High-power, high-isolation three-channel broadband power divider

Abstract

This application discloses a high-power, high-isolation three-channel broadband power divider, comprising a metal housing, an input terminal, a first output terminal, a second output terminal, a third output terminal, a first composite bridge, a second composite bridge, a third composite 5dB coupler, a first RF resistor, and a second RF resistor. The input terminal is connected to the first composite bridge, the first RF resistor is connected to the first composite bridge, the first composite bridge is connected to both the second composite bridge and the third composite 5dB coupler, the first output terminal is connected to the second composite bridge, the second output terminal is connected to the second composite bridge, the second composite bridge is connected to the third composite 5dB coupler, the third output terminal is connected to the third composite 5dB coupler, and the second RF resistor is connected to the third composite 5dB coupler. This high-power, high-isolation three-channel broadband power divider achieves the high-power requirements of the entire device through structural design.

Description

Technical Field

[0001] This application relates to the field of power divider technology, and in particular to a high-power, high-isolation three-channel broadband power divider. Background Technology

[0002] With the continuous development of modern communication technology, power dividers are a very important microwave passive device in communication systems, and they are widely used in antenna array feeding systems and indoor distribution systems.

[0003] With the continuous development of wireless communication technology, the data traffic of various communication systems is constantly increasing, intensifying the demand for high-power, broadband transmission equipment. Radio frequency microwave communication systems are also placing increasingly higher demands on the performance indicators of power dividers. Therefore, improving traditional structures and carrying out technological innovation are particularly important. Utility Model Content

[0004] The purpose of this invention is to provide a high-power, high-isolation three-channel broadband power divider to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This application discloses a high-power, high-isolation three-channel broadband power divider, comprising a metal housing. The metal housing is characterized by having an input terminal, a first output terminal, a second output terminal, and a third output terminal. The metal housing contains a first composite bridge, a second composite bridge, a third composite 5dB coupler, a first RF resistor, and a second RF resistor. The input terminal is connected to the first composite bridge via a first transmission line. The first RF resistor is connected to the first composite bridge via a second transmission line. The first composite bridge is connected to the second composite bridge and the third composite 5dB coupler via third and fourth transmission lines, respectively. The first output terminal is connected to the second composite bridge via a fifth transmission line. The second output terminal is connected to the second composite bridge via a sixth transmission line. The second composite bridge is connected to the third composite 5dB coupler via a seventh transmission line. The third output terminal is connected to the third composite 5dB coupler via an eighth transmission line. The second RF resistor is connected to the third composite 5dB coupler via a ninth transmission line.

[0007] Preferably, in the above-mentioned high-power, high-isolation three-way broadband power divider, the first transmission line, the second transmission line, the third transmission line, the fourth transmission line, the fifth transmission line, the sixth transmission line, the seventh transmission line, the eighth transmission line, and the ninth transmission line are all air strip lines.

[0008] Preferably, in the above-mentioned high-power, high-isolation three-channel broadband power divider, the first RF resistor and the second RF resistor are both 50-ohm high-power RF resistors.

[0009] Preferably, in the above-mentioned high-power high-isolation three-way broadband power divider, the first RF resistor and the second RF resistor are fixed on the metal housing.

[0010] Preferably, in the above-mentioned high-power high-isolation three-way broadband power divider, the fourth transmission line and the eighth transmission line are the same transmission line, and the seventh transmission line and the ninth transmission line are the same transmission line.

[0011] Compared with the prior art, the advantages of the present invention are as follows:

[0012] By using a composite bridge as the main structure of the power divider, connecting high-power 50-ohm RF resistors to the corresponding isolation connectors of the bridge, and mounting the resistors on the metal housing, good heat dissipation can be achieved, meeting the high-power usage requirements of the entire device. At the same time, due to the good isolation between the corresponding output ports of the composite bridge, the isolation degree requirement between the output ports is further satisfied. In addition, because the loss of the air stripline itself is very small, the insertion loss performance of the power divider implemented thereby is better than that of the traditional microstrip power divider. The overall circuit structure is simple, and the main structure can be fabricated through machining and wire cutting processes. The product has good consistency and high tolerance, meeting the requirements for mass production. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 The figure shows a schematic structural diagram of a high-power high-isolation three-way broadband power divider in a specific embodiment of the present invention. Detailed Embodiments

