Portable antenna

Abstract

The invention discloses a portable antenna, and relates to the field of measurement and control antennae, the portable antenna comprises an antenna disc, an antenna pedestal and a tripod, the antenna disc, the antenna pedestal and the tripod are sequentially installed from high to low, the tripod comprises a sleeve seat, a central vertical pipe is sleeved with the sleeve seat, and the upper end of the central vertical pipe is fixedly connected with a connecting end plate used for being connected with the antenna pedestal. 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 invention relates to the technical field of measurement and control antennas, and in particular to a portable antenna. Background Art

[0002] Airship is a kind of aerostat, which is an aircraft that uses lighter-than-air gas to provide lift. It has the characteristics of long flight time, large payload, low cost and simple operation. It has been a hot topic in aircraft research in recent years. Most of the current airship communication link systems use radio data transmission, and the measurement and control system is one of the important ways to support the ground command and control center to realize the flight status monitoring and flight management of load-bearing airships.

[0003] Through the portable station antenna system, voice, data, images and other multimedia information can be interacted uninterruptedly. It is used to send the signal of the high-power amplifier to the free space in a direction, and at the same time receive the electromagnetic wave signal in the directional free space and transmit it to the communication equipment, realizing the communication capability of wide-band signals.

[0004] At present, in wireless communication systems, the base station antenna feeder system is the main facility to ensure signal coverage. When the local area needs to increase the traffic volume or signal enhancement, it is necessary to temporarily build a micro-cellular base station or an MBO edge base station, and it is necessary to set up a temporary antenna. During field use, the antenna pitch and azimuth are adjusted to achieve accurate alignment of the antenna to the target position. The current antenna surface installation and disassembly connector has a complex structure, resulting in the installation and disassembly of the antenna surface. It takes a long time, cannot achieve the effect of rapid mobility, and is not practical. Summary of the invention

[0005] The purpose of the present invention is to provide a portable antenna to solve the above problems, as described below.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A portable antenna provided by the present invention comprises an antenna plate, an antenna seat and a tripod, and the three are installed in order from high to low, the tripod comprises a sleeve seat, the sleeve seat is sleeved with a central vertical pipe, the upper end of the central vertical pipe is fixedly connected to a connecting end plate for connecting with the antenna seat, three evenly distributed leg seats are fixedly connected to the side wall of the sleeve seat, each of the leg seats is provided with a leg that can rotate at a certain angle, wherein the upper ends of two of the legs are fixedly connected to antenna arm seats, the two antenna arm seats are rotatably connected to telescopic arm rods, the ends of the two arm rods are installed with GPS antenna heads, and the lower end of the central vertical pipe is provided with an elastic fixing member for fixing the three legs and the two arm rods in a folded or unfolded state;

[0008] The antenna seat includes a base connected to the connecting end plate bolts, the upper surface of the base is rotatably connected to an electrical component box, both ends of the electrical component box are rotatably connected to the same gantry, a cover is installed on the outside of the electrical component box, and a pitch drive member for adjusting the inclination angle of the gantry is installed inside the electrical component box, and an azimuth drive member for adjusting the rotation angle of the electrical component box is installed inside the electrical component box;

[0009] The antenna plate includes a mounting plate, which is detachably connected to the upper surface of the gantry through a plurality of bolt connectors, a plurality of reflective panels are detachably mounted on the outer side of the mounting plate, a feed tube is mounted on the upper surface of the mounting plate, and the upper end of the feed tube is fixedly connected to a sub-panel through a bracket.

[0010] The portable antenna is used to unfold the legs by flipping outwards during use. At this time, the elastic fixing member drives the central vertical pipe to rise, and the two arm rods are unfolded together. After the three legs are rotated to a suitable angle, they are limited. At the same time, the two arm rods are unfolded to a horizontal state, and then the arm rods are stretched to become longer to complete the extension of the GPS antenna head. Then, the base is fixed to the surface of the connecting end plate by bolts to complete the installation of the antenna seat. Then, the mounting plate is installed on the upper surface of the gantry by bolt connectors. Then, a plurality of reflective panels are installed on the outside of the mounting plate in sequence, and a feed tube is installed on the mounting plate to complete the installation of the antenna plate.

