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

Volume

1

fYear

2008

fDate

21-24 April 2008

Firstpage

398

Lastpage

399

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICMMT.2008.4540399

Filename

4540399