CST – Computer Simulation Technology

Multilayered Composite Right/Left-Handed Leaky-Wave Antenna With Consistent Gain
Nasimuddin, Zhi Ning Chen, Xianming Qing
IEEE Transactions on Antennas and Propagation
Volume: 60, Issue: 11, November 2012
5056 - 5062
Beam scanning, gain, leaky-wave antenna, metamaterials, substrate integrated waveguide
A multilayered composite right/left-handed (CRLH) based leaky-wave antenna is proposed for the continuous beam scanning from backward to forward direction with consistent gain. The antenna comprises a substrate integrated waveguide (SIW) with an array of theCRLH unit cells. TheCRLH unit cell is formed by a slot cut on the upper ground of the SIW, and a parasitic patch beneath the slot. The antenna achieves continuous beam scanning against frequency and the optimal boresight gain at the balanced condition frequency. The antenna prototype with 15 unit cells exhibits the measured beam scanning angle of to 78 over the frequency range from 8.0 to 13.0 GHz with a consistent gain of more than 9.0 dBi.

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