Testing device for improving load power capacity of monitoring coupler
The high-frequency and high-power energy is divided into multiple small-power loads through a four-port Magic T power divider, and the metering equipment is protected by the attenuator, which solves the problem of insufficient power capacity of the traditional monitoring coupler, and realizes high-frequency and large-scale Uniform absorption and metering accuracy of power and energy.
Patent Information
- Application Number
- CN202420081127.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-12
AI Technical Summary
Traditional monitoring couplers cannot meet power capacity requirements in high-frequency and high-power applications, and the thermal effects and volume limitations of materials lead to insufficient power capacity and cannot withstand high-power loads.
The four-port Magic T power divider is used to divide the energy of the power amplifier into two sets of small power loads, and the power meter is protected by an attenuator to ensure uniform energy distribution and metering accuracy.
It effectively improves the load power capacity of the monitoring coupler, achieves uniform absorption of high-frequency and high-power energy and metering accuracy, and avoids damage to the equipment by high power.
Smart Images
Figure CN222145126U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a testing device for improving the load power capacity of a monitoring coupler. Background Art
[0002] In the power amplifier test system, the monitoring coupler is an important component, which is connected at the end of the power amplifier to monitor the power. However, with the increase of high frequency and high power requirements, the monitoring coupler faces some challenges.
[0003] As the operating frequency is higher, the high-frequency loss also increases accordingly, which puts higher requirements on the power capacity of the monitoring coupler. The power capacity of traditional monitoring couplers often cannot meet these requirements.
[0004] First, material technology is the key to achieving high power capacity. In high-frequency and high-power applications, monitoring couplers need to use materials that can withstand high power. However, the transmission of high-power energy will trigger thermal effects inside the material, causing the temperature to rise. This thermal effect will cause the thermal expansion and loss of the material to increase, thereby limiting the power capacity of the material.
[0005] Secondly, volume constraints also impose requirements on the design and manufacture of monitoring couplers. Due to the characteristics of high-frequency signals, monitoring couplers need to have small size and low circuit loss. However, achieving high power capacity may require increasing device size and structural complexity, which conflicts with volume constraints.
[0006] Therefore, it is difficult to design and manufacture monitoring couplers to achieve high power capacity. Currently available monitoring couplers on the market are often unable to withstand high power loads.
[0007] In view of the above problems, a test device for improving the load power capacity of a monitoring coupler is proposed. Utility Model Content
[0008] The utility model aims to provide a testing device for improving the power capacity of a monitoring coupler load, so as to solve the problem in the background technology that the monitoring coupler load cannot meet the demand for high power capacity.
[0009] In order to solve the above technical problems, the utility model provides the following technical solutions: a test device for improving the load power capacity of a monitoring coupler, comprising a power amplifier, a monitoring coupler, a four-port magic T power divider and two sets of load components,
[0010] The power amplifier is connected to the input end of the monitoring coupler through the total output port, the output end of the monitoring coupler is connected to the total input port of the four-port magic T power divider, and the output end of the four-port magic T power divider is connected to two groups of loads;
[0011] The four-port magic-T power divider is used to divide the energy of the power amplifier into equal parts through the monitoring coupler and make the divided energy be absorbed by the load.
[0012] Preferably, the total power of the two groups of load elements is greater than 130% of the maximum power of the power amplifier.
[0013] Preferably, the output end of the four-port magic T power divider is two groups of distribution ports, so that the four-port magic T power divider evenly distributes the energy of the power amplifier through the two groups of distribution ports.
[0014] Preferably, the two groups of distribution ports are connected via a balancing load to balance the power between the two groups of distribution ports.
[0015] Preferably, the coupling end of the monitoring coupler is connected to the input end of the attenuator, and the output port of the attenuator is connected to a power meter for testing the energy of the input end of the monitoring coupler;
[0016] The attenuator is used to protect the power meter from being damaged by high power energy.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] The utility model can effectively improve the load power capacity of the monitoring coupler by using a four-port magic T power divider to equally divide the energy of the power amplifier and distribute it to two groups of loads. This distribution method can make high-frequency high-power energy absorbed by multiple low-power loads, solving the problem of high-power loads of the monitoring coupler that are not adapted.
[0019] By adding a balanced load between the two distribution ports of the four-port magic T power divider, power balance between the two distribution ports can be achieved. This helps ensure that energy is evenly distributed between different loads and improves the accuracy of the test.
[0020] The coupling port of the monitoring coupler is connected to the input end of the attenuator, and the output end of the attenuator is connected to the power meter. The attenuator can protect the power meter from damage by high-power energy. The attenuator can reduce the energy level to which the power meter is subjected, ensuring the normal operation and accuracy of the power meter. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0022] Figure 2 Schematic diagram of the structure of a four-port magic T power divider according to an embodiment of the utility model
[0023] Figure 3 Schematic diagram of the system structure of an embodiment of the utility model.
