penetrating power structure
A split-structure and power-splitting technology, applied in the field of low-clutter transmitting antennas, can solve the problems of transmission mode change and power-splitting structure electric field distortion cannot be eliminated, and achieve the effects of ensuring microwave performance, avoiding changes in transmission mode, and saving space
Active Publication Date: 2018-11-30
SOUTHWESTERN INST OF PHYSICS
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Problems solved by technology
[0003] The technical problem solved by the present invention is that reducing the length of the power division structure in the prior art will make the electric field distortion in the power division structure unable to be eliminated. At the same time, the existing power division structure may make the transition section narrow in the case of multi-level power division. The problem of the change of the transmission mode caused by the widening of the side to be larger than the wide side, and then provide a small length and the internal electric field distortion can basically eliminate and reduce the risk of the situation where the narrow side of the transition section becomes wider than the wide side formula work structure
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[0018] The technical solutions and beneficial effects of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] Such as Figure 1 to Figure 3 As shown, the penetrating power splitting structure of the present invention includes a transition section 3 for connecting the input waveguide 1 and the wider waveguide 2 for power splitting, and also includes at least one level of power splitting structure, as shown in the figure In the embodiment of the present invention, it includes a two-stage power division structure, and the first-level power division structure 4 in the power division structure adopts a penetrating structure to probe into the transition section 3, and the penetrating depth is a quarter of the waveguide wavelength.
[0020] The penetration type power division structure of the present invention integrates two functions of transition and power division in the transition section, and simul...
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The present invention discloses a probing power division structure. The probing power division structure comprises a transition section configured to connect with the waveguide at an input end and wide waveguide capable for power division and at least one first-order power division structure. The first-order power division structure in the power division structure employs a probing structure to probe into the transition section, and the probing depth is a quarter of the guide wavelength. The probing power division structure is high in integration level and saved in space, and is able to furthest ensure the microwave performance. According to the invention, because a first-order power division splitter plate is probed into the transition section, the risk may be reduced that the narrow side of the transition section is widen up to be larger than the wide side, and the changing of a transmission mode is avoided.
Description
technical field [0001] The invention relates to the technical field of low clutter transmitting antennas, in particular to a penetrating power division structure. Background technique [0002] The tokamak device generates plasma by ohmic coil discharge, and uses the induction of the ohmic coil to maintain the plasma current and conduct plasma ohmic heating. Low clutter heating and current driving are important means of heating and current driving in the experimental research of tokamak devices, and the transmitting antenna is an important part of it. At present, the research on low-clutter system transmitting antennas in the world mainly focuses on the third-generation low-clutter antenna based on the concept of PAM (Passive-Active Multijunction, with-passive spaced multi-junction waveguide array antenna). In general, this low-clutter antenna is generally composed of several sub-waveguide launch ports with different phases to form a suitable launch spectrum, wherein each su...
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IPC IPC(8): H01P5/12
Inventor 白兴宇梁军曾浩饶军
Owner SOUTHWESTERN INST OF PHYSICS