New Antenna Array Architectures for Satellite Communications

Natera, Miguel Alejandro Salas; Aguilar, Andres G.; Cueva, Jonathan Mora; Fernández, José M.; Torre, Pablo Padilla de La; Trujillo, Javier García-Gasco; Rodríguez-Osorio, Ramón Martínez; Sierra‐Pérez, M.; Ariet, Leandro de Haro; Castañer, Manuel Sierra

doi:10.5772/22487

Cited by 9 publications

(6 citation statements)

References 26 publications

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“…Low-profile integrated antennas are demanded to be small [1]. In order to reduce the size of the antenna or to increase the working frequency band, high-permittivity substrates are used.…”

Section: Introductionmentioning

confidence: 99%

EBG Size Reduction for Low Permittivity Substrates

Exposito-Dominguez¹,

Fernández-González²,

Padilla³

et al. 2012

International Journal of Antennas and Propagation

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Double layer and edge-location via techniques are combined for electromagnetic band gap (EBG) size reduction. The study of the required number of elements and their dimensions is carried out in order to suppress the surface wave propagation modes and consequently to reduce the mutual coupling between radiating elements in low-permittivity substrates. By applying these techniques, the size of the EBG mushroom is reduced by 30%; however, the bandwidth operation maintains its value, and these structures can be integrated between radiating elements in broad bandwidth antennas.

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“…Low-profile integrated antennas are demanded to be small [1]. In order to reduce the size of the antenna or to increase the working frequency band, high-permittivity substrates are used.…”

Section: Introductionmentioning

confidence: 99%

EBG Size Reduction for Low Permittivity Substrates

Exposito-Dominguez¹,

Fernández-González²,

Padilla³

et al. 2012

International Journal of Antennas and Propagation

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“…These needs will be faced with new technologies and new architectures for Deep Space missions [4], as well as for Low Earth Orbit (LEO), Medium Earth Orbit (MEO), and Geostationary (GEO) satellites [5], [6], GEODA is a novel concept of active antenna arrays for LEO satellite tracking in 1.7 GHz [7]. The antenna is formed by 60 triangular panels positioned over a dome with a cylindrical base [ Fig.…”

Section: Introductionmentioning

confidence: 99%

Calibration Proposal for New Antenna Array Architectures and Technologies for Space Communications

Natera

Rodríguez-Osorio

Ariet

et al. 2012

Antennas Wirel. Propag. Lett.

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Abstract-In large antenna arrays with a large number of antenna elements, the required number of measurements for the characterization of the antenna array is very demanding in cost and time. This letter presents a new offline calibration process for active antenna arrays that reduces the number of measurements by subarray-level characterization. This letter embraces measurements, characterization, and calibration as a global procedure assessing about the most adequate calibration technique and computing of compensation matrices. The procedure has been fully validated with measurements of a 45-element triangular panel array designed for Low Earth Orbit (LEO) satellite tracking that compensates the degradation due to gain and phase imbalances and mutual coupling.

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“…A m e jα mn (1) where A m is the input signal at port m and α mn is the phase difference between input ports. In this work, a Butler matrix with four inputs and four outputs has been designed.…”

Section: Butler Networkmentioning

confidence: 99%