A wide beam UHF band satellite communication antenna

Abstract

The invention discloses a wide-beam UHF frequency band satellite communication antenna, comprising a base, a plurality of dielectric plates and a signal phase splitter plate, wherein the plurality of dielectric plates are arranged on the signal phase splitter plate, and the dielectric plates and the signal phase splitter plate form an angle, the dielectric plates are provided with a feeder, the signal phase splitter plate is horizontally arranged on the base, the signal phase splitter plate is provided with a plurality of lines, and the lines are connected to the feeder. The wide-beam UHF frequency band satellite communication antenna is small in size, light in weight, has a firm structure and high reliability, and has the advantages of a wide beam.

Description

Technical Field

[0001] The invention belongs to the field of antennas, and in particular relates to a wide-beam UHF frequency band satellite communication antenna. Background Art

[0002] The revolution period of low-orbit communication satellites around the earth is relatively short, usually 1.5 to 2 hours. The best communication period is only when the satellite passes overhead. In order to make full use of this period and ensure a certain communication link margin, higher requirements are placed on the antenna beam width. The wider the antenna beam and the higher the low elevation gain, the longer the system can communicate with the satellite and the better the communication quality.

[0003] In addition, for UHF band satellite antennas, it is also hoped that the space occupied by the antenna can be reduced, and the antenna can also have an adaptive mounting structure when installed and used to improve the reliability of the antenna. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a wide-beam UHF band satellite communication antenna, which solves the problems in the prior art of narrow antenna beam, large size, poor firmness caused by incompatibility between the mounting structure and the antenna structure.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is to provide a wide-beam UHF frequency band satellite communication antenna, including a base, multiple dielectric plates and a signal phase branching plate, the multiple dielectric plates are arranged on the signal phase branching plate, and the dielectric plates and the signal phase branching plate form an angle, the dielectric plate has a feeder, the signal phase branching plate is horizontally arranged on the base, the signal phase branching plate has multiple lines, and the lines are connected to the feeder.

[0006] Preferably, there are four dielectric plates, which are arranged in a surrounding manner on the signal phase branching plate, and the size of the opening formed by the upper edges of the plurality of dielectric plates is larger than the size of the opening formed by the lower edges of the dielectric plates.

[0007] Preferably, the acute angle formed by the dielectric plate and the signal phase splitter plate is in the range of 20°-70°.

[0008] Preferably, the medium plate is a straight hexagonal structure as a whole, including a first horizontal side and a second horizontal side arranged horizontally in parallel, the first horizontal side is located at the upper part, the second horizontal side is located at the lower part, and the length of the first horizontal side is greater than the length of the second horizontal side; it also includes a first vertical side and a second vertical side arranged vertically in parallel, the first vertical side is located at the upper part, and its upper end is combined with the left end of the first horizontal side, and the second vertical side is located at the lower part, and its lower end is combined with the right end of the second horizontal side; it also includes a first hypotenuse and a second hypotenuse arranged obliquely, the upper end of the first hypotenuse is connected to the lower end of the first vertical side, the lower end of the first hypotenuse is connected to the left end of the second horizontal side, the upper end of the second hypotenuse is connected to the right end of the first horizontal side, and the lower end of the second hypotenuse is connected to the upper end of the second vertical side.

[0009] Preferably, the feed line includes a first feed line and a second feed line, and along the height direction of the dielectric plate from bottom to top, the first feed line and the second feed line gradually tilt to the left, and the width of the first feed line is smaller than the width of the second feed line.

[0010] Preferably, the width of the second feed line gradually increases from bottom to top along the height direction of the dielectric plate.

[0011] Preferably, there are four lines, and they are arranged in a clockwise direction with a phase difference of 90°. The four lines are welded and connected to the first feed lines on the four dielectric plates in a one-to-one correspondence.

[0012] Preferably, a supporting foot is provided on the base, and the supporting foot has an inclined supporting surface, and the supporting surface is used to fit the outer surface of the supporting medium plate.

