Electronics

A fast-corrected all-digital DCC with synchronous input clock
This paper presents a fast-corrected all-digital duty-cycle corrector (DCC) with synchronous input clock. The proposed DCC has many features, including fast locking in 4 cycles, wide range correction, and synchronous 50% duty-cycle clock with an input clock. The circuit can operate from 500 to 900 MHz and corrects a wide range of input duty cycle ranging from 25 to 75%. The duty-cycle error...


Second order mem-circuits
This paper presents a comprehensive taxonomy of so-called second-order memory devices, which include charge-controlled memcapacitors and flux-controlled meminductors, among other novel circuit elements. These devices, which are classified according to their differential and state orders, are necessary to get a complete extension of the family of classical nonlinear circuit elements (resistors, ...
Spur reduction in frequency synthesizer with an array of switched capacitors
This paper proposes a new spur reducing architecture of phase-locked loop-based frequency synthesizer. With an array of switched capacitors and a delay locked loop, the charge coming from its charge pump is evenly transferred to its loop filter at a fixed number of equi-spaced time intervals. It results in the reduction of fundamental and higher-order harmonics of the reference spur. The propos...


Theory on resistance of m × n cobweb network and its application
A basic theorem of equivalent resistance between two arbitrary nodes in an m × n cobweb network in both finite and infinite conditions is discovered, and two conjectures on the equivalent resistance are proved in terms of the basic theorem. We built a tridiagonal matrix equation by means of network analysis and made a diagonalization method of matrix transformation and work out its explici...
Investigations and Simulations of All optical Switches in linear state Based on Photonic Crystal Directional Coupler
Switching is a principle process in digital computers and signal processing systems. The growth of optical signal processing systems, draws particular attention to design of ultra-fast optical switches. In this paper, All Optical Switches in linear state Based On photonic crystal Directional coupler is analyzed and simulated. Among different methods, the finite difference time domain method (FD...


HOT mid-wave HgCdTe nBn and pBp infrared detectors
Narrow band gap photon infrared detectors require cryogenic cooling to suppress the noise deteriorating the performance. Among the competitive materials and theoretical predictions favouring type-II superlattices InAs/GaSb, HgCdTe has been still considered as the leader in terms of the fundamental physical parameters. The size, weight, power consumption and multispectral response of the infrare...
On thermodynamic consistency of a Scharfetter–Gummel scheme based on a modified thermal voltage for drift-diffusion equations with diffusion enhancement
Driven by applications like organic semiconductors there is an increased interest in numerical simulations based on drift-diffusion models with arbitrary statistical distribution functions. This requires numerical schemes that preserve qualitative properties of the solutions, such as positivity of densities, dissipativity and consistency with thermodynamic equilibrium. An extension of the Schar...

A Survey Paper On MIMO Antenna Systems Using Adaptive Modulation And Adaptive Beam Forming
Adaptive modulation and adaptive beam forming methods are the hottest research areas. Many of the researchers worked on these two techniques to apply on MIMO antenna systems. The general problems exist in these methods are uncertainty in steering vector, angle of arrival problem, if the required signal is available slow convergence problem exist, channel interference, and etc. In this paper we ...
An Area-Optimized Chip of Ant Colony Algorithm Design in Hardware Platform Using the Address-Based Method
The ant colony algorithm is a nature-inspired algorithm highly used for solving many complex problems and finding optimal solutions; however, the algorithm has a major flaw and that is the vast amount of calculations and if the proper correction algorithm and architectural design are not provided, it will lead to the increasing use of hardware platform due to the high volume of operations; and ...

Identifying Appliances using NIALM with Minimum Features
Government of India has decided to install smart meters in fourteen states. Smart meters are required to identify home appliances to fulfill various tasks in the smart grid environment. Both intrusive and non-intrusive methods have been suggested for identification.  However, intrusive method is not suitable for cost and privacy reasons. On the other hand, techniques using non-intrusive applia...
Effects of anode microstructures on durability of microtubular solid oxide fuel cells during internal steam reforming of methane
When hydrocarbons are used as a fuel in solid oxide fuel cells (SOFCs), internal steam reforming increases the energy conversion efficiency and simplifies the system, including the balance-of-plant. However, conventional nickel–yttria stabilized zirconia (Ni–YSZ) anodes are prone to deterioration at high temperatures and high humidity. This paper focuses on effects in anode microstructure o...

Kernel canonical correlation analysis for robust cooperative spectrum sensing in cognitive radio networks
Spectrum sensing is a key operation in cognitive radio (CR) systems, where secondary users (SUs) are able to exploit spectrum opportunities by first detecting the presence of primary users. In a CR network composed of several SUs, the detection accuracy can be much improved by cooperative spectrum sensing strategies, which exploit the spatial diversity among SUs. However, cooperative detection ...
The max–min fair approach on dynamic bandwidth allocation for XG-PONs
XG-PON is the latest ITU-T PON standard for passive optical networks (PONs), which provide broadband access to the end user at line rates of up to 10 Gb/s. The most important issue that is not strictly defined in the standard and is left to vendors to implement is the allocation of the shared upstream bandwidth. An efficient allocation mechanism must be applied on the upstream direction in orde...
Bistatic Scattering due to Hydrometeors on Cochannel Intersystem Communication Links over a Subtropical Path
The performance of fixed satellite systems in the shared frequency band depends on the tolerance level of interference between them. Interference disturbs the functionality of the ground station and causes signal degradation. The knowledge of interference level must therefore be known for an optimal satellite design. In this work, we evaluate interference due to hydrometeors for a situation in ...
Enhanced high-voltage properties of LiCoO2 coated with Li[Li0.2Mn0.6Ni0.2]O2
In order to overcome the capacity fading of LiCoO2 cathode material cycled in the voltage of 3.0–4.5V (vs. Li/Li+), electrochemically active Li[Li0.2Mn0.6Ni0.2]O2 was coated onto the surface of LiCoO2 by sol-gel method. The detrimental surface effects arising from the high Co-content are countered by the Li[Li0.2Mn0.6Ni0.2]O2 coating. The surface morphology and structure of bare and coated Li...