rf antenna technologies


ANALYTICAL STUDY OF NEXT GENERATION ANTENNA FOR WIRELESS APPLICATIONS
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ABSTRACT Now a day, high-speed wireless communication is in trend. In wireless communication systems reflection or diffraction of signal produce multipath fading, delay and interference between signals. It becomes a need to separate desired signal from

Analysis and Design of a Multi-Frequency Microstrip Antenna Based on a PBG Substrate
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ABSTRACT Based on the C-shaped microstrip slot antenna, a new photonic band gap substrate for multifrequency microstrip slot antenna is designed. The antenna has a groove been dug below the radiation plate, within which the radiation plate is placed, and air

Investigation of Wideband Coplanar Antenna for Energy Scavenging System.
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The RF energy harvesting system is known as remotely powered device that converts RF to DC power without requiring any internal source while extracting its power from propagating

The Multiple Periodic Structure Antenna Design
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ABSTRACT In this paper, the generalized analysis and novel application of the multiple periodic (MP) structure are proposed. Both transmission and radiation performances of one dimensional MP structures are studied. The dispersion relations are analyzed from both

Reflector Antenna Analysis using Physical Optics on Graphics Processing Units
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ABSTRACT The Physical Optics approximation is a widely used asymptotic method for calculating the scattering from electrically large bodies. It requires significant computational work and little memory, and is thus well suited for application on a Graphics Processing

Analysis and Simulation of Fractal Antenna for Mobile Wimax.
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Abstract The growing demand of wireless services requires the definition of new standards able to provide an increased degree of mobility for the end user and a higher speed of data transmission. Among emerging standards, one of the most promising is the IEEE 802.16

Numerical Calculation of the Fields on the Aperture Plane of an Impulse Radiation Antenna
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ABSTRACT A numerical procedure for the calculation of the fields on the aperture plane of an Impulse Radiating Antenna in the frequency domain is presented. The procedure avoids the calculation of the derivative of the inverse of the Jacobi SN function. Keywords-Impulse

Horn antenna design for BAN millimeter wave onbody communication
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ABSTRACT In this paper, a 60-GHz H-plane horn antenna is designed and studied in the context of Body Area Network (BAN). Targeting both size reduction and bandwidth widening, we obtain an optimal design that meet a good tradeoff between compactness, matching,

PCB-Embedded Antenna for 80 GHz Chip-to-Chip Communication
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Abstract We propose a printed circuit board (PCB)-embedded antenna for millimeter-wave chip-to-chip communication. The antenna is 0.18 mm in height which is 1/20 wavelength at 80 GHz. In order to realize such a low profile, a zeroth-order resonator antenna with a

COMPACT CPW FED MODIFIED CIRCULAR PATCH ANTENNA
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ABSTRACT This paper presents the design and performance of a coplanar waveguide (CPW) fed modified circular patch antenna having overall size 38mm 37.5 mm. The circular patch antenna designed on glass epoxy FR4 substrate is truncated from its three sides in such a

Design and Simulation of Square Shape Fractal Antenna
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Abstract This paper describes the design and simulation of novel square shape fractal antenna using Hfss11. 1 electromagnetic simulation software. The fractal structure is advantageous in generating multiple frequencies or enhancing bandwidth. Square shape

A Composite Heterostructure Mesh-shaped Patch Antenna Based on Left Handed Material
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Abstract In this paper, a composite heterostructure mesh-shaped patch antenna based on left handed material (LHM) is presented. The method of finite difference time domain (FDTD) is used. The results show that electromagnetic wave resonance occurs near 4.52 GHz,

A Nonlinear Input Shaping Technique for Motion Control of a Sensing Antenna
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ABSTRACT Flexible links combined with force and torque sensors can be used to detect obstacles in mobile robotics, as well as for surface and object recognition. These devices, called sensing antennae, perform an active sensing strategy in which a servomotor

Electromagnetic Field Coupling To Arbitrary Wire Configurations Above A Lossy Ground Using The Antenna Theory Approach
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Abstract. The paper deals with the electromagnetic field coupling to multiple wires of arbitrary shape above a lossy ground using the antenna theory approach. The problem is formulated in terms of the set of Pocklington integro-differential equations which is solved

Antenna without Phase Center for DOA Estimation in Compressive Array Processing.
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Abstract Recently, Compressive Sensing (CS) has been applied to array signal processing. In theory, Direction-of-Arrival (DOA) estimation based on CS recovery can work well in correlated environments. However, a large number of sensors (ie, linear measurements)

Design of A Compact, Low-Profile, Elliptical Patch UWB Antenna and Performance Analysis in Vicinity of Human Layered Tissue Model for Wireless Body Area
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ABSTRACT A compact, low-profile, coplanar waveguide fed elliptical patch UWB antenna is proposed in this paper, and then imposed on human body environment for Wireless Body Area Network (WBAN) applications. A comparison of performance of the designed

