A novel circularly polarized, broad band, wide beam microstrip patch antenna is presented in this letter. The measured impedance bandwidth is 44.3% by using L-shaped probe-fed technique. This bandwidth can cover GPS, Galileo, and GLONASS satellite navigation frequency bands. Traditional printed circuit techniques are abandoned in this design, and the novel design of radiating metallic copper patch embedded in the dielectric holder is introduced in this work. Therefore the reliability of this antenna has been improved and it can be used for airborne navigation terminal with better environmental and mechanical performance.
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