Title :
Omnidirectional higher mode microstrip antenna for GPS
Author :
Xuebin, Yang ; Shannwei, Lue ; Cheng, L.L.
Author_Institution :
Dept. of Electron. Eng., Beijing Univ. of Aeronaut. & Astronaut., China
Abstract :
A kind of annual ring microstrip antenna operating at higher mode, the pattern of which covers the lower elevation angle area is described. The pattern in the azimuthal plane is directional with some ripple. A qualitative method is employed to analyse why the ripple emerges. A simply way is adopted to reduce the ripple
Keywords :
Global Positioning System; antenna radiation patterns; antenna theory; microstrip antennas; GPS; annual ring microstrip antenna; directional pattern; higher mode microstrip antenna; omnidirectional microstrip antenna; ripple reduction; Antenna arrays; Azimuthal plane; Global Positioning System; Microstrip antenna arrays; Microstrip antennas; Mobile antennas; Mobile communication; Patch antennas; Polarization;
Conference_Titel :
Microwave Conference Proceedings, 1997. APMC '97, 1997 Asia-Pacific
Print_ISBN :
962-442-117-X
DOI :
10.1109/APMC.1997.659421
