Two-dimensional lattice multi-beam phased array and its design method

Abstract

The invention discloses a two-dimensional dot matrix multi-beam phased array and a design method thereof, wherein the two-dimensional dot matrix multi-beam phased array includes: multi-channel parallel input power division transmission lines, multi-channel parallel output power division Transmission lines, multiple amplitude and phase control units and multiple adjustable resistance load units, multiple parallel input power distribution transmission lines and multiple parallel output power distribution transmission lines are arranged alternately, and each input power distribution transmission line divides multiple input lines , each input line is respectively connected to an amplitude-phase control unit, each output power division transmission line is divided into multiple output lines, and each output line is connected to an amplitude-phase control unit, each input power division transmission line output terminal and each The input terminals of the output power division transmission line are respectively connected with an adjustable resistance load unit. The invention provides a two-dimensional dot matrix multi-beam phased array with small size and simple structure, which effectively improves the integration degree of multi-beam phased array chip design, reduces cost and is widely used.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a two-dimensional lattice multi-beam phased array and a design method thereof. Background technique [0002] With the continuous development of phased array radar, people's demand for antenna wave speed control continues to increase, and the research on control circuits is also more in-depth. The multi-beam phased array radar can quickly scan and detect the airspace by forming multiple beams at the same time, and can also effectively track multiple fast-moving targets, which is a major advantage of the phased array radar. The traditional multi-beam phased array mainly realizes the distribution of signals through the power dividers of the Wilkinson structure and the size related to the electrical length. More crossovers become extremely complex and proportionally increase in size, which causes the power distribution and combining network to gradually exceed the size of the...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the distribution network of the power splitter will become extremely complicated with the increase of beams in the traditional multi-beam phased array, and the size will increase proportionally, resulting in the size of the power distribution synthesis network gradually exceeding the beam width phase control unit, and the insertion loss increases proportionally

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