[0011] During operation, all data sources from different sources are processed into target rectangular coordinates of the station's horizontal rectangular coordinate system according to the nature of the data source, and then converted to the rectangular coordinates of the antenna mount coordinate system using the compass heading data and the inclinometer inclination data as parameters. Then, necessary interpolation, differentiation, filtering, and coordinate transformation are performed, and finally the antenna's azimuth, pitch angle instructions and speed compensation are generated. After PID error processing and composite control, the motor's speed control instruction is formed to drive the antenna's follow-up angle instruction, completing slave, program tracking and conical scanning tracking.

[0012] Preferably, both sides of the end of each leg seat are fixedly connected with a stop block that abuts against the upper surface of the leg, and the spacing between the two stops is adapted to the arm rod, and the bottom bending portion of each leg is provided with a bolt support for fine-tuning the height, and the arm rod is composed of three arm sections that are sequentially arranged, and the three arm sections have resistance when extending and retracting.

[0013] Preferably, the bolt support includes a threaded hole opened on the support leg, a threaded rod is threadedly connected in the threaded hole, and the lower end of the threaded rod is fixedly connected to a base block.

[0014] Preferably, the elastic fixing member includes a ring plate fixedly connected to the bottom of the central vertical pipe, and the bottom surfaces of the three legs are fixedly connected with protrusions abutting against the ring plate, and when the protrusions abut against the upper surface of the ring plate, the connecting end plate abuts against the upper surface of the sleeve seat at the same time, a spring is connected between the ring plate and the sleeve seat, and the spring is sleeved on the outside of the central vertical pipe, a spring sheet is connected between the leg and the upper end of the end support arm rod, a cable is connected between the support arm rod and the ring plate, and a through hole is opened through the leg for the cable to pass through.

[0015] Preferably, a lower junction box is fixedly mounted on the front side of the base, a power amplifier and upper and lower frequency converters are fixedly mounted on both ends of the lower side of the gantry, and an upper junction box is fixedly mounted in the middle of one side wall of the gantry.

[0016] Preferably, the pitch drive component includes a pitch stepper motor fixedly mounted in the electrical component box, and the output shaft of the pitch stepper motor is connected to the gantry; the azimuth drive component includes an azimuth stepper motor fixedly mounted on the bottom surface of the electrical component box, the output shaft of the azimuth stepper motor extends to the inside of the base and is fixedly connected to a gear, and the upper end opening of the base is fixedly connected to an inner gear ring meshing with the gear.

[0017] Preferably, the bolt connector includes a fixing hole opened on the bottom surface of the mounting plate, a bolt is inserted into the fixing hole, and a bolt hole threadedly connected to the bolt is opened on the upper surface of the gantry, and the fixing hole is a countersunk design.

[0018] Preferably, one of the reflective panels is fixedly connected to the mounting plate, and the small arc edges at the bottom of the other reflective panels are fixedly connected to a T-shaped clip plate, and a plurality of T-shaped slots distributed in an annular shape and fittingly matched with the T-shaped clip plate are provided on the bottom surface of the mounting plate, and a threaded groove threadedly connected to the mounting plate is provided on the bottom inner wall of the feed tube, and an expansion ring for covering the T-shaped slot is fixedly connected to the lower end of the feed tube.

[0019] Preferably, one end of the top large arc edge of each of the reflective panels is fixedly connected to a connecting rope, the end of the connecting rope is fixedly connected to a T-shaped circular plate, and a T-shaped slide groove that is mounted on the T-shaped circular plate is provided at the top large arc edge of each of the reflective panels. Two plug rods are fixedly connected to one side of each of the reflective panels, and two sockets that are compatible with the plug rods are provided on the other side of each of the reflective panels.

