Patent ID: 7633459

Claim:
A dielectrically loaded antenna for operation at a frequency in excess of 200 MHz comprising: an electrically insulative core of a solid material having a relative dielectric constant greater than 5 and having transversely extending end surfaces and a side surface which extends longitudinally between the end surfaces; a three-dimensional antenna element structure including at least a pair of elongate conductive antenna elements disposed on or adjacent the side surface of the core and extending from one of the end surfaces towards the other end surface; a feed connection comprising first and second feed connection conductors coupled respectively to one and the other of the elements of the said pair; and a matching section comprising a laminate board having at least two insulative layers and at least three conductive layers, arranged alternately to provide at least one shunt capacitance, wherein each conductive layer comprises a first portion, each first portion being a conductor of the shunt capacitance, formed by said layers and coupled across the antenna elements of the pair.