Title :
A new method for back lobe suppression of microstrip leaky-wave antenna
Author :
Liu, Juhua ; Guo, Mingcheng ; Long, Yunliang
Author_Institution :
Dept. of Electron. & Commun. Eng., Sun Yat-Sen Univ., Guangzhou
Abstract :
In this paper, a new method for back lobe suppression of microstrip leaky-wave antenna (MLWA) is proposed. By adding microstrip dipole antennas above the MLWA, the radiation efficiency of MLWA is improved, and the reflected back lobe of MLWA is suppressed. The finite difference time domain (FDTD) method is used to simulate this MLWA. With a length of 2 wave-length of MLWA the back lobe is suppressed to -10.6 dB at 10.5 GHz, which is 8.6 dB lower than conventional MLWA.
Keywords :
dipole antenna arrays; finite difference time-domain analysis; interference suppression; microstrip antenna arrays; back lobe suppression; back lobe, array topology; finite difference time domain method; microstrip dipole antennas; microstrip leakywave antenna; patch antenna arrays; radiation efficiency; Antenna arrays; Brain modeling; Dipole antennas; Finite difference methods; Frequency; Leaky wave antennas; Microstrip antennas; Reflector antennas; Slot antennas; Time domain analysis;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1879-4
Electronic_ISBN :
978-1-4244-1880-0
DOI :
10.1109/ICMMT.2008.4540399