[0020] The beneficial effects are:

[0021] 1. By flipping the legs outward, the elastic fixings drive the central riser to rise, and the two arm rods are unfolded together. At the same time, the two arm rods are unfolded to a horizontal state, and then the arm rods are stretched to become longer. Then the base is fixed on the surface of the connecting end plate, and then the mounting plate is installed on the upper surface of the gantry through bolt connectors. Then, several reflective panels are installed on the outside of the mounting plate in turn, and the feed tube is installed on the mounting plate. Most of the entire structural components are detachable or foldable, which improves the storage portability, is convenient and quick to disassemble and assemble, and realizes rapid motorization.

[0022] 2. When the legs are unfolded for use, while the legs rotate outward, the protrusions do not abut against the ring plate. At this time, the ring plate rises under the tension of the spring. At this time, the two arm rods will not be restricted by the cable and will be unfolded above the legs under the elastic force of the spring sheet. When not in use, the center riser is pressed down to drive the ring plate to move downward. At this time, the two arm rods can be driven by the cable to overcome the elastic force of the spring sheet and fold to the surface of the legs to fit with them until the legs are in a vertical state. The folding and storage is completed. The entire folding and unfolding process of the tripod is quick and convenient, which improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a stereogram of the present invention;

[0025] Figure 2 It is a disassembled stereoscopic view of the portal frame of the present invention;

[0026] Figure 3 is a cross-sectional perspective view of the electrical component box of the present invention;

[0027] Figure 4 It is a disassembled stereoscopic diagram of the feed tube of the present invention;

[0028] Figure 5 is a first stereoscopic diagram of the stacked state of the reflective panels of the present invention;

[0029] Figure 6 is a second stereoscopic view of the stacked state of the reflective panels of the present invention;

[0030] Figure 7 is a three-dimensional diagram of the supporting legs of the present invention in a folded state;

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

[0032] Fig. 9 It is a system principle block diagram of the present invention.

[0033] The following are the descriptions of the reference numerals:

[0034] 1. Casing seat; 2. Center riser; 3. Elastic fixing piece; 3a. Ring plate; 3b. Spring; 3c. Shrapnel; 3d. Bump; 3e. Cable; 4. Bolt support; 4a. Threaded hole; 4b. Threaded rod; 4c. Base block; 5. Bolt connector; 5a. Fixing hole; 5b. Bolt; 5c. Bolt hole; 6. Leg seat; 7. Leg; 8. Antenna arm seat; 9. Arm rod; 10. GPS antenna head; 11. Base; 12. Lower junction box; 13. Electrical component box; 14. Door frame ; 15. Upper junction box; 16. Upper and lower frequency converters; 17. Power amplifier; 18. Pitch stepping motor; 19. Azimuth stepping motor; 20. Gear; 21. Inner ring gear; 22. Mounting plate; 23. Reflection panel; 24. Feed tube; 25. Sub-panel; 26. Expansion ring; 27. T-shaped slot; 28. T-shaped card plate; 29. ​​Insert rod; 30. Socket; 31. Threaded groove; 32. Connecting rope; 33. T-shaped round plate; 34. T-shaped slide groove; 35. Stop block; 36. Cover; 37. Connecting end plate. DETAILED DESCRIPTION

[0035] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0036] See also Figure 1-Figure 8 As shown, the present invention provides a portable antenna, including an antenna plate, an antenna seat and a tripod, and the three are installed in order from high to low, the tripod includes a sleeve seat 1, the sleeve seat 1 is sleeved with a central vertical pipe 2, the upper end of the central vertical pipe 2 is fixedly connected to a connecting end plate 37 for connecting with the antenna seat, three evenly distributed leg seats 6 are fixedly connected to the side wall of the sleeve seat 1, each leg seat 6 is provided with a leg 7 that can rotate at a certain angle, wherein the upper ends of two legs 7 are fixedly connected with antenna arm seats 8, and the two antenna arm seats 8 are rotatably connected with telescopic arm rods 9, and the ends of the two arm rods 9 are installed with GPS antenna heads 10, and the lower end of the central vertical pipe 2 is provided with an elastic fixing member 3 for fixing the three legs 7 and the two arm rods 9 in a folded or unfolded state;

