the connecting rope 32 is fixedly connected with a T-shaped circular plate 33, the top large arc edge of each reflective panel 23 is provided with a T-shaped sliding groove 34 sleeved with the T-shaped circular plate 33, one side of each reflective panel 23 is fixedly connected with two insertion rods 29, and the other side of each reflective panel 23 is provided with two insertion holes 30 adapted to the insertion rods 29. The connecting rope 32 can make the reflective panels 23 be sequentially and slidably stacked, the T-shaped circular plate 33 is slid in the T-shaped sliding groove 34, and the reflective panels 23 are prevented from being scattered and lost. When the reflective panels 23 are sequentially spliced, the insertion rods 29 are inserted into the insertion holes 30 on the adjacent reflective panels 23, and the reflective panels 23 are more stable after splicing.

[0047] With the above structure, in use, the support legs 7 are turned outwards and unfolded, at this time, the elastic fixing member 3 drives the central stand pipe 2 to rise, and the two support arm rods 9 are unfolded at the same time, the three support legs 7 are limited after being turned to a suitable angle, and the two support arm rods 9 are unfolded to a horizontal state, then the support arm rods 9 are stretched to be longer, the extension of the GPS antenna head 10 is completed, then the base 11 is fixed on the surface of the connecting end plate 37 through bolts, the installation of the antenna base is completed, then the mounting disc 22 is installed on the upper surface of the door-shaped frame 14 through the bolt connecting member 5, then the reflective panels 23 are sequentially installed outside the mounting disc 22, and the feed source cylinder 24 is installed on the mounting disc 22, the installation of the antenna disc is completed;

[0048] In the running process, all data sources of different origins are processed into target rectangular coordinates of the station horizontal rectangular coordinate system according to the nature of the data sources, and then converted into rectangular coordinates of the antenna base frame coordinate system by taking the heading data of the heading instrument and the inclination data of the inclination instrument as parameters, and then interpolation, differentiation, filtering, coordinate transformation are performed, finally the azimuth and elevation angle instructions and speed compensation of the antenna are generated, after PID error processing and compound control, the speed control instructions of the motor are formed, the antenna is driven to follow the angle instructions, and the driven, program tracking and conical scanning tracking are completed.

[0049] Referring to Figure 9 The antenna and feed subsystem: mainly composed of antenna reflector and C / Ka band feed network, completes the reception of satellite downlink signals and the transmission of uplink signals;

[0050] The control subsystem: mainly composed of azimuth axis angle sensor, elevation axis angle sensor, antenna control unit (ACU), safety protection device, azimuth driving device, elevation driving device, antenna driving unit (ADU), etc., completes various manipulations of the antenna. The angle capture and tracking of the target are completed by using the guide information issued by the computer, so that the antenna accurately points to the target;

[0051] The composition block diagram is for embodying the functional integrity, wherein the power amplifier, the LNA (part) and the like do not belong to the satellite feed distribution system.

[0052] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A portable antenna, characterized by: The utility model provides a kind of antenna tripod, including antenna disc, antenna seat and tripod, and three are installed successively from high to low, the tripod includes sleeve seat (1), the inside of the sleeve seat (1) is sleeved with central riser (2), the upper end of the central riser (2) is fixedly connected with the connecting end plate (37) for being connected with antenna seat, the side wall of the sleeve seat (1) is fixedly connected with three evenly distributed leg seats (6), each the leg seat (6) is equipped with the leg (7) that can be rotated by a certain angle, the upper end of two the leg (7) is fixedly connected with antenna arm seat (8), two the antenna arm seat (8) is rotatably connected with telescopic arm rod (9), the end of two the arm rod (9) is equipped with GPS antenna head (10), the lower end of the central riser (2) is equipped with elastic fixing piece (3) for making three legs (7) and two arm rods (9) in folded or unfolded state; The antenna seat includes base (11) bolted with connecting end plate (37), the upper surface of the base (11) is rotatably connected with electrical element box (13), both ends of the electrical element box (13) are rotatably connected with the same door-shaped frame (14), the outer side of the electrical element box (13) is equipped with cover shell (36), and the inside of the electrical element box (13) is equipped with pitch driving element for adjusting the inclination angle of door-shaped frame (14), the inside of the electrical element box (13) is equipped with azimuth driving element for adjusting the rotation angle of electrical element box (13); The antenna disc includes mounting disc (22), which is detachably connected to the upper surface of the door-shaped frame (14) by a plurality of bolt connectors (5), a plurality of reflecting panels (23) are detachably mounted on the outer side of the mounting disc (22), a feed source cylinder (24) is mounted on the upper surface of the mounting disc (22), and a sub-panel (25) is fixedly connected to the upper end of the feed source cylinder (24) by a bracket.

