UWB with Gain Enhancement Archimedean Spiral Microstrip Antennas for On-board Satellite Communications

Microstrip Archimedean spiral antenna is appropriate for wideband CubeSat communications because of its light weight and small size. This paper presents a spiral microstrip antenna designed on FR-4 substrate achieving an ultra-wide band covering all working satellite bands. The proposed antenna is characterized by high gain and directive beam with suitable radiations at multiple frequencies.