Ultra-wideband coaxial coupler

Abstract

The utility model discloses an ultra-wideband coaxial coupler, and belongs to the technical field of wideband frequency conversion testing. The ultra-wideband coaxial coupler mainly comprises a signal input module, a main signal output module, a coupling module and a signal monitoring output module. Wherein the output end of the signal input module is provided with a main signal output module, and the main signal output module is used for receiving broadband signals transmitted by the signal input module; the output end of the signal input module is also provided with a coupling module, and the coupling module is used for coupling part of broadband signals transmitted by the signal input module; the output end of the coupling module is connected with the receiving end of the signal monitoring output module, and the signal monitoring output module is used for monitoring broadband signals transmitted by the coupling module; and a DC-20G resistor is arranged in the coupling module. Compared with the prior art, the frequency range for monitoring broadband signals is widened, the accuracy for monitoring the broadband signals is improved to a certain extent, and therefore the broadband signal monitoring device has high practicability.

Description

Technical Field

[0001] This utility model relates to the field of broadband frequency conversion testing technology, and in particular to an ultra-wideband coaxial coupler. Background Technology

[0002] In today's testing scenarios for broadband frequency converter modules, accurate monitoring of the transmitted broadband signals has become a crucial core task. With continuous technological advancements and increasingly diverse application scenarios, the demands for the accuracy and reliability of broadband signal monitoring are constantly rising. Although new technologies such as coaxial couplers offer new hope for expanding the monitoring frequency range, current coaxial couplers still have a relatively limited monitoring frequency range when coupling broadband signals. This makes it difficult for some devices to fully function in complex and ever-changing application scenarios, significantly restricting their applicability. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an ultra-wideband coaxial coupler that mainly comprises a signal input module, a main signal output module, a coupling module, and a signal monitoring output module. The coupling module can couple broadband signals with a frequency range of 0 GHz to 20 GHz, and also broadband signals with a frequency range of 0.1 GHz to 18 GHz. Compared to existing technologies, this utility model broadens the frequency range for monitoring broadband signals and improves the accuracy of broadband signal monitoring to a certain extent, thus possessing high practicality.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] Ultra-wideband coaxial couplers include:

[0006] The signal input module is used to receive broadband signals transmitted by a broadband frequency converter module;

[0007] The main signal output module is used to receive the broadband signal transmitted by the signal input module, and the receiving end of the main signal output module is connected to the output end of the signal input module.

[0008] A coupling module is used to couple a portion of the broadband signal transmitted by the signal input module, and the receiving end of the coupling module is connected to the output end of the signal input module;

[0009] A signal monitoring output module is used to monitor the broadband signal transmitted by the coupling module, and the receiving end of the signal monitoring output module is connected to the output end of the coupling module.

[0010] in,

[0011] The coupling module is equipped with a DC-20G resistor.

[0012] Furthermore, the coupling port of the coupling module is SMA-K.

[0013] Furthermore, the coupling module includes:

[0014] First resistor;

[0015] The receiving end of the first resistor is connected to the output end of the signal input module, the output end of the first resistor is directly or indirectly connected to the receiving end of the signal monitoring output module, and the output end of the first resistor is directly or indirectly connected to ground.

[0016] Furthermore, the coupling module also includes:

[0017] Second resistor;

[0018] The receiving end of the second resistor is connected to the output end of the first resistor, the output end of the second resistor is connected to the receiving end of the signal monitoring output module, and the output end of the second resistor is directly or indirectly connected to ground.

[0019] Furthermore,

[0020] The first resistor is a DC-20G chip resistor; and / or

[0021] The second resistor is a DC-20G chip resistor.

[0022] Furthermore, the coupling module also includes:

[0023] Branch resistance;

[0024] The receiving end of the branch resistor is connected to the output end of the second resistor, and the output end of the branch resistor is grounded.

[0025] Furthermore,

[0026] The impedance of the first resistor is 50Ω; and / or

[0027] The impedance of the second resistor is 50Ω; and / or

[0028] The impedance of the branch resistor is 50Ω.

[0029] Furthermore, the maximum input power of the coupling module is 2W.

