Imaging antenna and related techniques
First Claim
Patent Images
1. A sub-compact antenna apparatus comprising:
- a plurality of layers of dielectric material;
an antenna inlaid in a top layer of the dielectric material so a surface of the antenna is substantially parallel to an outer surface of the top layer of dielectric material; and
a conductive staircase balun, coupled to the antenna, and embedded in one or more layers of the dielectric material, the conductive staircase balun comprising alternating layers of planar segments and annular segments, wherein first and second ones of the annular segments are placed in an alternating position with respect to the planar segment positioned between the first annular segment and the second annular segment;
wherein the antenna includes a hole and the balun comprises a cylindrical section adapted to extend through the hole to couple the antenna to the balun, and wherein a geometry of the balun within the layers of the dielectric material electrically extends a length of the antenna.
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Abstract
An antenna array includes a plurality of antenna elements. The antenna elements include layers of dielectric material; an antenna inlaid in a top layer of the dielectric material so a surface of the antenna is substantially parallel to an outer surface of the top layer of dielectric material; and a conductive balun, coupled to the antenna, and embedded in one or more layers of the dielectric material. The antenna array is operative to receive signals from V to W frequency band transmissions generated by a heat source.
21 Citations
17 Claims
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1. A sub-compact antenna apparatus comprising:
- a plurality of layers of dielectric material;
an antenna inlaid in a top layer of the dielectric material so a surface of the antenna is substantially parallel to an outer surface of the top layer of dielectric material; and a conductive staircase balun, coupled to the antenna, and embedded in one or more layers of the dielectric material, the conductive staircase balun comprising alternating layers of planar segments and annular segments, wherein first and second ones of the annular segments are placed in an alternating position with respect to the planar segment positioned between the first annular segment and the second annular segment; wherein the antenna includes a hole and the balun comprises a cylindrical section adapted to extend through the hole to couple the antenna to the balun, and wherein a geometry of the balun within the layers of the dielectric material electrically extends a length of the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17)
- a plurality of layers of dielectric material;
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15. An apparatus comprising:
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a plurality of layers of dielectric material; a log-periodic toothed planar antenna comprising two substantially planar conductive sections, the conductive sections inlaid in a top layer of the dielectric material so a top surface of the planar sections is substantially perpendicular to an outer surface of the top layer of dielectric material; and a conductive balun, comprising at least two conductive sections, each of the conductive sections coupled to one of the planar sections of the antenna, and embedded in one or more layers of the dielectric material, wherein the balun extends through at least some of the layers of dielectric material in a direction substantially perpendicular to the planar conductive sections of the antenna, the conductive balun comprising alternating layers of planar segments and annular segments arranged in an alternating staircase pattern, wherein first and second ones of the annular segments are placed in an alternating position with respect to the planar segment positioned between the first annular segment and the second annular segment; wherein the antenna includes a hole and the balun comprises a cylindrical section adapted to extend through the hole to couple the antenna to the balun, and wherein a geometry of the balun within the layers of the dielectric material electrically extends a length of the antenna.
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16. An imaging system comprising:
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a two-dimensional array of antenna sections, each antenna section comprising; a plurality of layers of dielectric material; a log-periodic toothed planar antenna comprising two substantially planar conductive sections, the conductive sections inlaid in a top layer of the dielectric material so a top surface of the planar sections is substantially perpendicular to an outer surface of the top layer of dielectric material; and a conductive balun, comprising at least two conductive sections, each of the conductive sections coupled to one of the planar sections of the antenna, and embedded in one or more layers of the dielectric material, the conductive staircase balun comprising alternating layers of planar segments and annular segments, wherein first and second ones of the annular segments are placed in an alternating position with respect to the planar segment positioned between the first annular segment and the second annular segment; wherein the antenna includes a hole and the balun comprises a cylindrical section adapted to extend through the hole to couple the antenna to the balun, and wherein a geometry of the balun within the layers of the dielectric material electrically extends a length of the antenna.
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Specification