Radiation Characteristics Improvement of Monopole Antenna Above Glass Substrate for WBAN Applications
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ABSTRACT A P-shaped monopole antenna (PSMA) attached with a glass substrate is proposed for wireless body area networks (WBAN) applications. The study investigates the performance of PSMA above reflection plane substrates with di erent material of glass and

Greater Municipal Role in Approving Cellular Antenna Placement
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its Antenna Tower Siting Policy. While the actual changes to the policy have not yet taken place and will be made in the near future, the announcement emphasized that they will strengthen requirements for

Analysis of Fractal Antenna for Ultra Wideband Application
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ABSTRACT Aims of this study are to design a simple and compact microstrip-fed Ultra Wide Band (UWB) printed fractal antenna and analyze the performance of the antenna for different iterations. A second iteration of a triangle patch antenna is proposed to perform UWB.

Characteristics of a Single I-shaped Slitted Zeroth-Order Resonance Mushroom Antennabased on Metamaterials
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ABSTRACT The broadband design of a metamaterials-based zeroth-order resonance (ZOR) mushroom antenna with an I-shaped slit is presented and experimentally studied. The presented metamaterials-based antenna uses a unit cell based on a composite right/left

Centimeter Positioning with a Smartphone-Quality GNSS Antenna
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Abstract This paper demonstrates for the first time that centimeter accurate positioning is possible based on data sampled from a smartphone-quality Global Navigation Satellite System (GNSS) antenna. Centimeter-accurate smartphone positioning will enable a host

Influence of Inhomogeneous Anisotropic Ground Conductivity upon the Directivity of ELF Line-Current Antenna
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ABSTRACT The radiated field of a horizontal ELF Line-current antenna on the inhomogeneous anisotropic ground is analyzed. Influence of inhomogeneous anisotropic ground conductivity upon the directivity of the antenna is researched. The disposal criterion of the antenna

Measurement and analysis of the lowest resonant mode of a spherical annular-sector patchantenna
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ABSTRACT The cavity model for patch antennas has been used extensively since 1970s. This model gives excellent first-order estimates for the antenna’s internal fields near any resonant frequency. Although frequently used for planar geometries, there is no reason why the

Beam-Tilting Improvement of Balanced Antipodal Vivaldi Antenna Using a Dielectric Lens
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ABSTRACT Conventional Balanced Antipodal Vivaldi Antenna (BAVA) usually suffers from beam-tilting at upper working frequencies. For compensating the beam-tilting, we have proposed a New BAVA. By adding an ovalshaped dielectric lens at the end of the antenna

CERAMIC MATERIAL BASED MULTIBAND PATCH ANTENNA FOR SATELLITE APPLICATIONS
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Materials have a vital effect on satellite communications. Using PTFE ( Polytetrafluoroethylene) composite ceramic material, a fractal triangular shape multiband satellite application antenna has presented in this paper. Different kinds of material

Design of an UWB Patch Antenna for Dual Frequency Operations
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ABSTRACT The purpose of this study is to present the development of an Ultra-Wide Band (UWB) patch antenna for dual frequency operations. The size of the proposed antenna is 40 40 1.6 mm3 and is excited by micros trip line. The Finite Element Method (FEM)

Double-layer Perfect Metamaterial Absorber and Its Application for RCS Reduction of Antenna
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Abstract. To reduce the radar cross section (RCS) of a circularly polarized (CP) tilted beam antenna, a doublelayer perfect metamaterial absorber (DLPMA) in the microwave frequency is proposed. The DLPMA exhibits a wider band by reducing the distance between the

Downlink Beamforming and Power Control With Per-Antenna Power Constraints
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ABSTRACT We study a system where a base station (BS) with an antenna array serves multiple users. Each user has a single antenna. Due to practical limitations, each antenna of the BS has an individual power constraint. Assume that only long-term channel state

Optimization Of Capacity Of MIMO Antenna Based Wireless System Using Genetic Algorithm
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ABSTRACT In this work, at the earlier stage, the signal formation and the initial antenna array setup is considered as the input population set to the Genetic process. The genetic process is defined for N number of iterations. With each iteration, the two parent configurations are

Microstrip Antenna Array with I-Shaped DGS
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ABSTRACT This paper proposed a microstrip antenna array with DGS (Defective Ground Structure). The structure in this work is 2* 1 microstrip patch array antenna using substrate with h= 0.762 mm and er= 3.2. Two triangular-shaped patches are located on opposite

Microstrip Antenna Array with I-Shaped DGS
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ABSTRACT This paper proposed a microstrip antenna array with DGS (Defective Ground Structure). The structure in this work is 2* 1 microstrip patch array antenna using substrate with h= 0.762 mm and er= 3.2. Two triangular-shaped patches are located on opposite

S-band Helix Antenna for On-Board Stratospheric Balloon Operation
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ABSTRACT This paper summarizes the design and testing of an on-board antenna designed for the ground link communication in a stratospheric balloon system. The antenna operates at S-band and is based on a quad filar helix design with a shaped pattern in circular


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