[0030] Furthermore,

[0031] The return loss of the coupling module is 15dB; and / or

[0032] The insertion loss of the coupling module is 1 dB; and / or

[0033] The coupling degree of the coupling module is 30±1dB.

[0034] Furthermore,

[0035] The coupling flatness of the coupling module is ±2dB; and / or

[0036] The isolation of the coupling module is 30dB.

[0037] The beneficial effects of this utility model are:

[0038] The ultra-wideband coaxial coupler provided by this utility model is equipped with a DC-20G resistor. By adjusting its resistance value, it can couple broadband signals with a frequency range of 0GHz to 20GHz, thereby widening the frequency range for monitoring broadband signals and improving the accuracy of monitoring broadband signals to a certain extent. Attached Figure Description

[0039] Figure 1 This is a general principle block diagram of the present invention;

[0040] Figure 2 This utility model Figure 1 The corresponding circuit structure diagram.

[0041] Figure label:

[0042] 1. Signal input module;

[0043] 2. Main signal output module;

[0044] 3. Coupling module;

[0045] 4. Signal monitoring and output module;

[0046] R1, first resistor; R2, second resistor; R3, branch resistor. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0048] Example 1

[0049] As attached Figure 1 and appendix Figure 2As shown, this embodiment discloses an ultra-wideband coaxial coupler for widening the frequency range of monitored broadband signals. It mainly includes a signal input module 1, a main signal output module 2, a coupling module 3, and a signal monitoring output module 4. In use, the broadband signal from the broadband frequency conversion module (not shown) is first input into this embodiment from the receiving end of the signal input module 1. Then, the signal input module 1 can guide the received broadband signal from its output end to subsequent modules. Next, the resistor in the coupling module 3 is adjusted to a suitable resistance value so that the coupling module 3 can receive a suitable amount of broadband signal of the corresponding frequency. At this time, the broadband signal of the corresponding frequency is guided by the coupling module 3 to the signal monitoring output module 4. The signal monitoring output module 4 can monitor the performance related to the broadband signal. Operators can determine the current status of the broadband signal through the signal monitoring output module 4, thus completing the monitoring of the current broadband signal. The remaining broadband signals are directly transmitted to the main signal output module 2, which can transmit the currently received broadband signal to subsequent devices for storage. Of course, the staff can adjust the resistance value in the coupling module 3 in real time. This embodiment can also couple broadband signals with a frequency range of 0.1GHz to 18GHz, so that an ultra-wideband coaxial coupler for 0.1 to 18GHz broadband frequency converter modules can be customized.

[0050] The specific architecture of this embodiment is as follows: It includes a signal input module 1 for receiving a broadband signal transmitted by a broadband frequency converter module; a main signal output module 2 is provided at the output end of the signal input module 1, which is used to receive the broadband signal transmitted by the signal input module 1; a coupling module 3 is also provided at the output end of the signal input module 1, which is used to couple a portion of the broadband signal transmitted by the signal input module 1; the output end of the coupling module 3 is connected to the receiving end of a signal monitoring output module 4, which is used to monitor the broadband signal transmitted by the coupling module 3; a DC-20G resistor is provided in the coupling module 3. Compared with the prior art, this utility model broadens the frequency range for monitoring broadband signals and improves the accuracy of monitoring broadband signals to a certain extent, thus having high practicality.

[0051] In a specific application scenario, the coupling port of coupling module 3 can be SMA-K.

[0052] In practical use, the SMA-K coupling port can stably couple the input broadband signal into the internal circuitry of coupling module 3, thereby achieving stable transmission of the broadband signal; it can also ensure that the broadband signal is not distorted or attenuated during coupling. Furthermore, the broadband characteristics of the SMA-K coupling port allow it to adapt to broadband signals of different frequencies, thus meeting the testing requirements of this embodiment for broadband signals of various frequencies, and improving the efficiency and accuracy of broadband signal testing to a certain extent.

[0053] It should be noted that: Figure 2 The J2RF-IN port in the middle corresponds to Figure 1 Signal input module 1 in the middle, Figure 2 The J3RF-OUT port in the middle corresponds to Figure 1 Main signal output module 2 in the middle, Figure 2 The J4OUT port corresponds to Figure 1 Signal monitoring output module 4 in the middle.