[0037] The antenna base includes a base 11 connected to a connecting end plate 37 by bolts, an electrical component box 13 is rotatably connected to the upper surface of the base 11, and both ends of the electrical component box 13 are rotatably connected to the same gantry 14, a cover 36 is installed on the outer side of the electrical component box 13, and a pitch drive member for adjusting the tilt angle of the gantry 14 is installed inside the electrical component box 13, and an azimuth drive member for adjusting the rotation angle of the electrical component box 13 is installed inside the electrical component box 13;

[0038] The antenna plate includes a mounting plate 22, which is detachably connected to the upper surface of the gantry 14 via a plurality of bolt connectors 5. A plurality of reflective panels 23 are detachably mounted on the outer side of the mounting plate 22. A feed tube 24 is mounted on the upper surface of the mounting plate 22, and a sub-panel 25 is fixedly connected to the upper end of the feed tube 24 via a bracket.

[0039] As an optional embodiment, both sides of the end of each leg seat 6 are fixedly connected with a stop block 35 that abuts against the upper surface of the leg 7, and the spacing between the two stop blocks 35 is adapted to the arm rod 9. The bottom bending portion of each leg 7 is provided with a bolt support 4 for fine-tuning the height. The arm rod 9 is composed of three arm sections that are arranged in sequence, and the three arm sections have resistance when extending and retracting. The stop block 35 can limit the maximum opening angle of the leg 7 in the leg seat 6, so as to achieve stable placement. At the same time, the arm rod 9 can pass through between the two stop blocks 35 without hindering the free rotation of the arm rod 9. At the same time, the arm rod 9 can be extended and retracted through the three arm sections, thereby improving the use effect of the GPS antenna head 10. At the same time, the resistance setting can be equipped with structures such as friction pads, which can make the arm rod 9 not easy to flexibly extend and retract after unfolding, thereby improving the unfolding stability.

[0040] As an optional embodiment, the bolt support 4 includes a threaded hole 4a opened on the support 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 to a base block 4c. When encountering an uneven ground during support, the threaded rod 4b can be rotated to adjust the height position of the base block 4c, thereby achieving stable support placement.

[0041] Reference Figure 1As shown in or 7, the elastic fixing member 3 includes a ring plate 3a fixedly connected to the bottom of the central vertical pipe 2, and the bottom surfaces of the three legs 7 are 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 abuts against the upper surface of the sleeve seat 1 at the same time, a spring 3b is connected between the ring plate 3a and the sleeve seat 1, and the spring 3b is sleeved on the outside of the central vertical pipe 2, a spring piece 3c is connected between the leg 7 and the upper end of the end support arm rod 9, a cable 3e is connected between the support arm rod 9 and the ring plate 3a, and a through hole for the cable 3e to pass through is opened on the leg 7, when the leg 7 is unfolded for use, when the leg 7 is rotated outward, the protrusion 3d does not abut against the ring plate 3a, and the ring plate 3a is in the spring The two arm rods 9 will rise under the pulling force of 3b, and one end of the cable 3e will also rise. At this time, the two support arm rods 9 will not be restricted by the cable 3e, and will be unfolded above the support leg 7 under the elastic force of the spring piece 3c. As the support leg 7 is continuously rotated to make it contact with the two abutments 35 to fix the opening angle, the bottom tripod can be quickly unfolded. At the same time, when not in use, the central vertical pipe 2 is pressed down to drive the ring plate 3a to move downward. At this time, the cable 3e can drive the two support arm rods 9 to overcome the elastic force of the spring piece 3c and fold to the surface of the support leg 7 to fit it. As the downward pressure is continued, the protrusions 3d on the three legs 7 can simultaneously abut against the upper surface of the ring plate 3a to restrict the rise of the ring plate 3a, completing the storage and folding. The entire storage and unfolding process is quick and convenient, thereby improving work efficiency.

