Title :
Frequency-Scanned Leaky-Wave Antenna from Negative Refractive Index Transmission Lines
Author :
Liu, Cong ; Menzel, Wolfgang
Author_Institution :
Sichuan Univ., Chengdu
Abstract :
A microstrip frequency-scanned leaky-wave metamaterial-based antenna is presented in this paper. It is built from two negative refraction index transmission lines fed with opposite phase using an integrated balun. The microstrip leaky-wave antenna is a two-layer structure without any vias. The antenna works well at C band from approximately 3.5 GHz to 5.5 GHz, in which the main beam scans from -40deg (backfire) to 40deg (endfire). As it does not include any interdigital capacitors or vias, it can be easily extended to millimeter-wave frequency bands.
Keywords :
leaky wave antennas; microstrip antennas; microwave antennas; refractive index; transmission lines; frequency 3.5 GHz to 5.5 GHz; integrated balun; microstrip frequency-scanned leaky-wave metamaterial-based antenna; negative refractive index transmission lines; temperature -40 C to 40 C; Metamaterial; composite right/left handed transmission line (CRLH TL); leaky-wave antenna; microwave antenna;
Conference_Titel :
Antennas and Propagation, 2007. EuCAP 2007. The Second European Conference on
Conference_Location :
Edinburgh
Print_ISBN :
978-0-86341-842-6
