Parametric Study and Performance Analysis of PIFA Array Antenna At Ka-Band
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Date
2018-07
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AAU
Abstract
Planar inverted F-antenna are playing an important role in wireless communication systems
because of their many advantages like light weight, low profile, low cost, easy integration with
planar structure and easy fabrication. The main objective of this thesis is to discuss the
characteristics of PIFA antenna using different change of design parameters such as shortening
plate width, ground plane width ground plane length, patch width, and patch length and height.
The design issues include PIFA antenna dimensions, feeding techniques and various polarization
mechanisms whereas the performance issues include voltage standing wave ratio, radiation
pattern, directivity and specific absorption rate. In this thesis, both single element and four by
four elements of PIFA antenna at Ka-band are designed using the CAD-FEKO simulation
software. To design it, standard formulas are used to calculate different parameters of the
antenna. The proposed antenna is designed to work at 28GHz frequency band and simulation
results shows that 4.66 dB and 7.63dB of directivity for single element and four by four elements
of PIFA antenna were attained respectively and also SAR values of 2.26w/kg for single element
and 0.613w/kg for four by four elements design were attained. To achieve all the above results
both single element and planar array of PIFA antenna were designed with micro-strip line
feeding based on quarter wave impedance matching technique using CAD-FEKO simulation
software.
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Keywords
PIFA, Planar Array antennas, Ka-Band, Specific absorption rate