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Paper describes the electromagnetic performance of compact-size dielectric lenses typically used as building blocks for integrated lens antennas operating at the microwave to optical ranges. Three configurations of lenses are studied, namely: multi-shell spherical, extended hemielliptical, and shaped ones. Although lenses are usually considered as wideband devices whose operation principles are based...
This paper presents a two-step design methodology with a 2-D modelling approach based on FDTD and Genetic Algorithms to synthesise flat lenses for beam shaping applications. This methodology has been applied to design flat lenses radiating a stable flat-top beam over a 10% bandwidth in H-plane and a nearly omni-directional radiation in E-plane. The results are validated numerically and experimentally...
This paper presents design, fabrication and characterization of a millimetre-wave lambda/4-patch antenna on a benzocyclobutene (BCB) polymer. This antenna is compatible with a wafer level packaging for a miniaturized wireless communication system. All components of this antenna are manufactured by using a gold electroplated and a BCB polymer patterned by a photolithography. The implemented antenna...
This paper presents design, fabrication and characterization of a 60 GHz quarter-wave patch antenna based on a benzocyclobutene polymer. The design was made using Ansoft HFSS software. The patch and ground plane size are adjusted to have a desired resonant frequency. The fabrication was realized with BCB multiple coating and metallization on pyrex glass #7740. The implemented antenna size was 2.5...
The electromagnetic synthesis and optimization of microwave focusing systems requires the development of specific CAD tools with appropriate characteristics (accuracy, computation time, etc.). The purpose of this paper is to benchmark two 2D numerical methods, namely the method of auxiliary sources (MAS) and the finite-difference time-domain (FDTD) technique. Several relevant test structures (integrated...
This paper presents a design, fabrication and characterization of a 60 GHz lambda/4-patch antenna compatible with a benzeocyclobutene polymer packaging. The patch and ground plane size are adjusted to reduce the antenna size for matching to the package size. The designed size was 2 times 2 times 0.05 mm3. Using electromagnetic simulation, the proposed antenna was optimized by investigating the resonance...
This paper presents a design, fabrication and characterization of a 60 GHz lambda/4-patch antenna compatible with a benzeocyclobutene polymer packaging. The patch and ground plane size are adjusted to reduce the antenna size for matching to the package size. The designed size was 2times2times0.05 mm3. Using electromagnetic simulation, the proposed antenna was optimized by investigating the resonance...
This paper describes a lens shaping optimization tool combining a genetic algorithm (GA) and a 2-D FDTD solver. This CAD tool has been implemented to synthesize two kinds of integrated lens antennas (ILAs), namely: 1) reduced-size ILAs with flat-top radiation patterns (in TM mode), and 2) compact ILAs with high aperture efficiency (in TE mode). In the first case, several optimization strategies are...
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