Multiport network approach for modeling the mutual coupling effects in microstrip patch antennas and arrays

Benalla, A.; Gupta, K.C.

doi:10.1109/8.18700

Cited by 36 publications

(14 citation statements)

References 9 publications

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“…As a result, the return losses for these elements are still different. Therefore, in the final array design, elements 1 and 2 as well as their symmetrical counterparts (elements 19 and 18, respectively) should be treated differently from the interior or inner elements (elements [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: A a 1 â 19 Linear Phased Array Antennamentioning

confidence: 99%

“…Equivalent source method has been used for calculating the mutual coupling between discontinuities in planar circuits [1][2][3]. When it comes to a large but finite-extent antenna array, there are two main methods for modeling mutual coupling, namely the spatial domain (element-byelement) method and the spectral domain (periodic cell) method [4].…”

Section: Introductionmentioning

confidence: 99%

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Modeling of mutual coupling of arbitrary order in coupled circuits and array antennas

Han

2010

Int J RF and Microwave Comp Aid Eng

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This article presents a fundamental strategy for accurately modeling the mutual coupling of arbitrary order in any large-scale electromagnetic structures and high-density integrated chips such as antenna array elements and coupled circuit elements. The proposed method starts from the modeling of the first-order mutual coupling, and it consists of two main steps. First of all, an equivalent circuit model describing low-order mutual coupling (adjacent coupling) is characterized and established, of which each parametric value is accurately extracted by making use of a numerical calibration technique. Then, the circuit model for high-order mutual coupling (crossover or crosstalk coupling) is generated from the lower order models, and it can further be used for the modeling of mutual coupling of any higher order. The accuracy and efficiency of the proposed method are demonstrated by three different kinds of structure including a linear phased array antenna, a finite periodic electromagnetic structure, and a planar low-pass filter. This novel approach represents an easy, fast, and effective characterization of arbitrary-order mutual coupling. It can find applications in the modeling of mutual coupling between any circuit elements and building blocks such as antennas, resonators, and even small discontinuities, and it promises to be helpful for the analysis and iterative design of microwave circuits and antenna arrays.

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Section: A a 1 â 19 Linear Phased Array Antennamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling of mutual coupling of arbitrary order in coupled circuits and array antennas

Han

2010

Int J RF and Microwave Comp Aid Eng

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“…For example, the rnultiport network model allows us to incorporate the effect of mutual coupling among different edges of a patch or among patches of an array [17] by defining a mutual coupling network (MCN). The edge admittance terms associated with various ports at the edges constitute the diagonal terms of the admittance matrix for the MCN.…”

Section: Modeling Of Mutual Couplingmentioning

confidence: 99%

MULTIPORT NETWORK MODELING APPROACH FOR CAD OF MICROSTRIP PATCHES–Invited Paper

Gupta

Benalla

1989

Electromagnetics

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This paper reviews the recently developed multiport network modeling approach for the analysis and the design of microstrip patch antennas. In this approach: the fields in the interior and the exterior of the patch are modeled by separate multiport subnetworks. Network theoretic techniques are then applied for the analysis, the sensitivity analysis, and the optimization of the antenna configuration. Several examples of antenna configurations for which this approach has been applied are summarized. The suitability of this approach for the CAD of microstrip patch antennas is pointed out.

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“…As a matter of fact, if a given patch is affected by N adjacent elements, the ports of the relevant MCN will be connected to all these patches. In particular, where thin substrates without dielectric cover layer are adopted (this is actually the assumption in the presented study), the elements of the Y -matrix characterizing MCN networks can be easily obtained from the reaction between the equivalent magnetic current sources at the corresponding sections of the edges of interacting patches, as discussed in [14].…”

Section: Multiport Network Modeling Of the Arraymentioning

confidence: 99%

“…In this way, the initial array element locations and excitation distributions useful to mimic a given radiation pattern can be determined analytically while addressing design constraints relevant to the minimum antenna spacing, array aperture, and maximum number of power levels to be operated in the array beam-forming network. The obtained array configuration is afterwards processed within a dedicated Particle Swarm Optimization (PSO) algorithm [8][9][10][11][12] in combination with a multiport network approach [13,14] for computationally efficient modeling of the parasitic mutual coupling between the antenna elements. Along these lines, an enhancement of the convergence in terms of the number of iterations within the metaheuristic procedure and, consequently, a reduction of the total computational time required to obtain a converged solution of problem can be achieved.…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Deterministic/Metaheuristic Synthesis Technique for Non-Uniformly Spaced Linear Printed Antenna Arrays

Caratelli¹,

Viganó²,

Toso³

et al. 2013

PIER

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Abstract-A novel hybrid approach to the synthesis of non-uniformly spaced linear arrays of printed antennas is presented and thoroughly discussed in this paper. In order to account for parasitic mutual coupling between array elements, a dedicated optimization procedure in combination with a multiport network approach is adopted. Selected examples are included in order to assess the effectiveness and versatility of the proposed technique.

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Multiport network approach for modeling the mutual coupling effects in microstrip patch antennas and arrays

Cited by 36 publications

References 9 publications

Modeling of mutual coupling of arbitrary order in coupled circuits and array antennas

Modeling of mutual coupling of arbitrary order in coupled circuits and array antennas

MULTIPORT NETWORK MODELING APPROACH FOR CAD OF MICROSTRIP PATCHES–Invited Paper

A Hybrid Deterministic/Metaheuristic Synthesis Technique for Non-Uniformly Spaced Linear Printed Antenna Arrays

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