Title :
A comparison between TEM- & TE10-excited reflectarray element
Author :
Karnati, K.K. ; Yusuf, Yazid ; Ebadi, Siamak ; Xun Gong
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL, USA
Abstract :
Quality (Q)-factor analysis of reflectarray unit cells is extended to predict performance under parallel plate waveguide excitation, corresponding to normal incidence. Q factors obtained from parallel plate waveguide (PPWG) are compared with rectangular metallic waveguide (RWG), different coupling conditions are discussed, and loss performance is analyzed. A case study illustrates the effects of the TEM and TE10 modes of excitation, which represent plane waves with different incident angles, on reflection properties of unit cells.
Keywords :
Q-factor; antenna radiation patterns; cavity resonators; microstrip antenna arrays; millimetre wave antenna arrays; parallel plate waveguides; rectangular waveguides; reflectarray antennas; PPWG; TE10-excited reflectarray element; TEM-excited reflectarray element; cavity resonators; coupled-mode analysis; coupling conditions; incident angles; loss performance; microstrip reflectarray antennas; normal incidence; parallel plate waveguide excitation; plane waves; quality-factor analysis; reflectarray unit cells; reflection properties; Couplings; Microstrip antennas; Q-factor; Rectangular waveguides; Reflection; Reflector antennas; Substrates; Cavity resonators; Quality (Q)-factor; coupled-mode analysis; microstrip antennas; rectangular waveguides; reflectarray;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711437
