Phase shifter dielectric plate and phase shifter

Abstract

The invention discloses a phase shifter dielectric plate, which is arranged between a phase shift circuit and a cavity and moves along a preset locus, wherein the dielectric plate is provided with a plurality of protrusions for pressing against the top wall or the bottom wall of the cavity, and the protrusions are higher than the plane of the dielectric plate. When the phase shifter dielectric plate is applied to a phase shifter, the dielectric plate is in tight fit with the cavity, and the problem of high signal index fluctuation in the moving process of the dielectric plate due to a large clearance between the dielectric plate and the cavity is solved; moreover, because the contact area between the protrusions and the cavity is small, high friction is not produced between the both, and abnormal transmission of the dielectric plate is avoided. In addition, the invention further discloses a phase shifter adopting the dielectric plate.

Description

【Technical field】 [0001] The invention relates to the technical field of communication devices, in particular to a phase shifter dielectric board and a phase shifter using the phase shifter dielectric board. 【Background technique】 [0002] In the coverage of mobile communication network, the electric adjustable base station antenna is one of the key equipment of the coverage network, and the phase shifter is the most core component of the electric adjustable base station antenna, the performance of the phase shifter directly determines the performance of the electric adjustable antenna , which in turn affects the coverage quality of the network, so the importance of the phase shifter in the field of mobile base station antennas is self-evident. [0003] The existing type of phase shifter mainly changes the propagation speed of the signal in the phase shifter by moving the medium in its cavity, so that the output signal flowing through the phase shifter forms a continuous lin...

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Problems solved by technology

[0004] Since there is a gap between the dielectric plate and the upper and lower inner walls of the cavity, if the gap is too small (for example, the dielectric plate is in contact with the top wall of the cavity), the pulling force required to move the dielectric plate will be too large, which will easily cause abnormal transmission and cannot make the signal linear. Phase difference; if the gap is too large, it will easily cause the dielectric board to bump up and down during the movement process, and the electrical index of the signal will fluctuate greatly

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