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 plane and additional Coffee Machine Descaler 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 can be considered as a promising candidate for various practical ap- plications both a single radiator and a composite element of SPST 24volt Relay antenna arrays.