In this paper capacitive fed rectangular patch Microstrip antenna loaded with I-shape slots is developed. The model of Antenna uses the capacitive feed strip which is fed by coaxial probe using equivalent circuit approach. The proposed antenna has the impedance bandwidth of 58% in the frequency range 3.9GHz to 7.14GHz which shows wideband characteristics. Gain is almost constant in the entire b...

This paper presents new form of artificial neural network description (ANN) for the estimation of bandwidth of a coaxial feed rectangular microstrip patch antenna. The results obtained using ANNs are compared with the IE3Dsimulation and found quite satisfactory. The designed antenna operates in the frequency range of 1.90 to 2.27 GHz and 3.052 to 3.570 GHz. The antenna is designed using air as ...

A broadband left-handed parallel-line microstrip coupler is implemented by both electromagnetic simulation and actual fabrication. The circuit dimensions are smaller and more compact than those in previous studies and a thinner Duroid substrate of thickness h 0.635 mm is used. Parametric studies were performed using IE3D, and fabrication was done via a Quick Circuit 7000 prototyping machine. Th...

Abstract: A new nondegenerate dual-mode microstrip patch filter structure is introduced. The proposed filter is based on a square microstrip patch with four slots etched in symmetrical form. Besides its simple structure, the filter has the advantages of small size and low loss. The full-wave IE3D package is used to analyse the proposed structure. Design curves that relate the mode resonance fre...

A simple, compact, slot loaded stacked wideband microstrip patch antenna is presented in this communication. The radiating element consists of a rectangular patch with a Tshaped slot and is fed by a 50 Ω microstrip line. The proposed antenna is simulated using IE3D software, 12.32 version of Zeland. The simulated results show that the antenna can exhibit wideband characteristics. The impedance ...

In this paper, an T shaped dualband microstrip antenna fed by coaxial feed is presented for wearable applications in the ISM band (2.42.5GHz,5.7-5.8GHz).This antenna provides dual band performance. As for the wearable applications, we use a felt as the substrate to make sure the antenna can bend follow human body. The overall size of the proposed antenna is 44mm*36mm*3mm. Different parameters l...

A single feed compact microstrip antenna is proposed in this paper. L slit is introduced on the right edge of the patch to study the effect of the slit on radiation behavior with respect to a conventional microstrip patch. The resonant frequencies are obtained at 1.85, 2.4, 3.44 &4.31 GHz with corresponding bandwidth 10 MHz, 15.13 MHz, 35.19 MHz, 56.13 MHz and return loss of about -29.58, -14.5...

The proposed antenna design is a modified Eshape patch antenna truncated at the edges, yielding circular polarization. The antenna operates at multiple frequencies: 2.82 GHz, 3.9 GHz, 4.75 GHz and 6.2 GHz suitable for WLAN and WiMAX applications. The antenna is constructed using a single layer glass epoxy substrate, having dielectric constant εr = 4.3 and loss tangent tan δ =0.001. A co-axial f...

In this article, an analysis of dual band proximity couple stacked microstrip patch antenna has been proposed. The theoretical investigations of antenna parameters such as return loss, gain and radiation pattern are calculated. It is found that antenna resonate at two distinct modes at lower and upper resonance frequencies, i.e. TM01 and TM02. The bandwidths of the proposed antenna are compared...

An internal compact printed loop antenna with matching element is presented for laptop applications. Bending to the printed loop structure is employed to reduce the size of antenna. A matching element is used at backside of the substrate to enhance the bandwidth of the antenna. The matching element is of rectangular shape with inverted U shape slot in it. The proposed antenna with wideband char...