Input/output coupler
A technology of input and output coupling and output coupler, which is applied to the coupling device of the transit time type electron tube, etc., can solve the problems of large structural discontinuity, small reflection coefficient, limited current, etc., and achieves a simple and compact overall structure and port reflection. The effect of small coefficient and no drop in breakdown voltage
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[0029] The present invention will be described in detail below with reference to specific examples and drawings.
[0030] The invention is like figure 1 As shown, it is composed of an input coupler and an output coupler. The input coupler and the output coupler have the same structure and are symmetrically distributed at both ends of the rectangular interleaved double-grid slow wave structure; the input coupler and the output coupler are composed of a transition section, a rectangular waveguide and The reflective isolator is composed of the transition section, the rectangular waveguide and the central axis of the reflective isolator being parallel to the z direction, the whole structure is mirror-symmetrical about the plane of x=0, and the E-face opening of the rectangular interlaced double-grid slow-wave structure is connected to the rectangular waveguide through the transition section At one end, the reflective isolator is a cross-shaped cavity structure composed of z-direction ...
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