Droopy bowtie radiator with integrated balun
First Claim
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1. A quad-line balun column comprising:
- a central member having a square cross-sectional shape and having four external conductive surfaces which extend from a first end to a second opposite end of said central member;
a first dielectric slab having a first surface disposed over a first portion of a first one of the four external conductive surfaces of said central member and wherein a second opposing surface of said first dielectric slab has a conductor disposed thereon wherein said first dielectric slab has a width substantially equal to the width of the first one of the four external conductive surfaces of said central member on which said first dielectric slab is disposed;
a second dielectric slab having a first surface disposed over a second portion of a second one of the four external conductive surfaces of said central member wherein said second dielectric slab has a width substantially equal to the width of the second one of the four external conductive surfaces of said central member and wherein a second opposing surface of said second dielectric slab has a conductor disposed thereon, wherein said conductor has a width substantially equal to the width of said second dielectric slab;
a third dielectric slab having a first surface disposed over a third portion of a third one of the four external conductive surfaces of said central member wherein said third dielectric slab has a width substantially equal to the width of the third one of the four external conductive surfaces of said central member and wherein a second opposing surface of said third dielectric slab has a conductor disposed thereon, wherein said conductor has a width substantially equal to the width of said third dielectric slab; and
a fourth dielectric slab having a first surface disposed over a fourth portion of a fourth one of the four external conductive surfaces of said central member wherein said fourth dielectric slab has a width substantially equal to the width of the fourth one of the four external conductive surfaces of said central member and wherein a second opposing surface of said fourth dielectric slab has a conductor disposed thereon wherein said fourth dielectric slab has a width substantially equal to the width of the fourth one of the four external conductive surfaces of said central member on which said fourth dielectric slab is disposed.
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Abstract
An antenna element and balun are described. The antenna includes a plurality of droopy bowtie antenna elements disposed on dielectric block and a feed point. The balun includes a central member having dielectric slabs symmetrically disposed on external surfaces thereof. At least one end of the balun is provided having a shape such that conductors on the dielectric slabs of the balun can be coupled to the the droopy bowtie antenna elements.
22 Citations
15 Claims
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1. A quad-line balun column comprising:
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a central member having a square cross-sectional shape and having four external conductive surfaces which extend from a first end to a second opposite end of said central member; a first dielectric slab having a first surface disposed over a first portion of a first one of the four external conductive surfaces of said central member and wherein a second opposing surface of said first dielectric slab has a conductor disposed thereon wherein said first dielectric slab has a width substantially equal to the width of the first one of the four external conductive surfaces of said central member on which said first dielectric slab is disposed; a second dielectric slab having a first surface disposed over a second portion of a second one of the four external conductive surfaces of said central member wherein said second dielectric slab has a width substantially equal to the width of the second one of the four external conductive surfaces of said central member and wherein a second opposing surface of said second dielectric slab has a conductor disposed thereon, wherein said conductor has a width substantially equal to the width of said second dielectric slab; a third dielectric slab having a first surface disposed over a third portion of a third one of the four external conductive surfaces of said central member wherein said third dielectric slab has a width substantially equal to the width of the third one of the four external conductive surfaces of said central member and wherein a second opposing surface of said third dielectric slab has a conductor disposed thereon, wherein said conductor has a width substantially equal to the width of said third dielectric slab; and a fourth dielectric slab having a first surface disposed over a fourth portion of a fourth one of the four external conductive surfaces of said central member wherein said fourth dielectric slab has a width substantially equal to the width of the fourth one of the four external conductive surfaces of said central member and wherein a second opposing surface of said fourth dielectric slab has a conductor disposed thereon wherein said fourth dielectric slab has a width substantially equal to the width of the fourth one of the four external conductive surfaces of said central member on which said fourth dielectric slab is disposed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An integrated antenna element comprising:
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(a) a droopy bowtie antenna element having a feed point; (b) a quad-line vertical balun column having a first end electrically coupled to the feed point of said droopy bowtie antenna element, said quad-line vertical balun column comprising; a central member having four continuously connected conductive surfaces and first and second opposing conductive ends, said central member having a square cross-sectional shape; a first dielectric slab having a first surface disposed over a first conductive surface of said central member and wherein a second opposing surface of said first dielectric slab has a respective conductor disposed thereon; a second dielectric slab having a first surface disposed over a second conductive surface of said central member and wherein a second opposing surface of said second dielectric slab has a respective conductor disposed thereon; a third dielectric slab having a first surface disposed over a third conductive surface of said central member and wherein a second opposing surface of said third dielectric slab has a respective conductor disposed thereon; and a fourth dielectric slab having a first surface disposed over a fourth conductive surface of said central member and wherein a second opposing surface of said fourth dielectric slab has a respective conductor disposed thereon.
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13. An integrated antenna element comprising:
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(a) a droopy bowtie antenna element having a feed point, said droopy bowtie antenna comprising; a dielectric radiator block having a height h and having cavity region formed therein with the cavity region having a generally truncated pyramidal shape with a pair of opposing surfaces and a feed point provide at the center point of the cavity; and a conductive layer disposed on each of the surfaces, each of the conductive layers having a generally triangular shape with one vertices terminating proximate the feed point; (b) a quad-line vertical balun column having a first end electrically coupled to the feed point of said droopy bowtie antenna element, said quad-line vertical balun column comprising; a central member having four continuously connected conductive surfaces and first and second opposing conductive ends, said conductive member having a contiguous square cross-sectional shape; a first dielectric slab having a first surface disposed over a first conductive surface of said central member and wherein a second opposing surface of said first dielectric slab has a respective conductor disposed thereon; a second dielectric slab having a first surface disposed over a second conductive surface of said central member and wherein a second opposing surface of said second dielectric slab has a respective conductor disposed thereon; a third dielectric slab having a first surface disposed over a third conductive surface of said central member and wherein a second opposing surface of said third dielectric slab has a respective conductor disposed thereon; and a fourth dielectric slab having a first surface disposed over a fourth conductive surface of said central member and wherein a second opposing surface of said fourth dielectric slab has a respective conductor disposed thereon. - View Dependent Claims (14, 15)
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Specification