[0042] Reference Figure 2-3 As shown, a lower junction box 12 is fixedly installed on the front side of the base 11, a power amplifier 17 and upper and lower frequency converters 16 are fixedly installed at the two ends below the gantry 14, an upper junction box 15, an azimuth stepper motor 19, a pitch stepper motor 18, an azimuth stepper motor driver, and a pitch stepper motor driver are fixedly installed in the middle of one side wall of the gantry 14 to realize speed control of the azimuth axis and pitch axis of the antenna; the angle encoding unit includes azimuth and pitch angle sensors and corresponding angle encoders to complete the measurement of the real-time position of the antenna; the polarization control unit includes polarization switch controllers for C and Ka bands to realize the polarization control function; the attitude measurement unit includes a GPS / BD compass and a dual-axis inclinometer to realize the measurement of the antenna attitude.

[0043] As an optional embodiment, the pitch drive component includes a pitch stepper motor 18 fixedly installed in the electrical component box 13, and the output shaft of the pitch stepper motor 18 is connected to the gantry 14. The azimuth drive component includes an azimuth stepper motor 19 fixedly installed on the bottom surface of the electrical component box 13. The output shaft of the azimuth stepper motor 19 extends to the inside of the base 11 and is fixedly connected to a gear 20. The upper end opening of the base 11 is fixedly connected to an inner ring gear 21 meshing with the gear 20. The pitch stepper motor 18 can drive the gantry 14 to deflect a certain angle outside the electrical component box 13 according to instructions. The azimuth stepper motor 19 can drive the gear 20 to rotate according to instructions. The gear 20 is engaged with the inner ring gear 21, so that the electrical component box 13 is rotated at the upper end of the base 11 to achieve azimuth deflection.

[0044] Reference Figure 4-6 As shown, the bolt connector 5 includes a fixing hole 5a opened on the bottom surface of the mounting plate 22, and a bolt 5b is inserted in the fixing hole 5a. The upper surface of the gantry 14 is provided with a bolt hole 5c threadedly connected to the bolt 5b, and the fixing hole 5a is designed as a countersunk head. After the mounting plate 22 is placed on the upper surface of the gantry 14, the bolt 5b is inserted into the fixing hole 5a and the bolt hole 5c at the same time and rotated to complete the connection and fixation between the mounting plate 22 and the gantry 14. At the same time, the countersunk design of the fixing hole 5a can avoid the end of the bolt 5b from bulging outward, so that the subsequent installation and splicing are smoother, and the entire antenna plate is more stable and firm after splicing and installation.

[0045] As an optional implementation, one of the reflective panels 23 is fixedly connected to the mounting plate 22, and the small arc edges at the bottom of the remaining reflective panels 23 are fixedly connected to a T-shaped clip 28. A plurality of T-shaped slots 27 distributed in an annular shape and snap-fitting with the T-shaped clip 28 are provided on the bottom surface of the mounting plate 22. A threaded groove 31 threadedly connected to the mounting plate 22 is provided on the bottom inner wall of the feed tube 24, and an expansion ring 26 for covering the T-shaped slot 27 is fixedly connected to the lower end of the feed tube 24. When installing a plurality of reflective panels 23 on the mounting plate 22, the T-shaped clips 28 are correspondingly inserted into the T-shaped slots 27, and they are spliced ​​and arranged in sequence, and then the feed tube 24 is rotatably installed on the mounting plate 22. At this time, the expansion ring 26 simultaneously blocks the upper sides of the plurality of T-shaped slots 27 to prevent the T-shaped clips 28 from falling off.

