Antenova (United Kingdom)

impedance bandwidth, 27 accuracy (of fix), 187-8, see also precision of fix actual reflection environment, 128 Aeronautical Radio, 15 angular density function, 114 antenna(s) active, 185-7 external, 186 Galileo, 41-51 GPS III, 42 groundplane-free, 197 helical, 42, 48 internal, 186 inverted-F, see IFA linearly polarised, 184 on-ground, 197 patch, see patch antenna PIFA, see PIFA unbalanced, 183, 192

This paper presents an optimised design of a broadband dielectric loaded planar m ple, the design is optimised to achieve a smaller dielectric size and an even wider impedance bandwidth. The bandwidth of the optimized antenna is up to 63%, covering four frequency bands, DCS 1800, PCS 1900, WCDMA 2100 and IEEE802.11 2400, using a smaller dielectric (ceramic) pellet, which is only 70% of the original one.