In this paper, a novel CPW-fed antenna is presented for UWB applications. The antenna mainly comprises of a simple circular patch and a modified ground plane. The inclusion of two novel symmetrical rectangular slots with inner area of 3×2.8 mm2 to the top corners of the antenna creates a new path for the current and consequently leads to the bandwidth enhancement. A rectangular stub is also ado...

In this study, a radiation pattern reconfigurable microstrip antenna is designed and fabricated. The antenna’s radiation pattern is directed in 9 different angles by employing a radiating patch and embedding complementary split ring resonators (CSRR) on the ground plane. The radiating patch is of circular shape, while for CSRR elements both circular and rectangular shapes are investigated. The ...

Today, we see that despite the plans and decisions made about the historical fabric, the people are very faintly seen and conservation the historic fabric of urban is one of the main concerns management urban In the absence of efficient management and lack of attention to the needs of local people, the historical Fabric Urban is destroyed. In this article are examined Ways other than physical m...

A reconfigurable structure of antenna improves electromagnetic (EM) performance and its capability compared with other designs. The design satisfies both EM mechanical needs simultaneously. This paper studies the stability analysis a foldable helical Kresling origami pattern, which is subjected to tip follower force. simulated using geometrically-exact, fully intrinsic nonlinear composite beam ...

In the area of wearable technology an enhancement basic microstrip antenna is evolution textile antenna. A major requirement for its flexible designed materials which incoprates fabric in structure. The parameters obtained from are return loss (S-11), directivity, gain, voltage standing wave ratio (VSWR) as well specific absorption rate (SAR) value. All these mostly influenced by value substrat...

Multiple Input, Multiple Output (MIMO) technology offers the potential for a significant increase in capacity and performance within a given bandwidth and power budget. However, these benefits must be weighed against the cost of the multiple RF front ends and additional processing necessary in supporting MIMO systems. The creation of a cost effective MIMO system can be facilitated through the u...

In this paper, the design and implementation of plasma antenna array with beam forming is discussed. The structure consists of a circular array of plasma tube enclosed in a unipolar UHF band monopole antenna. Beam forming is possible by stimulated plasma tubes. The combination of the above antenna with plasma excitation controller makes a beam forming smart antenna. An experimental model in UHF...

We have examined the fabric-to-metal surface and fabric-to-fabric frictional characteristics (in both warp and weft directions) of a series of fabrics containing 100% polyester, 100% viscose, and P/C & P/V blends with different blend proportions. It has been observed that the normal load and the frictional force follow a logarithmic relationship for all the fabrics. The nature of fabric frictio...