A retransmission chipless tag with multiple U-shaped slot resonators is proposed to cut down the cost of traditional tags chips. Multiple side-by-side structures different lengths are printed on microstrip line, and two terminals line connected correspondingly orthogonal ultra-wideband (UWB) transceiver antennas form tag. The resonator has high Q values narrow impedance bandwidth. bandwidth tha...

Abstract. High-temperature stable piezoelectric Ca3TaGa3Si2O14 and La3Ga5SiO14 resonators with keyhole-shaped Pt electrodes are coated metal oxide films such as TiO2−δ SnO2 that overlap the electrodes. The exposed to reducing atmospheres in order increase electrical conductivity of film then act extended resulting effective electrode radius causes an mass sensitivity and, thereby, resonance fre...

We design an ultra-compact active hybrid plasmonic ring resonator for lasing applications at deep sub-wavelength scale. The combined contributions of hybrid plasmonic mode, circular-shaped cross section of nanowire, and ring resonator structure with round-trip whispering-gallery cavity, benefit reduced metallic absorption loss, tight mode confinement, enhanced cavity feedback, achieving high qu...

An L-shaped dual-band multiple-input multiple-output (MIMO) rectangular dielectric resonator antenna (RDRA) for long term evolution (LTE) applications is proposed. The presented antenna can transmit and receive information independently using fundamental TE111 and higher order TE121 modes of the DRA. TE111 degenerate mode covers LTE band 2 (1.85-1.99 GHz), 3 (1.71-1.88 GHz), and 9 (1.7499-1.784...

One-dimensional nanomechanical resonators based on nanowires and nanotubes have emerged as promising candidates for mass sensors. When the resonator is clamped at one end and the atoms or molecules being measured land on the other end (which is free to vibrate), the resonance frequency of the device decreases by an amount that is proportional to the mass of the atoms or molecules. However, atom...

This paper presents a scheme to achieve broadband metamaterial absorber in the terahertz region, which is consisted of an anti-symmetric T-shaped resonator (formed by two mutually perpendicular metallic strips) on top back layer separated insulator dielectric layer. The can have strong electromagnetic interaction with incident beam, resulting four different absorption peaks having adjacent freq...

abstract background: given the fact of irrecoverable consequences of noise in industrial societies and the environment, acoustic filter (silencer) is an instrument which obstacles the transmission of sound waves. a sort of this silencer is helmholtz resonator (branch amplifier) which comes to sound appropriate for low and below 200 hz frequencies in fan and channel noise. the purpose of this ar...