Radio frequency coaxial cable assembly of clustered low-loss high-phase-consistency switching structure

Abstract

According to the radio frequency coaxial cable assembly of the cluster-type low-loss high-phase-consistency switching structure, the cluster-type radio frequency coaxial cable assembly is divided into three sections, and small-specification radio frequency coaxial wires which are matched with radio frequency connector contact bodies and are small in wire diameter and large in loss are used at the two ends of the cluster-type radio frequency coaxial cable assembly. The middle switching part uses a large-specification radio frequency coaxial wire with a larger wire diameter and smaller loss, the front section and the rear section are connected together through the radio frequency self-locking connector socket and the self-locking radio frequency connector plug to form a complete cluster type radio frequency cable assembly, and by using a radio frequency connector switching technology, the radio frequency cable assembly is convenient to assemble and disassemble, and the service life of the cable assembly is prolonged. The original specification of the radio frequency coaxial wire at the middle part is changed, and the radio frequency coaxial wire at the switching part is converted into the wire with smaller insertion loss index, so that the insertion loss of the cable assembly is reduced, and the phase consistency of the cable assembly is ensured through the pretreatment process before the cable assembly is assembled and the phase matching process in the assembly process.

Description

Technical Field

[0001] The utility model relates to the technical field of cable assemblies, in particular to a radio frequency coaxial cable assembly with a clustered low-loss and high-phase consistency transition structure. Background Art

[0002] Since the cable assembly is a bundled type and the RF coaxial wire adapted to the RF connector contact body has a small wire diameter, the insertion loss of the cable assembly is relatively large, causing the signal to be severely attenuated during transmission. The phase consistency of the cable assembly cannot be guaranteed, affecting the signal transmission quality.

[0003] Therefore, in view of the shortcomings of the existing technology, it is necessary to provide a radio frequency coaxial cable assembly with a clustered low-loss and high phase consistency transition structure to solve the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of the present invention is to avoid the shortcomings of the prior art and provide a clustered RF coaxial cable assembly with a low-loss and high-phase consistency transition structure. The clustered RF coaxial cable assembly is divided into three sections. Small-sized RF coaxial wires with smaller wire diameter and larger loss that are adapted to the RF connector contact body are used at both ends. Large-sized RF coaxial wires with larger wire diameter and smaller loss are used in the middle transition part. The front and rear sections are connected together by a RF self-locking connector socket and a self-locking RF connector plug to form a complete clustered RF cable assembly. By using RF connector transition technology, the original RF coaxial wire specifications in the middle part are changed, and the RF coaxial wires in the transition part are converted to wire specifications with smaller insertion loss indicators, thereby reducing the insertion loss of the cable assembly. The phase consistency of the cable assembly is ensured by the pretreatment process before assembly of the cable assembly and the phase matching process during assembly.

[0005] The above-mentioned purpose of the present invention is achieved through the following technical means.

[0006] Provided is a clustered, low-loss, high-phase consistency RF coaxial cable assembly, comprising an RF connector, a tail accessory installed on the RF connector, a large-size RF coaxial cable connected to the RF connector, the large-size RF coaxial cable running through the tail accessory, three groups of branches provided at the other end of the large-size RF coaxial cable, each group of branches connected to a self-locking RF connector plug, a self-locking RF connector socket installed on the self-locking RF connector plug, and a small-size RF coaxial cable connected to the self-locking RF connector socket.

[0007] Specifically, both the large - size RF coaxial cable and the small - size RF coaxial cable are provided with an outer sheath inside which there is an outer shielding layer, inside the outer shielding layer there is an inner shielding layer, inside the inner shielding layer there is a wire insulation layer, and inside the wire insulation layer there is an inner conductor.

[0008] Specifically, the RF connector includes a connector body and a contact body, and the contact body is installed inside the connector body.

[0009] Specifically, two sets of pressure plates are installed on the tail accessory, and a screw is installed between the two sets of pressure plates.

[0010] Specifically, heat - shrinkable tubes are provided beside the tail accessory, the self - locking RF connector plug, and the self - locking RF connector socket.

