Drawing inspiration from bilayer graphene, this paper introduces its photonic analog comprising two stacked graphenelike crystals that are coupled in the near field through spoof surface plasmons. Beyond twist degree of freedom can radically alter band structure dispersion be also tailored via interlayer coupling which exhibits an exponential dependence on distance between crystals. We theoreti...

This paper presents the design of an A/D converter. The objective of this research is to determine whether a discrete-time approach is the best choice for incorporating the A/D converter into a silicon fully-integrated Hearing-Aid system. In that sense, power consumption, conversion time, and integration area were basic parameters for designing a test chip, which was fabricated and tested. Firs...

A study and comparison between current mode CMOS analog multiplier, CMOS current mode multiplier/divider and high frequency four quadrant current multiplier has been carried out in this paper. Current multiplier has been simulated in SPICE with 0.35μm, 0.5μm. Simulation have been done with supply voltage of 3.3V, 1.5V and 1.55V respectively. The simulated results show that characteristic of mul...

In this paper the attention is drawn on analog computer.For scientists attempting to prepare complex designs for simulation approach the analog computer assisted them. Extensive knowledge about the analog methods is required before preparing any analog design. The credit for the advent of analog computer goes to the invention of operational amplifier. Thus in 1950 the engineers and aircraft res...

Single-formant dynamically changing harmonic vowel analogs, a target with a single frequency excursion and a longer distracter with a different fundamental frequency and repeated excursions were generated to assess informational and energetic masking of target transitions in young and elderly listeners. Results indicate the presence of informational masking that is significant only for formant ...

We describe an optically assisted folding-flash analog-to-digital converter. The periodic transfer function of the Mach-Zehnder interferometer is used to perform analog folding on the electronic signal to be quantized. A novel analog encoding scheme for efficient generation of gray code digital data is proposed. The new encoding scheme eliminates the requirement for interferometers with ultralo...