[0015] The following will combine the drawings in the embodiments of the present invention to describe the technical solutions in the embodiments of the present invention in detail. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0016] Refer Figure 1As shown, the high-power, high-isolation three-channel broadband power divider in this embodiment includes a metal housing 1. The metal housing 1 has an input terminal 2, a first output terminal 3, a second output terminal 4, and a third output terminal 5. Inside the metal housing 1 are a first composite bridge 6, a second composite bridge 7, a third composite 5dB coupler 8, a first RF resistor 9, and a second RF resistor 10. The input terminal 2 is connected to the first composite bridge 6 via a first transmission line 11. The first RF resistor 9 is connected to the first composite bridge 6 via a second transmission line 12. The first composite bridge 6 is connected to the second composite bridge 7 and the third composite 5dB coupler 8 via third transmission lines 13 and 14, respectively. The first output terminal 3 is connected to the second composite bridge 7 via a fifth transmission line 15. The second output terminal 4 is connected to the second composite bridge 7 via a sixth transmission line 16. The second composite bridge 7 is connected to the third composite 5dB coupler 8 via a seventh transmission line 17. The third output terminal 5 is connected to the third composite 5dB coupler 8 via an eighth transmission line 18. Coupler 8 is connected, and the second RF resistor 10 is connected to the third composite 5dB coupler 8 via the ninth transmission line 19.

[0017] Furthermore, the first transmission line 11, the second transmission line 12, the third transmission line 13, the fourth transmission line 14, the fifth transmission line 15, the sixth transmission line 16, the seventh transmission line 17, the eighth transmission line 18, and the ninth transmission line 19 are all air strip lines.

[0018] Furthermore, both the first RF resistor 9 and the second RF resistor 10 are 50-ohm high-power RF resistors.

[0019] Furthermore, the first RF resistor 9 and the second RF resistor 10 are fixed to the metal housing 1.

[0020] Furthermore, the fourth and eighth transmission lines are the same transmission line, and the seventh and ninth transmission lines are the same transmission line.

[0021] In this technical solution, a composite bridge is used as the main structure of the power divider. A high-power 50-ohm RF resistor is connected to the corresponding isolation connector of the bridge and mounted on a metal housing to ensure good heat dissipation, thus meeting the high-power requirements of the entire device. Simultaneously, the isolation between the corresponding output ports of the composite bridge provides good performance, further satisfying the isolation requirements between the output ports. Furthermore, since the loss of the air stripline itself is very small, the insertion loss performance of the power divider implemented in this way is better than that of traditional microstrip power dividers. The overall circuit structure is simple, and the main structure can be manufactured through machining and wire cutting processes, resulting in good product consistency and high tolerance, which can meet the needs of mass production.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0023] The above are merely specific embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A high power high isolation three-way broadband power divider comprising a metal housing, characterized in that: The metal housing has an input terminal, a first output terminal, a second output terminal, and a third output terminal. Inside the metal housing are a first composite bridge, a second composite bridge, a third composite 5dB coupler, a first RF resistor, and a second RF resistor. The input terminal is connected to the first composite bridge via a first transmission line. The first RF resistor is connected to the first composite bridge via a second transmission line. The first composite bridge is connected to the second composite bridge and the third composite 5dB coupler via third and fourth transmission lines, respectively. The first output terminal is connected to the second composite bridge via a fifth transmission line. The second output terminal is connected to the second composite bridge via a sixth transmission line. The second composite bridge is connected to the third composite 5dB coupler via a seventh transmission line. The third output terminal is connected to the third composite 5dB coupler via an eighth transmission line. The second RF resistor is connected to the third composite 5dB coupler via a ninth transmission line.

2. The high-isolation three-way broadband power divider of claim 1, wherein: The first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth transmission lines are all air strip lines.

3. A high-power, high-isolation three-channel broadband power divider according to claim 1, characterized in that: Both the first and second RF resistors are 50-ohm high-power RF resistors.

4. A high-power, high-isolation three-channel broadband power divider according to claim 1, characterized in that: The first RF resistor and the second RF resistor are fixed on the metal housing.

5. A high-power, high-isolation three-channel broadband power divider according to claim 1, characterized in that: The fourth transmission line and the eighth transmission line are the same transmission line, and the seventh transmission line and the ninth transmission line are the same transmission line.

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