High-Gain Planar Array Designed by Using Fragmented Slots

作者：Liu Yufeng; Chen Xing^*; Ren Xueyao; Liu Changjun; Huang Kama

来源：International Journal of RF and Microwave Computer-Aided Engineering, 2014, 24(3): 382-388.

DOI：10.1002/mmce.20771

• fragmented slots
• corporate feeding network
• high-gain
• genetic algorithm

A novel planar array antenna is proposed. It utilizes fragmented slots as its radiation elements and explores employing this highly flexible structure for achieving high gain. Each fragmented slot is gridded into 8 x 8 rectangular pixels, whose dimensions as well as conducting or nonconducting properties are optimized by the Genetic Algorithm (GA) in parallel on a PC cluster. A prototype antenna with 4 x 4 slots was designed, fabricated and measured. Both the simulation and measurement results show that this antenna possesses a high gain of 20.5 dBi at its working frequency of 5.8 GHz, and thus the corresponding aperture efficiency is up to 95%, which is much higher than that of the planar arrays with rectangular slots or split-ring resonator (SRR) slots.

• 出版日期2014-5
• 单位四川大学