Plane periodic antenna
First Claim
1. A plane periodic antenna, comprising:
- a conductive plate having radiating elements formed from two plates, each of said plates comprising a series of flat teeth, whereof the dimensions are deduced from one another on the basis of a homothetic transformation of ratio T2 and expansion pole O, the teeth of one of the two series being inserted between the teeth of the other series and the end of one given tooth being separated from the edge of the plate located between two teeth of the other series by predetermined gap ε
;
a supply line placed in a plane close to that of the plate making it possible to supply the teeth from the predetermined gap ε
;
a ground plane located at a distance Hn from each tooth which distance varies as a function of the variant wave-length λ
n of each tooth, so that the antenna can be fitted into a flat structure without changing the aerodynamics thereof and in which the length kn of the feed line between two gaps ε
is less than λ
n /2 and greater than or equal to λ
n /4 to obtain a radiation of the antenna in a sloping direction with respect to the plane of the structure.
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Accused Products
Abstract
The invention relates to a plane periodic antenna, wherein it comprises a conductive plate having radiating elements formed from two lines of flat teeth, whereof the dimensions are deduced from one another on the basis of a homothetic transformation of ratio τ and expansion pole O, the teeth of one of the two lines being inserted between the teeth of the other line and the end of one given tooth being separated from the edge of the plate located between two teeth of the other line by a predetermined gap, a supply line place in a plane close to that of the plate making it possible to supply the teeth, from the predetermined gap, a ground plane located at a distance from each tooth varies as a function of the wavelength of each tooth.
41 Citations
12 Claims
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1. A plane periodic antenna, comprising:
-
a conductive plate having radiating elements formed from two plates, each of said plates comprising a series of flat teeth, whereof the dimensions are deduced from one another on the basis of a homothetic transformation of ratio T2 and expansion pole O, the teeth of one of the two series being inserted between the teeth of the other series and the end of one given tooth being separated from the edge of the plate located between two teeth of the other series by predetermined gap ε
;a supply line placed in a plane close to that of the plate making it possible to supply the teeth from the predetermined gap ε
;a ground plane located at a distance Hn from each tooth which distance varies as a function of the variant wave-length λ
n of each tooth, so that the antenna can be fitted into a flat structure without changing the aerodynamics thereof and in which the length kn of the feed line between two gaps ε
is less than λ
n /2 and greater than or equal to λ
n /4 to obtain a radiation of the antenna in a sloping direction with respect to the plane of the structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification