Ku-band 40W high-reflection power strip line and coaxial isolator

Abstract

The utility model relates to a radio frequency isolator, and discloses a Ku wave band 40W large reflection power strip line and a coaxial isolator, comprising a cavity; a circulator assembly, load equipment and an attenuator are arranged in the cavity; the circulator assembly is a three-port microwave ferrite device, and the three ports are respectively an input end, an output end and a load end; the load end is connected with load equipment, and the attenuator is connected with the load equipment. According to the utility model, the third end of the device is realized by adopting a combination mode of the attenuator and the radio frequency load, so that the reflection power bearing capacity of the conventional strip line / coaxial isolator is improved; the isolation degree of the high-reflection power isolator is improved; and the cost of the high-reflection power isolator is reduced.

Description

Technical Field

[0001] The utility model relates to a radio frequency isolator, in particular to a Ku-band 40W large reflection power band line and a coaxial isolator. Background Art

[0002] The Ku band is part of the electromagnetic spectrum, with a frequency range of roughly 12 GHz to 18 GHz. This band is widely used in satellite communications, radar systems, broadcasting and television, and other fields. In wireless communication systems, large reflected power usually refers to the maximum power that the device can output, which is critical to ensuring signal coverage and communication quality. 40W of power is a relatively high output level in wireless communication equipment, which can meet long-distance or high-demand communication scenarios. An isolator is a device specifically used to isolate RF signals, and its function is similar to that of an electrical isolator. It is mainly used to isolate upstream signal chain components (usually more sensitive components) from reflections of downstream components, prevent signal feedback and noise, and thus protect any component or part of the signal chain from reverse reflections. RF isolators are widely used in the field of wireless communications, such as transceivers, antennas and other equipment to improve system stability and reliability. An RF isolator is a specific case of an RF circulator in which one of the three ports (usually the reverse port of the reference signal chain) is terminated. Current technology generally uses waveguide products or diamond loads to achieve high power such as 40W, but the waveguide is huge in size and the diamond load is expensive, which leads to excessively high costs. Utility Model Content

[0003] In order to make up for the above deficiencies, the utility model provides a Ku-band 40W large reflection power band line and a coaxial isolator.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] Ku-band 40W large reflection power band line and coaxial isolator, Ku-band 40W large reflection power band line and coaxial isolator, characterized in that it includes a cavity; a circulator component, a load device and an attenuator are arranged in the cavity; the circulator component is a three-port microwave ferrite device, and the three ports are respectively an input end, an output end and a load end; the load end is connected to the load device, and the attenuator is connected to the load device.

[0006] Furthermore, the attenuator is a 3dB attenuator, and the attenuation handling power is 20W.

[0007] Furthermore, the load device is a ceramic load, and the load power is 20W.

[0008] Furthermore, the cavity includes a circulator component placement unit and a power absorption placement unit; the circulator component placement unit has a built-in circulator component; the power absorption placement unit has a built-in attenuator and a load device.

[0009] Furthermore, the cavity is provided with a fixing hole.

[0010] Furthermore, the fixing hole is arranged on the circulator assembly placement unit.

[0011] Furthermore, the circulator assembly includes a cavity, a first grounding plate, a first gyromagnet, a central conductor, a second gyromagnet, a second grounding plate, a permanent magnet, a temperature compensation plate and an anti-rotation plate.

[0012] The utility model has the following beneficial effects: the utility model adopts a combination of an attenuator and a radio frequency load at the third end of the device, thereby improving the reflected power bearing capacity of the current stripline / coaxial isolator; improving the isolation of the high-reflection power isolator; and reducing the cost of the high-reflection power isolator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Description of the drawings: 1. Circulator assembly; 2. Load device; 3. Attenuator. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Reference Figure 1 The utility model provides an embodiment: a Ku-band 40W high reflection power stripline and coaxial isolator, comprising a cavity; a circulator component 1, a load device 2 and an attenuator 3 are arranged in the cavity; the circulator component 1 is a three-port microwave ferrite device, and the three ports are respectively an input end P1, an output end P2 and a load end; its circulator is a stripline circulator or a coaxial circulator; the load end is connected to the load device 2, and the attenuator 3 is connected to the load device 2.

[0017] The attenuator 3 is a 3dB attenuator, and the attenuation handling power is 20W.

[0018] The load device 2 is a ceramic load, and the load power is 20W.

[0019] Among them, the cavity includes a circulator component placement unit and a power absorption placement unit; the circulator component placement unit internally houses a circulator component 1; the power absorption placement unit internally houses an attenuator 3 and a load device 2.

[0020] Among them, the cavity is provided with fixing holes. Specifically, the fixing holes are arranged in the circulator component placement unit.

[0021] Among them, the circulator component 1 includes a cavity, a first grounding plate, a first gyromagnetic body, a center conductor, a second gyromagnetic body, a second grounding plate, a permanent magnet, a temperature compensation sheet, and an anti-rotation sheet.

[0022] When a power signal is input from the input port P1 and output from the output port P2, due to factors such as circuit impedance mismatch, the power signal will be reflected back from the output end to the input end. When the power signal is reflected, half of the power will be attenuated by the 3dB RF power attenuator 2, and the remaining half of the power signal will be absorbed by the 20W high-power RF power load device 3. In this way, the reflected power signal is completely absorbed, protecting the signal power to be stably input from the input port and output from the output end, and the entire circuit is not interfered by the reflection.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Finally, it should be noted that the above are only preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Ku-band 40W high reflection power band line and coaxial isolator, characterized by: It comprises a cavity; a circulator component, a load device and an attenuator are arranged in the cavity; the circulator component is a three-port microwave ferrite device, and the three ports are respectively an input end, an output end and a load end; the load end is connected to the load device, and the attenuator is connected to the load device.

2. The Ku-band 40W high reflection power band line and coaxial isolator according to claim 1, characterized in that: The attenuator is a 3dB attenuator, and the attenuation handling power is 20W.

3. The Ku-band 40W high reflection power band line and coaxial isolator according to claim 1, characterized in that: The load device is a ceramic load, and the load power is 20W.

4. The Ku-band 40W high reflection power band line and coaxial isolator according to claim 1, characterized in that: The cavity comprises a circulator component placement unit and a power absorption placement unit; the circulator component placement unit has a built-in circulator component; the power absorption placement unit has a built-in attenuator and a load device.

5. The Ku-band 40W high reflection power band line and coaxial isolator according to claim 1, characterized in that: The cavity is provided with a fixing hole.

6. The Ku-band 40W high reflection power band line and coaxial isolator according to claim 5, characterized in that: The fixing hole is arranged on the circulator component placement unit.

7. The Ku-band 40W high reflection power band line and coaxial isolator according to claim 1, characterized in that: The circulator assembly includes a cavity, a first grounding plate, a first gyromagnet, a central conductor, a second gyromagnet, a second grounding plate, a permanent magnet, a temperature compensation plate and an anti-rotation plate.

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