CN-224217700-U - Radiating element and base station antenna

Abstract

The utility model discloses a radiating unit and a base station antenna, wherein the radiating unit comprises a base, a radiator and at least one feed component, a through hole is formed in the base, the radiator is connected to the base through a supporting arm, the radiator comprises at least one polarization formed by symmetrical dipole binary arrays, one feed component is arranged corresponding to one polarized dipole binary array, the feed component comprises a combining piece, a connecting piece and two electric coupling substrates, coupling circuits are arranged on the electric coupling substrates, each coupling circuit is electrically coupled with two dipoles in one dipole binary array respectively, the electric coupling substrates are fixed on the supporting arm, the combining piece is arranged on the base, the combining piece and the base form a microstrip structure or an air microstrip structure together, two ends of the combining piece form connecting ends respectively, and the two connecting ends of the combining piece are welded with the coupling circuits on the two electric coupling substrates respectively, and the connecting piece penetrates through the through hole and is connected with the combining piece. The radiating unit has novel structure and good intermodulation stability.

Inventors

• LIAO BAIHUI
• WANG DEZHI
• LI KAIHUI

Assignees

• 深圳市鑫龙通信技术有限公司
• 上海东洲罗顿通信股份有限公司

Dates

Publication Date

20260508

Application Date

20250514

Claims (10)

1. 1. A radiation unit, characterized by comprising The base is provided with a through hole; The radiator is connected to the base through a supporting arm and comprises at least one polarization formed by a symmetrical dipole binary array; The feed assembly comprises a combining part, a connecting piece and two electric coupling substrates, wherein the electric coupling substrates are provided with coupling circuits, each coupling circuit is electrically coupled with two dipoles in one dipole binary array, the electric coupling substrates are fixed on the supporting arms, the combining part is arranged on the base, the combining part and the base form a microstrip structure or an air microstrip structure together, two ends of the combining part form connecting ends respectively, the two connecting ends of the combining part are welded with the coupling circuits on the two electric coupling substrates respectively, the connecting piece penetrates through the through holes, one end of the connecting piece is connected with the combining part, and the other end of the connecting piece is connected with an external feed cable.
2. 2. The radiating element of claim 1, wherein the combiner is integrally formed with the connector or the connector is directly or coupled to the combiner.
3. 3. The radiating element of claim 1, wherein the connection location of the connector to the combiner is equal to the transmission path between the two connection ends of the combiner.
4. 4. The radiating element of claim 1, further comprising an insulating member, wherein the combiner is secured to the base by the insulating member.
5. 5. The radiating element of claim 4, wherein the insulating member is thermally fused to the combiner and the base, respectively.
6. 6. The radiating element of claim 1, wherein the electrically coupled substrate is secured to the support arm by a snap fastener.
7. 7. The radiating element of claim 6, wherein the electrically coupled substrate is provided with a positioning hole, and the support arm is provided with a positioning protrusion that mates with the positioning hole.
8. 8. The radiating element of claim 7, wherein the positioning protrusion is provided with a positioning groove for positioning the fastener.
9. 9. The radiating element of claim 8, wherein the wall surface of the positioning slot is a second guiding surface for guiding the fastening element, and the second guiding surface is a slope or an arc surface.
10. 10. Base station antenna, characterized by comprising a radiating element according to any of claims 1 to 9.

Description

Radiating element and base station antenna Technical Field The present utility model relates to the field of antenna technologies, and in particular, to a radiating element and a base station antenna. Background Chinese patent application number 202311269103.3 discloses a radiating element that uses coaxial cable as the feed arm to be soldered to the combiner. However, during actual manufacturing, the solder joint at the junction of the coaxial cable and the combiner is not well controlled, so that intermodulation stability of the radiating element is low. Disclosure of utility model The utility model aims to solve the technical problem of providing a radiating element with high intermodulation stability and a base station antenna with the radiating element. In order to solve the technical problems, the utility model adopts the technical scheme that the radiating unit comprises: the base is provided with a through hole; The radiator is connected to the base through a supporting arm and comprises at least one polarization formed by a symmetrical dipole binary array; The feed assembly comprises a combining part, a connecting piece and two electric coupling substrates, wherein the electric coupling substrates are provided with coupling circuits, each coupling circuit is electrically coupled with two dipoles in one dipole binary array, the electric coupling substrates are fixed on the supporting arms, the combining part is arranged on the base, the combining part and the base form a microstrip structure or an air microstrip structure together, two ends of the combining part form connecting ends respectively, the two connecting ends of the combining part are welded with the coupling circuits on the two electric coupling substrates respectively, the connecting piece penetrates through the through holes, one end of the connecting piece is connected with the combining part, and the other end of the connecting piece is connected with an external feed cable. Further, the combining element and the connecting element are integrally formed, or the connecting element and the combining element are directly connected or coupled. Further, the connection position of the connecting piece and the combining piece is equal to the transmission path between the two connection ends of the combining piece. Further, the device also comprises an insulating part, and the combining part is fixed on the base through the insulating part. Further, the insulating piece is respectively connected with the combining piece and the base in a hot melting mode. Further, the electric coupling substrate is fixed on the supporting arm through a clamping piece. Further, a positioning hole is formed in the electric coupling substrate, and a positioning protrusion matched with the positioning hole is arranged on the supporting arm. Further, a positioning groove for positioning the buckle piece is formed in the positioning protrusion. Further, the wall surface of the positioning groove is a second guiding surface for guiding the fastening piece, and the second guiding surface is an inclined surface or an arc surface. In order to solve the technical problems, the utility model also adopts the following technical scheme that the base station antenna comprises the radiation unit. The radiating unit has the beneficial effects that the radiating unit is novel in structure, and the electric coupling substrate is used for replacing a coaxial line, so that compared with the welding of the combining piece and the coaxial line, the welding point of the welding of the combining piece and the electric coupling substrate is more controllable, the intermodulation stability of the radiating unit is improved, and the performance of the radiating unit is improved. Drawings FIG. 1 is a schematic diagram of a radiation unit; Fig. 2 is an enlarged view of detail a in fig. 1; FIG. 3 is a schematic diagram of a portion of a radiation unit; FIG. 4 is a schematic structural view of a clip in a radiating unit; fig. 5 is a schematic structural diagram II of a part of the structure of the radiating element. Description of the reference numerals: 1. A base, 11, a through hole; 2. A radiator; 3. The power supply assembly, 31, the combiner, 311, the connecting end, 32, the connector, 33, the electric coupling substrate, 331, the positioning hole, 34, the coupling circuit, 341, the first section, 342, the second section, 343 and the third section; 4. support arm 41, positioning projection 411, first guide surface 412, positioning groove 413, second guide surface; 5. an insulating member; 6. A clamping piece. Detailed Description In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings. Referring to fig. 1 to 5, the radiation unit includes: the base 1 is provided with a through hole 11; A radiator 2, wherein