Title :
Design of a waveguide-fed omnidirectional slotted array antenna at 38 GHz millimeter wave frequency
Author :
Chaharmahali, Mohsen ; Noori, Narges
Author_Institution :
Dept. of Electr. Eng., Islamic Azad Univ. of Shahr Rey, Shahr Rey, Iran
Abstract :
In this paper, the design of a linear array of slots is presented at 38 GHz. The array is fabricated with a total number of 24 slots, 12 on each broad side wall of a WR22 rectangular waveguide, to form an omnidirectional azimuth radiation pattern. The offsets of the individual slots are calculated for two cases: when all slots are uniformly excited and when Dolph-Chebyshev synthesis method is used to achieve a radiation pattern with low sidelobe level in elevation plane. The measured results are also compared with those simulated by CST STUDIO SUITE.
Keywords :
antenna feeds; antenna radiation patterns; linear antenna arrays; millimetre wave antenna arrays; omnidirectional antennas; rectangular waveguides; slot antenna arrays; Dolph-Chebyshev synthesis method; WR22 rectangular waveguide; elevation plane; frequency 38 GHz; linear antenna array design; low sidelobe level; millimeter wave frequency; omnidirectional azimuth radiation pattern; waveguide-fed omnidirectional slotted array antenna design; Antenna measurements; Antenna radiation patterns; Arrays; Azimuth; Millimeter wave communication; Millimeter wave radar; Millimeter wave; linear array; slotted antenna;
Conference_Titel :
Telecommunications (IST), 2014 7th International Symposium on
Conference_Location :
Tehran
Print_ISBN :
978-1-4799-5358-5
DOI :
10.1109/ISTEL.2014.7000709