Analysis of Multilayer Amplifier Structure by an Efficient Iterative Technique

Micro & Optical Tech Letters

2018

A reconfigurable frequency selective surface (FSS) is presented based on a nonuniform and finite array of square loop conducting patches printed on a dielectric substrate. The reconfigurability is performed changing the polarization of PIN diodes in the patch elements of the FSS array, from OFF to ON state and vice versa. Simulation is performed by the wave concept iterative procedure (WCIP) formulation and Ansoft HFSS package. Remarkably, a generalization of the WCIP method is proposed to solve scattering problems on FSS structures composed of nonuniform and finite arrays. Prototypes are fabricated for comparison purpose. Simulations and measurements show that the nonuniform and finite FSS has dual band behavior and stable frequency response for different angles of the incident plane wave. A very good agreement between HFSS simulation, WCIP formulation, and experimental results is verified.

“…The tangential component of the electric field,

{\overset{E}{true}}_{i}

, and the surface current density,

{\overset{J}{true}}_{i}

, are used to represent the incident and reflected waves on the FSS, as shown in Figure . The incident wave (

{\overset{A}{true}}_{i}

) and reflected wave (

{\overset{B}{true}}_{i}

) are described by the system of equations formed by (1) and (2),

{\overset{A}{true}}_{i} = \frac{1}{2 \sqrt{Z_{01}}} true({\overset{E}{true}}_{i} + Z_{01} {\overset{J}{true}}_{i} true)

{\overset{B}{true}}_{i} = \frac{1}{2 \sqrt{Z_{01}}} true({\overset{E}{true}}_{i} + Z_{01} {\overset{J}{true}}_{i} true)

where Z 0 i is the characteristic impedance of medium…”

Section: Wcip Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reconfigurable and stable frequency selective surfaces on nonuniform and finite arrays

Micro & Optical Tech Letters

2018

“…The WCIP method is a full-wave iterative method whose formulation is based on the electromagnetic wave concept [9][10][11][12][13][14]. It is a method that has been widely used by many researchers worldwide in the analysis of different types of microwave circuits such as antennas, filters, and frequency selective surfaces (FSS), including printed circuits on textile substrates, as presented in recent studies [13,14].…”

Section: Wcip Formulationmentioning

confidence: 99%

“…Results for resonant frequency, bandwidth, radiation pattern, and VSWR are obtained using the Wave Concept Iterative Procedure (WCIP). The WCIP is a full wave formulation that has been widely used in recent years in the analysis and characterization of various microwave circuits [9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Iterative Full-Wave Analysis of Mandelbrot-Inspired Fractal Patch Antenna on Textile Substrate for UWB Applications

International Journal of Antennas and Propagation

2017

This work presents the analysis of monopole microstrip antennas with truncated ground plane and patch geometry inspired on the Mandelbrot fractal curve for applications in UWB systems. The proposed antenna geometry is analyzed using the Wave Concept Iterative Procedure (WCIP), a full-wave method. Results for the proposed antenna operating frequency, bandwidth, VSWR, gain, and radiation pattern are obtained and discussed. The WCIP results are compared with simulation results provided by HFSS software, for validation purpose. In addition, a prototype antenna is built and measured. A good match between WCIP theoretical and simulation, HFSS simulation, and measurement results is observed for the antenna frequency response.

“…The analysis of the frequency responses of the develop filters is done using the wave concept iterative procedure (WCIP) method, an accurate and efficient full‐wave formulation, that does not require large amount of memory or matrix inversion, as other full‐wave methods. The WCIP method has been successfully proposed and used in the analysis and characterization of antennas, selective frequency surfaces (FSSs), and planar filters …”

Section: Introductionmentioning

confidence: 99%

Iterative full‐wave analysis of compact band‐pass filters with Mandelbrot inspired fractal patch geometries

Micro & Optical Tech Letters

2017

the ground clutters for airborne radar become near-stationary and are removed using multi-pulse canceling filters. Unlike STAP, this new ground target detection method allows airborne radar to effectively detect ground moving targets in clutter without clutter estimation. The performance of the proposed clutter suppression and target detection algorithm has been demonstrated by carrying out various simulations assuming a typical airborne radar moving target detection scenario. The simulation results show that ground clutters are eliminated from the radar signals when the proposed algorithms are applied, and ground moving targets are detected with simple MTI processing after clutter Doppler compensation. ORCID