Title :
A metal-only reflectarray (MOR) antenna excited by equivalent surface current sources to model arbitrary feeds
Author :
Yong Heui Cho ; Seungkyun Lim ; Sangwook Lee ; Minwoo Yi ; Woosang Lee ; Joonho So
Author_Institution :
Dept. of Inf. & Commun. Eng., Mokwon Univ., Daejeon, South Korea
Abstract :
A metal-only reflectarray (MOR) antenna for 77 [GHz] was analyzed with the equivalent surface current sources. The equivalent current sources can be used to produce the incident fields radiated from a feed. When a feed is an open-ended rectangular waveguide (OERW), the calculated antenna gains for the equivalent current sources, point source, and CST Microwave Studio (MWS) are 31.8, 30.0, and 31.6 [dBi], respectively. The simulated results of the equivalent current sources and CST MWS are in good agreement with each other in terms of the antenna gain.
Keywords :
antenna feeds; antenna radiation patterns; constant current sources; rectangular waveguides; reflectarray antennas; CST Microwave Studio; MOR antenna; MWS; OERW; antenna feed; equivalent surface current source; frequency 77 GHz; incident field radiation; metal-only reflectarray antenna; model arbitrary feed; open-ended rectangular waveguide; Antenna feeds; Antenna radiation patterns; Current density; Millimeter wave communication; equivalent current source; feed modeling; metal-only reflectarray; surface equivalence principle;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6902176
