A Three-Band Substrate Integrated Waveguide Leaky-Wave Antenna Based on Composite Right/Left-Handed Structure

作者：Haghighi Seyed Sasan^*; Heidari Abbas Ali; Movahhedi Masoud

来源：IEEE Transactions on Antennas and Propagation, 2015, 63(10): 4578-4582.

DOI：10.1109/TAP.2015.2456951

• Composite right/left-handed transmission line (CRLH/TL)
• leaky-wave antenna (LWA)
• substrate integrated waveguide (SIW)
• three-band

In this communication, the design and implementation of a three-band substrate integrated waveguide (SIW) leaky-wave antenna (LWA) based on the composite right/left-handed (CRI,H) structure is presented. CRLH unit cell of the proposed antenna is composed of two adjacent interdigital slots with two vias between them. Two CRLII bands along with a new right-handed (RH) hand between them are achieved through this structure. The first CRLH band (7.1-10.75 GHz) is balanced and the second one (15.1-21.75 GlIz) is unbalanced with 0.25-GIIz stop hand. Beam scan angle in the first CRI,H hand is from 78 degrees to +78 degrees, in the second one from 40 degrees to +20 degrees and in the new Rh band (12.6 13.4 GlIz) from +22 degrees to +54 degrees. Antenna radiation efficiency in the first CRLH band is about 90%. Simulated and measured results are compared and there is a good agreement between them.

• 出版日期2015-10