Antennas are designed to radiate or receive electromagnetic waves in the part of
transmitting or receiving system. They are transducers which transform electric
energy into waves so as to radiate radio waves, that’s the primary purpose of
Utilizing the characteristics of helical antennae operating in the axial mode
including high directivity, broad bandwidth and circular polarization in satellite
communication (ex. GPS) is detailed described in this thesis.
The microwave dielectric ceramic material becomes very popular in satellite and
wireless communication in recent years because of its high-K, high-Q,and