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High‐gain planar array designed by using fragmented slots
Author(s) -
Liu Yufeng,
Chen Xing,
Ren Xueyao,
Liu Changjun,
Huang Kama
Publication year - 2014
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20771
Subject(s) - planar , antenna (radio) , aperture (computer memory) , high gain antenna , microwave , antenna gain , radiation pattern , planar array , radiation , computer science , optics , acoustics , antenna aperture , physics , telecommunications , computer graphics (images)
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 × 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 × 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. © 2013 Wiley Periodicals, Inc. Int J RF and Microwave CAE 24:382–388, 2014.