An L-band planar dipole

Abstract

The present invention discloses an L-band planar dipole antenna, belonging to the field of antenna technology. It primarily comprises an antenna body, a feed post, a matching adjustment plate, a radio frequency socket, and a metal reflector. The antenna body comprises a radiating arm, a post, and a base, wherein the radiating arm is parallel to the metal reflector. The present invention achieves broadband and high-gain antenna characteristics through the use of a planar dipole form factor, and achieves easy adjustment through the design of the matching adjustment plate. The entire antenna utilizes an all-metal structure, ensuring structural stability and reliable performance.

Description

Technical Field

[0001] The present invention relates to the technical field of antennas, and in particular to an L-band planar dipole. Background Art

[0002] With the rapid development of modern information technology, electronic equipment in fields such as electronic countermeasures, radio communications, and modern radar is constantly being updated and iterated. The amount of information transmitted and processed is increasing, placing higher demands on the bandwidth of antennas used as radio front-end equipment. Applications such as electronic countermeasures and long-distance communications require antennas to have certain power tolerance characteristics. Furthermore, the use environments of platforms such as airborne, vehicle-mounted, and ship-mounted platforms require antennas to have structural stability and reliability.

[0003] As the most common antenna type in engineering applications, dipole antennas are widely used in communications, broadcasting, television, radar, navigation, remote sensing testing, and other fields. However, traditional dipoles have limited bandwidth, poor directivity, and low gain. Furthermore, they struggle to balance structural stability, high power handling, and ease of fabrication. Therefore, there is an urgent need to address the design challenges of dipoles, including broadband, ease of fabrication, high power handling, and structural stability. Summary of the Invention

[0004] In light of this, the present invention provides an L-band planar dipole. This antenna utilizes an all-metal processing technique to achieve high reliability and stability, while also providing a higher power tolerance. The metal reflector design enables directional radiation and higher gain. The optimized design of key components, such as the feed post and antenna radiating arm, achieves broadband characteristics.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An L-band planar dipole includes an antenna body, a feed post, a radio frequency socket, and a metal reflector. The antenna body is mainly composed of a radiation arm, a post, and a base, and the three are integrally formed from metal.

[0007] There are two upright posts, both standing on the upper surface of the base; both posts are plate-shaped, arranged in parallel, and there is a gap between them;

[0008] There are two radiating arms, one corresponding to each column, and vertically interconnected to form an inverted L-shaped structure; the radiating arm is composed of a radiating arm surface and a reinforcing rib located at the bottom of the radiating arm surface, and both sides of the radiating arm surface have flanges with a bending angle of 90°; the flanges are perpendicular to the column;

[0009] The inner end of one of the radiating arms extends toward the other column; the feed column is located between the two columns, the top of the feed column is connected to the extension of the radiating arm by a screw, the center of the bottom end of the feed column is opened along its axis, and a threaded hole is opened on the side of the feed column, the threaded hole is perpendicular to and directly connected to the light hole, the inner core of the RF socket is inserted into the light hole, and the inner core is supported by the top screw in the threaded hole to achieve electrical connection;

[0010] The inner core of the radio frequency socket has no contact with the metal reflector plate, and the inner core has no contact with the base.

[0011] The base is connected and fixed to the upper surface of the metal reflector.

[0012] Furthermore, it also includes two matching adjustment plates; the two ends of each matching connecting plate are respectively connected to the two columns; the two matching connecting plates are respectively located on both sides of the two columns, and the two matching adjustment plates and the columns form a ring structure.

[0013] The beneficial effects of the above technical solution of the present invention are:

[0014] 1. The present invention achieves high reliability and stability of the antenna by adopting an all-metal processing technology, and the all-metal material has a higher power resistance value;

[0015] 2. The present invention realizes directional radiation of dipoles through the design of metal reflectors, resulting in higher gain;

[0016] 3. The present invention achieves the broadband characteristics of the dipole through the design of key parts such as the feed post and the antenna body radiation arm;

[0017] 4. The present invention solves the problem of easy loosening of the matching adjustment plate by adopting a method of interconnecting the matching adjustment plate and the column screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of an antenna in an embodiment of the present invention.

