A waveguide-based aperture-coupled patch amplifier array-full-wave system analysis and experimental validation

Yakovlev, Alexander B.; Ortiz, S.; Ozkar, M.; Mortazawi, Amir; Steer, M.B.

doi:10.1109/22.899032

Cited by 30 publications

(19 citation statements)

References 20 publications

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“…Using equation (5) and the expressions of Appendix B, one can obtain the characteristic Green's functions for the DGFs of the electric type, published in [14]. Consequently, we were able to verify the accuracy of our new numerical code by using it to obtain the same results as we previously obtained in [14][15][16]. at (x , y , z ) = (0.5a, 0.5b, 0).…”

Section: Numerical Results and Discussionsupporting

confidence: 66%

“…x , (15) and (16), one obtains the following system of equations for the four key unknown coefficients,  (14) are obtained from (15) and (16). Note that the presented procedure holds for cavities and infinite waveguides as well as semi-infinite waveguides terminated from either side.…”

Section: (Is)mentioning

confidence: 99%

“…2. This is a generalized case of the module investigated in [15,16]. An arbitrarily-shaped metallization S m (electric layer) and apertures S a (magnetic layer) in a ground plane are placed at the interfaces of adjacent dielectric layers at z = z s and z = z n , respectively.…”

Section: Integral Equation Formulationmentioning

confidence: 99%

“…1). Narrowband resonant rectangular slot antennas used in earlier designs [15,16] are replaced by meander-slot antennas and their modifications [17,18], in order to increase the frequency bandwidth and efficiency of the system. The paper is organized as follows.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic Potential Green's Dyadics of Multilayered Waveguide for Spatial Power Combining Applications

Lukić¹,

Yakovlev²

2002

PIER

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Abstract-Integral equation formulation and magnetic potentialGreen's dyadics for multilayered rectangular waveguide are presented for modeling interacting printed antenna arrays used in waveguidebased spatial power combiners. Dyadic Green's functions are obtained as a partial eigenfunction expansion in the form of a double series over the complete system of eigenfunctions of transverse Laplacian operator. In this expansion, one-dimensional characteristic Green's functions along a multilayered waveguide are derived in closed form as the solution of a Sturm-Liouville boundary value problem with appropriate boundary and continuity conditions. A method introduced here is based on the transmission matrix approach, wherein the amplitude coefficients of forward and backward traveling waves in the scattered Green's function in different dielectric layers are obtained as a product of transmission matrices of corresponding layers. Convergence of Green's function components in the source region is illustrated for a specific example of a two-layered, terminated rectangular waveguide.

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Section: Numerical Results and Discussionsupporting

confidence: 66%

Section: (Is)mentioning

confidence: 99%

Section: Integral Equation Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Magnetic Potential Green's Dyadics of Multilayered Waveguide for Spatial Power Combining Applications

Lukić¹,

Yakovlev²

2002

PIER

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“…The EM algorithm for complete modeling of the amplifier array was described in detail in [8]. In particular, an integral equation formulation for the induced electric and magnetic currents discretized via the method of moments was developed for a waveguideto-aperture-coupled patch array, resulting in the GSM of the N-port spatial power divider/combiner.…”

Section: Em Admittance Matrix Modelmentioning

confidence: 99%

Global coupled EM-electrical-thermal simulation and experimental validation for a spatial power combining MMIC array

Batty

Christoffersen

Yakovlev

et al. 2002

IEEE Trans. Microwave Theory Techn.

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Abstract-The first fully coupled electromagneticelectro-thermal global simulation of a large microwave subsystem, here a whole spatial power combining MMIC array, is described. The modeling effort is supported by parallel developments in electro-optic and thermal measurement. The CAD tools and experimental characterisation described, provide a unique capability for the design of quasi-optical systems and for the exploration of the fundamental physics of spatial power combining devices.

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Distributed Amplifiers

Ishii¹

2005

Encyclopedia of RF and Microwave Engineering

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The objective of this article is to present various aspects of distributed amplifiers. Distributed amplifiers are by definition, electronic amplifiers consisting of distributed circuit parameters. However, in practice, amplifier systems that consist of a number of discrete amplifiers associated with distributed parameter circuits are often termed distributed amplifiers; this latter amplifier is actually a pseudodistributed amplifier.

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A waveguide-based aperture-coupled patch amplifier array-full-wave system analysis and experimental validation

Cited by 30 publications

References 20 publications

Magnetic Potential Green's Dyadics of Multilayered Waveguide for Spatial Power Combining Applications

Magnetic Potential Green's Dyadics of Multilayered Waveguide for Spatial Power Combining Applications

Global coupled EM-electrical-thermal simulation and experimental validation for a spatial power combining MMIC array

Distributed Amplifiers

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