An Analysis Of DS-UWB Vivaldi Antenna With Low Radar Cross Section (RCS) For Stealth Purposes

Wan Nur Aqilah, Wan Ahmad Khairuddin (2014) An Analysis Of DS-UWB Vivaldi Antenna With Low Radar Cross Section (RCS) For Stealth Purposes. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 pages) An Analysis Of DS-UWB Vivaldi Antenna With Low Radar Cross Section (RCS) For Stealth Purposes 24 Pages.pdf - Submitted Version Download (757kB)

Abstract

This project was executed in order to design DS-UWB Vivaldi Antenna with Low Radar Cross Section (RCS) for Stealth Purposes at frequency between 6GHz-10GHz. The antenna was designed by considering the ideal requirements of a wireless antenna which is lightweight, small in size, low profile and can be used off-ground for the ease of mobility. Vivaldi antenna is a planar travelling wave antenna with endfire radiation which antenna consists of radiating and feed structure. Various types of radiating structure have been discussed included tapered slot Vivaldi antenna, antipodal Vivaldi antenna and balanced antipodal Vivaldi antenna. For the final design, the radiating structure was designed by using antipodal Vivaldi antenna. In the last part of this work, the optimum designs of Vivaldi antenna were fabricated and measured. The antenna were simulated by using CST Microwave Studio and fabricated on FR4 board. From the simulation and measurement results obtained, both antennas could operate efficiently at the designated frequency with return loss less than -10dB. The gain of Vivaldi antenna are 4.747dB respectively.

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