[0019] Figure 2 yes Figure 1 Schematic diagram of the antenna body.

[0020] Figure 3 yes Figure 1 Schematic diagram of the center feed column and RF socket.

[0021] In the figure: 1. Antenna body, 2. Feeding post, 3. Matching adjustment plate, 4. RF socket, 5. Metal reflector, 6. Extension of antenna body radiation arm, 7. Reinforcement rib of antenna body radiation arm, 8. Radiation surface of antenna body radiation arm, 9. Antenna body column, 10. Antenna body base,

[0022] 11. Threaded hole for connecting the feed post and the extended part of the radiation arm, 12. Feed post through hole, 13. Feed post threaded hole, 14. RF socket inner core. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] An L-band planar dipole includes an antenna body, a feed post, a matching adjustment plate, a radio frequency socket, and a metal reflector. The antenna body is connected to the feed post, the matching adjustment plate, the radio frequency socket, and the metal reflector by screws. The entire structure is centered on the antenna body, connecting the various components into a whole.

[0025] The antenna body is composed of a radiation arm, a column and a base, and the three are integrally formed from a piece of metal;

[0026] The radiating arm of the antenna body is composed of a radiating arm surface and a bottom reinforcement rib. The outer side of the radiating arm surface is designed with a flange, which is perpendicular to the main surface of the radiating arm, and the entire radiating arm surface is in an inverted "U" shape;

[0027] There is a pair of radiating arms and columns, and the radiating arms and columns are vertically interconnected one by one to form a symmetrical inverted "L" shape, with one radiating arm partially extending toward the opposite column;

[0028] Furthermore, the extension portion does not contact the opposite side column, and a certain gap is left between the two;

[0029] The two columns are plate-like structures, arranged in parallel with a certain gap between them, with the upper ends vertically interconnected with the radiating arms and the lower ends vertically interconnected with the antenna base;

[0030] The base is vertically interconnected with the lower end of the column, and through holes are opened on both sides of the base for connecting and fixing with the metal reflector.

[0031] The feed post is located between the antenna body columns and is a metal cylinder. The upper end surface of the feed post and the extended portion of the radiating arm are interconnected by screws. A certain gap is left between the lower end surface of the feed post and the base of the antenna body. The center of the lower end surface is opened along the axis, and a threaded hole is opened on the side of the feed post. The threaded hole is perpendicular to and directly connected to the light hole.

[0032] The RF socket is mounted on the base of the antenna body by screws, and its inner core is inserted upward into the optical hole of the feed post, and is supported by the top screw in the threaded hole on the feed post to achieve electrical connection between the RF socket and the feed post;

[0033] Furthermore, the inner core diameter of the radio frequency socket is 1.3 mm;

[0034] There is a pair of matching adjustment plates, which are symmetrically arranged front to back. They are installed on the side of the antenna body column by screws and are at a certain distance from the base. The matching adjustment plates and the column together form a metal ring-shaped closed space.

[0035] Reference Figure 1 In this embodiment, an L-band planar dipole includes an antenna body (1 in the figure), a feed post (2 in the figure), a matching adjustment plate (3 in the figure), a radio frequency socket (4 in the figure), and a metal reflector (5 in the figure). The antenna body is connected to the feed post, matching adjustment plate, radio frequency socket, and metal reflector by screws. The entire structure is centered on the antenna body, connecting the various components into a whole.

