Open Access
Redes de alimentación de agrupaciones basadas en CORPS
(2006) Betancourt Quiñones, Diego; Río Bocio, Carlos del; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
A new beam-forming Network concept is introduced. This Network is based in the design principles of CORPS. The new proposed structure presents an improvement in design over the traditional beam-forming Network -BFN since, with this kind of feed networks, is feasible to reduce the number of the Phase Shifters of N:1. Two implementations, based on Gysel Power Dividers, are also showed to corroborate the theoretical concepts.
Open Access
Designing feeding networks with CORPS: coherently radiating periodic structures
(2006) Betancourt Quiñones, Diego; Río Bocio, Carlos del; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
The design of feeding networks in phased array systems results tricky since all the complex excitations should be provided to all the radiating elements of the system. Where the number of radiating elements increases the complexity of the feeding network also increase significantly. In this paper we study the possibility to apply the concepts of CORPS structures to the feeding network, obtaining a general feeding network design where the excitations should be introduced before the network and not after, reducing strongly the number of phase shifters and attenuators needed to electronically scan the beam.
Open Access
Using CORPS-BFN to feed multibeam antenna systems
(2007) Betancourt Quiñones, Diego; Río Bocio, Carlos del; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
In this paper, a simple example of application of the CORPS-BFN concept has been presented. A multibeam antenna system is seen as a small part of the human eye, and therefore, improving the similarity of the whole system with the human eye, the main features of the system could be also improved.
Open Access
Coherently radiating periodic structures (CORPS) and the human eye: working principle
(2005) Betancourt Quiñones, Diego; Ibáñez Loinaz, Asier; Río Bocio, Carlos del; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
In this paper a new philosophy to design antenna systems is presented. It is based on the recently proposed Coherently Radiating Periodic Structures (CORPS). These structures are essentially a periodic structure which all the elements are radiating elements coupled coherently (in-phase). The working principle of these structures is quite similar that the working principle of the photoreceptors of the human eye detecting images, opening the possibilities to define high resolution artificial visual systems.
Open Access
A general beam-forming network made with CORPS
(2006) Betancourt Quiñones, Diego; Río Bocio, Carlos del; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
A new beam-forming network concept is introduced. This network is based in the design principles of CORPS. The new proposed structure presents an improvement in design over the traditional beam-forming network since, with this kind of feed networks, is feasible to reduce the number of the Phase Shifters of N:1. Two implementations, based on Gysel Power Dividers, are also showed to corroborate the theoretical concepts.
Open Access
Designing antenna systems with CORPS (coherently radiating periodic structures)
(2005) Betancourt Quiñones, Diego; García Esparza, Raúl; Ibáñez Loinaz, Asier; Río Bocio, Carlos del; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
In this paper a new philosophy to design antenna systems is presented. It is based on the recently proposed Coherently Radiating Periodic Structures (CORPS). These structures are essentially a periodic structure which all the elements are radiating elements coupled coherently (in-phase). This principle could allow the designer to simplify the needed feeding network for many array antenna systems since some elements could be coupled from the neighbouring ones, keeping the original excitation profile. It will be also shown in this paper how the three dimensional version of CORPS could be understood as a focusing planar lens, since it is possible to distribute the information of one element to many radiating elements by using the coherent coupling mechanism between all the elements of the whole structure. With this configuration, many directive beams could be really close to each other, increasing the possibilities to handle high resolution in imaging systems.
Open Access
Utilizando CORPS-BFN para alimentar sistemas de antenas de múltiples haces
(2007) Betancourt Quiñones, Diego; Río Bocio, Carlos del; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
This paper present an application of the Coherently Radiating Periodic Structures - CORPS on the design of a Beam Forming Network -BFN. The Named CORPS-BFN is a novel feeding network with special behaviour characteristics that allows several improvements compared with classical feeding networks, such as, the reduction of necessary electronic to control a phased array and the possibility to have several beams very close to each other. In this paper, an analytical comparison of CORPS-BFN with both a Horn Antenna Array and a uniformly field distribution antenna will be analyzed. This study shows how applying this technology to a Multibeam antenna system the area necessary to radiate 7 independent beams can be drastically reduced.
Open Access
Mejora de las características de antenas usando superestratos parche-slot-parche (PSP)
(2005) Betancourt Quiñones, Diego; Ibáñez Loinaz, Asier; Río Bocio, Carlos del; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
In this paper the novel Patch-Slot-Patch (PSP) structure is presented. The frequency resonate characteristics of this structure are calculated and measured. Gain enhancement of 15 dB is obtained for PSP structure as Superstrate of a microstrip patch antenna. A grating lobe reduction of more than 16 dB is observed for a PSP structure applied over a 3x1 linear array.
Open Access
Meta-material behaviour of the new Coherently Radiating Periodic Structures (CORPS)
(2005) Betancourt Quiñones, Diego; Ibáñez Loinaz, Asier; García Esparza, Raúl; Río Bocio, Carlos del; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
In this paper, the study of the new Coherently Radiating Periodic Structures (CORPS) like a Metamaterial sets out. The shape of the structure under study is composed by two different layers, one layer is an array of square metallic patches and the other layer is an array of cross shaped slots. All the elements of each layer are placed in a rectangular lattice grid of lg, ensuring coherent coupling between elements of the same layer being this the main feature of the Coherently Radiating Periodic Structures (CORPS). To built up the whole structure, a total number of three layers (patches-slots-patches) are stacked and separated by dielectric slabs of either 10.2 or 1.0006 (air) of permittivity. The simulations were done using MoM and Finite Elements Method (i.e. Ansoft Designer and HFSS respectively).
Open Access
Coherently radiating periodic structures (CORPS): aplicaciones prácticas
(2005) Ibáñez Loinaz, Asier; Betancourt Quiñones, Diego; Río Bocio, Carlos del; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
In this paper some possible applications of the new philosophy to design antenna systems based on the Coherently Radiating Periodic Structures (CORPS) is presented. This principle could allow the designer to simplify the needed feeding network for many array antenna systems since some elements could be coupled from the neighbouring ones, keeping the original excitation profile. It will be also shown in this paper how the three dimensional version of CORPS could be understood as a focusing planar lens, since it is possible to distribute the information of one element to many radiating elements by using the coherent coupling mechanism between all the elements of the whole structure. With this configuration, many directive beams could be really close to each other, increasing the possibilities to handle high resolution in imaging systems.