A Sinusoidally-Modulated Leaky-Wave Antenna With Gapped Graphene Ribbons

作者：Cheng, Yan^*; Wu, Lin-Sheng; Tang, Min; Zhang, Yao-Ping^*; Mao, Jun-Fa

来源：IEEE Antennas and Wireless Propagation Letters, 2017, 16: 3000-3004.

DOI：10.1109/LAWP.2017.2757240

• Graphene
• leaky-wave antenna
• reconfigurability
• terahertz (THz)

This letter proposes a new sinusoidally-modulated graphene leaky-wave antenna for beam scanning at terahertz (THz) with only one biasing voltage required. The antenna consists of a number of dc-gated graphene ribbons on a grounded dielectric substrate. The graphene ribbons are nonuniformly gapped to realize a sinusoidally-modulated reactance surface to support the leaky-wave operation. The analysis shows that the beam angle and leakage rate can be controlled by the gate voltage, indicating a good reconfigurability. The simulated and analytical results agree well with each other that not only validate the design method but also show that the new antenna is promising for graphene-based THz wireless systems.

• 出版日期2017
• 单位上海交通大学