Low-loss multi-channel multi-functional radio frequency cable assembly
By designing RF coaxial cables and connectors with non-equivalent electrical lengths and losses, signal splitting and combining, as well as power distribution, are achieved, solving the problem of high loss in RF coaxial cable assemblies and realizing low-loss, multi-channel, and multi-functional RF cable assemblies.
Patent Information
- Application Number
- CN202421507971.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The insertion loss of existing radio frequency coaxial cable assemblies is mainly generated by the inner and outer conductors. Increasing the conductor size can reduce the loss, but it will lead to a decrease in the operating frequency, making it difficult to operate within the original frequency range.
Design a low-loss, multi-channel, multi-functional RF cable assembly. Employ several RF coaxial cables and RF coaxial connectors at the beginning and end to ensure the non-equivalence of cable length and loss. Through 180-degree phase flipping and combinations of different loss values, achieve functions such as signal splitting, combining, and power distribution.
Without increasing cable size or reducing operating frequency, the cable assembly loss is significantly reduced, meeting the needs of multi-channel and multi-functional applications.
Smart Images
Figure CN223612814U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to radio frequency cable technical field especially relates to a low loss multi -channel multi -functional radio frequency cable assembly. BACKGROUND
[0002] The insertion loss of the radio frequency coaxial cable assembly is more than 90% generated by the radio frequency coaxial cable therein. The insertion loss of the radio frequency coaxial cable is more than 90% generated by the inner and outer conductors.
[0003] If the loss of the radio frequency coaxial cable assembly is reduced, the insertion loss of the radio frequency coaxial cable must be reduced, and the only effective way to significantly reduce the insertion loss of the radio frequency coaxial cable is to increase the size of the inner and outer conductors of the cable.
[0004] Therefore, a low loss multi -channel multi -functional radio frequency cable assembly needs to be designed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a low loss multi -channel multi -functional radio frequency cable assembly to overcome the above-mentioned deficiencies of the prior art.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0007] A low loss multi -channel multi -functional radio frequency cable assembly comprises a plurality of radio frequency coaxial cables, a one-to-many first end radio frequency coaxial connector arranged at the first end of the radio frequency coaxial cable, and a multi-in-one end radio frequency coaxial connector arranged at the end of the radio frequency coaxial cable, the multi-port end of the one-to-many first end radio frequency coaxial connector is connected with the first end of the radio frequency coaxial cable, and the multi-port end of the multi-in-one end radio frequency coaxial connector is connected with the end of the radio frequency coaxial cable.
[0008] Preferably, the radio frequency coaxial cables have the same electrical length.
[0009] Preferably, the first and end ends of the radio frequency coaxial cables are respectively connected with the same model of first end radio frequency coaxial connector and end radio frequency coaxial connector.
[0010] Preferably, the radio frequency coaxial cables are non-equal electrical length radio frequency coaxial cables.
[0011] Preferably, the radio frequency coaxial cables are phase-reversed by 180 degrees in electrical length.
[0012] Preferably, the radio frequency coaxial cables are non-equal loss radio frequency coaxial cables.
[0013] The beneficial effect of the present utility model is that: the technical scheme does not reduce the working frequency of the radio frequency coaxial cable and assembly, sets up the multi-channel radio frequency coaxial cable and the multifunctional radio frequency coaxial connector, meets the condition that the cable size is not increased and the working frequency is not reduced, and greatly reduces the loss of the cable assembly. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic view of a low-loss multi-channel multifunctional radio frequency cable assembly of the present utility model;
[0015] Figure 2 It is an embodiment of a low-loss multi-channel multifunctional radio frequency cable assembly of the present utility model;
[0016] Figure 3 It is another embodiment of a low-loss multi-channel multifunctional radio frequency cable assembly of the present utility model;
[0017] In the drawing: 1, radio frequency coaxial cable; 2, first end radio frequency coaxial connector; 3, end radio frequency coaxial connector. DETAILED DESCRIPTION
[0018] The technical scheme in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.
[0019] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.
[0020] REFERENCE Figure 1 A low-loss multi-channel multifunctional radio frequency cable assembly, which comprises a plurality of radio frequency coaxial cables 1, a multi-port first end radio frequency coaxial connector 2 arranged at the first end of the radio frequency coaxial cable, and a multi-in-one end radio frequency coaxial connector 3 arranged at the end of the radio frequency coaxial cable, the multi-port end of the multi-port first end radio frequency coaxial connector is connected with the first end of the radio frequency coaxial cable, and the multi-port end of the multi-in-one end radio frequency coaxial connector is connected with the end of the radio frequency coaxial cable;
[0021] The first end and the last end of the radio frequency coaxial cable are connected with the same type of first end radio frequency coaxial connector and last end radio frequency coaxial connector, and the radio frequency coaxial cable has the same electrical length.
[0022] The radio frequency coaxial cable is a non-equal electrical length radio frequency coaxial cable.
[0023] The radio frequency coaxial cable is a non-equal loss radio frequency coaxial cable.
[0024] The multi-port end of the one-to-many or many-to-one first end radio frequency coaxial connector has the same electrical length from each port to the single-port end.
[0025] In the implementation case 1, a 1-to-2 equal electrical length first end radio frequency coaxial connector is used to connect two radio frequency coaxial cables of the same type and the same electrical length. Since the outer diameter of the single cable is not increased, the working frequency of the cable assembly is not changed compared with the traditional radio frequency coaxial cable assembly connected with a single cable. Compared with the prior art, the cable channel of the cable assembly is increased from one to two, and the insertion loss of the cable part is reduced by 50% compared with the traditional radio frequency coaxial cable assembly connected with a single cable. Two radio frequency coaxial cables are designed with equal electrical length, and the 1-to-2 equal electrical length first end radio frequency coaxial connector can ensure that the radio frequency signal energy is transmitted to the 2-to-1 equal electrical length first end radio frequency coaxial connector at the output end through two radio frequency coaxial cables after being split by the 1-to-2 first end radio frequency coaxial connector at the input end, so as to realize the combination of radio frequency signal energy and complete the low-loss transmission of radio frequency signal energy.
[0026] Reference Figure 1 Similarly, the 1-to-2 splitting and combining can also be designed as 1-to-3, 1-to-4 splitting and combining. The arrangement of the one-to-many cables can be planar or array arrangement. Different port arrangement connectors can be selected according to needs. The multiple cables only need to ensure the same electrical length, and then cables with different loss values can be selected to achieve overall cable loss adjustment and achieve the purpose of preset specified loss value.
[0027] In the implementation case 2, the cables connected with the multi-channel connector in the implementation case 1 can be collectively connected with a multi-in-one connector 4 to realize the function of multi-channel radio frequency combining.
[0028] Reference Figure 2 In the implementation case 3, the cables can also be non-equal electrical length, for example: 1-to-2, one of the cables has an electrical length delay of 10 ns, and the other cable has an electrical length delay of 200 ns, which can realize the function of radio frequency signal splitting and delay transmission.
[0029] In the implementation case 4, the cable can also adopt non-equal electric length with 180° phase flip, and after being combined at the output end, the signals are offset to each other to realize the function of "RF filtering".
[0030] Reference Figure 3 After being branched by a 1:2 connector, different RF coaxial cables with different thicknesses and lengths are used for branching connection, and different cable losses can realize the function of "power distribution" with preset specified proportion.
[0031] The utility model discloses the beneficial aspect, this technical scheme under the premise of not reducing the working frequency of RF coaxial cable and assembly, sets up multichannel RF coaxial cable, multi -functional RF coaxial connector to meet not increasing cable size and not causing working frequency reduction, while, the loss of cable assembly is reduced greatly.
[0032] The above is only the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, equivalent replacement or change, all should be covered in the protection scope of the utility model.
Claims
1. A low-loss multi-channel multi-functional radio frequency cable assembly, characterized by: It includes several radio frequency coaxial cables, a multi-branch head radio frequency coaxial connector arranged at the head end of the radio frequency coaxial cables, and a multi-in-one end radio frequency coaxial connector arranged at the end of the radio frequency coaxial cables, the multi-branch head radio frequency coaxial connector is connected with the head end of the radio frequency coaxial cables, and the multi-in-one end radio frequency coaxial connector is connected with the end of the radio frequency coaxial cables.
2. A low loss multi-channel multi-purpose RF cable assembly according to claim 1, characterized in that: The radio frequency coaxial cables are of the same electrical length.
3. A low loss multi-channel multi-purpose RF cable assembly according to claim 1, characterized in that: The head and end of the radio frequency coaxial cables are respectively connected with the same type of head radio frequency coaxial connector and end radio frequency coaxial connector.
4. A low loss multi-channel multi-purpose RF cable assembly according to claim 1, characterized in that: The radio frequency coaxial cables are non-equal electrical length radio frequency coaxial cables.
5. A low loss multi-channel multi-purpose RF cable assembly according to claim 1, characterized in that: The radio frequency coaxial cables are phase-reversed by 180 degrees in electrical length.
6. A low loss multi-channel multi-purpose RF cable assembly according to claim 1, characterized in that: The radio frequency coaxial cables are non-equal loss radio frequency coaxial cables. The radio frequency coaxial cables are phase-reversed by 180 degrees in electrical length.