High Gain And Low Sidelobe Planar Array Microstrip Antenna Developed

At first this paper focuses on the design and manufacture of the L band and C band planar microstrip antenna arrays. Following the theoretical analysis, initial parameters are calculated out. Then software simulation is performed for optimizing each parameter. After getting the optimized parameters, actual manufacture is carried out. Finally, testing and debugging take affects to meet with the requirement of the contract. In the paper, the way of each designing and optimizing process is showed in detail. Also there are a lot of testing diagrams and tables, which directly shows the results of each testing condition. The final result qualifies the designed request. Especially the high gain designing is successfully. The other emphasis of this paper is the design of the X band low-side lobe microstrip antenna arrays. First of all , the theory of designing the low-side lob antenna is introduced. Then with the theoretical analysis, initial parameters are calculated out. And then software simulation is performed for optimizing each parameter such as patch , T junction , equal and unequal power divider. 24 elements and 64 elements(8 × 8) of the low-side lobe microstrip antennas are designed by feeding in different current amplitude distribution but the same phase distribution. Finally Comparing the antennas' test results, the antennas' specifications achieve to the goal and the side lobe level of the 24 elements' H plan is -23dB !...