[0054] In a specific application scenario, as shown in the appendix Figure 1 and appendix Figure 2 As shown, a first resistor R1 is provided in the coupling module 3; wherein, the receiving end of the first resistor R1 is connected to the output end of the signal input module 1, the output end of the first resistor R1 is directly or indirectly connected to the receiving end of the signal monitoring output module 4, and the output end of the first resistor R1 is directly or indirectly connected to GND.

[0055] In practical use, first adjust the resistance value of the first resistor R1 so that an appropriate amount of broadband signal of the corresponding frequency flows from the signal input module 1 into the signal monitoring output module 4 through the first resistor R1; then, the signal monitoring output module 4 performs real-time calculation and analysis on the received broadband signal; then, the staff can judge whether the current broadband signal meets the corresponding performance requirements by checking the information fed back by the signal monitoring output module 4.

[0056] Furthermore, the coupling module 3 is also provided with a second resistor R2; specifically, the receiving end of the second resistor R2 is connected to the output end of the first resistor R1, the output end of the second resistor R2 is connected to the receiving end of the signal monitoring output module 4, and the output end of the second resistor R2 is directly or indirectly connected to GND.

[0057] In practical use, the series connection of the first resistor R1 and the second resistor R2 can divide the voltage to adjust the amount of broadband signal received, preventing excessive broadband signal transmission from the signal input module 1 to the coupling module 3. The series connection of the two resistors can also limit the current flowing into the signal monitoring output module 4 from the power supply terminal (not shown in the figure), thus protecting the circuitry of the signal monitoring output module 4 to some extent. Furthermore, the series connection of the two resistors can effectively filter out noise in the broadband signal, thereby improving the accuracy of broadband signal monitoring in this embodiment.

[0058] Furthermore, the first resistor R1 can be a DC-20G chip resistor; in addition, the second resistor R2 can also be a DC-20G chip resistor.

[0059] In practical use, by adjusting the resistance values ​​of the first resistor R1 and the second resistor R2, operators can maintain stable resistance characteristics within the frequency range of 0GHz to 20GHz broadband signals, thus adapting to the current needs of broadband signal transmission and processing. Furthermore, chip resistors have advantages such as small size, light weight, and low parasitic parameters, and the series connection of the first resistor R1 and the second resistor R2 allows for flexible adjustment of their resistance values ​​to meet the design requirements of different circuits, thereby broadening the application scenarios of this embodiment to a certain extent.

[0060] In a specific application scenario, the impedance of the first resistor R1 can be 50Ω; in addition, the impedance of the second resistor R2 can also be 50Ω.

[0061] In practical use, the staff can adjust the resistance values ​​of the first resistor R1 and the second resistor R2 to achieve an impedance of 0~100Ω, which is convenient for matching with signal input modules 1 with different impedances, reducing the reflection and loss of the current broadband signal, thereby improving the transmission efficiency of the broadband signal.

[0062] In a specific application scenario, the maximum input power of coupling module 3 can be 2W.

[0063] In practical use, the staff can adjust the input power of the coupling module 3 according to the output power of the broadband frequency converter module. The staff can adjust the input power of the coupling module 3 at will within the range of 0~2W to ensure that the coupling module 3 can stably receive the broadband signal transmitted to this embodiment by the broadband frequency converter module, so as to improve the accuracy of the current broadband signal being monitored and to a certain extent further broaden the application scenarios of this embodiment.

[0064] Example 2

[0065] As attached Figure 1 and appendix Figure 2 As shown, this embodiment discloses an ultra-wideband coaxial coupler for further protection of the circuit in Embodiment 1. In addition to the components in Embodiment 1, it also includes a branch resistor R3. Specifically, the receiving end of the branch resistor R3 is connected to the output end of the second resistor R2, and the output end of the branch resistor R3 is grounded, i.e., connected to the GND port. Of course, in specific settings, the operator can set the branch resistor R3 to a DC-20G chip resistor to accommodate the broadband signal transmitted by the broadband frequency converter module to the broadband signal in the frequency range of 0GHz to 20GHz in this embodiment.

