FDTD Analysis of a Dual-Frequency Microstrip Patch Antenna

Gao, Si‐Ping; Li, Le‐Wei; Sambell, A.

doi:10.2528/pier04120102

Cited by 43 publications

(24 citation statements)

References 25 publications

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“…The application of the FDTD scheme to a helix antenna is a rather complicated issue, as it has already been mentioned, due to the small spatial resolution that is demanded to accurately model such a complex structure, in contradiction to the rather straightforward FDTD modeling of other common antennas such as a λ/4 monopole antenna [22], a microstrip patch antenna [23] or a square slot antenna [24]. In this study, in order to model the helix through the FDTD, the coordinates of each segment comprising the MoM implementation of the helical handset were used.…”

Section: Fdtd Implementation Of the Helical Handsetmentioning

confidence: 99%

Theoretical Approach of the Interaction Between a Human Head Model and a Mobile Handset Helical Antenna Using Numerical Methods

Kouveliotis¹,

Panagiotou²,

Varlamos³

et al. 2006

PIER

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Abstract-The interaction of a helical antenna, mounted on a mobile handset, with a human head phantom is investigated in this paper. Using the Genetic Algorithms (GA) technique combined with the Method of Moments (MoM), an optimization of the antenna structure is achieved regarding the input impedance at the operating frequency. The Finite Difference Time Domain (FDTD) method is then applied to simulate the handset's function in the close region of a spherical homogeneous and heterogeneous head phantom. A formula, based on an application of an existing model proposed by Kuster and Balzano for dipole antennas, provides a rather accurate prediction of the induced Specific Absorption Rate (SAR) values in the human head due to the radiating helical antenna. The concept of relating the SAR to the current on the antenna is used in this study to formulate the final expression. Moreover, using the theory of regression, the results of the calculated peak or average SAR are correlated with the distance between the antenna and phantom and with the standing wave ratio (SWR) at the antenna feed point. Thus, the conception that the SAR is indeed related to the antenna operational parameters is reinforced by the outcome of the current study.

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Section: Fdtd Implementation Of the Helical Handsetmentioning

confidence: 99%

Theoretical Approach of the Interaction Between a Human Head Model and a Mobile Handset Helical Antenna Using Numerical Methods

Kouveliotis¹,

Panagiotou²,

Varlamos³

et al. 2006

PIER

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“…In this paper, the finite-different time domain (FDTD) method is applied to simulate the propagation characteristic of TR UWB electromagnetic wave in indoor environment [19][20][21]. The characteristics of time compression and spacing focusing of TR UWB signals are analyzed, and UWB signal transmissions for TR UWB communication are studied numerically to demonstrate its potential applications.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Study on Time- Reversal Electromagnetic Wave for Indoor Ultra-Wideband Signal Transmission

Xiao¹,

Chen²,

Wang³

et al. 2007

PIER

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Abstract-In this paper, the propagation of ultra-wideband (UWB) pulse based on time reversal (TR) technique is studied by finitedifferent time-domain method in indoor environment.Time compression and spatial focusing of TR waveform are simulated and the propagation of multi-waveform string is analyzed. Then UWB wireless signal transmission based on TR concept is studied numerically. The studied results indicate that the UWB communication based on TR technique can obtain better Inter-Symbol Interference (ISI) and CoChannel Interference (CCI) performance than traditional one because of its unique property.

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“…For some numerical methods in electromagnetics such as the finite element method (FEM) [10][11][12][13]19], finite-difference method (FDM) [2][3][4][20][21][22][23][24], the transmission line matrix (TLM) [25][26][27][28] and method of lines (MoL) [29][30][31][32], the fundamental mode of transverse electric or transverse magnetic field of the studied structure is considered as an excitation source. This excitation mode is named extended source.…”

Section: Introductionmentioning

confidence: 99%

More Efficiency of Transverse Wave Approach (Twa) by Applying Anisotropic Mesh Technique (Amt) for Full-Wave Analysis of Microwave Planar Structures

Ayari

Aguili²,

Baudrand³

2009

PIER B

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Abstract-The present paper sets out to present a numerical electromagnetic (EM) method TWA for EM field modeling of planar structures. Combining both the benefits of TWA process and the modeling of planar excitation source, an optimization technique AMT is applied and evaluated in context of RF integrated-circuit applications. The computational complexity of TWA process is examined and the obtained simulation results are found to be in good agreement with literature. Index Terms-Transverse wave approach (TWA), anisotropic mesh technique (AMT), computational complexity, planar structures 384Ayari, Aguili, and Baudrand

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FDTD Analysis of a Dual-Frequency Microstrip Patch Antenna

Cited by 43 publications

References 25 publications

Theoretical Approach of the Interaction Between a Human Head Model and a Mobile Handset Helical Antenna Using Numerical Methods

Theoretical Approach of the Interaction Between a Human Head Model and a Mobile Handset Helical Antenna Using Numerical Methods

A Numerical Study on Time- Reversal Electromagnetic Wave for Indoor Ultra-Wideband Signal Transmission

More Efficiency of Transverse Wave Approach (Twa) by Applying Anisotropic Mesh Technique (Amt) for Full-Wave Analysis of Microwave Planar Structures

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