[0013] Preferably, it also includes a support frame, which is arranged on the signal phase branch plate, and the support frame includes a support plate and a support beam. There are four support plates and four support beams, and the four support plates are surrounded and enclosed, and the four support beams are surrounded and enclosed to form a rectangular support. Each support beam is connected to a support plate, and the angle formed by the support plate and the signal phase branch plate is the same as the angle formed by the dielectric plate and the signal phase branch plate. The support plate is used to fit the inner surface of the supporting dielectric plate, and the shape of the support plate is adapted to the shape of the dielectric plate.

[0014] The invention has the following beneficial effects: the invention discloses a wide-beam UHF frequency band satellite communication antenna, comprising a base, a plurality of dielectric plates and a signal phase splitter plate, the plurality of dielectric plates are arranged on the signal phase splitter plate, and the dielectric plates and the signal phase splitter plate form an angle, the dielectric plates have a feeder, the signal phase splitter plate is horizontally arranged on the base, the signal phase splitter plate has a plurality of lines, and the lines are connected to the feeder. The wide-beam UHF frequency band satellite communication antenna is small in size, light in weight, has a firm structure and high reliability, and has the advantages of a wide beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of an embodiment of a wide beam UHF band satellite communication antenna of the present invention;

[0016] Figure 2 yes Figure 1 An exploded schematic diagram of the illustrated embodiment;

[0017] Figure 3 yes Figure 1 An exploded schematic diagram of the illustrated embodiment (with the housing removed);

[0018] Figure 4 It is a schematic diagram of a dielectric plate in another embodiment of the wide beam UHF band satellite communication antenna of the present invention;

[0019] Figure 5 It is a schematic diagram of a signal phase splitter plate in another embodiment of a wide beam UHF band satellite communication antenna of the present invention;

[0020] Figure 6 It is a schematic diagram of the connection relationship between the dielectric plate and the signal phase splitter plate in another embodiment of the wide beam UHF band satellite communication antenna of the present invention;

[0021] Figure 7 It is a schematic diagram of support feet in another embodiment of the wide beam UHF band satellite communication antenna of the present invention;

[0022] Figure 8 It is a schematic diagram of support feet in another embodiment of the wide beam UHF band satellite communication antenna of the present invention;

[0023] Fig. 9 It is a schematic diagram of a support plate in another embodiment of the wide beam UHF band satellite communication antenna of the present invention;

[0024] Fig.10 It is a schematic diagram of the standing wave ratio in another embodiment of the wide beam UHF band satellite communication antenna of the present invention. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are provided in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] In the drawings, arrow X indicates the front direction, that is, the front-rear direction, arrow Y indicates the side direction, that is, the left-right direction, and arrow Z indicates the vertical direction, that is, the up-down direction.

[0028] Combination Figure 1 , Figure 2 and Figure 3 The wide beam UHF band satellite communication antenna includes a base 1, multiple dielectric plates 2 and a signal phase splitter plate 3. The multiple dielectric plates 2 are arranged on the signal phase splitter plate 3, and the dielectric plates 2 form an angle with the signal phase splitter plate 3. The dielectric plates 2 have feeders. The signal phase splitter plate 3 is horizontally arranged on the base 1. The signal phase splitter plate 3 has multiple lines, and these lines are correspondingly connected to the corresponding feeders on the multiple dielectric plates 2.

[0029] Multiple lines on the signal phase branch plate 3 are connected to the feeder on the dielectric plate 2. High-frequency current is excited on the feeder, and currents of the same frequency are induced between different feeders to form equivalent capacitance. Similarly, equivalent capacitance is also formed between the feeder and the base 1, that is, the current on the feeder will be coupled to the base 1, and the current on the base 1 will be transmitted to the feeder position, forming a current loop and forming an equivalent inductance, which plays a role in circuit tuning and can improve the matching effect, thereby expanding the bandwidth and facilitating the wide beam of the antenna. At the same time, the connection structure formed at an angle between the dielectric plate 2 and the signal limiting branch plate 3 also enhances the overall structural firmness of the antenna and improves the reliability of the antenna.

[0030] The wide-beam UHF-band satellite communication antenna has a simple structure and is easy to assemble and disassemble. It is also small in size, light in weight, firm in structure and highly reliable, and has the advantages of a wide beam.

[0031] Preferably, the dimensions of the wide-beam UHF-band satellite communication antenna are: length 401mm*width 401mm*height 174mm, which meets the requirements of miniaturization. The operating frequency band of the wide-beam UHF-band satellite communication antenna is: 335-351MHz, 375-415MHz.

