Title :
Reflectarray with EBG elements for improved radiation characteristics
Author :
Ji Hwan Yoon ; Eunyoung Kim ; Young Joong Yoon ; Woo-sang Lee ; Joon-Ho So
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
A reflectarray composed of elements with electromagnetic bandgap (EBG) characteristics to improve radiation performances is proposed. The EBG elements are composed of patches and multiple via-holes to provide required reflection phase and bandgap characteristics at target frequency of 10 GHz. Compared with a normal patch reflectarray without EBG elements, the gain is improved by 1.4 dB, and the SLLs are suppressed by 1.5 dB (E-plane) and 5.3 dB (H-plane), respectively.
Keywords :
antenna radiation patterns; directive antennas; microwave antenna arrays; photonic band gap; reflectarray antennas; EBG characteristics; EBG elements; directive antennas; electromagnetic bandgap characteristics; frequency 10 GHz; gain 1.4 dB; gain 1.5 dB; gain 5.3 dB; improved radiation characteristics; normal patch reflectarray; radiation performance; reflectarray; reflection phase; target frequency;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.1115
