Summary
International Symposium on Antennas and Propagation
2009
Session Number:3F3
Session:
Number:3F3-5
Near Field Measurement Simulation Using Planar Surface
Eko Tjipto Rahardjo, Fitri Yuli Zulkifli, Catur Apriono, Adrian Andaya Lestari,
pp.1187-1190
Publication Date:2009/10/21
Online ISSN:2188-5079
Summary:
It is well known that implementing antenna measurement test range require large real estate and high cost. In limited space availability, as in our Department, however require near field measurement facility in order to measure large antenna system. Therefore to overcome this problem, we plan to build near field measurement system. There are three near field methods known which are: the planar, cylindrical and spherical surfaces [1]-[3]. The design of the near field method with planar surface is proposed due to the advantages of the formula and computation process simplicity compared with the other near field surface methods. Although this planar surface method is not an accurate method, this planar surface method can be used well to predict measurement of the antenna’s radiation pattern. The near field antenna measurement method conducted by [4] and [5] uses the planar surface method to transform the near field to far field measurement. Both [4] and [5] measured near field measurements and transformed it to far field measurement results. The transformation result of the near field measurement is than compared to the far field measurement, which is also measured. In this paper, the measurement simulation program is developed and implemented to transform near field data to far field data. The developed near field to far field transformation program is compared to far field measurement simulation using Ansoft HFSS version 11.1.1. The comparison of the developed transformation program with HFSS program is than discussed.