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In this paper, a coplanar waveguide (CPW) fed wide bandwidth T-shaped slot antenna with dual band-notched characteristics is proposed for Ultra-wideband (UWB) applications. The dual band-notches in WIMAX(3.3–3.7GHz) and WLAN(5.15–5.825GHz) applications have been realized by etching an inverted U-slot resonator inside open circuited feeding stub as well as symmetrically placed a pair of straight slit...
The intent this paper is to introduce a modified design of triangular patch printed slot antenna used for ultra wide band (UWB) applications ranging for 3.1 to 10.6 Ghz. Antenna element was feed by coplanar waveguide (CPW) for the suitable interfacing with monolithic microwave integrated circuits. Here it has been presented by simulation results that the antenna can cover wide bandwidth with suitable...
Two CPW fed band-notched antenna are presented. In the first antenna by using four CSRRs(Complementary Split Ring Resonators) and a MLs(Meander Lines) on the patch and the feed line, band notched features are obtained in 5.4 GHz–6.5 GHz for WLAN, 7.2 GHz–8 GHz for partial C-band and 8.5 GHz–10.4 GHz for X-band. The presented antenna consists of a square patch which has four CSRRs in four different...
A coplanar waveguide (CPW) — fed compact cupcake shaped printed antenna is proposed for UWB applications. Cupcake structure is formed by capping an ellipse (eccentricity = 0.95) over a semicircle (radius = 12mm). The bandwidth is enhanced by loading an ellipse over the semicircular patch and using CPW ground plane. The antenna parameters are simulated and optimized using Ansoft HFSS electromagnetic...
This paper proposed a new design of stacked ring rectangular microstrip antenna fed by coplanar waveguide to increase the bandwidth. The results shown that at frequency 2100 MHz the return loss value is −13.23 dB with VSWR 1,553; at frequency 2300 MHz return loss values −15.36 dB with VSWR 1,412 and at frequency 2400 MHz return loss values −29.93 dB with VSWR 1.224. The bandwidth of the proposed antenna...
In this paper a modified compact CPW fed printed monopole antenna is presented. Modified double circular shaped monopole antennas with different type of feedings are proposed to achieve directional radiation characteristics and high front to back lobe ratio (F/B) for various applications. The proposed antenna covers the ultra-wideband (3.3 GHz–10.6 GHz) and a part of the license free super wideband...
For the exchange of high rate information, wide band antennas are needed and their usage increased tremendously now a days. One of the major challenges in the design of Wideband antenna is the design of a small size antenna while providing wide bandwidth, omni-directional radiation pattern and stable gain. The proposed antenna consists of a monopole patch loaded with truncated L-shaped strip. The...
This paper presents a compact-size co-planar waveguide (CPW) -fed antenna for ultrawideband (UWB) applications. The feeding structure of the proposed antenna is a fork-shaped type, and the ground plane is an open-loop type made of two L-shaped extended ground plane stubs. The size of this proposed antenna is only 26 × 20 × 0.8 mm3. The simulated 10-dB return loss bandwidth is 0.17 GHz (3.1-17.0 GHz),...
In this article, a novel design of coplanar wave-guide (CPW) fed printed antenna suitable for ultra-wideband applications is reported. The proposed antenna geometry is derived from rectangular resonator in a closed slot. Two circular portions were removed from lower corners of resonating stub to enhance the bandwidth. The antenna is designed with 1.6mm thick FR4 substrate with relative dielectric...
A CPW antenna is designed at resonant frequency 2.3 GHz on low cost FR4 substrate by using simulation software. The simple rectangular slot loop antenna fed by coplanar waveguide is referred as a prototype antenna to show the designed technique for bandwidth enhancement. To enhance the first band, the rectangular slot is extended from the top of slot loop into the inner conductor, and to achieve more...
In this paper, fast design optimization of an ultra-wideband antenna is presented. Our design approach exploits variable-fidelity electromagnetic (EM) simulations and response correction techniques to simultaneously adjust all geometry parameters of the antenna structure at a low computational cost. As a design case, a coplanar waveguide-fed UWB monopole antenna is optimized for 3.1 GHz to 18.5 GHz...
A simple and ultra wide-band patch antenna with semicircular slot and coplanar waveguide is presented in this study. Proposed antenna consist of a three forth circular patch tapered from a micro strip. This antenna is etched on a FR-4 substrate with an overall size of 31mm x 32mm x 1.6mm. Simulated results of proposed antenna are showing that it is a good candidate of UWB antenna. The proposed antenna...
This paper presents a CPW feed Ultra Wideband (UWB) printed circular monopole antenna, with a curved shaped extended asymmetric CPW ground plane for stable-unidirectional radiation pattern. Initially, the ground plane of a CPW feed planar monopole is elliptically tapered to enhanced its UWB bandwidth. This elliptically tapered ground plane is further modified in to a curve shape similar to circular...
A CPW-fed U-Shaped antenna with defected ground plane for WiMAX and UWB applications is presented in this paper. The antenna consists of a U-shaped patch, defected ground plane and a coplanar waveguide (CPW) feed line. The proposed antenna is designed on FR4 epoxy substrate. The antenna has a dimension of 24.5× 16× 1.6 mm3 with a loss tangent of 0.002 and dielectric constant 4.4 and it is optimized...
This paper presents the design of Koch based circular dual band UWB antenna. The actual dual band is obtained by modifying the antenna ground plane. The two bands are (0.95GHz–2.5GHz) and (3.1–20GHz) respectively, the first band covers various mobile communication services such as DCS, IMT-2000, UMTS, WLAN, GPS, 3G, 4G, LTE and the second one finds its application in UWB and satellite TV in Ku band...
In this paper, we propose a new Ultra Wide-Band (UWB) antenna with ground-slot. This antenna is designed to have a band notch that separate between the Worldwide Interoperability for Microwave Access (WiMAX) applications based on the IEEE 802.16 standards for the frequency band 3.3–3.8 GHz and the X-band uplink and downlink frequencies 7.25–7.75 GHz and 7.9–8.4 GHz respectively, beside this frequency...
A novel design for ultra wideband microstrip antenna using T-shape stub fed by coplanar waveguide is proposed and experimentally studied. The multiband frequencies can be reached by controlling the length of a and b of the T shaped stub. The results shown that the proposed antenna can be achieved multiband frequencies with return loss −21.5 dB at frequency 2.65GHz, return loss −24.5dB at frequency...
A Compact coplanar waveguide (CPW) fed ultrawideband (UWB) antenna is presented. The antenna consists of a corrugated half circular disc radiator and a notched CPW ground plane which are used to improve the impedance bandwidth and also to reduce the overall size to only 0.22 × 0.22 λ2 at 3GHz. The calculated impedance bandwidth of the proposed antenna ranges from 3.5GHz to 11GHz for a reflection coefficient...
A compact coplanar waveguide (CPW)-fed Ultra-wideband antenna is presented. The proposed antenna embody wide-slot with a fork feed with a modified CPW ground. By modifying the ground plane, lower cut-off frequency of the bandwidth is decreased and thus bandwidth of the antenna is increased. By decreasing the lower cut-off frequency, and keeping antenna size same, antenna becomes also more suitable...
In this paper, a coplanar waveguide (CPW) fed arbitrary shaped antenna is proposed for ultrawide band (UWB) application which has large band-width, covering the frequency band from 2 to 12 GHz. The antenna is consisting of a slotted patch, coplanar waveguide with two asymmetrical ground planes, and embedded inverted U-shaped slot on the radiating patch. The embedded inverted U-shaped slot on the patch...
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