Millimeter-wave Phased Array Antenna Array Of Research And Analysis

Millimeter-wave phased array antennas, because of its powerful features, flexible working methods, computer-controlled non-inertial beam scanning, has become more and more popular in many military radars and satellites. Because phased array antenna has the characteristics of using high-speed beam scanning, millimeter-wave radar can scan rapidly. Also, phased array antenna beam shape can be changed through the phase distribution, so millimeter-wave radar can change the antenna beam width to meet the requirements.In this paper, we research the 8mm band phased antenna array. And then, we produce it according to the technical indication.Antenna element and antenna array factor determine the performance of antenna arrays. In this paper, their analysis and design are discussed in detail. We analysis the radiation performance of the waveguide radiator and conical horn antenna .We also simulate the pattern characteristics of one-dimensional linear array, two-dimensional planar array and hexagonal array. Conical horn antenna used as a unit factor, one-dimensional linear array composed of a cross array as an array factor, the production of a phased antenna array has been done. From the experimental and simulation results, the scanning range, side-lobe size, array gain, main lobe width, as well as VSWR meet the proposed requirements. We use waveguide radiator to do wide-angle scanning array models. From the simulation results, we find these models meet the requirements of the wide-angle scanning.In the end, we discuss the amplitude and phase errors on antenna array side lobe level and beam pointing, and introduce the method of array antenna calibration.