SARANTEL LIMITED Patent applications |
Patent application number | Title | Published |
20140015726 | RADIOFREQUENCY CIRCUIT ASSEMBLY - Disclosed herein are embodiments of a radiofrequency circuit assemblies and dielectrically-loaded antennas for use in the assembly, the assembly and the antenna being for operation at a frequency in excess of 200 MHz. The disclosed assemblies and antennas should not be construed as limiting in any way. Instead, the present disclosure is directed toward all novel and nonobvious features and aspects of the various disclosed embodiments, alone and in various combinations and subcombinations with one another. | 01-16-2014 |
20130181881 | ANTENNA ASSEMBLY - Among the embodiments disclosed herein is an antenna assembly comprising the combination of a dielectrically loaded antenna and a housing, the housing incorporating a connector for coupling the antenna to host equipment. The antenna comprises an insulative core which has an outer surface and is shaped to define a central axis, and a laminate board on the central axis, the laminate board extending proximally from a proximal core surface portion oriented transversely with respect to the axis. The housing comprises a housing body which forms a hollow conductive shield for the laminate board, and is centred on the antenna axis, 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. | 07-18-2013 |
20130135169 | ANTENNA - This application relates to antennas including, for example, an antenna for operation at a frequency in excess of 200 MHz comprising: an insulative substrate having a central axis, an axial passage extending therethrough and an outer substrate surface which extends around the axis; a three-dimensional antenna element structure including at least one pair of axially coextensive elongate conductive antenna elements on or adjacent the outer substrate surface; and an axial feeder structure which extends through the passage and comprises an elongate laminate board wherein the laminate board proximal end portion includes lateral extensions projecting in opposite lateral directions, and wherein, adjacent the laminate board proximal end portion, the substrate has recesses on opposite sides of the axis which receive at least edge parts of the said lateral extensions of the laminate board proximal end portion. | 05-30-2013 |
20130099999 | RADIOFREQUENCY CIRCUIT ASSEMBLY - This disclosure relates to a radiofrequency circuit assembly and a dielectrically-loaded antenna for use in the assembly. The antenna comprises a solid electrically insulative core having a passage therethrough extending from a first core surface portion to a second, oppositely facing core surface portion, and a printed circuit feeder structure secured in the core passage and having exposed antenna mounting projections at opposite respective ends of the passage. The printed circuit board mounting the antenna has a cut-out dimensioned to accommodate the antenna core with the passage extending substantially parallel to the plane of the board. The antenna mounting projections at both ends of the passage engage respective edge portions of the said printed circuit board adjacent the cut-out so that the antenna core is supported by the printed circuit board between spaced-apart mounting locations adjacent the oppositely facing core surface portions. | 04-25-2013 |
20120299798 | Dielectrically Loaded Antenna - A dielectrically loaded antenna for operation at first and second frequencies above 200 MHz with circularly polarized radiation includes an electrically insulative dielectric core of solid material having a relative dielectric constant greater than 5, and a three-dimensional antenna element structure linked to a pair of feed coupling nodes. The antenna element structure is divided into a distal section and a proximal section respectively having a first set of elongate conductors on or adjacent a distal part of the core side surface portion and a second set of elongate conductors on or adjacent a proximal part of the core side surface portion, and wherein the first set of conductors is resonant at the first operating frequency and the second set of conductors is resonant at the second operating frequency. | 11-29-2012 |
20120287016 | Antenna and a Method of Manufacture Thereof - A method of manufacturing a dielectrically loaded antenna having an operating frequency in excess of 200 MHz, the antenna having an electrically insulative core, the method including steps of: forming a first patterned layer of conductive material having a plurality of inner conductive tracks on at least one surface of the core of the antenna; depositing a layer of insulative material over at least a portion of the first layer of conductive material; and forming a second patterned layer of conductive material having a plurality of outer conductive tracks, at least partially overlapping the inner conductive tracks. | 11-15-2012 |
20120026066 | Antenna - An antenna for circularly polarised radiation at an operating frequency in excess of 200 MHz has a substrate in the form of a disc-shaped dielectric tile with parallel planar surfaces. The upper surface bears a conductive pattern including a resonant ring and a number of open-circuit radiating elements each having an electrical length of a quarterwave at the resonant frequency of the ring. The radiating elements extend outwardly from the ring and are joined to the ring at uniformly spaced locations. Each radiating element extends in a direction which has both a radial component and a tangential component and follows a generally spiral path. A pair of central feed nodes are coupled to the inside of the ring by a pair of feed tracks lying on a diameter. Dual-frequency and dual-polarisation variants are also disclosed. | 02-02-2012 |