Compact Multi-Band Rectangular Slotted Antenna For Global Navigation Satellite Systems (Gnss)

A compact multi-band rectangular microstrip antenna with two different slots suitable for future Global Navigation Satellite Systems (GNSS) applications is proposed. The antenna operates at multiple frequency bands which are L1, L2, L5 for GPS and G1 G2, G3 for GLONASS and E1, E6, E5a&E5b for GALILEO. The proposed antenna is excited by a microstrip feed line and has three frequency bands through loading an U-shaped slot and an inverted H-shaped slot. It achieved good performance within a large 3-dB beamwidth, which will enable the antenna to receive signals from several GNSS satellites. The obtained results of the return loss, radiation patterns and peak antenna gains are presented using computer simulations.