Broadband high-power switch

Abstract

The utility model relates to the technical field of microwave integrated circuits, and discloses a broadband high-power switch, which comprises a signal input channel, a first signal output channel and a second signal output channel which are arranged on a radio frequency printed board, and the signal input channel is respectively connected with the first signal output channel and the second signal output channel through a Y-shaped connector. The first signal output channel and the second signal output channel are symmetrically arranged, each of the first signal output channel and the second signal output channel comprises a plurality of microstrip lines and is provided with two diodes and two blocking capacitors, the first signal output channel inputs voltage through a VG1, and the second signal output channel inputs voltage through a VG2. According to the utility model, the frequency range is wider, low-frequency and ultrahigh-frequency bands which cannot be processed by a traditional switch can be covered, and rapid switching and high isolation are both considered through a VG1 / VG2 independently controlled double-PIN tube cascade structure.

Description

Technical Field

[0001] This utility model relates to the field of microwave integrated circuit technology, and in particular to a broadband high-power switch. Background Technology

[0002] Currently, the frequency range of high-power switches on the market is relatively narrow. Most existing high-power switches operate in the 8-18GHz frequency band, with a peak power of 200W and a duty cycle of 10%, making it difficult to balance bandwidth and power performance. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a broadband high-power switch.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A broadband high-power switch includes a signal input channel, a first signal output channel, and a second signal output channel disposed on an RF printed circuit board. The signal input channel is connected to the first signal output channel and the second signal output channel respectively via a Y-connector. The first signal output channel and the second signal output channel are symmetrically arranged and each includes multiple microstrip lines, two diodes, and two DC blocking capacitors. The first signal output channel is input to a voltage via VG1, and the second signal output channel is input to a voltage via VG2.

[0006] Furthermore, the signal in the signal input channel passes sequentially through input port J0, microstrip line MLNI1, microstrip line MLNI2 and microstrip line MLNI3, with microstrip line MLNI1 fixed at an impedance of 50Ω.

[0007] Furthermore, the signal in the first signal output channel sequentially passes through microstrip line MLNI4, DC blocking capacitor, microstrip line MLNI5, microstrip line MLNI6, microstrip line MLNI7, DC blocking capacitor, microstrip line MLNI8, microstrip line MLNI9, microstrip line MLNI10 and output port J1; VG1 is located between microstrip lines MLNI6 and MLNI7, and the positive terminal of the diode is connected between microstrip lines MLNI5 and MLNI6; the positive terminal of the diode is connected between microstrip lines MLNI6 and MLNI7, and microstrip line MLNI10 is fixedly set to 50Ω impedance.

[0008] Furthermore, the signal in the second signal output channel sequentially passes through microstrip line MLNI4, DC blocking capacitor, microstrip line MLNI5, microstrip line MLNI6, microstrip line MLNI7, DC blocking capacitor, microstrip line MLNI8, microstrip line MLNI9, microstrip line MLNI10 and output port J2; VG2 is located between microstrip lines MLNI6 and MLNI7, and the positive terminal of the diode is connected between microstrip lines MLNI5 and MLNI6; the positive terminal of the diode is connected between microstrip lines MLNI6 and MLNI7, and microstrip line MLNI10 is fixedly set to 50Ω impedance.

[0009] Furthermore, the negative terminal of the diode is grounded.

[0010] Furthermore, the thickness of the radio frequency printed circuit board is 0.254 mm.

[0011] Furthermore, VG1 is negatively charged and VG2 is positively charged to enable signal conduction from port J0 to port J1; VG1 is positively charged and VG2 is negatively charged to enable signal conduction from port J0 to port J2.

[0012] The present invention has the following advantages: the frequency range of the present invention is wider, which can cover the low frequency and ultra-high frequency bands that traditional switches cannot handle. Through the dual-PIN tube cascade structure with independent control of VG1 / VG2, it can balance fast switching and high isolation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a 3D simulation model diagram.

[0015] Figure 3 This is a simulation graph of the S-curve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1 and Figure 2As shown, one embodiment of this utility model provides a broadband high-power switch, including a signal input channel, a first signal output channel, and a second signal output channel disposed on an RF printed circuit board. The signal input channel is connected to the first and second signal output channels respectively via Y-connectors. The first and second signal output channels are symmetrically arranged, each including multiple microstrip lines, and equipped with two diodes and two DC blocking capacitors. The first signal output channel receives voltage through VG1, and the second signal output channel receives voltage through VG2. The signal in the signal input channel sequentially passes through input port J0, microstrip line MLNI1, microstrip line MLNI2, and microstrip line MLNI3. In the first signal output channel, the signal sequentially passes through microstrip line MLNI4, DC blocking capacitor, microstrip line MLNI5, microstrip line MLNI6, microstrip line MLNI7, DC blocking capacitor, microstrip line MLNI8, microstrip line MLNI9, microstrip line MLNI10 and output port J1; VG1 is located between microstrip line MLNI6 and microstrip line MLNI7, and the positive terminal of the diode is connected between microstrip line MLNI5 and microstrip line MLNI6; the positive terminal of the diode is also connected between microstrip line MLNI6 and microstrip line MLNI7. In the second signal output channel, the signal sequentially passes through microstrip line MLNI4, a DC blocking capacitor, microstrip line MLNI5, microstrip line MLNI6, microstrip line MLNI7, a DC blocking capacitor, microstrip line MLNI8, microstrip line MLNI9, microstrip line MLNI10, and output port J2. VG2 is positioned between microstrip lines MLNI6 and MLNI7. The anode of a diode is connected between microstrip lines MLNI5 and MLNI6. The cathode of the diode is grounded between microstrip lines MLNI6 and MLNI7. The RF printed circuit board thickness is 0.254 mm. The signal enters from input terminal J0. By applying a negative voltage to VG1 and a positive voltage to VG2, signal conduction from port J0 to port J1 is achieved. Conversely, applying a positive voltage to VG1 and a negative voltage to VG2 achieves signal conduction from port J0 to port J2. This allows for switching between the on / off states of different ports.