[0024] In the figure: 1. Power amplifier; 2. Monitoring coupler; 3. Four-port magic-T power divider; 4. Load; 5. Attenuator; 6. Power meter; 7. Balanced load. DETAILED DESCRIPTION
[0025] In order to solve the problem that the monitoring coupler load cannot meet the demand for high power capacity, the embodiment of the utility model provides a test device for improving the power capacity of the monitoring coupler load. The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] See also Figure 1-2 The utility model provides a test device for improving the load power capacity of a monitoring coupler, comprising a power amplifier 1, a monitoring coupler 2, a four-port magic T power divider 3 and two groups of load components 4, wherein the power amplifier 1 is a ka / k band power amplifier 1, the power amplifier 1 is connected to the input end of the monitoring coupler 2 through a total output port, the output end of the monitoring coupler 2 is connected to the input total port of the four-port magic T power divider 3, and the output end of the four-port magic T power divider 3 is connected to two groups of load components 4; the total power of the two groups of load components 4 is greater than 130% of the maximum power of the power amplifier 1.
[0027] The output end of the four-port magic T power divider 3 is two groups of distribution ports, so that the four-port magic T power divider 3 evenly distributes the energy of the power amplifier 1 through the two groups of distribution ports. The two groups of distribution ports are connected through a balancing load 7 to balance the power between the two groups of distribution ports.
[0028] The coupling end of the monitoring coupler 2 is connected to the input end of the attenuator 5, and the output port of the attenuator 5 is connected to a power meter 6 for testing the energy of the input end of the monitoring coupler 2; wherein the attenuator 5 is used to protect the power meter 6 from being damaged by high-power energy.
[0029] The four-port magic-T power divider 3 is used to divide the energy of the power amplifier 1 into equal parts through the monitoring coupler 2 and make the divided energy be absorbed by the load 4 .
[0030] The working principle of a test device for improving the load power capacity of a monitoring coupler 2 provided by the utility model is as follows: the total output port of a power amplifier 1 is connected to the input end of a monitoring coupler 2, and the output end of the monitoring coupler 2 is connected to the total port of a four-port magic T power distributor 3. The four-port magic T power distributor 3 is a conventional waveguide distributor. When power energy is input from the total port of the four-port magic T power distributor 3, the power energy will be output from 32 distribution ports of the four-port magic T power distributor. The energy of the distribution port is half of the total port input energy. At the same time, a balancing load 7 is connected between the two distribution ports to balance the power between the two groups of distribution ports.
[0031] The distribution ports of the four-port magic T power distributor 3 are connected to two low-power loads, and the total power of the two low-power loads exceeds 130% of the maximum power of the high-power amplifier 1.
[0032] The coupling port of the monitoring coupler 2 is connected to the input port of the attenuator 5, and the output port of the attenuator 5 is connected to the power meter 6. The power meter 6 is a precision instrument with high accuracy but low power tolerance. An attenuator 5 is added in front of the power meter 6 to protect the power meter 6.
[0033] When the power amplifier 1 is working, the energy output from the total port will first pass through the monitoring coupler 2, and the energy output from the total port will be sampled by the coupled port of the monitoring coupler 2 to produce a small power signal. The power meter 6 reads the small power signal and converts and tests the energy input from the total port of the monitoring coupler 2, that is, the total output port energy of the power amplifier 1. At the same time, the energy output from the total port of the power amplifier 1 enters the four-port magic T power divider 3 through the monitoring coupler 2, and the energy is equally divided by the power divider and enters the two loads 4 and is absorbed.
[0034] This method can flexibly use multiple low-power loads to achieve the absorption of high-frequency and high-power energy, solving the problem that there is currently no suitable monitoring coupler 2 high-power load.
[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A test device for improving the load power capacity of a monitoring coupler, characterized in that: The invention comprises a power amplifier (1), a monitoring coupler (2), a four-port magic T power divider (3) and two sets of load components (4). The power amplifier (1) is connected to the input end of the monitoring coupler (2) via a total output port, the output end of the monitoring coupler (2) is connected to the total input port of a four-port magic T power divider (3), and the output end of the four-port magic T power divider (3) is connected to two groups of load components (4); The four-port magic-T power divider (3) is used to divide the energy of the power amplifier (1) into equal parts through the monitoring coupler (2) and to allow the divided energy to be absorbed by the load element (4).
2. A test device for improving the load power capacity of a monitoring coupler according to claim 1, characterized in that: The total power of the two groups of load elements (4) is greater than 130% of the maximum power of the power amplifier (1).
3. A test device for improving the load power capacity of a monitoring coupler according to claim 2, characterized in that: The output end of the four-port magic T power distributor (3) is two groups of distribution ports, so that the four-port magic T power distributor (3) evenly distributes the energy of the power amplifier (1) through the two groups of distribution ports.
4. A test device for improving the load power capacity of a monitoring coupler according to claim 3, characterized in that: The two groups of distribution ports are connected via a balancing load (7) to balance the power between the two groups of distribution ports.
5. A test device for improving the load power capacity of a monitoring coupler according to claim 4, characterized in that: The coupling port of the monitoring coupler (2) is connected to the input end of the attenuator (5), and the output end of the attenuator (5) is connected to a power meter (6) for testing the energy of the input end of the monitoring coupler (2); The attenuator (5) is used to protect the power meter (6) from being damaged by high-power energy.