[0032] Preferably, it further comprises a shell 6 , which is covered on the base 1 and covers the dielectric plate 2 and the signal phase branching plate 3 .

[0033] Preferably, there are four dielectric plates 2, which are arranged in a surrounding manner on the signal phase branch plate 3, and the size of the opening formed by the upper edges of the multiple dielectric plates 2 is larger than the size of the opening formed by the lower edges of the dielectric plates 2, thereby ensuring that the size of the opening formed by the multiple dielectric plates 2 gradually increases from bottom to top. The reason why the lower opening formed by the multiple dielectric plates 2 is set smaller than the upper opening is that this can meet the axial ratio requirement. The axial ratio is determined by the diameter of the helix, that is, the size of the opening. If the lower opening is the same size as the upper opening, the axial ratio is poor in the required frequency band, which will affect the beam width and circular polarization gain.

[0034] Preferably, the angle range of the acute angle formed by the dielectric plate 2 and the signal phase branch plate 3 is 20°-70°. Further preferably, the angle range of the acute angle formed by the dielectric plate 2 and the signal phase branch plate 3 is 55°-70°. The angle range of the acute angle formed between the dielectric plate 2 and the signal phase branch plate 3 should not be too small.

[0035] Preferably, the acute angle formed by the dielectric plate 2 and the signal phase branching plate 3 is 60°.

[0036] Preferably, combined Figure 4 , Figure 5 and Figure 6 These dielectric plates 2 have the same structure, which is convenient for processing and manufacturing. For each dielectric plate 2, the dielectric plate 2 is a straight hexagonal structure as a whole, including a first horizontal side 23 and a second horizontal side 24 arranged horizontally and in parallel, the first horizontal side 23 is located at the upper part, the second horizontal side 24 is located at the lower part, and the length of the first horizontal side 23 is greater than the length of the second horizontal side 24; it also includes a first vertical side 25 and a second vertical side 26 arranged vertically and in parallel, the first vertical side 25 is located at the upper part, and its upper end is combined with the left end of the first horizontal side 23, the second vertical side 26 is located at the lower part, and its lower end is combined with the right end of the second horizontal side 24; it also includes a first hypotenuse 27 and a second hypotenuse 28 arranged obliquely, the upper end of the first hypotenuse 27 is connected to the lower end of the first vertical side 25, the lower end of the first hypotenuse 27 is connected to the left end of the second horizontal side 24, the upper end of the second hypotenuse 28 is connected to the right end of the first horizontal side 23, and the lower end of the second hypotenuse 28 is connected to the upper end of the second vertical side 26.

[0037] Preferably, the feed line includes a first feed line 21 and a second feed line 22, which extend from bottom to top along the height direction of the dielectric plate 2. The first feed line 21 and the second feed line 22 gradually tilt to the left, and the width of the first feed line 21 is smaller than the width of the second feed line 22. There is a first feed line 21 and a second feed line 22 on each of the four dielectric plates 2. The four second feed lines 22 form a four-wall helical antenna. The rotation direction of the second feed line 22 is set in a left-handed direction along the normal direction of the wide-beam UHF band satellite communication antenna. The feeding phases of the four second feed lines 22 are set in a right-handed direction, so that a right-handed circularly polarized wave with a wider beam can be generated.

[0038] Preferably, the width of the second feeder 22 gradually increases from bottom to top along the height direction of the dielectric plate 2. This arrangement is to allow the second feeder 22 to form a tapered structure, which has broadband characteristics and is conducive to the wide beam of the antenna. The first feeder 21 plays a drainage role, coupling the current of the signal phase splitter 3 line to the second feeder 22, and the width of the first feeder 21 will affect the impedance of the port, so it does not need to be too wide, that is, the width of the first feeder 21 is smaller than the width of the second feeder 22.

[0039] Preferably, the first feeder 21 is strip-shaped, and the first feeder 21 gradually tilts to the left from bottom to top, and the width of the first feeder 21 slightly widens from bottom to top, the top edge 211 of the first feeder 21 is horizontally set, and the bottom end 212 of the first feeder 21 is used to connect to the line feed on the signal phase branch board 3, and the first feeder 21 has two approximately parallel oblique sides, namely the first oblique side 213 and the second oblique side 214, and the first oblique side 213 and the second oblique side 214 are approximately parallel to the first oblique side 27.

