We present an analysis of mutual coupling effects on radiation pattern and individual coupling in a conformal array of cross rhombic antennas. Analysis is made using both full-wave simulation and numerical approaches implemented in Matlab. The array consists of a truncated hexagonal pyramid, with a cross rhombic antenna in each pyramidal face, including the one on the top, having a 7-antennas-array. Results of radiation pattern and S11 parameters are presented, showing mutual coupling effects among the elements.

This study is motivated by the need to give the reader a broad view of the developments, key concepts, and technologies related to information society evolution, with a focus on the wireless communications and geoinformation technologies and their role in the environment. Giving perspective, it aims at assisting people active in the industry, the public sector, and Earth science fields as well, by providing a base for their continued work and thinking.

We present design and construction results of a 2.4 Ghz cross rhombic antenna to be used in a cubesat. Computational design agrees with experimental results after its construction. cross rhombic antenna is a novel planar structure of our own design, presenting circular polarization and medium gain; it is built over a RF60A substrate withεr=6.15, decreasing its size to fit the required dimensions of satellite. A special characteristic of this design is the enhancing of operational bandwidth using a technique we have been studying, related to softening the structures with sharp edges. Results show applicability and success of our technique.

Slot antennas are widely used devices in microwave communications, especially when they are used as arrays, one of its applications are as WiFi antennas. We present the analysis of a slot antenna using the Finite Difference Time Domain Method (FDTD). The FDTD method is an easy way to analyze complex structures; the theoretical analysis of a slot antenna supposes the slots are impressed over an infinite plane, missing the effect of the scattered fields in the waveguide sides, as the FDTD simulates the electromagnetic field, considering the media characteristics point by point, is possible to see its behavior in a more exactly way. The application example is a 9 element resonant array designed using the Chebyshev technique to reduce side lobes, antenna behavior was analyzed and then constructed; the results show a good agreement between both, simulation and experiment.

The parametric analysis of the electrical conductivity distribution for the Perfect Matched Layer (PML) method, is discussed in this communication. The Berenger’s PML defines a new computational space around the area of interest yielding to reduce any undesirable reflection that may perturb the main computational domain. The optimal parameters values for the conductivity distribution are obtained in order to provide lower levels of reflection, given raise to model infinite electromagnetic propagation spaces and as a consequence, to optimize the computing resources.