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Ultra-wide band (UWB) technology considered as a solution in wireless communication to revolutionize high data rate transmissions. A microstrip monopole antenna with modified Y-shape patch is proposed in this paper, which operates at frequency 3.1–10.6 GHz with Reflection coefficient ≤ −10 dB. Proposed antenna has physical dimension of 24 × 25 × 1.6 mm and considered compact for certain wireless communication...
This paper presents a low profile unidirectional UWB cavity backed antenna analyzed using The Theory of Characteristics Modes (TCM). The main goal of this work is to design a low profile UWB antenna with a very stable and unidirectional radiation pattern. The proposed design is based on exciting the fundamental mode of a cavity structure composed of a metallic ring, a circular waveguide and two circular...
This paper presents a compact microstrip-fed slot antenna with flower-shaped stub for ultra-wideband (UWB) applications. The proposed antenna composes of inverted T-shaped slot and inverted U-shaped slot which are etched on the ground plane. Additionally, by using the flower-shaped stub, fractional bandwidth is achieved more than 120%. The flower-shaped stub is crucial role in improving impedance...
In this paper a simple design, compact size, and low cost ultra wide band (UWB) rectangular patch antenna with defective ground plane with WLAN (5.5GHz) band notched characteristics is proposed. The band notch is created by inverted V slot on rectangular patch. The proposed antenna is designed on FR4 substrate of size 18 × 24 × 0.8mm. The antenna achieves an operational bandwidth from 3.3 GHz to more...
A low profile unidirectional UWB antenna for multi-service base stations is presented in this paper. The main goal of this article is to design a low profile UWB antenna with a very stable and unidirectional radiation pattern. The proposed design is based on exciting the fundamental mode of a planar structure composed of two metallic rings, applying the Theory of Characteristics Modes. The feeding...
3×3 Split Ring resonators with inner ring rotation are etched at the back side of Circular microstrip antenna with elliptical rings. Rotation for multiple angles leads to an enhancement in impedance bandwidth. The selected UWB antenna has fabrication dimensions of 45 mm × 31mm × 1.27 mm. The rotation of the inner rings occur clockwise and counter clockwise for −47°, 33° and 10°. The preferable enhanced...
In this paper, a novel approach of an extracted LC model of monopole antenna with T-slot at ground plane for ultra wide band application is proposed. For extraction of LC model, 50Ω matching between dielectric component and semi conducting at ground plane where T-slot is embedded is done. The monopole with T-slot antenna achieves wide band of 2.1GHz to 11GHz while extracted LC model is 2.1GHz to 10...
In this paper, a new compact spectacles shaped patch UWB antenna using a microstrip fed line is proposed. The new design is consist of a spectacles shaped patch along with tapered slot ground plane.The proposed antenna has a compact electrical dimension of 0.24 λ × 0.21 λ × 0.016 λ and fed with a 50-ohm microstrip transmission line. Computer Simulation Technology (CST) based on finite-difference time-domain...
An ultra-wideband (UWB) W-shaped patch antenna with defected ground is presented in this paper. Design, simulation and the analysis of the proposed single layer line feed antenna is done in CST Microwave Studio with 10.3 GHz operating frequency. The simulated results reveal that, the presented W-shaped line fed antenna offers a very wide bandwidth of 507 MHz ranging from 10.146 GHz to 10.653 GHz....
This paper presents novel designs, analyses, and simulations of two miniaturised pyramidal double-ridged horn (PDRH) microwave antennas for medical imaging systems. The PDRH antennas have been optimised to operate within a ceramic material filling with permittivity of 41 (which approximately is the permittivity of the human skin in the intended frequency range), in order to make the compact antennas,...
A compact microstrip line fed tapered-shaped slotted ultra-wideband(UWB) antenna is presented. The new design is composed of a rectangular slotted patch with a compact size of 21.44 × 23.53 mm2 and fed by microstrip transmission line of 50 Ω. The proposed antenna is simulated onto a less expensive FR4 substrate which has a height of 1.6 mm. There achieved a wider bandwidth of 8.51 GHz (3.49–12 GHz)...
In this paper, the Vivaldi Antenna which is meant for UWB Communication's has been initiated. The main motives behind this design is to achieve higher gain throughout the range of 3.1 GHz to 10.6 GHz as a result of which it fulfills the criteria's of UWB antenna for applications in wireless communication. In case of these developments, the author has used Rogers RT 5870 substrate with an epsilon value...
This paper is aimed to present a very small sized patch antenna for UWB applications. The antenna used microstrip feed-line. This antenna is very small in dimension. The total size of the antenna is 20×18mm2. Triangular slots in the partial ground plane, are used to get a better bandwidth. The antenna has VSWR<2 over the bandwidth. The whole designing and simulation process of the antenna is done...
The paper proposes an Ultra Wide Band (UWB) Planar Inverted F Antenna (PIFA) for Body Area Network (BAN) applications. A tapered feed is also introduced in order to overcome the narrow band characteristics of PIFA. The two shorting pins are introduced in the middle of the patch to enhance bandwidth performance. The proposed antenna has a low profile structure with overall size of 32mm × 36mm × 8mm...
The MIMO (Multiple Input Multiple Output) CPW (Coplanar Wave Guide) feed monopole antenna design with circular polarization is presented. The electrical length of the antenna is made larger by corrugating funnel shaped radiating structures. The corrugated nature of radiating patch elements and slot defected common ground plane helps to resonate both the monopoles at lower operating frequency of 2...
In this paper, a hybrid diversity is employed to a UWB MIMO antenna to enhance its MIMO performance evaluated through envelope correlation coefficient (ECC). Polarization-diversity is achieved through vertical and horizontal orientation of elements of the MIMO antenna and evaluated through cross and co-polarized patterns at frequencies 4.5 GHz, 6.5 GHz, and 8.5 GHz. Space-diversity is achieved by,...
This research is presented the comparison of geometry-shaped monopole antennas having three models those are rectangle, triangle and circle-shaped. Each proposed antenna has been the step-shaped etching technique on ground plane to enlarge bandwidth. These antennas were designed by CST program to simulate the variety of result such as reflection coefficient, gain and radiation patterns then the simulation...
This paper presents the design of a dual band planar monopole antenna operating in the ultra-wide band frequency range. The antenna is optimized by varying the radiator dimensions. Two values of radii are considered in this paper: 8cm and 12 cm. A copper circular disk has been used as the radiator and FR4 material is considered to create the substrate. To have an optimum performance the distance between...
In this paper, a novel extended Ultra Wide Band (UWB) wearable logo-type textile antenna for body area network applications is presented. The substrate of the proposed antenna is made of Fleece fabric with permittivity 1.17. The proposed antenna comprises of a hexagonal radiating patch and a partial ground plane. Ultra wide bandwidth is attained by optimizing the geometry, introducing a square notch...
This paper investigates the time-domain characteristics of an ultrawideband (UWB) dielectric resonator antenna (DRA) for two UWB input pulses. The computed spectrum amplitude of a fifth-order Gaussian pulse has better compliance, as per FCC mask, compared to a first-order Rayleigh pulse. The correlation between the input pulses and the radiated pulses in many directions were found to be less when...
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