[0040] Preferably, the second feed line 22 includes a horizontal extension portion 221 located at the upper end, a widened portion 222 located in the middle, and a connecting portion 223 located at the bottom end, and the horizontal extension portion 221 extends horizontally to the left, the widened portion 222 gradually widens upward from bottom to top, and the connecting portion 223 extends downward to the bottom edge of the dielectric plate 2.

[0041] Preferably, Figure 5 As shown, there are four lines on the signal phase branch board 3, which are defined as line A1, line A2, line A3 and line A4 respectively, and have a phase difference of 90° in the clockwise direction. In order to feed the above-mentioned four second feed lines 22 to form circularly polarized radiation waves, the four lines are welded and connected to the first feed lines 21 on the four dielectric plates 2 one by one, and the energy is transmitted to the first feed lines 21.

[0042] Preferably, a main line A0 is arranged on the signal phase branch board 3, and the main line A0 is connected to the line port K1, one end of the main line A0 is connected to the line port K2, and the other end is connected to the line port K3, wherein the line port K2 is respectively connected to a line A1 and a line A4, and the line port K3 is respectively connected to a line A2 and a line A3.

[0043] The line is directly connected to the first feeder 21, and a high-frequency current is excited on the first feeder 21. The second feeder 22 is close to the first feeder 21, and a capacitive effect is generated between the two. A current of the same frequency is induced on the second feeder 22, which is equivalent to the energy on the first feeder 21 being coupled to the second feeder 22 through an equivalent capacitor.

[0044] Coupled feeding is equivalent to introducing a matching network. An equivalent capacitor is formed between the first feeder 21 and the second feeder 22. Similarly, an equivalent capacitor is formed between the second feeder 22 and the base 1. The current on the second feeder 22 will be coupled to the base 1. The current on the base 1 is transmitted to the feeding position of the first feeder 21 to form a current loop and form an equivalent inductance. This is equivalent to connecting capacitors and inductors in series to the circuit, which can play a role in circuit tuning, improve the impedance matching effect, and thus expand the bandwidth.

[0045] Preferably, combined with Figure 7 and Figure 8 A supporting foot 4 is provided on the base 1 . The supporting foot 4 has an inclined supporting surface 41 . The supporting surface 41 is used to fit the outer surface of the supporting medium plate 2 to enhance the firmness of the medium plate 2 .

[0046] Further preferably, the support foot 4 has a vertically opened fixing groove 42, and a screw hole 421 for fixing is opened on the bottom surface of the fixing groove 42, for example, the support foot 4 is fixed on a base for mounting an antenna.

[0047] Preferably, Figure 2 and 3 As shown, it also includes a support frame 5, which is arranged on the signal phase branch plate 3. The support frame 5 includes a support plate 51 and a support beam 52. There are four support plates 51 and four support beams 52, and the four support plates 51 are surrounded and enclosed. The four support beams 52 are surrounded and enclosed to form a rectangular support. Each support beam 52 is connected to a support plate 51, and the side wall of each support beam 52 is correspondingly connected to the upper part of a support plate 51. The lower part of the support plate 51 is tilted inward, and the angle formed by the support plate 51 and the signal phase branch plate 3 is the same as the angle formed by the dielectric plate 2 and the signal phase branch plate 3. The support plate 51 is used to fit the inner surface of the supporting dielectric plate 2 to enhance the firmness of the dielectric plate 2, and then cooperate with the above-mentioned support feet 4 to support the outer surface of the dielectric plate 2 to further enhance the stability and firmness of the dielectric plate 2.

[0048] Preferably, the inwardly inclined angle of the lower portion of the support plate 51 ranges from 20° to 70°.

[0049] Preferably, the support plate 51 and the support beam 52 are combined with each other on a surface, and the surface where the support beam 52 and the support plate 51 are combined is an inclined surface, and the angle of the inclined surface is the same as the inward inclination angle of the lower part of the support plate 51.