2. A portable antenna according to claim 1, characterised in that: The end of each leg seat (6) is fixedly connected with a stop block (35) abutting against the upper surface of the leg (7), and the spacing between the two stop blocks (35) is adapted to the arm rod (9), and the bottom bending part of each leg (7) is provided with a bolt support (4) for fine adjustment of height, the arm rod (9) is composed of three arm sections which are successively sleeved, and the three arm sections have resistance when stretching out or retracting.

3. A portable antenna according to claim 2, characterised in that: The bolt support (4) includes a threaded hole (4a) formed in the leg (7), a threaded rod (4b) is threadedly connected in the threaded hole (4a), and the lower end of the threaded rod (4b) is fixedly connected with a base block (4c).

4. The portable antenna of claim 1, wherein: The elastic fixing part (3) comprises a ring plate (3a) fixedly connected to the bottom of the central riser (2), the bottom surface of each of the three legs (7) is fixedly connected with a protrusion (3d) abutting against the ring plate (3a), when the protrusion (3d) abuts against the upper surface of the ring plate (3a), the connecting end plate (37) abuts against the upper surface of the sleeve seat (1) at the same time, the spring (3b) is connected between the ring plate (3a) and the sleeve seat (1), and the spring (3b) is sleeved outside the central riser (2), the elastic sheet (3c) is connected between the leg (7) and the upper end of the end branch arm rod (9), the cable (3e) is connected between the branch arm rod (9) and the ring plate (3a), and the perforation for the cable (3e) to pass through is provided in the leg (7).

5. The portable antenna of claim 1, wherein: The front side of the base (11) is fixedly installed with a lower distribution box (12), the lower ends of the door-shaped frame (14) are fixedly installed with a power amplifier (17) and an upper and lower frequency converter (16) respectively, and the middle part of the side wall of the door-shaped frame (14) is fixedly installed with an upper distribution box (15).

6. The portable antenna of claim 1, wherein: The pitch driving part comprises a pitch stepping motor (18) fixedly installed in the electrical element box (13), and the output shaft of the pitch stepping motor (18) is connected with the door-shaped frame (14), the azimuth driving part comprises an azimuth stepping motor (19) fixedly installed at the bottom surface of the electrical element box (13), the output shaft of the azimuth stepping motor (19) extends to the inside of the base (11) and is fixedly connected with a gear (20), and the upper end opening of the base (11) is fixedly connected with an internal gear ring (21) meshing with the gear (20).

7. The portable antenna of claim 1, wherein: The bolt connecting part (5) comprises a fixing hole (5a) provided in the bottom surface of the mounting disc (22), the fixing hole (5a) is inserted with a bolt (5b), the upper surface of the door-shaped frame (14) is provided with a bolt hole (5c) threadedly connected with the bolt (5b), and the fixing hole (5a) is designed as a countersunk hole.

8. The portable antenna of claim 1, wherein: One of the reflecting panels (23) is fixedly connected with the mounting disc (22), the bottom small arc edges of the remaining reflecting panels (23) are fixedly connected with T-shaped clamping plates (28), a plurality of T-shaped clamping grooves (27) are provided in the bottom surface of the mounting disc (22) and are adapted to be clamped with the T-shaped clamping plates (28), the bottom inner wall of the feed source cylinder (24) is provided with a threaded groove (31) threadedly connected with the mounting disc (22), and the lower end of the feed source cylinder (24) is fixedly connected with an expansion ring (26) covering the T-shaped clamping grooves (27).

9. A portable antenna according to claim 8, characterised in that: The top large arc edges of each of the reflecting panels (23) are fixedly connected with connecting ropes (32) at one end, the end of the connecting rope (32) is fixedly connected with a T-shaped circular plate (33), the top large arc edges of each of the reflecting panels (23) are provided with T-shaped sliding grooves (34) sleeved with the T-shaped circular plates (33), and the side edges of each of the reflecting panels (23) are fixedly connected with two insertion rods (29), and the other side edges of each of the reflecting panels (23) are provided with two insertion holes (30) adapted to be inserted with the insertion rods (29).

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