阅读说明：本技术 双通带威尔金森功分器 (Double-passband Wilkinson power divider ) 是由 张国庆 周加茹 于 2019-09-05 设计创作，主要内容包括：本申请公开了一种双通带威尔金森功分器,包括基板、沿基板轴向中心线对称的两个微波传输支路以及沿基板轴向中心线对称的两个开路枝节,所述基板上设有与两个微波传输支线共同连接的输入端口,所述基板上还设有分别与两个微波传输支线连接的输出端口,两个所述开路枝节分别与两个微波传输支线连接,两个所述微波传输支线之间设有第一电阻,两个所述开路枝节通过第二电阻连接。该功分器通过加载开路枝节,并在加载的开路枝节之间增加匹配电阻的形式实现了功分器的双通带特性,器件的回波损耗、隔离、等指标性能良好。(The application discloses ware is divided to dual passband Wilkinson merit, including the base plate, along two microwave transmission branch roads of base plate axial direction line symmetry and two branch knots of opening a way along base plate axial direction line symmetry, be equipped with the input port of being connected jointly with two microwave transmission branch roads on the base plate, still be equipped with the output port of being connected with two microwave transmission branch roads respectively on the base plate, two branch knots of opening a way are connected with two microwave transmission branch roads respectively, two be equipped with first resistance, two between the microwave transmission branch road the branch knot of opening a way passes through the second ohmic connection. The power divider realizes the dual-passband characteristic of the power divider by loading the open-circuit branches and adding the matching resistors among the loaded open-circuit branches, and the return loss, isolation and other index performances of the device are good.)

1. A dual-passband Wilkinson power divider is characterized in that: the microwave transmission device comprises a substrate, two microwave transmission branches which are symmetrical along the axial center line of the substrate and two open-circuit branches which are symmetrical along the axial center line of the substrate, wherein an input port which is connected with the two microwave transmission branches together is arranged on the substrate, an output port which is connected with the two microwave transmission branches respectively is also arranged on the substrate, the two open-circuit branches are connected with the two microwave transmission branches respectively, a first resistor is arranged between the two microwave transmission branches, and the two open-circuit branches are connected through a second resistor.

2. A dual passband wilkinson power divider as claimed in claim 1, wherein: the first resistor is arranged below the open-circuit branch.

3. A dual passband wilkinson power divider as claimed in claim 1, wherein: the open-circuit branch section comprises two U-shaped microstrip lines which are connected end to end, and the two unconnected ends of the open-circuit branch section are respectively connected with the microwave transmission branch line and the second resistor.

4. A dual passband wilkinson power divider as claimed in claim 1, wherein: the two U-shaped microstrip lines of the open-circuit branch section are vertically and parallelly arranged.

Technical Field

The application relates to the field of power dividers, in particular to a dual-passband Wilkinson power divider.

Background

With the continuous development of modern communication technology, people in a communication system also put forward more and more requirements on the function of a single device working at two or more different frequency bands, in a modern communication system, in a radio frequency front end, a traditional signal processing mode is that a signal received from an antenna is divided into multiple paths of signals by a broadband power divider, and then the multiple paths of signals are subjected to frequency selection filtering processing by a cascaded filter to meet the communication requirements of different frequency bands in practical communication application, and the processing mode greatly increases the complexity and cost of the system, so that the improvement of the traditional structure and the technical innovation are particularly important.

Disclosure of Invention

The invention aims to provide a double-passband Wilkinson power divider to overcome the defects in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

the embodiment of the application discloses bi-pass band Wilkinson power divider, its characterized in that: the microwave transmission device comprises a substrate, two microwave transmission branches which are symmetrical along the axial center line of the substrate and two open-circuit branches which are symmetrical along the axial center line of the substrate, wherein an input port which is connected with the two microwave transmission branches together is arranged on the substrate, an output port which is connected with the two microwave transmission branches respectively is also arranged on the substrate, the two open-circuit branches are connected with the two microwave transmission branches respectively, a first resistor is arranged between the two microwave transmission branches, and the two open-circuit branches are connected through a second resistor.

Preferably, in the double-passband wilkinson power divider described above, the first resistor is disposed below the open stub.

Preferably, in the dual-passband wilkinson power divider, the open-circuit branch comprises two U-shaped microstrip lines, the two U-shaped microstrip lines are connected end to end, and two unconnected ends of the open-circuit branch are respectively connected to the microwave transmission branch and the second resistor.

Preferably, in the dual-passband wilkinson power divider described above, the two U-shaped microstrip lines of the open-circuit stub are vertically and parallel arranged.

Compared with the prior art, the invention has the advantages that:

1. the dual-passband characteristic of the power divider is realized by loading the open-circuit branches and adding the matching resistors among the loaded open-circuit branches, and the return loss, isolation and other index performances of the device are good.

2. Through the loading of the open-circuit branch and the resistor, one device works in two frequency bands simultaneously, the complexity of an actual communication system is reduced, and the cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a dual-passband wilkinson power divider in an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1, the dual-passband wilkinson power divider in this embodiment includes a substrate 1, two microwave transmission branches 2 symmetric to each other along an axial center line of the substrate 1, and two open-circuit branches 3 symmetric to each other along the axial center line of the substrate 1, an input port 4 commonly connected to the two microwave transmission branches 2 is disposed on the substrate 1, an output port 5 respectively connected to the two microwave transmission branches 2 is further disposed on the substrate 1, the two open-circuit branches 3 are respectively connected to the two microwave transmission branches 2, a first resistor 201 is disposed between the two microwave transmission branches 2, and the two open-circuit branches 3 are connected to each other through a second resistor 301.

Further, the first resistor 201 is disposed below the open stub 3.

Further, the open-circuit branch 3 includes two U-shaped microstrip lines 302, the two U-shaped microstrip lines 302 are connected end to end, and two ends of the open-circuit branch 3, which are not connected, are respectively connected to the microwave transmission branch 2 and the second resistor 301.

Further, the two U-shaped microstrip lines 302 of the open-circuit stub 3 are vertically and parallelly disposed.

In the technical scheme, the dual-passband characteristic of the power divider is realized by loading the open-circuit branches and adding the matching resistors among the loaded open-circuit branches, and the return loss, isolation and other index performances of the device are good; through the loading of the open-circuit branch and the resistor, one device works in two frequency bands simultaneously, the complexity of an actual communication system is reduced, and the cost is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a detailed description of the present application, and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application, and these should also be considered as the protection scope of the present application.