[0050] Further preferably, the support surface 41 is provided with screw holes 411 for connecting with the medium plate 2 and the support plate 51 by screws or bolts, so as to enhance the connection stability between the structures.

[0051] Further preferably, the inclination angle of the support surface 41 is the same as the inclination angle of the support plate 51 .

[0052] Further preferably, the four support beams 52 are enclosed to form a square, which is beneficial for uniform support of the support beams 52 .

[0053] Further preferably, the lower portions of the four support plates 51 are inclined inward, that is, the opening formed by the upper edges of the four support plates 51 is larger than the opening formed by the lower edges of the four support plates 51. This allows the lower edges of the support plates 51 to be stably supported on the one hand, and on the other hand, it can also reduce the space area occupied by the lower edge support of the support plates 51, thereby reducing the overall volume of the support frame 5.

[0054] Preferably, the inclination angle of the support plate 51 is the same as the inclination angle of the medium plate 2 .

[0055] Preferably, the width of the support plate 51 gradually increases from bottom to top, and the body of the support plate 51 gradually tilts leftward from bottom to top, in order to better fit the dielectric plate 2 .

[0056] Preferably, a plurality of mutually cross-connected reinforcing ribs 511 are provided on the body of the support plate 51 . The provision of the reinforcing ribs 511 enhances the structural firmness of the support plate 51 and enhances the supporting stability of the support plate 51 .

[0057] Preferably, combined Figure 4 and Fig. 9The support plate 51 is a straight hexagonal structure as a whole, including a first horizontal side 101 and a second horizontal side 102 arranged horizontally and in parallel, the first horizontal side 101 is located at the upper part, the second horizontal side 102 is located at the lower part, and the length of the first horizontal side 101 is greater than the length of the second horizontal side 102; it also includes a first vertical side 103 and a second vertical side 104 arranged vertically and in parallel, the first vertical side 103 is located at the upper part, and its upper end is combined with the left end of the first horizontal side 101, and the second vertical side 104 is located at the lower part, and its lower end is combined with the right end of the second horizontal side 102; it also includes a first inclined side 105 and a second inclined side 106 arranged obliquely, the upper end of the first inclined side 105 is connected to the lower end of the first vertical side 103, the lower end of the first inclined side 105 is connected to the left end of the second horizontal side 102, the upper end of the second inclined side 106 is connected to the right end of the first horizontal side 101, and the lower end of the second inclined side 106 is connected to the upper end of the second vertical side 104, and the shape of the support plate 1 is adapted to the shape of the medium plate 2.

[0058] Further preferably, first fixing holes 109 are provided on the four edges of the support plate 51. Similarly, fixing holes 29 for screw connection with the first fixing holes 109 are also provided on the dielectric plate 2, so as to facilitate screw fixing connection between the two.

[0059] Preferably, support foot fixing holes are provided on the lower edge of the support plate 51, and the support foot fixing holes include a first support foot fixing hole 107 and a second support foot fixing hole 108. The first support foot fixing hole 107 is located on the lower left side of the support plate 1, and the second support foot fixing hole 108 is located on the lower right side of the support plate 51. Similarly, screw holes 201 corresponding to the support foot fixing holes are respectively provided on the left and right sides of the lower part of the medium plate 2, that is, the screw holes 201 of the medium plate 2, the support foot fixing holes and the screw holes 411 are fastened together by screws, so that the support foot 4 fits the support medium plate 2 and the support plate 51.

[0060] Preferably, the support frame 5 is made of nylon.

[0061] Preferably, the support beam 52 and the support plate 51 are integrally formed to make the structure more solid, or the support beam 52 and the support plate 51 are in surface contact, that is, the edge where the support beam 52 and the support plate 51 are in contact is an inclined surface, which is convenient for fitting to the surface of the support plate 51.

[0062] Preferably, the size of the base 1 is: 480 mm long*480 mm wide.

[0063] Preferably, the base 1 includes a base body 11 and a cover plate 12. A base body opening 111 that passes through the base body 11 from top to bottom is provided in the middle of the base body 11. The base body 11 has a cavity inside, which is connected to the outside downward and to the base body opening 111 upward. The cover plate 12 is arranged at the bottom of the base body 11, and covers the cavity.

