The novel coaxial monopole antenna design with an additional metal screen is presented.The radiation char- acteristics of this antenna are investigated depending on a dis- tance between the ground Door Seal plane and additional metal screens, as well as on a size of the latter.Measured and calculated ra- diation patterns are compared within limits of the operative frequency band and their revealed distinctions are discussed.
The antennas characteristics allow pronounce that it Seat Post Ring can be considered as a promising candidate for various practical ap- plications both a single radiator and a composite element of antenna arrays.