[0011] The utility model divides the bundled RF coaxial cable assembly into three sections. Small - size RF coaxial wires with a smaller diameter and larger loss, which are adapted to the contact body of the RF connector, are used at both ends, and large - size RF coaxial wires with a larger diameter and smaller loss are used in the middle transfer part. The front and rear sections are connected together through the RF self - locking connector socket and the self - locking RF connector plug to form a complete bundled RF cable assembly. By using the RF connector transfer technology, the original RF coaxial wire specification in the middle part is changed, and the RF coaxial wire in the transfer part is converted into a wire specification with a smaller insertion loss index, thereby reducing the insertion loss of the cable assembly. The phase consistency of the cable assembly is ensured through the pre - treatment process before the assembly of the cable assembly and the phase - matching process during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present utility model is further described with reference to the accompanying drawings, but the content in the drawings does not constitute any limitation to the present utility model.

[0013] Figure 1 is the front view of a bundled low - loss and high - phase - consistency transfer - structure RF coaxial cable assembly of the present utility model.

[0014] Figure 2 is the structural schematic diagram of the RF connector in a bundled low - loss and high - phase - consistency transfer - structure RF coaxial cable assembly of the present utility model.

[0015] Figure 3 is the structural schematic diagram of the tail accessory in a bundled low - loss and high - phase - consistency transfer - structure RF coaxial cable assembly of the present utility model.

[0016] Figure 4 is the structural schematic diagram of the large - size RF coaxial cable in a bundled low - loss and high - phase - consistency transfer - structure RF coaxial cable assembly of the present utility model

[0017] FromFigures 1 to 4 Including:

[0018] 1. RF connector;

[0019] 2. Tail attachment;

[0020] 3. Large-size RF coaxial cable;

[0021] 4. Self-locking RF connector plug;

[0022] 5. Self-locking RF connector socket;

[0023] 6. Small-sized RF coaxial cable;

[0024] 7. Outer sheath;

[0025] 8. Outer shielding layer;

[0026] 9. Inner shielding layer;

[0027] 10. Wire insulation layer;

[0028] 11. Inner conductor;

[0029] 12. Contact body;

[0030] 13. Connector body;

[0031] 14. Press plate;

[0032] 15. Screws;

[0033] 16. Heat shrink tubing. DETAILED DESCRIPTION

[0034] The present invention will be further described with reference to the following embodiments.

[0035] Example 1.

[0036] like Figures 1-4 As shown, a clustered low-loss and high-phase consistency RF coaxial cable assembly includes an RF connector 1, a tail accessory 2 is installed on the RF connector 1, a large-size RF coaxial cable 3 is connected to the RF connector 1, the large-size RF coaxial cable 3 passes through the tail accessory 2, and three groups of branches are provided at the other end of the large-size RF coaxial cable 3, each group of branches is connected to a self-locking RF connector plug 4, a self-locking RF connector socket 5 is installed on the self-locking RF connector plug 4, and a small-size RF coaxial cable 6 is connected to the self-locking RF connector socket 5.

[0037] The large - gauge RF coaxial wire connected by the RF connector 1 has a smaller wire diameter and a larger insertion loss. The intermediate transition section is a small - gauge RF coaxial cable 6 with a larger wire diameter and a smaller insertion loss. The two types of wires are of the same series, with the same composition materials and structures, ensuring phase consistency.

[0038] The self - locking RF connector socket 5 fitted on the self - locking RF connector plug 4 has a self - locking function, which can effectively prevent the disconnection at the docking part of the cable assembly during use and achieve signal transmission.

[0039] Both the large - gauge RF coaxial cable 3 and the small - gauge RF coaxial cable 6 are provided with an outer sheath 7 inside. Inside the outer sheath 7, there is an outer shielding layer 8. Inside the outer shielding layer 8, there is an inner shielding layer 9. Inside the inner shielding layer 9, there is a wire insulation layer 10. Inside the wire insulation layer 10, there is an inner conductor 11.

[0040] The large - gauge RF coaxial cable 3 and the small - gauge RF coaxial cable 6 involved are two types of RF wires of the same series, only with different specifications. Their structures are the same, and the materials and processing technologies used are the same.

