Phased-array sources based on nonlinear metamaterial nanocavities

Phased-array sources based on nonlinear metamaterial nanocavities

Coherent superposition of light from subwavelength sources is an attractive prospect for the manipulation of the direction, shape and polarization of optical beams. This phenomenon constitutes the basis of phased arrays, commonly used at microwave and radio frequencies. Here we propose a new concept for phased-array sources at infrared frequencies based on metamaterial nanocavities coupled to a...

Acoustic Holographic Rendering with Two-dimensional Metamaterial-based Passive Phased Array

Acoustic holographic rendering in complete analogy with optical holography are useful for various applications, ranging from multi-focal lensing, multiplexed sensing and synthesizing three-dimensional complex sound fields. Conventional approaches rely on a large number of active transducers and phase shifting circuits. In this paper we show that by using passive metamaterials as subwavelength p...

Phased array antenna using MEMS phase shifter

This article presents a phased array antenna employing MEMS phase shifter. The proposed phased array antenna consists of eight square patch antennas operating at 10.4 GHz with a bandwidth of 400 MHz. Feed line for each patch passes through a MEMS phase shifter realized by a series of bridges above the transmission line. The distance between the bridge and the transmission line underneath it is ...

Metascreen-Based Acoustic Passive Phased Array

Yong Li, Xue Jiang, Bin Liang, Jian-chun Cheng, and Likun Zhang CNRS, Institut Jean Lamour, Vandœuvre-lès-Nancy F-54500, France Université de Lorraine, Institut Jean Lamour, Boulevard des Aiguillettes, BP: 70239, Vandœuvre-lès-Nancy 54506, France Key Laboratory of Modern Acoustics, MOE, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanji...

Analysis of Metamaterial Based Microstrip Array Antenna