Design of J Pole Antenna for GPS-based Radiosonde Receiver Station

The proposed antenna is suitable for a GPS-based Radiosonde Receiver Station. The receiver station antenna system consists of two antennas (directional antenna and omnidirectional antenna). The objective of the proposed work is to design and develop a J-pole antenna for Meteorological Applications. The proposed antenna in this paper is suitable for such application as this antenna has an RLBW of 37 MHz (379 - 416 MHz, 9.181%). The range of the meteorological band is 400 MHz to 406 MHz. The sufficient gain of the J pole antenna and omnidirectional radiation characteristics makes this antenna suitable for meteorological application. The proposed antenna must be lightweight, inexpensive, portable, and robust so that it can survive under extreme conditions. The material used for designing this antenna is copper pipe having 5mm OD (Outer diameter) and 1mm thickness.