Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/107870
Title: QUAD-POLARIZATION WIDEBAND SINUOUS ANTENNA ELEMENTS AND ARRAYS
Authors: RAMANAN BALAKRISHNAN
Keywords: RF, microwave, antenna, array, wideband, polarization
Issue Date: 15-Aug-2014
Citation: RAMANAN BALAKRISHNAN (2014-08-15). QUAD-POLARIZATION WIDEBAND SINUOUS ANTENNA ELEMENTS AND ARRAYS. ScholarBank@NUS Repository.
Abstract: Modern antennas are increasingly being expected to perform multiple functions. The push to having fewer antenna elements, while also covering a larger number of tasks, has led to a huge demand for wideband, multi-function antennas. Sinuous antennas are chosen as the primary focus for this thesis to achieve quad-polarization, wideband performance while attempting to maintain a compact, low-profile shape. Traditional circular-polarization modes are presented together with new techniques for obtaining linear polarization from sinuous antenna elements. The study on sinuous elements is followed by development of (both uniform and variable-sized) phased arrays of these antennas. Connections between array elements are used as a technique to optimize the performance of large, planar arrays of sinuous antennas. Finally, a detailed comparison of the performance of sinuous and spiral antennas is presented to serve as a reference for future designs of such wideband arrays.
URI: http://scholarbank.nus.edu.sg/handle/10635/107870
Appears in Collections:Master's Theses (Open)

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