[0041] The large - gauge RF coaxial cable 3 and the small - gauge RF coaxial cable 6 are divided into five - layer structures in total. The center is a silver - plated copper inner conductor 11. The outer of the inner conductor 11 is composed of a low - density polytetrafluoroethylene by a wrapping process to form the RF coaxial wire insulation layer 10. The outer of the insulation layer is composed of a silver - plated copper tape by a wrapping process to form the inner shielding layer 9 of the RF coaxial wire. The outer of the inner shielding layer 9 is composed of silver - plated aramid filaments by a braiding process to form the outer shielding layer 8 of the RF coaxial wire. The outer sheath 7 is composed of perfluoroethylenepropylene material.

[0042] The RF connector 1 includes a connector body 13 and a contact body 12. The contact body 12 is installed inside the connector body 13. The contact body 12 and the large - gauge RF coaxial cable 3 are connected together by welding. The pin of the contact body 12 is welded to the inner conductor 11 of the RF coaxial wire, and the sleeve of the contact body 12 is welded to the outer shielding layer 8 of the large - gauge RF coaxial cable 3.

[0043] Two groups of pressing plates 14 are installed on the tail accessory 2. A screw 15 is installed between the two groups of pressing plates 14. The RF coaxial wire is fixed by the pressing plates 14 and the screw 15 to prevent the wire from twisting and loosening during use.

[0044] A heat shrink tube 16 is provided next to the tail accessory 2, the self-locking RF connector plug 4 and the self-locking RF connector socket 5. The heat shrink tube 16 used is a DW-type adhesive heat shrink tube 16. This type of heat shrink tube 16 has good environmental resistance and a shrinkage ratio of up to 4:1. Because the adhesive on its inner wall can effectively protect the tail accessory 2 of the RF connector 1 and the self-locking RF connector plug 4 and the self-locking RF connector socket 5 at the transition part, prevent them from being scratched, and improve transmission safety.

[0045] During the production process, the clustered RF coaxial cable assembly is divided into three sections. Small-sized RF coaxial wires with smaller wire diameter and higher loss that are compatible with the contact body 12 of the RF connector 1 are used at both ends. Large-sized RF coaxial wires with larger wire diameter and lower loss are used in the middle transition part. The front and rear sections are connected together through the RF self-locking connector socket and the self-locking RF connector plug 4 to form a complete clustered RF cable assembly. By using the RF connector 1 transition technology, the original RF coaxial wire specifications in the middle part are changed, and the RF coaxial wires in the transition part are converted to wire specifications with smaller insertion loss indicators, thereby reducing the insertion loss of the cable assembly. The phase consistency of the cable assembly is ensured by the pretreatment process before the cable assembly and the phase matching process during the assembly process.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A radio frequency coaxial cable assembly with a clustered low-loss and high phase consistency transition structure, characterized by: It includes a radio frequency connector, a tail accessory is installed on the radio frequency connector, a large - gauge radio frequency coaxial cable is connected to the radio frequency connector, the large - gauge radio frequency coaxial cable penetrates through the tail accessory, three groups of branches are provided at the other end of the large - gauge radio frequency coaxial cable, a self - locking radio frequency connector plug is connected to each group of branches, a self - locking radio frequency connector socket is fitted and installed on the self - locking radio frequency connector plug, and a small - gauge radio frequency coaxial cable is connected to the self - locking radio frequency connector socket.

2. The RF coaxial cable assembly with a clustered low-loss and high-phase consistency transition structure according to claim 1, characterized in that: Outer sheaths are provided inside both the large - gauge radio frequency coaxial cable and the small - gauge radio frequency coaxial cable. An outer shielding layer is provided inside the outer sheath. An inner shielding layer is provided inside the outer shielding layer. A wire insulation layer is provided inside the inner shielding layer. An inner conductor is provided inside the wire insulation layer.

3. The RF coaxial cable assembly with a clustered low-loss and high-phase consistency transition structure according to claim 2, characterized in that: The radio frequency connector includes a connector body and a contact body, and the contact body is installed inside the connector body.

4. The RF coaxial cable assembly with a clustered low-loss and high-phase consistency transition structure according to claim 3, characterized in that: Two groups of pressing plates are installed on the tail accessory, and a screw is installed between the two groups of pressing plates.

5. The RF coaxial cable assembly with a clustered low-loss and high-phase consistency transition structure according to claim 4, characterized in that: Heat - shrinkable tubes are provided beside the tail accessory, the self - locking radio frequency connector plug and the self - locking radio frequency connector socket.

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