The U-slot rectangular patch antenna Figure I has been found experimentally to provide impedance and gain bandwidths of about without the need of stacked or coplanar parasitic elements [1,2]. Comparison with measured results are given. Analysis and design of broadband U-slot cut rectangular microstrip Jul 15,
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The U-slot rectangular patch antenna Figure I has been found experimentally to provide impedance and gain bandwidths of about without the need of stacked or coplanar parasitic elements [1,2]. Comparison with measured results are given. Analysis and design of broadband U-slot cut rectangular microstrip Jul 15, Broadband microstrip antenna using variations of U-slot has been widely reported. However, in most of the reported work, an in-depth explanation about the mode introduced by U-slot and procedure to design.
U-slot cut antennas at any given frequency is not explained. In this paper, first an Directory of Open Access Journals Sweden.
Full Text Available This paper presents an indigenous low-cost metamaterial embedded wearable rectangular microstrip patch antenna using polyester substrate for IEEE The proposed antenna resonates at 5. The electrical size of this antenna is 0. The slots are cut in rectangular patch to reduce the bending effect. A prototype antenna has been fabricated and tested, and the measured results are presented in this paper.
The simulated and measured results of the proposed antenna are found to be in good agreement. The bending effect on the performance of this antenna is experimentally verified. Full Text Available A rigorous full-wave analysis of high Tc superconducting rectangular microstrip patch over ground plane with rectangular aperture in the case where the patch is printed on a uniaxially anisotropic substrate material is presented. The effect of the superconductivity of the patch is taken into account using the concept of the complex resistive boundary condition.
The accuracy of the analysis is tested by comparing the computed results with measurements and previously published data for several anisotropic substrate materials. Numerical results showing variation of the resonant frequency and the quality factor of the superconducting antenna with regard to operating temperature are given. Finally, the effects of uniaxial anisotropy in the substrate on the resonant frequencies of different TM modes of the superconducting microstrip antenna with rectangular aperture in the ground plane are presented.
Influence of old rectangular repair patches on the burst pressure of a gas pipeline. Seven full scale hydrostatic burst tests were carried out on pipes extracted from an API 5LX52 gas pipeline that contained rectangular and elliptical fillet welded patches and other repairs of different geometries.
All breaks took place after widespread yielding. This analysis shows that the patches that generate greater risks are those that: 1 were attached to the pipeline at very low pressure 2 were placed to repair large defects 3 are rectangular , long in the direction of the pipe, and narrow 4 the quality of the weld is doubtful. Based on data reported by In Line Inspection ILI , of the four conditions mentioned above, only the third can be assessed in order to quantify risks and to schedule replacements.
Full Text Available Radio Frequency Identification is an emerging research topic to identify any object automatically and it has applications in many fields like manufacture industry, business, animal tracking, vehicle tracking etc.
In automatic identification system, the main role of radio frequency identification system is radiation and detection. The reader and the tag are the important components in radio frequency identification technology.
In radio frequency identification system, antenna plays very significant role to transmit and receive data in both direction i. An antenna with high gain, high directivity, high bandwidth and more down in negative S11 dB value works as an effective antenna. So design and optimization of an effective antenna is very necessary for any application.
In this paper, firstly itdesigned a rectangular patch antenna and simulated through High Frequency Structure Simulator.
In next step, it designed a metamaterial structure having U shape Split Ring Resonator with both one and two port, on the rectangular patch antenna to improve the return loss and bandwidth of patch antenna; so that the performance of the tag can be increased for the radio frequency identification system.
By simulation it has been seen that, two port antenna provides maximum return loss and bandwidth of - Finally, the output parameters such as return loss, gain, directivity that are obtained from simulation of the metamaterial Split Ring Resonator structure antenna are compared with the network output of Artificial Neural Network to find the Mean Square Error between the simulated output and Artificial Neural Network output. Dual band multi frequency rectangular patch microstrip antenna with flyswatter shaped slot for wireless systems.
In this paper a dual band planar antenna has been proposed for IEEE The antenna comprises a frequency bandwidth of MHz 3. The proposed antenna constitutes of a single microstrip patch reactively loaded with three identical steps positioned in a zig-zag manner towards the radiating edges of the patch. The antenna design is primarily focused on achieving a dual band operation. Bhardwaj, Dheeraj, E-mail: dbhardwaj. The coaxially fed patch antenna characteristics radiation pattern, antenna gain, antenna directivity, current distribution, S11 have been investigated.
Full Text Available The original U-shaped patch antenna is properly modified in this work to provide a compact and broadband antenna configuration with reduced cross-polar effects, well suitable for modern radar applications.
The proposed antenna layout is applied to design, realize, and test two different prototypes working at P-band and C-band, typically adopted for ground-penetrating radar.
Full Text Available In this paper, two different planar quad-band antennas are designed, modeled, fabricated and measured. Subsequently, the antennas are redesigned using an electromagnetic band gap substrate EBG. The antennas designed have been also built and measured to compare the real results with those obtained from the simulations.