[0018] In this embodiment, microstrip lines MLNI1 and MLNI10 are fixed at 50Ω impedance, while MLNI2, MLNI3, MLNI4, MLNI5, MLNI6, MLNI7, MLNI8, and MLNI9 serve as impedance transformation microstrip lines, configured according to bandwidth and power requirements. To increase the switching bandwidth, only impedance transformation of the RF striplines is needed; an appropriate number of transformation stages can increase the switching bandwidth range (i.e., by adjusting the width and length of microstrip lines MLNI2, MLNI3, MLNI4, MLNI5, MLNI6, MLNI7, MLNI8, and MLNI9).

[0019] In this embodiment, the specific length W and width L of the microstrip line are set as follows:

[0020] MLNI1: W1 = 0.76, L1 = 5;

[0021] MLNI2: W2=1.3, L2=1.75;

[0022] MLNI3: W3=0.6, L3=1.05;

[0023] MLNI4: W4=1.3, L4=1.2;

[0024] MLNI5: W5=1.2, L5=1.06;

[0025] MLNI6: W6=0.56, L6=0.95;

[0026] MLNI7: W7 = 0.9, L7 = 7;

[0027] MLNI8: W8=0.85, L8=2.73;

[0028] MLNI9: W9=0.64, L9=1.78;

[0029] MLNI10: W10=0.76, L10=5;

[0030] The simulated S-curve obtained through AWR simulation is as follows: Figure 3 As shown.

[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended 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 described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A broadband high power switch, characterized by, The signal input channel, the first signal output channel and the second signal output channel are arranged on the radio frequency printed board, the signal input channel is connected with the first signal output channel and the second signal output channel through a Y-shaped connector, the first signal output channel and the second signal output channel are symmetrically arranged, each of the first signal output channel and the second signal output channel comprises a plurality of microstrip lines, and two diodes and two direct-current blocking capacitors are arranged in each of the first signal output channel and the second signal output channel, the first signal output channel is connected with a voltage input terminal VG1, and the second signal output channel is connected with a voltage input terminal VG2.

2. A broadband high power switch as claimed in claim 1, characterized in that The signal in the signal input channel sequentially passes through an input port J0, a microstrip line MLNI1, a microstrip line MLNI2 and a microstrip line MLNI3, and the microstrip line MLNI1 is fixedly arranged as 50 impedance.

3. A broadband high power switch as claimed in claim 1, wherein, The signal in the first signal output channel sequentially passes through a microstrip line MLNI4, a direct-current blocking capacitor, a microstrip line MLNI5, a microstrip line MLNI6, a microstrip line MLNI7, a direct-current blocking capacitor, a microstrip line MLNI8, a microstrip line MLNI9, a microstrip line MLNI10 and an output port J1, the VG1 is arranged between the microstrip line MLNI6 and the microstrip line MLNI7, the positive electrode of a diode is connected between the microstrip line MLNI5 and the microstrip line MLNI6, the positive electrode of the diode is connected between the microstrip line MLNI6 and the microstrip line MLNI7, and the microstrip line MLNI10 is fixedly arranged as 50 impedance.

4. A broadband high power switch as claimed in claim 1, wherein, The signal in the second signal output channel sequentially passes through a microstrip line MLNI4, a direct-current blocking capacitor, a microstrip line MLNI5, a microstrip line MLNI6, a microstrip line MLNI7, a direct-current blocking capacitor, a microstrip line MLNI8, a microstrip line MLNI9, a microstrip line MLNI10 and an output port J2, the VG2 is arranged between the microstrip line MLNI6 and the microstrip line MLNI7, the positive electrode of a diode is connected between the microstrip line MLNI5 and the microstrip line MLNI6, the positive electrode of the diode is connected between the microstrip line MLNI6 and the microstrip line MLNI7, and the microstrip line MLNI10 is fixedly arranged as 50 impedance.

5. A broadband high power switch as claimed in claim 1, wherein, The radio frequency printed board has a thickness of 0.254 mm.

6. A broadband high power switch as claimed in claim 1, wherein, The VG1 is applied with negative electricity, the VG2 is applied with positive electricity, the signal is conducted from the J0 port to the J1 port, the VG1 is applied with positive electricity, the VG2 is applied with negative electricity, and the signal is conducted from the J0 port to the J2 port.

7. A broadband high power switch as claimed in claim 1, wherein, The negative electrode of the diode is grounded.

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