[0036] Reference Figure 2 The antenna body is composed of a radiation arm, a column (9 in the figure) and a base (10 in the figure), and the three are integrally formed from a piece of metal; the radiation arm of the antenna body is composed of a radiation arm surface (8 in the figure) and a bottom reinforcement rib (7 in the figure), and the outer side of the radiation arm surface is designed with a flange, which is perpendicular to the main surface of the radiation arm. The entire radiation arm surface is in an inverted "U" shape. In this embodiment, the flange width is 8mm and the radiation arm length is 30mm;

[0037] Reference Figure 2 There is a pair of radiating arms and columns, and the radiating arms and columns are vertically interconnected one by one, forming a symmetrical inverted "L" shape. One of the radiating arms extends toward the opposite column (8 in the figure), and the extended portion does not contact the opposite column. A certain gap is left between the two. In this embodiment, the width of the gap is 3mm;

[0038] Reference Figure 2 The two columns are plate-shaped structures, arranged in parallel with a certain gap between them. The upper ends are vertically interconnected with the radiating arms, and the lower ends are vertically interconnected with the base of the antenna body. In this embodiment, the column height is 53mm, the width is 18mm, and the distance between the two columns is 18mm.

[0039] Reference Figure 2 The base is vertically interconnected with the lower end of the column, and through holes are opened on both sides of the base for connecting and fixing with the metal reflector;

[0040] Reference Figure 1 The feed post is located between the antenna body columns and is a metal cylinder. In this embodiment, the feed post has a diameter of 10mm and a height of 40mm. A threaded hole (11 in the figure) is opened on the upper end of the feed post and is interconnected with the extended portion of the radiating arm via screws. A certain gap is left between the lower end of the feed post and the base of the antenna body. The center of the lower end face has an optical hole (12 in the figure) along the axis, and a threaded hole (13 in the figure) is opened on the side of the feed post. The threaded hole is perpendicular to and directly connected to the optical hole.

[0041] Reference Figure 1 and Figure 3 The RF socket is mounted on the base of the antenna body by screws, and its inner core (14 in the figure) is inserted upward into the optical hole of the feed post, and the inner core is supported by the top screw in the threaded hole on the feed post to achieve electrical connection between the RF socket and the feed post. In this embodiment, the diameter of the inner core of the RF socket is 1.3 mm;

[0042] Reference Figure 1 There is a pair of matching adjustment plates, which are symmetrical front and back. They are installed on the side of the antenna body column by screws, at a certain distance from the base. The matching adjustment plates and the column together form a metal ring-shaped closed space. In this embodiment, the height of the center of the matching adjustment plate from the metal reflector is 20 mm.

[0043] The above description is only a preferred embodiment of the present invention. Any modifications made within the scope of the claims of the present invention should be equally varied and fall within the scope of the claims of the present invention.

Claims

1. An L-band planar dipole, comprising an antenna body, a feed post, a radio frequency socket, and a metal reflector, characterized in that: The antenna body is composed of a radiation arm, a column and a base, and the three are integrally formed of metal; There are two upright posts, both standing on the upper surface of the base; both posts are plate-shaped, arranged in parallel, and there is a gap between them; There are two radiating arms, one corresponding to each column, and vertically interconnected to form an inverted L-shaped structure; the radiating arm is composed of a radiating arm surface and a reinforcing rib located at the bottom of the radiating arm surface, and both sides of the radiating arm surface have flanges with a bending angle of 90°; the flanges are perpendicular to the column; The inner end of one of the radiating arms extends toward the other column; the feed column is located between the two columns, the top of the feed column is connected to the extension of the radiating arm by a screw, the center of the bottom end of the feed column is opened along its axis, and a threaded hole is opened on the side of the feed column, the threaded hole is perpendicular to and directly connected to the light hole, the inner core of the RF socket is inserted into the light hole, and the inner core is supported by the top screw in the threaded hole to achieve electrical connection; The inner core of the radio frequency socket has no contact with the metal reflector, and the inner core has no contact with the base; The base is connected and fixed to the upper surface of the metal reflector; it also includes two matching adjustment plates; the two ends of each matching connecting plate are respectively connected to the two pillars; the two matching connecting plates are respectively located on both sides of the two pillars, and the two matching adjustment plates and the pillars form a ring structure; the inner core diameter of the RF socket is 1.3mm.

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