[0066] In practical use, the branch resistor R3 is grounded to form a low-pass filter effect, which can effectively suppress the noise and parasitic interference of the current broadband signal. The branch resistor R3 allows part of the current in the circuit to flow into the GND port through the branch resistor R3, forming a current shunting phenomenon, thereby protecting the signal monitoring output module and improving the overall circuit stability of this embodiment to a certain extent.

[0067] Furthermore, the impedance of the branch resistor R3 can be 50Ω. By adjusting the resistance value of the branch resistor R3 in real time, the reflection and loss of the current broadband signal can be further reduced.

[0068] In practical use, by adjusting the resistance values ​​of the first resistor R1, the second resistor R2, and the branch resistor R3, the staff can keep the return loss of the coupling module 3 approximately 15dB, the insertion loss approximately 1dB, the coupling degree approximately 30±1dB, the coupling flatness approximately ±2dB, and the isolation approximately 30dB, thereby achieving accurate monitoring of broadband signals in the frequency range of 0.1GHz to 18GHz in this embodiment.

[0069] The above description is merely an optional embodiment of this utility model and is not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the embodiments of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An ultra-wideband coaxial coupler, characterized in that, include: A signal input module (1) is used to receive a broadband signal transmitted by a broadband frequency converter module; a main signal output module (2) is used to receive the broadband signal transmitted by the signal input module (1), and the receiving end of the main signal output module (2) is connected to the output end of the signal input module (1); a coupling module (3) is used to couple part of the broadband signal transmitted by the signal input module (1), and the receiving end of the coupling module (3) is connected to the output end of the signal input module (1); a signal monitoring output module (4) is used to monitor the broadband signal transmitted by the coupling module (3), and the receiving end of the signal monitoring output module (4) is connected to the output end of the coupling module (3); wherein, a DC-20G resistor is provided in the coupling module (3).

2. The ultra-wideband coaxial coupler according to claim 1, characterized in that, The coupling port of the coupling module (3) is SMA-K.

3. The ultra-wideband coaxial coupler according to claim 1, characterized in that, The coupling module (3) includes: a first resistor (R1); the receiving end of the first resistor (R1) is connected to the output end of the signal input module (1), the output end of the first resistor (R1) is directly or indirectly connected to the receiving end of the signal monitoring output module (4), and the output end of the first resistor (R1) is directly or indirectly connected to ground.

4. The ultra-wideband coaxial coupler according to claim 3, characterized in that, The coupling module (3) further includes: a second resistor (R2); the receiving end of the second resistor (R2) is connected to the output end of the first resistor (R1), the output end of the second resistor (R2) is connected to the receiving end of the signal monitoring output module (4), and the output end of the second resistor (R2) is directly or indirectly connected to ground.

5. The ultra-wideband coaxial coupler according to claim 4, characterized in that: The first resistor (R1) is a DC-20G chip resistor; and / or the second resistor (R2) is a DC-20G chip resistor.

6. The ultra-wideband coaxial coupler according to claim 4 or claim 5, characterized in that, The coupling module (3) further includes: a branch resistor (R3); the receiving end of the branch resistor (R3) is connected to the output end of the second resistor (R2), and the output end of the branch resistor (R3) is grounded.

7. The ultra-wideband coaxial coupler according to claim 6, characterized in that: The impedance of the first resistor (R1) is 50Ω; and / or the impedance of the second resistor (R2) is 50Ω; and / or the impedance of the branch resistor (R3) is 50Ω.

8. The ultra-wideband coaxial coupler according to claim 1, characterized in that, The maximum input power of the coupling module (3) is 2W.

9. The ultra-wideband coaxial coupler according to any one of claims 1-5, 7, or 8, characterized in that: The return loss of the coupling module (3) is 15dB; and / or the insertion loss of the coupling module (3) is 1dB; and / or the coupling degree of the coupling module (3) is 30±1dB.

10. The ultra-wideband coaxial coupler according to claim 9, characterized in that: The coupling flatness of the coupling module (3) is ±2dB; and / or the isolation of the coupling module (3) is 30dB.

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