Abstract

PEREZ MOLINET, Ailén; SANDIANES GALVEZ, José R.  and  VILLAR LEDO, Leslye. Alghorithm of near field transformation to far field in planes coordinates. EAC [online]. 2017, vol.38, n.3, pp. 47-55. ISSN 1815-5928.

The standard measurements of far-field antennas are difficult to implement for large antennas, since the measurement distance between the measuring antenna and the probe may become too large to place it within a range of actual test. However, it is necessary to make the measurement in this region because important parameters of antennas are determined as radiation pattern. These measurements can then be performed in the near field that provides a method for determining, through the use of processing techniques, the basic parameters of an antenna under test (AUT). The use of a software, in this case MATLAB, allows the simulation of far field behavior and prove the accuracy of the model from a near field measurement. This work is to implement an algorithm for planar coordinate transformation. His development is linked to researching of Radiopropagation group in Telecommunications and Telematics Department. This is the researching aims to contribute to the design of the anechoic chamber in CUJAE and in the use of the method that transforms near-field results (measured inside the chamber) to far field. The work has been validated with a known radiation pattern as is from a pyramidal horn.

Keywords : near field; far field; anechoic chamber.

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