Design Optimization of UWB Microstrip Antenna Based on Fractal Koch Structure for C-Band and X-Band Satellite Communication System

Satellite is still one of among the most utilized mediums in communication system. This paper presents an optimized antenna design, suitable to be used as a feed in pair with a parabolic dish reflector. Fractal Koch patch structure in combination with pyramidal ground plane structure is analyzed and implemented. Based on measurement result, the proposed design can operate at 3.4–11.4 GHz with gain of about 3.9 dBi at the center of the band. The measured radiation pattern shows a bi-directional coverage, which is agreed with the simulation. These results support the possibility to employ the proposed design as an antenna feed in C-band and X-band satellite communication system.