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The performance analysis of reflectarray resonant elements based on Finite Integral Method is presented in this work for 5G antenna systems. Reflection loss, bandwidth and linear phase range of square and circular resonant element configurations have been investigated at 15 GHz and 20 GHz frequencies. Periodic reflectarrays consisting of 5×5 elements have been designed at 20 GHz for both elements...
This article presents a design procedure of phase controlled linear adaptive array antenna operating at 38GHz for 5G application. The Wilkinson equal power divider/combiner feeding network is loaded with the antenna elements for equal power distribution. The Obtained gain of the antenna is 12dBi at the operating frequency of 38GHz. −15dB of isolation is observed between the array antenna elements...
This paper presents a thorough investigation of the relationship between reflection loss and dynamic phase distribution performance of three different reflectarray resonant elements. The tunability characteristics of rectangular, dipole and ring elements printed on grounded non-linear dielectric anisotropic substrates have been investigated at X-band frequency range using CST computer model. A detailed...
Properties of substrate material play an important role in the design of reflectarray antenna. In this work linear and non-linear dielectric properties of substrate materials are discussed thoroughly. Rogers RT/d 5880 and K-15 nematic are used as linear and non-linear dielectric materials respectively, to design different reflectarray resonant elements in X-band frequency range. Simulated and measured...
A planar microwave absorber based on the anisotropic properties of tunable reflectarray has been introduced in this paper. A non-linear liquid crystal material along with polystyrene foam has been designed to analyze X-band microwave absorption performance of three different reflectarray resonant elements. A thorough investigation based on finite integral method has been performed to investigate the...
Reflectarray antennas provide a low cost, low volume and low profile way for different type of applications but due to limited phase ranges and high reflection loss performance their use is limited in the field of satellite and earth observatory systems. In this paper a rectangular patch reflectarray operating at 10 GHz constructed on 1mm thick isotropic and anisotropic substrates is proposed to be...
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