Analysis of Printed Antennas Mounted on a Coated Circular Cylinder of Arbitrary Size

Kaifas, Theodorοs N.; Sahalos, John N.

doi:10.1109/tap.2006.882159

Cited by 16 publications

(13 citation statements)

References 26 publications

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“…5, the magnitude (in dB) and phase of mutual impedances , and versus for various values are shown. The parameters are chosen the same as in [27] and [28], yielding a duplication of the results presented previously in [27] and [28]. Very good agreement is obtained between the eigenfunction solution and the new CFGF expressions.…”

Section: Numerical Resultsmentioning

confidence: 98%

“…2, where the imaginary part of versus is plotted for and using (10) and (23) (real parts of both summations converge rapidly) for a dielectric coated PEC cylinder with ( free-space wavelength), . Because the spatial domain Green's function is related to the spectral domain Green's function by an inverse Fourier transform (IFT) over , given by (28) the final spectral domain expression (23) should not pose any problems for integration variable . However, the following three problems have to be resolved.…”

Section: Spectral Domain Green's Function Expressions Atmentioning

confidence: 99%

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Closed-Form Green's Function Representations in Cylindrically Stratified Media for Method of Moments Applications

Karan

Ertürk

Altintas

2009

IEEE Trans. Antennas Propagat.

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Cataloged from PDF version of article.Closed-form Green's function (CFGF) representations for cylindrically stratified media, which can be used as the kernel of an electric field integral equation, are developed. The developed CFGF representations can safely be used in a method of moments solution procedure, as they are valid for almost all possible source and field points that lie on the same radial distance from the axis of the cylinder (such as the air-dielectric and dielectric-dielectric interfaces) including the axial line (ρ = ρ′ and φ = φ′), which has not been available before. In the course of obtaining these expressions, the conventional spectral domain Green's function representations are rewritten in a different form so that i) we can attack the axial line problem and ii) the method can handle electrically large cylinders. Available acceleration techniques that exist in the literature are implemented to perform the summation over the cylindrical eigenmodes efficiently. Lastly, the resulting expressions are transformed to the spatial domain using the discrete complex image method with the help of the generalized pencil of function method, where a modified two-level approach is used. Numerical results are presented in the form of mutual coupling between two current modes to assess the accuracy of the final spatial domain CFGF representations. © 2009 IEE

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Section: Numerical Resultsmentioning

confidence: 98%

Section: Spectral Domain Green's Function Expressions Atmentioning

confidence: 99%

Closed-Form Green's Function Representations in Cylindrically Stratified Media for Method of Moments Applications

Karan

Ertürk

Altintas

2009

IEEE Trans. Antennas Propagat.

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“…They are also used for radio communication with aircrafts and marine objects. The theory of the CMA has been developed intensively over the three last decades [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. It started with approximate models like cavity and transmission line models [1][2][3][4] and came to full-wave approaches like moment method (MOM) [6-8, 10-11, 13-18], finite elements (FEM) [9] and finite difference method (FDTD) [12].…”

Section: Introductionmentioning

confidence: 99%

“…It started with approximate models like cavity and transmission line models [1][2][3][4] and came to full-wave approaches like moment method (MOM) [6-8, 10-11, 13-18], finite elements (FEM) [9] and finite difference method (FDTD) [12]. The MOM in comparison with FEM and FDTD exploits the Green's function (GF) and can be applied in both space [7,[10][11]14,17] and spectral [5][6]8,13,[15][16]18] domains. In FEM and FDTD we have to do a lot of work because we deal with calculations in a volume.…”

Section: Introductionmentioning

confidence: 99%

Probe and line-fed cylindrical microstrip antennas with complex-shaped patches

Svezhentsev

Vandenbosch

2014

2014 44th European Microwave Conference

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Cylindrical microstrip antennas (CMAs) with complex-shaped patches are analyzed by the moment method in the spectral domain. The structures are fed by a probe as well as by a cylindrical microstrip line. The asymptote extraction technique for the spectral Green's function is applied to increase the calculation efficiency not only for elements of the impedance coupling matrix but also for the elements of the voltage vector produced by the probe. Different shapes of parches are discussed: in particular U-shaped patches, patches with slots and notches, and coupled looped patches. The return loss for the probe and line fed CMA are presented. The shift of the resonant frequency of the CMA is analyzed with respect to the resonant frequency of the CMA having a traditional cylindrical rectangular patch. For the line-fed CMA with two pairs of coupled loop patches an H-polarized omnidirectional radiation pattern in the azimuthal plane has been reached.

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“…As fullwave solutions are more accurate and applicable to many structures, some researchers begin to study the MoM-based solution for MSAs, such as [4][5][6][7][8][9][10][11][12][13] in recent years. The integral equation formulation solved using the method of moments (MoM) [14][15][16] is known as an efficient tool.…”

Section: Introductionmentioning

confidence: 99%

Computer Aided Design and Simulation of a Multiobjective Microstrip Patch Antenna for Wireless Applications

Singh¹,

Gangwar²

2011

IJACSA

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Abstract-The utility and attractiveness of microstrip antennas has made it ever more important to find ways to precisely determine the radiation patterns of these antennas. Taking benefit of the added processing power of today's computers, electromagnetic simulators are emerging to perform both planar and 3D analysis of high-frequency structures. One such tool studied was IE3D, which is a program that utilizes method of moment. This paper makes an investigation of the method used by the program, and then uses IE3D software to construct microstrip antennas and analyze the simulation results. The antenna offers good electrical performance and at the same time preserves the advantages of microstrip antennas such as small size, easy to manufacture as no lumped components are employed in the design and thus, is low cost; and most importantly, it serves multiple wireless applications.

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Analysis of Printed Antennas Mounted on a Coated Circular Cylinder of Arbitrary Size

Cited by 16 publications

References 26 publications

Closed-Form Green's Function Representations in Cylindrically Stratified Media for Method of Moments Applications

Closed-Form Green's Function Representations in Cylindrically Stratified Media for Method of Moments Applications

Probe and line-fed cylindrical microstrip antennas with complex-shaped patches

Computer Aided Design and Simulation of a Multiobjective Microstrip Patch Antenna for Wireless Applications

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