Title :
Waveguide slot array antenna with EBG high-impedance surface structure
Author :
Bin, Li ; Long, Li ; Chang-hong, Liang
Author_Institution :
National Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China
Abstract :
A method of raising the front to back (F/B) ratio on the pattern for the slot array antenna of rectangular waveguide using electromagnetic band-gap (EBG) structure as a high-impedance ground plane is studied in this paper. An example antenna is designed and measured. Simulation and experimental results show that the EBG structure can increase the front radiation, decrease the back radiation and improve the gain of array antenna.
Keywords :
antenna radiation patterns; photonic band gap; rectangular waveguides; slot antenna arrays; surface impedance; surface structure; EBG structure; antenna back radiation; antenna front radiation; electromagnetic band-gap structure; high-impedance ground plane; high-impedance surface structure; rectangular waveguide; waveguide slot array antenna; Antenna arrays; Antenna measurements; Electromagnetic measurements; Electromagnetic waveguides; Metamaterials; Periodic structures; Planar waveguides; Rectangular waveguides; Slot antennas; Surface structures; EBG high-impedance surface structure; Front to back ratio; Waveguide slot array antenna;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606715
