Antenna
First Claim
Patent Images
1. An antenna comprising:
- a first unbalanced antenna element having a first length in a first direction, a feed point and a first part at which the electric field produced by the first unbalanced antenna element is a maximum and a second part at which the electric field produced by the first unbalanced antenna element is a minimum;
a second balanced antenna element having a second length in the first direction, a spaced relationship with the first unbalanced antenna element and a first part at which the electric field produced by the second balanced antenna element is a maximum and a second part at which the electric field produced by the second balanced antenna element is a minimum wherein the first and second parts of the first unbalanced antenna element and the first and second parts of the second balanced antenna element lie within the same plane wherein;
a maximum amplitude of an electric field produced by the first unbalanced antenna element and a maximum amplitude of an electric field produced by the second balanced antenna element are in line with a second direction that is substantially perpendicular to the first direction.
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Abstract
An antenna is disclosed. The antenna has a first element including an unbalanced antenna with a feed point, and a second element. The second element has a spaced relationship with the first element, and includes a balanced antenna arranged to be electromagnetically coupled to the first element. Embodiments of the invention exhibit relatively high Pattern Averaged Gain (PAG).
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Citations
31 Claims
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1. An antenna comprising:
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a first unbalanced antenna element having a first length in a first direction, a feed point and a first part at which the electric field produced by the first unbalanced antenna element is a maximum and a second part at which the electric field produced by the first unbalanced antenna element is a minimum; a second balanced antenna element having a second length in the first direction, a spaced relationship with the first unbalanced antenna element and a first part at which the electric field produced by the second balanced antenna element is a maximum and a second part at which the electric field produced by the second balanced antenna element is a minimum wherein the first and second parts of the first unbalanced antenna element and the first and second parts of the second balanced antenna element lie within the same plane wherein; a maximum amplitude of an electric field produced by the first unbalanced antenna element and a maximum amplitude of an electric field produced by the second balanced antenna element are in line with a second direction that is substantially perpendicular to the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An antenna comprising:
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a first element having a first length in a first direction and comprising a first end at one extremity of a length thereof, a second end at another extremity of the length thereof and a feed point wherein the first end is an open circuit and the second end is grounded; a second element having a spaced relationship from the first element and a second length in the first direction and comprising a first end at one extremity of length thereof, a second end at another extremity of a length, wherein the first end is an open circuit and the second end is an open circuit; and
whereinthe first end of the first element and the first end of the second element are substantially in line with a second direction that is substantially perpendicular to the first direction. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An antenna comprising:
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a ground plane; a first element having a first length in a first direction and comprising a first end at one extremity of a length thereof, a second end at another extremity of a length thereof and a feed point wherein the first end is an open circuit and the second end is connected to a ground plane; a second element having a spaced relationship from the first element and a second length in the first direction and comprising a first end at one extremity of a length thereof, a second end at another extremity of a length thereof, a midpoint substantially half way between the first end and the second end wherein the first end is an open circuit and the second end is an open circuit; and
whereinthe second end of the first element and the midpoint of the second element are substantially in line with a second direction that is substantially perpendicular to the first direction.
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Specification