Title :
Analysis of Wide Slot Antenna Electromagnetically Coupled to a Circular Microstrip Patch for Radar Applications by using TLM method
Author :
Sadeghzadeh, R.A. ; Moghaddasi, M.N. ; Bahadorzadeh, M.
Author_Institution :
Islamic Azad Univ., Tehran
Abstract :
A wide rectangular slot antenna electromagnetically fed by a microstrip circular patch for achieving wide bandwidth in radar applications is proposed to operate at 3 GHz. Transmission line matrix method, TLM-SCN, is used to obtain numerical results on the return loss, input impedance and radiation pattern of such antenna structure. Effects of various diameters of the circular feeding patch and patch position relative to the centre of the slot are considered. For VSWR of 1:2 some 52% bandwidth at 3 GHz is easily achievable.
Keywords :
antenna feeds; antenna radiation patterns; electromagnetic coupling; microstrip antennas; radar antennas; slot antennas; transmission line matrix methods; TLM method; antenna radiation pattern; circular feeding patch; circular microstrip patch antenna; electromagnetic coupling; frequency 3 GHz; radar applications; transmission line matrix method; wide rectangular slot antenna; Bandwidth; Electromagnetic analysis; Electromagnetic coupling; Impedance; Microstrip antennas; Propagation losses; Radar antennas; Radar applications; Slot antennas; Transmission line matrix methods; Microstrip patch; Slot antenna; Transmission Line Method;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on
Conference_Location :
Builin
Print_ISBN :
1-4244-1049-5
Electronic_ISBN :
1-4244-1049-5
DOI :
10.1109/ICMMT.2007.381353
