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A novel fractal planar inverted F antenna (F-PIFA) based on the self affinity design is presented in this paper. The procedure for designing a Fractal Planar Inverted F Antenna is explained and the 2nd iteration of Sierpinski Carpet is chosen to use in mobile phones. The F-PIFA has a total dimension 27 mm ?? 27 mm are designed and optimized in order to receive GSM (global system for mobile communication)...
A five-element inverted-F antenna array on mobile terminal for both multiple input multiple output (MIMO) communications and radio direction finding (RDF) applications is presented. The multi-element antenna (MEA) system has been designed to be used in the frequency band of the future Long Term Evolution (LTE) system at 3400-3600 MHz and integrated along the edges of the upper ground plane of a clamshell...
BST dielectric loaded helical antenna designed here was found to be as good to operate on WLAN products. Characteristics of the new dielectric material barium strontium titanate (BST) also known as dielectric resonator had helped maintained the antenna overall performance in terms of bandwidth, radiation pattern, gain and efficiency. Work done here was modeled and simulated using computer simulation...
Anechoic chambers signal absorption capability is directly correlated to its performance. One of the main components in enabling signal absorption is the design and material used in designing the absorbers. Two of the main types are pyramidal and wedge-shaped ones. In this work, truncated pyramidal and truncated wedge absorbers for anechoic chamber application have been designed to operate effectively...
Microstrip stop-band filters based on complementary split ring resonators has been proposed in this project. Two shapes (circle and square) of SRRs have been investigated to come out device which is designed to suppress frequency 2.4-2.48 GHz (with a center frequency of 2.45 GHz) and the frequency spectrum between 5 - 6 GHz. The combinational design of each shape which is able to suppress is then...
This paper presents the design of a single rectangular microstrip patch antenna for operation at 2.4 GHz frequency on Radio Frequency (RF) antenna application using low temperature co-fired ceramic (LTCC) technology. LTCC is chosen as the substrate because of compactness and or being light-weight. It also offers high-speed and functionality for portable electronic devices used for wireless voice and...
The design and experimental demonstrations of a microstrip patch antenna for broadband WLAN application are presented. The physical parameters of the antenna, including based on a diamond patch, antenna input impedance, antenna thickness and small parasitic plane as the ground plane dimensions, are studied. The influence of various parameters on antenna characteristics has been investigated using...
This work reports on the performance simulation of two element units of microstrip dipole array antennas for WLAN application. Simulation is done using two different simulation techniques, the circuit model (CM) derived from the transmission line model (TLM), and is compared with another simulation set using the method of moments (MoM). Both methods are simulated using Microwave Office. The basic...
This paper presents a dielectric resonator antenna (DRA) suitable for wireless communication applications at 5.0 GHz. The proposed DRA utilizes a ferroelectric material, Barium Strontium Titanate (BST) in cylindrical form with dielectric constant of epsivr = 250. The antenna is fed with 50 Omega microstrip transmission lines. The physical parameters of the antenna, including radius (r), height (h),...
This paper proposed a performance simulation of a two-element, microstrip dipole array antenna for WLAN application. Simulation is done using two different simulation techniques, the circuit model (CM) derived from the transmission line model (TLM), and is compared with another simulation set using the Method of Moments (MoM). Both methods are simulated using Microwave Office. The basic microstrip...
This paper proposed a microstrip patch antenna for broadband WLAN application. The antenna is based on an octagonal patch, which is simulated and analyzed by using Microwave Office (MWO) for WLAN applications. The designed antenna exhibited a broad 230 MHz bandwidth, by using a small parasitic plane as the ground plane. Specification of this antenna, printed over a thin FR4 substrate of dielectric...
Introduction of parasitic plane as additional radiator helps to produce desired resonant frequencies, while helping to minimize the size of the antenna. A dual-band monopole antenna with parasitic plane is designed to satisfy dual-band applications, namely UMTS and WLAN 802.11. This work is an effort to investigate the effect of employing an inverted M-shaped parasitic plane, which introduces double...
This paper describes the concept of a new fractal multi-band antenna based on the hexagon shape. Three iterations of the hexagonal fractal multi-band antenna arranged are examined. With this structure it is possible to configure the multi-band frequency and radiation pattern to obtain directional patterns with high directivity and gain. The ADS software was used to design and analyze the antenna array...
This work is an effort in investigating and modeling an accurate circuit model derived from the transmission line method (CM/TLM) by simulating a rectangular microstrip patch array using two different simulation techniques, the transmission line method (TLM) and method of moments (MoM). Each array contains two element units of rectangular patches. This basic rectangular patch is very accurately modeled...
Amplitude fluctuations in signals received over mobile radio channels are typically modeled by a Rayleigh distribution. The field statistics in the volume of the enclosure are shown to correspond to the Rayleigh statistics found in properly functioning reverberation chambers when a sufficiently large number of modes is excited. This paper gives an investigation of statistical characteristics in Rayleigh...
MIMO technology has attracted a lot of attention in the area of wireless communications such as radar applications, in term of increasing the spectral efficiency. This research paper presents the model of simulated radar emission environment for RWR testing using MATLAB. For the first phase of the research, the radar emission environment is modeled by modeling four directions of signals as continuous...
Numbers of small antennas were designed and various kinds of antennas were tested for measurement. The purpose of this paper is to show that the antenna efficiency can be measured accurately in much faster, easier and cost effectively reverberation chamber.
Two methods of determining an antenna's efficiency are compared. Each of these methods was used to measure the efficiency of three different antennas (two monopole antennas with attenuator and surface mount resistor, and modified folded monopole patch antenna). The experimental results from both methods which were obtained are discussed. The purpose of this paper is to show that the antenna efficiency...
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