Characterization of electromagnetic band-gaps composed of multiple periodic tripods with interconnecting vias: concept, analysis, and design

Barlevy, A.S.; Rahmat‐Samii, Y.

doi:10.1109/8.918607

Cited by 95 publications

(47 citation statements)

References 9 publications

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“…1a and 1b are assigned impedance equal to that of a parallel LC circuit, derived by geometry, and have a high surface impedance at an LC resonance frequency. Parametric studies on LC resonance have already been well discussed in references [6][7][8][9]. Meanwhile, the Peano curve shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…An AMC is a type of electromagnetic band gap (EBG) material or artificially engineered material with a magnetic conductor surface for a specified frequency band. AMC structures are typically realized based on periodic dielectric substrates and various metallization patterns [6][7][8], and several types of AMC ground planes have already been extensively studied [2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Comparative Study on Various Artficial Magnetic Conductors for Low-Profile Antenna

Sohn¹,

Kim²,

Tae³

et al. 2006

PIER

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Abstract-This paper investigated comparatively the characteristics of four types of artificial magnetic conductor (AMC) surface, including a mushroom-like (electromagnetic band gap) EBG, uniplanar compact EBG (UC-EBG), Peano curve, and Hilbert curve, as a ground plane for a low-profile antenna. The AMC surface structures are designed to have an in-phase reflection property for a plane wave of normal incidence in the vicinity of 2.45 GHz. The bandwidths of the in-phase reflection for the AMC surfaces and return losses, radiation patterns, and gains of the horizontal wire antennas on the AMC ground planes are all measured and compared with each other. The measured data show that all the AMC surfaces act as good ground planes for a lowprofile antenna, yet the bandwidth and gain of the mushroom-like EBG structure are broader and larger, respectively, than those of the other structures.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative Study on Various Artficial Magnetic Conductors for Low-Profile Antenna

Sohn¹,

Kim²,

Tae³

et al. 2006

PIER

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“…In PMM, the periodic Green's function is used to substitute the Green's function in free space in method of moments (MOM) and enforce the periodic boundary conditions [14,19]. Therefore, the electrical field integral equation (EFIE) in PMM can be represented as:…”

Section: Periodic Green's Functionmentioning

confidence: 99%

“…Mature methods are proposed to speed up the convergence. Methods based on Poisson summation are other effective ways to accelerate the convergence [1,14,16] by changing the spatial periodic Green's function into spectral form. The spectral form of the periodic Green's function can be written in Equation (7).…”

Section: Periodic Green's Functionmentioning

confidence: 99%

“…Periodic method of moments (PMM) based on periodic Green's function [14][15][16][17][18][19][20][21] is a typical technique to evaluate infinite array. When utilizing the method to compute the radiation of a periodic array, repeated evaluations of the Green's function series are required to fill the impedance matrix [14]. Nevertheless, it is time consuming for the slow convergence rate of the series [15].…”

Section: Introductionmentioning

confidence: 99%

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Radiation Analysis of Large Antenna Array by Using Periodic Equivalence Principle Algorithm

Zhang¹,

Yang²,

Yang³

et al. 2013

PIER

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Abstract-In this paper, an improved equivalence principle algorithm is proposed to solve the radiation problems of large antenna arrays with periodic structures. This method is a hybridization in which the typical scheme of periodic Green's function is combined with the original equivalence principle algorithm. The repeated elements are changed from the original antenna units into the surfaces enclosing the original ones. The proposed approach is compared with periodic method of moments which is based on the integral equation and the periodic Green's function. Numerical results validate the feasibility of the improved method.

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Artificial Magnetic Conductor

Díaz

Clavijo

2005

Encyclopedia of RF and Microwave Engineering

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The artificial magnetic conductor (AMC) is a textured ground plane that presents a high impedance to incident waves and nearby horizontal antennas over a prescribed frequency range. In addition, it suppresses the propagation of both transverse electric (TE) and transverse magnetic (TM) surface waves, thus concentrating the radiation from a horizontal antenna into the upper half‐space. The resulting reduced backlobe and reduced mutual coupling to any other antennas on the same surface, combined with the high input impedance, make the AMC an ideal gain‐enhancing ground plane for ultrathin antennas. It is shown that these desirable features of are derived from the AMC's effective anisotropic magnetodielectric constitutive properties. Analysis and design approaches are given that enable the control of these properties according to the desired frequency and bandwidth of operation and the amount of surface‐wave suppression needed. Examples of the latest applications of AMC are given, as well as a brief history of its inception.

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Characterization of electromagnetic band-gaps composed of multiple periodic tripods with interconnecting vias: concept, analysis, and design

Cited by 95 publications

References 9 publications

Comparative Study on Various Artficial Magnetic Conductors for Low-Profile Antenna

Comparative Study on Various Artficial Magnetic Conductors for Low-Profile Antenna

Radiation Analysis of Large Antenna Array by Using Periodic Equivalence Principle Algorithm

Artificial Magnetic Conductor

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