Microstrip tunable port filter

Abstract

The present application relates to the technical field of communication, especially to a microstrip adjustable port filter, comprising a cavity, a coaxial connector, a port copper sheet and a resonant rod, further comprising: a PCB board arranged in the cavity, a PCB microstrip line arranged on the PCB board, the PCB microstrip line electrically connecting the coaxial connector and the port copper sheet, so that the present application makes the connection of the port of the filter and the connector more convenient and easy to assemble.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a microstrip tunable port filter. Background Technology

[0002] Currently, for complex filter products in the industry, especially those from the Nokia GaLaxy platform and products with both front and back sides, the port connections are typically achieved using either a main rod connection or a copper sheet connection. For example... Figure 1 and Figure 2 As shown, where, Figure 1 The diagram shows a main rod connection method for a filter port in the prior art. The filter includes a main rod support medium 1, a main rod 2, a cavity 7, a coaxial connector 3, a port copper plate 4, and a resonant rod 6. The connector and the port copper plate 4 are connected through the main rod 2. Figure 2 The diagram shows another main rod connection method for the filter port in the prior art. The filter includes a copper sheet support medium 8, a transmission copper sheet 9, a cavity 7, a coaxial connector 3, a port copper sheet 4, and a resonant rod 6. The connector is connected to the port copper sheet 4 via the transmission copper sheet 9. The disadvantages of these connection methods are complex transitions, difficult assembly, high main rod processing costs, and non-adjustable ports.

[0003] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0004] To address the aforementioned shortcomings, the present invention aims to provide a microstrip adjustable port filter, which simplifies the connection between the filter port and the connector and facilitates assembly.

[0005] To achieve the above objectives, the present invention provides a microstrip adjustable port filter, including a cavity, a coaxial connector, a port copper strip, and a resonant rod, and further comprising:

[0006] A PCB board is disposed in the cavity, and PCB microstrip lines are disposed thereon, which electrically connect the coaxial connector and the port copper plate.

[0007] According to the filter, the PCB board has spatial locations for soldering one or more resistors and / or capacitors and / or inductors.

[0008] According to the filter, multiple copper sheets are arranged around the PCB microstrip line.

[0009] According to the filter, the PCB board is fixed to the cavity by screws.

[0010] According to the filter, the PCB board and the resonant rod are arranged side by side.

[0011] According to the filter, the resonant rod is fixed to the resonant platform of the filter by screws, and the port copper plate is fixed to the copper plate platform by screws or welded to the resonant rod.

[0012] The microstrip adjustable port filter provided by this invention includes a cavity, a coaxial connector, a port copper plate, a copper plate platform, and a resonant rod. The coaxial connector and the port copper plate are electrically connected by a PCB microstrip line disposed on a PCB board of the cavity. This achieves connection between the connector and the filter, and allows for adjustments to the width of the PCB microstrip line or replacement of different resistors or capacitors to meet various performance requirements of the filter for high-power designs. Furthermore, the operation is simple and convenient, with lower cost, and allows for flexible adjustment of the port delay value. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a main rod connection for a filter port in the prior art;

[0014] Figure 2 This is a schematic diagram of another main rod connection for the filter port in the prior art;

[0015] Figure 3 This is a schematic diagram of the connection of the filter port provided in one embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the connection of the filter port provided in one embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] It should be noted that references to "an embodiment," "embodiment," "example embodiment," etc., in this specification refer to the described embodiment including specific features, structures, or characteristics, but not every embodiment must include these specific features, structures, or characteristics. Furthermore, such expressions do not refer to the same embodiment. Moreover, when describing specific features, structures, or characteristics in conjunction with embodiments, whether or not explicitly described, it is indicated that incorporating such features, structures, or characteristics into other embodiments is within the knowledge of those skilled in the art.

[0019] Furthermore, certain terms are used in the specification and subsequent claims to refer to specific components or parts. Those skilled in the art will understand that manufacturers may use different names or terms to refer to the same component or part. This specification and subsequent claims do not distinguish components or parts by differences in name, but rather by differences in function. The terms "comprising" and "including" used throughout the specification and subsequent claims are open-ended and should be interpreted as "including but not limited to." Additionally, the term "connection" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connections made through other means.

