w w w . i j e c t . o r g 106 InternatIonal Journal of electronIcs & communIcatIon technology Abstract This paper presents a novel technique for miniaturization of equilateral triangular Microstrip patch antenna by reducing its resonant frequency. Parallel slotting technique is applied in both radiating patch and ground plane to achieve the size reduction of about 84%. Ansoft Designer V2 is emp...

This paper describes the analysis and design of a class of square spiral microstrip antennas for broad frequency band and multi-frequency operations by adding suitable tuning elements in a single structure. The simulation and modeling of these configurations have been done using Ansoft HFSS software. The resonant frequencies and dimensions are computed from the cavity model of square patch. The...

The governing equations of three dimensional elasticity problems include the six Beltrami-Michell stress compatibility equations, the three differential equations of equilibrium, and the six material constitutive relations; and these are usually solved subject to the boundary conditions. The system of fifteen differential equations is usually difficult to solve, and simplified methods are usual...

Abstract: In this paper a new design of Microstrip antenna has been proposed. An Eshaped Microstrip Antenna has been designed and designed structure is simulated using Ansoft HFSS 11.1 software. Low volume and low profile configuration, easily mounted, light weight, low fabrication costs are the advantages of this antenna. Designed antenna can be operated in dual frequencies such as 5.1GHz and ...

The best way of gain enhancement can be obtained is from the array models, but there are some problems associated with array antennas. Mutual coupling losses, element spacing and design complexity are major concerns in the array antennas. The present paper deals with the performance characterization among the 2X2, 3X3, 4X4 array antennas. Rectangular patch array models are constructed and simul...

Recently, millimeter wave applications are rapidly growing in modern high-speed and broadband wireless systems such as uncompressed HD-TV transmission, home link and radar for the collision prevention. In this paper, a NRD guide [1] fed dielectric lens antenna with high gain and low sidelobe characteristics is proposed for millimeter wave applications. The proposed antenna is designed on the ba...

to evaluate the effect of replacing the almond meal on viscoelastic properties of rice cake, stress relaxation test was carried out. stress relaxation test were conducted using a texture analyzer machine. constants of the peleg - normand and the extended maxwell model for variables were calculated. the results showed that with increasing strain rate increased amount of k1, k2 and decay forces, ...

This study evaluated the performance of the Maxwell 16 System (Promega) for extraction of influenza virus (flu-v) RNA from diverse samples compared to a classical manual method (QIAamp Kit, QIAGEN). Following extraction by the two methods, all samples were analyzed by Real-time RT-PCR. Results revealed that the use of the standard Maxwell 16 protocol (Maxwell 16-S) resulted in good linearity an...

In this paper Microstrip antenna using semicircular patch is proposed and ANTENNA DESIGN simulated using HFSS software strip feed is used. microstrip antenna design is to increase the bandwidth and gain (1-14). performance analyses using high frequency structure simulator (HFSS) software. I'm starting with the calculation of design parameter using MATLAB. to get better. patch antenna was analyz...

In this paper we propose and investigate some edge element approximations for three Maxwell systems in three dimensions: the stationary Maxwell equations, the time-harmonic Maxwell equations and the time-dependent Maxwell equations. These approximations have three novel features. First, the resulting discrete edge element systems can be solved by some existing preconditioned solvers with optima...