4.2GHz compact collinear antenna for manpack satellite communication

This paper presents the development of 4.2GHz compact collinear antenna for manpack satellite communication. The antenna is expected to be an alternative replacement for manpack communication with satellite which typically uses a type of antenna with small parabolic reflector. The proposed antenna is constructed of 10 radiator stubs and its parameters are investigated to achieve the optimum design including resonant frequency, working bandwidth, gain and radiation pattern. Post fabrication process, the characteristics of realized collinear antenna are measured experimentally to be compared with the design results. It is demonstrated that the propagation characteristics of realized collinear antenna are coincided qualitatively with the simulated ones. The result shows that the realized collinear antenna has the measured gain of 4.62dBi comparable to the simulated result of 4.39dBi.