Design of a Small and Low-Profile 2<tex>$,times,$</tex>2 Hemispherical Helical Antenna Array for Mobile Satellite Communications

2004 ◽  
Vol 52 (1) ◽  
pp. 346-348 ◽  
Author(s):  
H.T. Hui ◽  
E.K.N. Yung ◽  
C.L. Law ◽  
Y.S. Koh ◽  
W.L. Koh
Keyword(s):  
Antenna Array ◽  
Satellite Communications ◽  
Helical Antenna ◽  
Low Profile ◽  
Mobile Satellite

scholarly journals Low-Profile Dual Circularly Polarized Antenna Array for Satellite Communications in the X Band

2012 ◽  
Vol 60 (5) ◽  
pp. 2276-2284 ◽  
Author(s):  
Andrés Garcia-Aguilar ◽  
José-Manuel Inclan-Alonso ◽  
Lucía Vigil-Herrero ◽  
José-Manuel Fernandez-Gonzalez ◽  
Manuel Sierra-Perez
Keyword(s):  
Antenna Array ◽  
Satellite Communications ◽  
Circularly Polarized ◽  
Low Profile ◽  
X Band

scholarly journals Antenna Array Based on Fabry–Perot Cavity with Mechanoelectrical Beam Steering

2021 ◽  
Vol 24 (5) ◽  
pp. 36-49
Author(s):  
Y. A. Litinskaya ◽  
S. V. Polenga ◽  
Y. P. Salomatov
Keyword(s):  
Antenna Array ◽  
Satellite Communication ◽  
Beam Steering ◽  
Fdtd Method ◽  
Scanning Angle ◽  
Low Profile ◽  
Fabry Perot ◽  
Directional Characteristics ◽  
Mobile Satellite ◽  
Antenna Systems

Introduction. Introduction. Low-profile effective antenna systems (AS) with maintained directional characteristics in a wide sector of scanning angles are required for satellite communication at mobile objects. This article investigates the directional characteristics of a subarray based on a Fabry–Perot cavity and an antenna array with mechanoelectrical beam steering.Aim. To investigate a Fabry–Perot based antenna array with mechanoelectrical beam steering and to estimate its gain and directivity at different scanning angles.Materials and methods. Computer simulations were carried out using the finite element method (FEM), finite difference time domain (FDTD) method and template based post-processing.Results. A subarray based on a Fabry–Perot cavity for an antenna array with mechanoelectrical beam steering was simulated. The efficiency of the subarray comprised at least 65 % in the 11.9…12.5 GHz frequency band. An antenna array based on a Fabry–Perot cavity with mechanoelectrical beam steering was developed and investigated. The calculated characteristics of the developed antenna array agreed well with those obtained experimentally. The gain degradation did not exceed 2.5 dB in the 0…70° scanning angle range. The advantages of using antenna elements based on a Fabry–Perot cavity and developing on their basis mobile satellite antenna systems with wide-angle scanning are noted.Conclusion. The use of a radiator based on a Fabry–Perot cavity and the development on it basis an antenna array with mechanoelectrical beam steering provides an antenna efficiency of no less than 0.5 with a gain degradation of no more than 2.5 dB in the scanning angle range 0…70° from 11.9 to 12.5 GHz.

Low-profile Ku-band array antenna for broadband mobile satellite communications

2011 ◽  
Author(s):  
Ferdinando Tiezzi ◽  
Stefano Vaccaro ◽  
Daniel Llorens del Rio ◽  
Cesar Dominguez Grano de Oro ◽  
Manuel Fajardo Rua
Keyword(s):  
Satellite Communications ◽  
Array Antenna ◽  
Low Profile ◽  
Mobile Satellite ◽  
Ku Band
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