Low-sidelobe Planar Array Antenna Design

Based on a military radar technology warfare indicators, in this paper, I introduced a design process of antenna referring to the military radar technology warfare indicators, through computer simulation antenna unit rate and phase distribution are given, computer and simulation of the position of the antenna pattern, pitch-Shaped plans.Simulation using Matlab programming antenna power distribution unit, amplitude and phase distribution, Antenna Array distribution; Azimuth of the antenna pattern and pitch-Shaped Pattern. According to the simulation results, we choice printing symmetric planar array antenna form of the technical requirements of the high-gain, low-sidelobe, narrow beam properties, it can be formed in the direction of low-sidelobe beam, in the form of pitching Shaped beam. Antenna Array Implementation options include: antenna array composition, front amplitude and phase distribution of the antenna azimuth pattern and pitching, printing symmetric oscillator modules and fed the ranks of splitters Network Design Simulation, print Dipole module splitters, the rows and ranks of the network design and simulation. particularly the microstrip printing oscillator modules, power divider fed the ranks of the specific design and simulation and debugging methods encountered in the process of the solution to the problem , In the course of implementing the project, I encountered a number of problems, through repeated tests provide solution. Finally, the actual antenna test results.This paper focuses on the following elements :(1) Print dipole design and simulation. According to the simulation results, we produced a symmetric oscillator antenna modules, the test results are given, and of the radome, the radome antenna indicators of the impact of the adjustment method is given.(2) Realization of power divider: Microstrip splitters simulation and debugging process steps, as the high frequency antenna in the splitters in isolation resistance increases after input VSWR with the large difference simulation results are not satisfied with the design requirements. Choice of a variety of types of resistance experiments to find a final design specifications meet the requirements.(3) Microstrip line power-dividers and printing network connectivity symmetric oscillator; air strip line power-dividers network and microstrip power-divider network Connectivity .