High-power flexible waveguide transmission assembly and processing method thereof

Abstract

The invention discloses a high-power flexible waveguide transmission assembly and a processing method thereof. The flexible waveguide transmission assembly comprises a flexible waveguide, a first waveguide converter and a second waveguide converter, wherein the length of the flexible waveguide is matched according to a transmission distance, and the first waveguide converter and the second waveguide converter are connected to the two ends of the flexible waveguide; the flexible waveguide has no inner conductor and can be bent at will in the mounting space; and signals are transmitted through the first waveguide converter, the flexible waveguide and the second waveguide converter in sequence, and a TE mode is always kept in the transmission process. The flexible waveguide comprises an insulating medium, a shielding layer and a sheath which are sequentially arranged from inside to outside. The first waveguide converter and the second waveguide converter adopt a direct feed switching structure or a side feed switching structure, the cross section of the flexible waveguide is elliptical, and the invention also provides a processing method of the flexible waveguide transmission assembly aiming at the first waveguide converter and the second waveguide converter with different structures. High-power signals can be reliably transmitted, the breakdown risk is avoided, and meanwhile machining is easier.

Description

technical field [0001] The invention belongs to the technical field of waveguide transmission, and relates to a high-power flexible waveguide transmission component and a processing method thereof. Background technique [0002] At present, in the industry, for long-distance waveguide signal transmission, flexible RF coaxial cables are usually used as transmission lines, such as figure 1 As shown, in the traditional structure, when the signal is transmitted, the input port and the output port are both rectangular waveguide ports, which are used to transmit the TE10 mode, but the RF coaxial cable used in the middle transmits the TEM mode. Therefore, the mode during the entire transmission process A transformation occurs, TE-TEM-TE. When switching between different modes, it will inevitably cause obvious mutations in the electric field inside the RF coaxial waveguide cable assembly, resulting in a large electric field intensity, which will easily cause electrical breakdown dur...

AI Technical Summary

Problems solved by technology

When switching between different modes, it will inevitably cause obvious mutations in the electric field inside the RF coaxial waveguide cable assembly, resulting in a large electric field intensity, which will easily cause electrical breakdown during high-power signal transmission, especially in low-pressure environments. , due to the reduced breakdown field strength, breakdown is more likely to occur when transmitting high-power signals

At the same time, the transmission power of traditional structural products is limited by the withstand power of the RF coaxial cable, therefore, the transmission of high-power signals cannot be realized

[0003] In some special fields, such as national defense weaponry, etc., because national defense weaponry is going to be higher, faster and farther, higher means that the product needs to withstand an extremely low pressure environment, and faster and farther means that the product The power of the transmitted signal is greater, so the product needs to withstand higher power in a low-pressure environment, but the existing products cannot withstand higher power in a low-pressure environment due to their inherent structural characteristics, which has been severely restricted development of weaponry

[0004] Although the use of phased array radars for national defense weapons and equipment has advantages over mechanical scanning radars, phased array radars also have high cost (often dozens or even hundreds of times that of mechanical scanning radars), large size, heavy weight, and high energy consumption. , complex structure, and poor signal-to-noise ratio, many national defense weapons and equipment still use mechanical scanning radars. The main structure of mechanical scanning radars is "high-power signal source-feeder-antenna". The position, orientation, and state of the object change arbitrarily, and also drive the feeder to move in a complex and narrow space.

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