Rajasthan Technical University

About: Rajasthan Technical University is a education organization based out in Kota, Rajasthan, India. It is known for research contribution in the topics: Photovoltaic system & PID controller. The organization has 716 authors who have published 1084 publications receiving 4530 citations. The organization is also known as: RTU.

Routh Approximation: An Approach of Model Order Reduction in SISO and MIMO Systems

Abstract: In this paper the Routh Approximation method is explored for getting the reduced order model of a higher order model. The reduced order modeling of a large system is necessary to ease the analysis of the system. The approach is examined and compared to single-input single-output (SISO) and multi-input multi-output (MIMO) systems. The response comparison is considered in terms of step response parameters and graphical comparisons. It is reported that the reduced order model using proposed Routh Approximation (RA) method is almost similar in behavior to that of with original systems.

Solutions for Secure Routing in Mobile Ad Hoc Network (MANET): A Survey

Abstract: Now a day’s mobility is becoming increasingly important for users of computing systems, science and technology has made it possibly more powerful. In wireless communication mobile computing support like access points is not available in all locations, due to high cost, low expected usage, poor performance. This may happen during outdoor conferences or in emergency situations like natural disasters and military services in inaccessible places. If mobile users want to communicate without a support structure, they must form new class of network called Mobile Ad Hoc Network (MANET). In this paper we briefly discuss about the concept of MANET and various solutions for performing secure routing in MANET.

Reduced order modelling of SMIB Power System using Stability equation method and Firefly Algorithm

Abstract: In this paper, a large order system is reduced by using the firefly algorithm (FFA) to a reduced-order approximation. The numerator coefficients of a desired reduced-order system are optimized based on integral square error minimization as an objective function pertaining to a unit-step as input. The denominator of the reduced order model is solved by stability equation method. The efficacy of the proposed method is tested with single-machine infinite-bus (SMIB) power system to get a corresponding reduced-order model. The results are satisfactory in terms of minimum error with the proposed method as compared to Routh approximation and Stability equation based reduced models.

A Quad Band Metamaterial Miniaturized Antenna for Wireless Applications with Gain Enhancement

Abstract: This paper presents a designing of dual-coated miniaturized metamaterial inspired quad band antenna for wireless standards with gain enhancement. Proposed design has compactness in size with electrical dimension of 0.239 × 0.351 × 0.0127 λ (30 × 44 × 1.6 mm3), at lower frequency of 2.39 GHz. The antenna consist a double printed slotted hexagonal shape radiating section with implementation of metamaterial rectangular split ring resonator. Antenna achieve quad bands for wireless standards WLAN (2.4/5.8 GHz), WiMAX (3.5 GHz), IEEE 802.11P (WAVE-5.9 GHz), ITU assigned X bands (7.25–7.75, 7.9–8.4 GHz) and satellite communication systems operating bands (C-band: 7.4–8.9 GHz and X-band: 8–10 GHz for satellite TV). An acceptable gain, stable radiation characteristics and good impedance matching are observed at all the resonant frequencies of the proposed structure. By application of proposed frequency selective surface an average enhancement of gain is about 4–5 dB over the operating band. Antenna fabricated and tested represent good agreement between the simulated and measured results.