Title :
K-Band Frequency-Scanned Leaky-Wave Antenna Based on Composite Right/Left-Handed Transmission Lines
Author :
Wan Jiang ; Changjun Liu ; Biao Zhang ; Menzel, Wolfgang
Author_Institution :
Sch. of Electron. & Inf. Eng., Sichuan Univ., Chengdu, China
Abstract :
A frequency-scanned leaky-wave antenna at K-band is proposed, which is based on two composite right/left-handed (CRLH) transmission lines with a virtual ground in between and composed of two identical RT 5880 substrates. The main beam of the proposed leaky-wave antenna scans from -25° to +50°, i.e., from backfire to endfire, as the frequency varies from 20 to 30 GHz. The highest antenna gain reaches 14 dB at a backfire direction. The proposed antenna has no vias. Its dimensions are 155 × 34 mm 2.
Keywords :
composite materials; leaky wave antennas; metamaterials; transmission lines; CRLH transmission lines; K-band frequency-scanned leaky-wave antenna; composite right/left-handed transmission lines; Impedance matching; Leaky wave antennas; Metamaterials; Microstrip; Microwave antennas; Power transmission lines; Composite right/left-handed (CRLH); K-band; leaky-wave antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2280969