[0020] See Figure 3 and Figure 4 In an embodiment of the present invention, a microstrip adjustable port filter 100 is provided, including a cavity 7, a coaxial connector 3, a port copper plate 4, and a resonant rod 6, comprising:

[0021] A PCB board 10 is disposed in the cavity 7, and a PCB microstrip line 11 is disposed thereon, which electrically connects the coaxial connector 3 and the port copper plate 4.

[0022] In this embodiment, the PCB microstrip line 11 on the PCB board 10 connects the coaxial connector 3 and the port copper plate 4. Thus, the port connection is a direct connection between the port and the PCB microstrip line 11, achieving the connection between the connector and the filter. This connection method is simpler and easier to assemble compared to traditional connection methods.

[0023] The PCB board 10 is fixed to the cavity 7 by screws 14. The PCB board 10 and the resonant rod 6 are arranged side by side. The resonant rod 6 is fixed to the resonant platform 61 of the filter 100 by screws, and the port copper plate 4 is fixed to the copper plate platform 62 by screws or soldered to the resonant rod 6.

[0024] In one embodiment of the present invention, the PCB board 10 has spatial locations 13 for soldering one or more resistors and / or capacitors and / or inductors. Alternatively, a plurality of copper sheets 12 are disposed around the PCB microstrip line 11.

[0025] Copper plates 12 are distributed on both the left and right sides of the PCB microstrip line 11. These plates can be soldered to the PCB microstrip line 11, or different components can be mounted on the copper plates 12 to meet high-power design requirements. These components include resistors and capacitors, which allow adjustment of the port delay value and port shape to meet filter design requirements. Furthermore, the performance requirements of the filter can be met by adjusting the width of the PCB microstrip line 11 or by changing the strength of the port delay value and the port shape. Replacing different resistors or capacitors, etc., with components suitable for high-power designs allows for control over filter consistency.

[0026] In the embodiments of the present invention, a new connection form for the connection port of the PCB microstrip line 11 is adopted. It is not only simple in structure and easy to assemble, but also has a lower cost than the main rod connection in the prior art. At the same time, the port strength and port shape can be improved by changing the width of the microstrip line and adding or replacing different resistors or capacitors on the microstrip line to meet the high power design. Such port shape setting will be simpler and more reliable, and the microstrip consistency will be better, the port relative consistency will also be better, and the manufacturing efficiency will be higher.

[0027] The microstrip adjustable port filter provided by this invention includes a cavity, a coaxial connector, a port copper plate, and a resonant rod. The coaxial connector and the port copper plate are electrically connected by a PCB microstrip line disposed on a PCB board of the cavity. This realizes the connection between the connector and the filter, and allows for the adjustment of the PCB microstrip line width or the replacement of different resistors or capacitors to meet different performance requirements of the filter for high-power designs. Furthermore, it is simple and convenient to operate, has lower costs, and allows for flexible adjustment of the port delay value.

[0028] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A microstrip tunable ported filter comprising a cavity, a coaxial connector, a porting copper slug and a resonant rod, characterized in that, Also comprising: A PCB board is set in the cavity, and a PCB microstrip line is set on the PCB board, the PCB microstrip line electrically connects the coaxial connector and the port copper sheet; A plurality of copper sheets are set around the PCB microstrip line, the copper sheets are connected with the PCB microstrip line by soldering, and the PCB board has a space position for welding one or more resistors, capacitors and / or inductors, and by adding or replacing different components on the PCB microstrip line, the port time delay value and the port shape can be adjusted.

2. The filter of claim 1, wherein, The PCB board is fixed in the cavity by screws.

3. The filter of claim 1, wherein, The PCB board is arranged side by side with the resonant rod.

4. The filter of claim 1, wherein, The resonant rod is fixed on the resonant platform of the filter by screws, and the port copper sheet is fixed on the copper sheet platform by screws or is welded on the resonant rod.

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