[0064] Preferably, a navigation positioning antenna is provided on the base 1. Specifically, two diagonal positions of the base 1 are respectively provided with a navigation positioning antenna for positioning and navigation.

[0065] like Fig.10 The standing wave ratio of this wide-beam UHF band satellite communication antenna reaches 1.76, which meets the design requirement of a standing wave ratio of less than 2.0.

[0066] Based on the above embodiments, the present invention discloses a wide-beam UHF frequency band satellite communication antenna, comprising a base, a plurality of dielectric plates and a signal phase shunt plate, wherein the plurality of dielectric plates are arranged on the signal phase shunt plate, and the dielectric plates and the signal phase shunt plate form an angle, a feeder is provided on the dielectric plate, the signal phase shunt plate is horizontally arranged on the base, and the signal phase shunt plate has a plurality of lines, and the lines are connected to the feeder. The wide-beam UHF frequency band satellite communication antenna is small in size, light in weight, has a firm structure and high reliability, and has the advantages of a wide beam.

[0067] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A wide beam UHF band satellite communication antenna, It is characterized in that It comprises a base, a plurality of dielectric plates and a signal phase shunt plate, wherein the plurality of dielectric plates are arranged on the signal phase shunt plate, and the dielectric plates and the signal phase shunt plate form an angle, the dielectric plate has a feeder, the signal phase shunt plate is horizontally arranged on the base, the signal phase shunt plate has a plurality of lines, and the lines are connected to the feeder; There are four dielectric plates, which are arranged around the signal phase splitter plate, and the size of the opening formed by the upper edges of the plurality of dielectric plates is larger than the size of the opening formed by the lower edges of the dielectric plates; the acute angle formed by the dielectric plate and the signal phase splitter plate is in the range of 20°-70°; The medium plate is a straight hexagonal structure as a whole, including a first horizontal side and a second horizontal side arranged horizontally in parallel, the first horizontal side is located at the upper part, the second horizontal side is located at the lower part, and the length of the first horizontal side is greater than the length of the second horizontal side; it also includes a first vertical side and a second vertical side arranged vertically in parallel, the first vertical side is located at the upper part, and its upper end is combined with the left end of the first horizontal side, the second vertical side is located at the lower part, and its lower end is combined with the right end of the second horizontal side; it also includes a first hypotenuse and a second hypotenuse arranged obliquely, the upper end of the first hypotenuse is connected to the lower end of the first vertical side, the lower end of the first hypotenuse is connected to the left end of the second horizontal side, the upper end of the second hypotenuse is connected to the right end of the first horizontal side, and the lower end of the second hypotenuse is connected to the upper end of the second vertical side.

2. The wide beam UHF band satellite communication antenna according to claim 1, It is characterized in that The feed line includes a first feed line and a second feed line. From bottom to top along the height direction of the dielectric plate, the first feed line and the second feed line gradually tilt leftward, and the width of the first feed line is smaller than that of the second feed line.

3. The wide beam UHF band satellite communication antenna according to claim 2, It is characterized in that The width of the second feed line gradually increases from bottom to top along the height direction of the dielectric plate.

4. The wide beam UHF band satellite communication antenna according to claim 3, It is characterized in that There are four lines, and they are arranged in a clockwise direction with a phase difference of 90°. The four lines are welded and connected to the first feed lines on the four dielectric plates in a one-to-one correspondence.

5. The wide beam UHF band satellite communication antenna according to claim 4, It is characterized in that The base is provided with supporting feet, and the supporting feet have an inclined supporting surface, and the supporting surface is used to fit and support the outer surface of the medium plate.

6. The wide beam UHF band satellite communication antenna according to claim 5, It is characterized in that It also includes a support frame, which is arranged on the signal phase branch plate. The support frame includes a support plate and a support beam. There are four support plates and four support beams, and the four support plates are surrounded and enclosed. The four support beams are surrounded and enclosed to form a rectangular support. Each support beam is connected to a support plate, and the angle formed by the support plate and the signal phase branch plate is the same as the angle formed by the dielectric plate and the signal phase branch plate. The support plate is used to fit and support the inner surface of the dielectric plate, and the shape of the support plate is adapted to the shape of the dielectric plate.

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