Title :
A reflector antenna log-periodic feed for 1-10 GHz frequency range
Author :
Ovahhedi, Masoud M. ; Tavakoli, Ahad ; Moini, Rozbeh
Author_Institution :
Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran, Iran
Abstract :
The application of unidirectional log-periodic antenna as feeds for reflectors to cover 10:1 bandwidth is described. The trapezoidal-tooth sheet structures are analyzed using moment method and information on the primary patterns, input impedance, and active region of them is given so as to allow the design of feeds for a variety of reflectors. A tapered microstrip transmission line can be used to provide matching to the antenna. Measurements and experimental results are presented for validation of analysis.
Keywords :
UHF antennas; antenna radiation patterns; log periodic antennas; method of moments; microstrip antennas; reflector antenna feeds; transmission lines; 1 to 10 GHz; MOM; antenna radiation patterns; moment method; reflector antenna; tapered microstrip transmission line; trapezoidal-tooth sheet structures; unidirectional log-periodic antenna; Antenna feeds; Bandwidth; Frequency; Impedance; Information analysis; Log periodic antennas; Microstrip antennas; Moment methods; Pattern analysis; Reflector antennas;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2004. MIKON-2004. 15th International Conference on
Print_ISBN :
83-906662-7-8
DOI :
10.1109/MIKON.2004.1357072
