A novel short leaky-wave antenna for suppressing the back lobes

Author

Chiou, Yi-Lin ; Wu, Jin-Wei ; Huang, Jie-Huang ; Jou, Christina F.

Author_Institution

Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu

fYear

2009

fDate

2-4 March 2009

Firstpage

1

Lastpage

4

Abstract

A method to suppress the back lobes of a short leaky-wave antenna by two designed considerations is present in this paper. The right triangular end of the LWA is used to reduce the power reflected backwardly and the linked rectangular is guided the remainder power to the ground. With a short LWA length, the back lobes are suppressed successfully both in simulated and measured results at 4.6 and 4.7 GHz. The differences of the gains between the back lobes and main beams are 13.1 dBi and 7.2 dBi at 4.6 and 4.7 GHz, relatively in the measurements. In contrast to the conventional LWA, the proposed short LWA would rather be useful in scanning systems.

Keywords

leaky wave antennas; microstrip antennas; scanning antennas; back lobe suppression; frequency 4.6 GHz; frequency 4.7 GHz; microstrip antenna; scanning system; short leaky-wave antenna; Antenna measurements; Antennas and propagation; Bandwidth; Brain modeling; Frequency; Gain measurement; Leaky wave antennas; Length measurement; Microstrip antennas; Power engineering and energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology, 2009. iWAT 2009. IEEE International Workshop on

Conference_Location

Santa Monica, CA

Print_ISBN

978-1-4244-4395-6

Electronic_ISBN

978-1-4244-4396-3

Type

conf

DOI

10.1109/IWAT.2009.4906868

Filename

4906868