This paper presents effects of substrate permittivity and thickness on the performance characteristics like impedance bandwidth, radiation efficiency and gain of a single-layer, wideband, U-slot antenna The proposed antenna is a dual band microstrip patch antenna using U-slot geometry. The operating frequencies of the proposed antenna are chosen as 2. Several parameters have been investigated using Ansoft Designer software.
The antenna is fed through a quarter wavelength transformer for impedance matching. An additional layer of alumina is added above the surface of the conductors to increase the performance of the antenna. Paper-based inkjet-printed tri-band U-slot monopole antenna for wireless applications.
Realization of a U-slot tri-band monopole antenna on a low-cost paper substrate using inkjet-printed technology is presented for the first time. The U-shaped slot is optimized to enhance the bandwidth and to achieve tri-band operation of 1. The antenna is fabricated through a metallic nanoparticle ink on a standard commercial paper.
The impedance bandwidth, current distributions, radiation patterns, gain, and efficiency of the antenna have been studied through computer simulations and measurements.
Full Text Available In this paper a new geometry of circularly polarized patch antenna is proposed with improved bandwidth. The radiation performance of proposed patch antenna is investigated using IE3D simulation software and its performance is compared with that of conventional rectangular patch antenna.
The simulated return loss, axial ratio and impedance with frequency for the proposed antenna are reported in this paper. It is shown that by selecting suitable ground-plane dimensions, air gap and location of the slots, the impedance bandwidth can be enhanced upto Rectangular cartograms: the game. Raisz  introduced rectangular cartograms in as a way of visualizing spatial information, such as population or economic strength, of a set of regions like countries or states.
Rectangular cartograms represent geographic regions by rectangles; the positioning and adjacencies of the rectangles. Best connected rectangular arrangements. Full Text Available It can be found quite often in the literature that many well-known architects have employed either the golden rectangle or the Fibonacci rectangle in their works. On contrary, it is rare to find any specific reason for using them so often. Recently, Shekhawat proved that the golden rectangle and the Fibonacci rectangle are one of the best connected rectangular arrangements and this may be one of the reasons for their high presence in architectural designs.
In this work we present an algorithm that generates n-4 best connected rectangular arrangements so that the proposed solutions can be further used by architects for their designs.
Cooling of rectangular bars. A solution of the time-transient Heat Transfer Differential Equation in rectangular coordinates is presented, leading to a model which describes the temperature drop with time in rectangular bars. Following these models, a generalization has been made, which permits cooling time evaluation for all profiles. These results are compared with experimental laboratory data in the to 0 C range. Some other existing models were also studied which have the purpose of studing the same phenomenon.
Their mathematical forms and their evaluated values are analyzed and compared with experimental ones. Author [pt. Experiences with rectangular waveguide. A simple and didactic experimental arrangement is presented to show wave propagation along a structure with translational symmetry, particularly the rectangular waveguide.
Parameters of this waveguide as cutoff frequency, guide wavelength and field distribution of fundamental mode can be measured. For this purpose a large paralelepipedical waveguide structure is designed and built, its dimensions can be varied in order to change its parameters. Author 9 refs. The size of the rectangular microstrip patch antenna varies according to the dielectric constant of substrate materials used. The operating frequency taken for this analysis is 5.
The proposed design provides the study on the performance of rectangular microstrip patch antenna for different substrate materials using the same frequency. This study conveys that which substrate material provides better performance. Moreover, this comparative study conveys that which substrate material provides better performance.
The simulation parameters are investigated using HFSS. Rectangular spectral collocation. Boundary conditions in spectral collocation methods are typically imposed by removing some rows of the discretized differential operator and replacing them with others that enforce the required conditions at the boundary.
A new approach based upon resampling differentiated polynomials into a lower-degree subspace makes differentiation matrices, and operators built from them, rectangular without any row deletions. Then, boundary and interface conditions can be adjoined to yield a square system. The resulting method is both flexible and robust, and avoids ambiguities that arise when applying the classical row deletion method outside of two-point scalar boundary-value problems.
The new method is the basis for ordinary differential equation solutions in Chebfun software, and is demonstrated for a variety of boundary-value, eigenvalue and time-dependent problems. Isogeometric shape optimization of photonic crystals via Coons patches. In this paper, we present an approach that extends isogeometric shape optimization from optimization of rectangular -like NURBS patches to the optimization of topologically complex geometries. We have successfully applied this approach in designing photonic crystals where complex geometries have A Characterization of Rectangular Distributions.
I have not and will not be a party to any illegal activity. This time not on my current hardware, but with carefully selected parts which I could borrow for the time being, how nice! So having a clean sheet of paper to begin with, what hardware did I bring home for OSx86? Next to that, it has the Intel GMAgraphics , which is as far as I know exactly the same as in the dev-kit.
JAS 1111A GENERIC PATCH FINAL PDF
Do not set filter in. If necessary change C81 to a value which permits this adjustment. Ohms Select 17 3. Filter is selected and F. Apply 1 volt d. The circuitry is placed into the 0.
Forgot your password? Or sign in with one of these services. My friend has given me a copy of the OSX A lot of sites have linked to rapidshare.