Patent ID: 9112273
Filing Date: 2015-08-18
Classification: H01Q

Abstract:
1. An antenna assembly for operation at a frequency in excess of 200MHz, comprising the combination of a dielectrically loaded antenna and a housing, the housing incorporating a connector for coupling the antenna to host equipment, wherein: the antenna comprises an insulative core which has an outer surface and is shaped to define a central antenna axis, at least one conductive element on or adjacent the core outer surface, and a laminate board on the central axis, the outer surface of the core including proximal and distal surface portions oriented transversely with respect to the axis and a side surface portion surrounding the axis and extending between the proximal and distal surface portions, and the laminate board extending proximally from the proximal core surface portion; the housing comprises a housing body which forms a hollow conductive shield for the laminate board, and is centred on the antenna axis, the housing body having a distal recess which is bounded by a distal housing rim and is shaped and dimensioned to house a proximal portion of the antenna with the distal rim surrounding and engaging the side surface portion, a side wall which extends proximally from the housing rim to surround the axis thereby to enclose an interior space containing the laminate board, and a proximal connector portion housing a signal contact insulated from the conductive shield and connected to a signal conductor of the laminate board; and the housing is shaped to provide a mounting surface which, in a cross-sectional plane perpendicular to the axis, defines a periphery of an area in the said plane which area is at least as great as the cross-sectional area of the said proximal portion of the antenna, the mounting surface being located proximally on the housing, and wherein the housing includes an insulative cover which surrounds the antenna and the housing body so as to substantially match the profile of and encapsulate both the antenna and the housing body.