[0046] Specifically, one end of the top large arc edge of each reflective panel 23 is fixedly connected to a connecting rope 32, and the end of the connecting rope 32 is fixedly connected to a T-shaped circular plate 33. A T-shaped slide groove 34 that is mounted on the T-shaped circular plate 33 is provided at the top large arc edge of each reflective panel 23. Two plug rods 29 are fixedly connected to one side edge of each reflective panel 23, and two sockets 30 that are plugged into and adapted to the plug rods 29 are provided on the other side edge of each reflective panel 23. The connecting rope 32 can enable several reflective panels 23 to be slid and stacked in sequence, and the T-shaped circular plate 33 to slide in the T-shaped slide groove 34, thereby preventing several reflective panels 23 from being scattered and lost. When several reflective panels 23 are spliced ​​in sequence, the plug rods 29 are inserted into the sockets 30 on adjacent reflective panels 23, so that the several reflective panels 23 are more stable after splicing.

[0047] With the above structure, when in use, the legs 7 are unfolded by flipping outwards, at which time the elastic fixing member 3 drives the central vertical pipe 2 to rise, and the two arm rods 9 are unfolded together, and are limited after the three legs 7 are rotated to a suitable angle, and the two arm rods 9 are unfolded to a horizontal state, and then the arm rods 9 are stretched to become longer, so that the GPS antenna head 10 is extended, and then the base 11 is fixed to the surface of the connecting end plate 37 by bolts to complete the installation of the antenna seat, and then the mounting plate 22 is installed on the upper surface of the gantry 14 by the bolt connector 5, and then a plurality of reflective panels 23 are sequentially installed on the outside of the mounting plate 22, and the feed tube 24 is installed on the mounting plate 22 to complete the installation of the antenna plate;

[0048] During operation, all data sources from different sources are processed into target rectangular coordinates of the station's horizontal rectangular coordinate system according to the nature of the data source, and then converted to the rectangular coordinates of the antenna mount coordinate system using the compass heading data and the inclinometer inclination data as parameters. Then, necessary interpolation, differentiation, filtering, and coordinate transformation are performed, and finally the antenna's azimuth, pitch angle instructions and speed compensation are generated. After PID error processing and composite control, the motor's speed control instruction is formed to drive the antenna's follow-up angle instruction, completing slave, program tracking and conical scanning tracking.

[0049] Reference Fig. 9 As shown, the antenna feed subsystem is mainly composed of the antenna reflector and the C / Ka band feed network, which completes the reception of satellite downlink signals and the transmission of uplink signals;

[0050] Control subsystem: mainly composed of azimuth axis angle sensor, pitch axis angle sensor, antenna control unit (ACU), safety protection device, azimuth drive device, pitch drive device, antenna drive unit (ADU), etc., to complete various operations of the antenna. Use the guidance information sent by the computer to complete the angle capture and tracking of the target, so that the antenna can accurately point to the target;

[0051] In order to reflect the functional completeness, the block diagram shows that the power amplifier, LNA (part), etc. do not belong to the antenna feed distribution system.

[0052] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A portable antenna, characterized in that: The invention comprises an antenna dish, an antenna seat and a tripod, and the three are installed in order from high to low. The tripod comprises a sleeve seat (1), the sleeve seat (1) is sleeved with a central vertical pipe (2), the upper end of the central vertical pipe (2) is fixedly connected to a connecting end plate (37) for connecting with the antenna seat, and the side wall of the sleeve seat (1) is fixedly connected with three evenly distributed leg seats (6), each of the leg seats (6) is provided with a leg (7) that can rotate at a certain angle, wherein the upper ends of two of the legs (7) are fixedly connected with antenna arm seats (8), and the two antenna arm seats (8) are rotatably connected with telescopic arm rods (9), and the ends of the two arm rods (9) are installed with GPS antenna heads (10), and the lower end of the central vertical pipe (2) is provided with an elastic fixing member (3) for fixing the three legs (7) and the two arm rods (9) in a folded or unfolded state; The antenna seat comprises a base (11) bolted to a connecting end plate (37); an electrical component box (13) is rotatably connected to the upper surface of the base (11); two ends of the electrical component box (13) are rotatably connected to a same gantry (14); a cover (36) is installed on the outer side of the electrical component box (13); a pitch drive component for adjusting the tilt angle of the gantry (14) is installed inside the electrical component box (13); and an azimuth drive component for adjusting the rotation angle of the electrical component box (13) is installed inside the electrical component box (13); The antenna plate comprises a mounting plate (22), the mounting plate (22) being detachably connected to the upper surface of a gantry (14) via a plurality of bolt connectors (5), a plurality of reflective panels (23) being detachably mounted on the outer side of the mounting plate (22), a feed tube (24) being mounted on the upper surface of the mounting plate (22), and a sub-panel (25) being fixedly connected to the upper end of the feed tube (24) via a bracket.

2. A portable antenna according to claim 1, characterized in that: Both sides of the end of each leg seat (6) are fixedly connected with a stop block (35) that abuts against the upper surface of the leg (7), and the spacing between the two stop blocks (35) is adapted to the arm rod (9). The bottom bending portion of each leg (7) is provided with a bolt support (4) for fine-tuning the height. The arm rod (9) is composed of three arm sections that are arranged in sequence, and the three arm sections have resistance when extending and retracting.

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

4. A portable antenna according to claim 1, characterized in that: The elastic fixing member (3) comprises a ring plate (3a) fixedly connected to the bottom of the central vertical pipe (2); the bottom surfaces of the three supporting legs (7) are 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; a spring (3b) is connected between the ring plate (3a) and the sleeve seat (1), and the spring (3b) is sleeved on the outside of the central vertical pipe (2); a spring sheet (3c) is connected between the supporting leg (7) and the upper end of the end support arm rod (9); a cable (3e) is connected between the support arm rod (9) and the ring plate (3a); and a through hole for the cable (3e) to pass through is opened through the supporting leg (7).

5. The portable antenna according to claim 1, characterized in that: A lower junction box (12) is fixedly mounted on the front side of the base (11), a power amplifier (17) and upper and lower frequency converters (16) are respectively fixedly mounted at the two ends below the gantry (14), and an upper junction box (15) is fixedly mounted in the middle of one side wall of the gantry (14).

6. The portable antenna according to claim 1, characterized in that: The pitch driving component includes a pitch stepping motor (18) fixedly mounted in an electrical component box (13), and the output shaft of the pitch stepping motor (18) is connected to the gantry (14); the azimuth driving component includes an azimuth stepping motor (19) fixedly mounted on the bottom surface of the electrical component box (13); the output shaft of the azimuth stepping motor (19) extends to the inside of the base (11) and is fixedly connected to a gear (20); and an inner gear ring (21) meshing with the gear (20) is fixedly connected to the upper opening of the base (11).

7. The portable antenna according to claim 1, characterized in that: The bolt connector (5) comprises a fixing hole (5a) formed on the bottom surface of the mounting plate (22), a bolt (5b) being inserted into the fixing hole (5a), a bolt hole (5c) threadedly connected to the bolt (5b) being formed on the upper surface of the gantry (14), and the fixing hole (5a) is of countersunk design.

8. The portable antenna according to claim 1, characterized in that: One of the reflection panels (23) is fixedly connected to the mounting plate (22), and the small arc edges at the bottom of the other reflection panels (23) are fixedly connected to a T-shaped card plate (28). The bottom surface of the mounting plate (22) is provided with a plurality of T-shaped slots (27) distributed in an annular shape and adapted to fit the T-shaped card plate (28). The bottom inner wall of the feed tube (24) is provided with a threaded slot (31) threadedly connected to the mounting plate (22), and the lower end of the feed tube (24) is fixedly connected to an expansion ring (26) for covering the T-shaped slot (27).

9. A portable antenna according to claim 8, characterized in that: One end of the top large arc edge of each of the reflection panels (23) is fixedly connected to a connection rope (32), and the end of the connection rope (32) is fixedly connected to a T-shaped circular plate (33). The top large arc edge of each of the reflection panels (23) is provided with a T-shaped slide groove (34) sleeved with the T-shaped circular plate (33). One side edge of each of the reflection panels (23) is fixedly connected to two insertion rods (29), and the other side edge of each of the reflection panels (23) is provided with two insertion holes (30) adapted to be plugged into the insertion rods (29).

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