High-power microwave water load

Abstract

The invention discloses a high-power microwave water load, which includes a small section wave-guide, a transition wave-guide and a large section wave-guide connected in sequence. The invention is characterized in that the large sectional wave-guide end is inclinedly mounted on the right side wall of the high-pressure water tank, ceramic chips are mounted therein, intake channels circulate around the upper and lower lateral walls and rear lateral wall of the high-pressure water tank, inlet openings are open on the upper and lower lateral walls of the high-pressure water tank to communicate with the intake channel, water inlet pipes are communicated with the intake channel on the rear lateral wall of the high-pressure water tank, and outlet pipes are provided on the left lateral wall off the high-pressure water tank. The liquid body current mode adopted by the invention can quickly lead-out the microwave power from the high-pressure water tank, avoids vaporization caused by excessive heating generated in the dead zone with non-smooth current, and can realize high average power, long pulse and high power density microwave matching and power measurement.

Description

technical field [0001] The invention belongs to the field of microwave technology, in particular to a high-power microwave water load. Background technique [0002] A matched load is a one-port component that can fully absorb the input power. It is a short-terminated waveguide or coaxial line in which an absorbing substance is placed. It is often used as a matching standard in microwave measurement; when adjusting instruments and machines (such as TV transmitters, broadcast transmitters, radars, etc.), it is used to establish a traveling wave state in a transmission system, and is often used as an equivalent antenna. Its main technical indicators are working frequency band, input VSWR and power capacity. [0003] Water load is a kind of matching load. It is a terminal device that uses water as an absorbing substance and carries out heat from the flow of water. The temperature of the inflowing water increases after absorbing microwave power. According to the flow of water a...

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Problems solved by technology

[0004] There is a water load in the prior art, which consists of a high-pressure water tank and a large-section waveguide, a transitional waveguide, and a small-section waveguide installed on its side. There is a ceramic sheet between the large-section waveguide and the side wall of the high-pressure water tank. One side of the high-pressure water tank is connected. The water pipe and the other side are equipped with an outlet pipe. Although the water in the high-pressure water tank of this structure can be heated evenly, the degree of automatic mixing inside the water body is not enough to ensure sufficient low temperature at the center of the most critical ceramic sheet. The water flow can effectively export a large amount of microwave deposition power in this area

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