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The design of planar arrays providing full azimuthal scanning coverage for skywave radar applications is considered in this work. The main objective is to simultaneously achieve a given beamwidth in any scanning direction and a given peak SLL in a specified subdomain of the visible region, while minimizing the number of required radiating elements. The capability of certain deterministic aperiodic...
A coaxial microwave applicator radiating in a liquid medium contained inside a chemical reactor is described. The applicator consists of an insulated asymmetrical dipole antenna that radiates almost isotropically. Hence, it appears well suited to directly heat the medium that fills the vessel, making it unnecessary to use a microwave oven as currently done in microwave assisted chemistry. The electromagnetic...
Possible advances of multistatic radar systems are considered for surveillance of limited and critical areas for homeland protection. New enabling technologies are highlighted by referring to the use of multiparametric multichannel multistatic radar receivers densely distributed over the area of interest. In such a framework, specific focus is given to evaluating target visibility as well as to the...
A novel dual-polarized microstrip patch array with a low-loss hybrid feed network suitable for X-band polarimetric airport surveillance radars (ASRs) is presented. A waveguide feed is used to excite a number of linear subarrays consisting of aperture-coupled microstrip cross-patch elements connected in series. The microstrip radiating part implements the dual polarization capability with low cross...
A novel dual-polarized microstrip patch array with a low-loss hybrid feed network suitable for X-band polarimetric airport surveillance radars (ASRs) is presented. A waveguide is used to excite a number of linear subarrays consisting of aperture-coupled microstrip cross-patch elements connected in series. The microstrip radiating part implements the dual polarization capability with low cross polarization,...
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