Antenna system utilizing currents in conductive body
First Claim
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1. An antenna system for operation at at least one intended frequency, said antenna system including:
- an electrically conductive three-dimensional body forming a closed loop for the flow of radio frequency signals therethrough at said at least one intended frequency when said body is exposed to a radio frequency field, said loop having a length which is short with respect to a resonant fraction of a wavelength at said intended frequency;
a column of relatively reduced cross-sectional area connecting major surfaces of said body and through which said radio frequency signals tend to flow;
means cooperating with said column portion for increasing the electrical impedance of a segment of said column portion; and
,body resonating means connected directly to said column portion across said segment for producing forced electrical resonance of said body at said intended frequency.
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Abstract
An improved antenna system for the transmission and/or reception of electromagnetic signals is described which utilizes a region or regions of natural current concentration within the conductive portion or portions of fixed or mobile structures for the extraction or insertion of electromagnetic energy.
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Citations
4 Claims
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1. An antenna system for operation at at least one intended frequency, said antenna system including:
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an electrically conductive three-dimensional body forming a closed loop for the flow of radio frequency signals therethrough at said at least one intended frequency when said body is exposed to a radio frequency field, said loop having a length which is short with respect to a resonant fraction of a wavelength at said intended frequency; a column of relatively reduced cross-sectional area connecting major surfaces of said body and through which said radio frequency signals tend to flow; means cooperating with said column portion for increasing the electrical impedance of a segment of said column portion; and
,body resonating means connected directly to said column portion across said segment for producing forced electrical resonance of said body at said intended frequency. - View Dependent Claims (2, 3, 4)
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Specification
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Current AssigneeRoss Alan Davis
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Original AssigneeRoss Alan Davis
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InventorsDavis, Ross Alan
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Primary Examiner(s)Lieberman, Eli
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Application NumberUS05/552,569Time in Patent Office463 DaysField of Search343/711, 343/712, 343/748US Class Current343/712CPC Class CodesH01Q 1/32 Adaptation for use in or on...
