Abstract—A new design technique of microstrip patch antenna is presented in this paper. The proposed antenna design consists of inverted patch structure with air-filled dielectric, direct coaxial probe feed technique and the novel slotted shaped patch. The composite effect of integrating these techniques and by introducing the new multislotted patch, offer a low profile, high gain, broadband, a...

A small printed monopole antenna for ultra wide band applications is proposed. The shape of the radiating patch considered is rectangular. The effect of the current distribution has been studied. The patch configuration is then modified to improve the impedance bandwidth. The dimensions of the patch and the distance between ground plane and radiating patch are optimized using the Genetic Algori...

here we report a novel approach for preparation of a 6-day transdermal drug delivery system (tdds) as treatment for mild to moderate alzheimer’s disease. the spray drying method was used to prepare microparticles containing the anti-alzheimer drug. the content of the drug was determined by high performance liquid chromatography (hplc) method. the morphology and size range of the microparticles ...

In this paper, a new design technique for enhancing bandwidth that improves the performance of a conventional microstrip patch antenna is proposed. This paper presents a novel wideband probe fed inverted slotted microstrip patch antenna. The design adopts contemporary techniques; coaxial probe feeding, inverted patch structure and slotted patch. The composite effect of integrating these techniq...

In this paper, a novel multiple slot microstrip patch antenna with enhanced bandwidth is presented. The design adopts contemporary techniques namely; probe feeding, inverted patch structure and multiple slotted patch. The composite effect of integrating these techniques and by introducing the novel multiple shaped patch, offer a low profile, wide bandwidth, high gain and compact antenna element...

This paper presents the effective harmonics rejection of dual band rectangular microstrip patch antenna. The dual frequency circular polarization achieved with proper pin shorting at the corner of RMPA. Pin shorting at the corner also process harmonic effect. Using effective corner truncation technique of the rectangular patch, undesired harmonics effect can be rejected completely. The simulati...

In this paper, we propose a full-reference (FR) image quality assessment (IQA) scheme, which evaluates image fidelity from two aspects: the inter-patch similarity and the intra-patch similarity. The scheme is performed in a patch-wise fashion so that a quality map can be obtained. On one hand, we investigate the disparity between one image patch and its adjacent ones. This disparity is visually...

We study the long-time behaviour of the solutions of the Porous Medium Equation ut = ∆u, m > 1, posed in a tube Ω = R × D, with D a bounded domain in R, and with homogeneous Dirichlet conditions on the lateral boundary. We show that the asymptotic behaviour of general nonnegative solutions follows the KPP pattern in suitable rescaled variables. We proceed as follows: we pass to the renormalized...

Significant progress has been made towards understanding the social behaviour of animal groups, but the patch model, a foundation of foraging theory, has received little attention in a social context. The effect of competition on the optimal time to leave a foraging patch was considered as early as the original formulation of the marginal value theorem, but surprisingly, the role of facilitatio...