Antenna and a method of manufacturing an antenna
AssigneeSarantel Limited
InventorsJenny Sarah Drake, Oliver Paul Leisten
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AssigneeSarantel Limited
InventorsJenny Sarah Drake, Oliver Paul Leisten
Estimating the term…
A dielectrically-loaded antenna has a cylindrical ceramic core, a three dimensional antenna element structure comprising co-extensive helical conductors plated on a cylindrical side surface of the core and a dielectrically-loaded antenna has a solid cylindrical core made of a ceramic material, helical antenna elements made of a ceramic material, co-extensive helical antenna elements plated on the core, connecting conductors on a distal end surface, a matching section in the form of a printed circuit board overlying the core distal end surface and a coaxial feeder housed in an axial bore passing through the core. For ease of manufacture, the laminate board of the matching section contains a ball grid array having a plurality of solder elements which serve to connect the matching network to both the surface connection elements on the distal core end surface and to the feeder. At a proximal end of the feeder there is a transversely extending flange for connecting the shield of the feeder to a plating on a proximal end surface of the core, the plating forming part of an integral balun.
A dielectrically loaded antenna for operation at a frequency in excess of 200 MHz comprising:
A method of manufacturing a dielectrically loaded antenna for operation at a frequency in excess of 200 MHz, the antenna comprising an electrically insulative core of a solid material with a passage therethrough defining a feed axis, an antenna element structure on the core and including conductive surface connection elements formed as conductive layer portions located on an outer surface portion of the core near one end of the passage, an elongate feeder housed in the passage, and a matching section including a laminate board, wherein the method comprises:
Dependencies are inferred from the claim text.