A microwave load for 0-6ghz calorimetric microwave power meter

A microwave power meter and microwave technology, applied in the direction of measuring electric power, electrical devices, measuring devices, etc., can solve the problems of insufficient precision of the coupling measurement method and the inability to measure the microwave and millimeter wave power of several watts to hundreds of watts, so as to improve the Measurement accuracy, easy and precise control and measurement, and the effect of widening the power measurement range

CN110161303BActive Publication Date: 2020-12-01UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-12-01

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Abstract

The invention discloses a microwave load for a 0-6GHz calorimetric microwave power meter. The load includes: a microwave load circuit, a liquid circulation and heat conduction channel, a liquid channel interface, a microwave load circuit interface, a thermal insulation device, and a sealed casing; Both the heat insulation device and the microwave load circuit are cavity structures, the microwave load circuit is fixed in the inner cavity of the heat insulation device, and the liquid channel interface and the microwave load circuit interface are reserved on the heat insulation device; one end of the cavity in the microwave load circuit is connected to the microwave load The circuit interface, the liquid circulation and heat conduction channel are located in the cavity of the microwave load circuit, the liquid circulation and heat conduction channel are close to the microwave load circuit, and the two ends of the liquid circulation and heat conduction channel are connected to the liquid channel interface; it overcomes the need for direct measurement and high-power water The load method cannot measure the microwave and millimeter wave power of several watts to hundreds of watts, and the coupling measurement method is not accurate enough.
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Description

technical field

[0001] The invention relates to the field of microwave power measurement, in particular to a microwave load for a 0-6GHz calorimetric microwave power meter. Background technique

[0002] Accurate measurement of medium and low microwave power is very important for industrial production and national defense technology. Generally, low-power microwave (milliwatt level) can be directly and accurately measured by existing commercial equipment. When measuring medium and low power (several watts to hundreds of watts) microwaves, an equal proportion of low power microwaves can be obtained through a directional coupler, and then the low power microwaves can be directly measured, and then the microwave power can be obtained according to the coupling coefficient of the device used, but this device The coupling coefficient will change at different frequencies and different powers, resulting in low measurement accuracy. Calorimetric water load can also be used for microwa...

Examples

Embodiment Construction

[0029] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of not conflicting with each other, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0030] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from the scope of this description. Therefore, the protection scope of the present invention is not limited by the following disclosure. limitations of specific examples.

[0031] The system structure of the present invention is as figure 1 As shown, it includes a liquid channel inlet 101 , a liquid channel outlet 102 , a liquid ci...