Phase adjustment device and phase adjustment unit

A phase adjustment device and phase adjustment technology, which are applied to electrical components, circuits, waveguide-type devices, etc., can solve problems such as reducing system reliability, increasing system complexity, difficulty in production and assembly, and increasing motion pairs, so as to improve phase shifting. Efficiency, simple structure, and the effect of increasing the size ratio

CN104505560BActive Publication Date: 2018-01-12SHENZHEN EPLU SCI TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-01-12

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Abstract

The invention discloses a phase adjustment device and a phase adjustment unit. The phase adjustment device includes a shielding cavity and a signal circuit board fixedly arranged in the shielding cavity; the signal circuit board includes a base material and a signal strip line arranged on the base material; the signal strip line It includes a signal transmission line arranged in a first direction; the phase adjustment device also includes a sliding medium closely arranged on the signal circuit board, and an operating rod that can drive the sliding medium to slide in a second direction; the The operating end of the operating rod extends out of the shielding cavity and is in the same direction as the moving direction of the sliding medium; when the sliding medium moves in the second direction, the electrical length of the signal transmission line is continuously changed. Through the same direction movement of the operating rod and the sliding medium, the electrical length of the signal transmission line is continuously changed to achieve the adjustment effect, and has the advantages of simple structure and high reliability.
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Description

technical field

[0001] The invention relates to a communication device, in particular to a phase adjustment device and a phase adjustment unit which can be used for a base station antenna. Background technique

[0002] Currently in the field of communication, antennas are widely used in communication devices. The antenna phase shifters in the industry can be divided into integrated and distributed according to the unit arrangement. Among them, Chinese Invention Patent No. 201180001177.8 discloses an integrated phase shifter. The number of phase shifting units is limited by the lateral size, making it difficult to expand, which is not conducive to beamforming of high-gain antennas with many radiating units.

[0003] For example, Chinese Invention Patent No. 201410094086.9 discloses a distributed phase shifter, which includes an upper shielding plate, a lower shielding plate, a tie rod, a dielectric block, a conductor strip, and a transmission slide plate. By setting the con...

Examples

Embodiment Construction

[0035] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0036] Such as Figure 1 to Figure 7 As shown, it is an embodiment of the phase adjustment device of the present invention, which includes a shielding cavity 1, a signal circuit board 4, a sliding medium, an operating rod 5, etc., through the same direction movement of the operating rod 5 and the sliding medium, the continuous linear The electrical length of the signal transmission line can be changed accurately to realize the beamforming of the antenna and control the beam pointing of the electric adjustment base station antenna.

[0037] The shielding cavity 1 can be made of metal materials, on the one hand, it can be used as the grounding of the electromagnetic wave transmission line, on the other hand, it can play t...