TITLE:
Design and Construction of Axial Mode Mono-Filar Helical Antenna for Hydrogen Line Emission Studies with 4NEC2 Tool
AUTHORS:
Emmanuel Okpanachi Musa, Ikechukwu Anthony Obi, Eugene Anibe Idogbe, Jacob Okpe Ali, Cyril Osamhonyi Ogbeiwi, Prosper Chukwuebuka Chukwuka, Ndubuisi Francis Eze
KEYWORDS:
Helical Antenna, Hydrogen Line, 4NEC2, Perspex Glass, Offset Parabolic Dish
JOURNAL NAME:
Open Journal of Antennas and Propagation,
Vol.10 No.3,
September
20,
2022
ABSTRACT: Antennas have come to play a significant role in the reception and
transmission of electromagnetic radiation or
signals which in turn have improved scientific research in the various
areas where they have been used. Astronomy is not left out; as a study of
everything beyond earth’s atmosphere, useful signals have to travel great
distances to reach us. Hence the need for equipment to detect such signals. The Helical Antenna is known to possess high gain (directivity) and can process signals with any type of orientation/polarization
which implies high sensitivity hence the desire to use it. Simulation was done
using the legacy 4NEC2 software. The purpose of this paper is to design a
circularly polarized helical antenna operating in axial mode that is suitable
for detection of neutral hydrogen line emission at the frequency of 1420 MHz and
to show how it can be used as a feed for an off-set parabolic dish.