Flat plate TV antenna
First Claim
1. A planar antenna module comprising:
- a dielectric substrate;
a plurality of concentric loops formed of conductive material and disposed on the substrate;
first and second antenna terminals;
each loop comprising first and second opposing loop sections of like physical dimensions formed by two adjacent sides of one of the loops, the first and second opposing loop sections of each loop having adjacently disposed ends;
a first of the two adjacent sides of each loop having one end electrically connected to the first antenna terminal and a second of the two adjacent sides of each loop having one end connected to the second antenna terminal;
the first and second opposing loop sections together forming an antenna loop for signals within a predetermined frequency band;
the plurality of concentric antenna loops together forming an antenna structure for a plurality of frequency bands within a predetermined frequency spectrum.
1 Assignment
0 Petitions
Accused Products
Abstract
A television antenna is constructed of a flat plate antenna comprising a plurality of concentric, rectangularly shaped loops formed of conductive material and disposed on a substrate. Each loop forms an antenna for signals in a predefined frequency band within the TV frequency spectrum. An additional loop is disposed within the plurality of concentric loops and is adapted for receiving signals in the FM frequency range. Each of the loops has four sides having an electrical length equivalent to one-quarter wavelength at a center frequency within a frequency band and each side of each antenna loop is connected to a side of another antenna loop and to one of a pair of antenna output terminals. The sides of each loop are formed by conductive strips deposited on a dielectric substrate which is particularly adapted for installation adjacent a dielectric roof panel or the like.
48 Citations
24 Claims
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1. A planar antenna module comprising:
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a dielectric substrate; a plurality of concentric loops formed of conductive material and disposed on the substrate; first and second antenna terminals; each loop comprising first and second opposing loop sections of like physical dimensions formed by two adjacent sides of one of the loops, the first and second opposing loop sections of each loop having adjacently disposed ends; a first of the two adjacent sides of each loop having one end electrically connected to the first antenna terminal and a second of the two adjacent sides of each loop having one end connected to the second antenna terminal; the first and second opposing loop sections together forming an antenna loop for signals within a predetermined frequency band; the plurality of concentric antenna loops together forming an antenna structure for a plurality of frequency bands within a predetermined frequency spectrum. - View Dependent Claims (2, 3, 4)
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5. A planar antenna module adapted for use in a an automotive vehicle and comprising:
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a plurality of concentric loops formed of conductive material and disposed on a dielectric substrate and together forming an antenna for conducting signals in a plurality of frequency bands within a predefined frequency spectrum, each of the loops comprising first, second, third and fourth separate conductor sections of substantially equal length, each of the first, second, third, and fourth conductor sections having a first end and a second end; a first and a second antenna terminal; the first end of the first conductor section of an associated loop disposed adjacent the first end of the second conductor section of the associated loop and the second end of the first conductor section disposed adjacent the second end of the fourth conductor section of the associated loop; the second end of the second conductor section of the associated loop disposed adjacent the second end of the third conductor section of the associated loop; the first end of the third conductor section of the associated loop disposed adjacent the first end of the fourth conductor section of the associated loop; and the first end of the first conductor section and the first end of the third conductor section of the associated loop electrically connected to the first antenna terminal and the first end of the second conductor section and the first end of the fourth conductor section electrically connected to the second antenna terminal. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. An omnidirectional television antenna for use within a fiberglass structure comprising:
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a dielectric substrate; a plurality of strips of conductive material disposed on the substrate forming a plurality of concentric antenna loops together forming an antenna for receiving signals in a plurality of frequency bands together defining the television frequency spectrum; the plurality of concentric loops comprising an innermost loop and an outermost loop and a plurality of intermediate loops; each of the frequency bands having a center frequency; each of the antenna loops comprising first, second, third and fourth separate conductor sections of equal length, the separate conductor sections of each antenna loop together forming a rectangularly shaped loop, each conductor section of each of the loops having an electrical length equivalent to one quarter wavelength of the center frequency of one of the frequency bands; a first and a second antenna terminal; each conductor section of each loop having a first end and a second end; the first end of each conductive section of the outermost loop and of the intermediate loops electrically connected to the first end of a conductive section of the innermost loop, the first end of a conductor section of the innermost loop connected to one of the first and second antenna terminals; the second end of the first section and the second end of the second section disposed adjacent each other and the first and second sections being capacitively coupled at respective second ends; the second end of the third section and the second end of the fourth section disposed adjacent each other and the third and fourth sections being capacitively coupled at respective second ends; each of the antenna loops having a bandwidth extending at least 10 percent of the center frequency of a predefined band in the television spectrum above and below the center frequency of the predefined frequency band.
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13. A planar antenna module comprising:
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a dielectric substrate; a plurality of concentric loops formed of conductive material and disposed on the substrate, each loop having a perimeter length equivalent to one wavelength of signals at a center frequency of a frequency band in a multiband television frequency spectrum; each loop comprising first and second opposing loop sections, each of the first and second opposing loop sections comprising a pair of electrically interconnected conductor sections of equal length, each of the conductor sections having one end electrically connected to an antenna lead wire, the first and second opposing loop sections having like physical dimensions and each of the first and second opposing loop sections forming a half wavelength antenna loop at a selected frequency in a predefined frequency spectrum. - View Dependent Claims (14, 15, 16, 17)
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18. An omni-directional flat plate television antenna for use in an automotive vehicle and adapted for receiving television signals, the antenna comprising:
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a first cluster comprising a first plurality of adjacently disposed concentric loops for receiving signals in a first television frequency range and having physical dimensions falling within a first range of dimensions; a second cluster comprising a second plurality, smaller than the first plurality, of adjacently disposed concentric loops for receiving signals in second television frequency range, higher than the first television frequency range, the second cluster spaced apart from the first cluster and the concentric loops of the second cluster having physical dimensions falling within a second range of dimensions smaller than the first range of dimensions; a third cluster comprising a third plurality of adjacently disposed concentric loops for receiving signals in a third frequency range higher than the second frequency range, the third cluster spaced apart from the second cluster and concentric loops having physical dimensions falling within a third range of dimensions smaller than the second range of dimensions; each of the concentric loops comprising first, second, third and fourth separate conductor sections of substantially equal length, the first and second conductor sections of each loop extending on one side of a center line and extending toward the center line and the third and fourth conductor sections of each loop extending on another side of the center line and toward the center line; a first and a second antenna terminal; the first, second, third and fourth conductor sections of each loop arranged such that the first conductor section of a predefined loop has one end disposed adjacent one end of the second conductor section of the predefined loop and the third conductor section of the predefined loop has one end disposed adjacent one end of the fourth conductor section of the predefined loop; the one end of the first, second, third and fourth conductor sections of each loop each connected to one of the antenna terminals. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification