Dual band patch bowtie slot antenna structure
First Claim
1. A dual band antenna assembly for a wireless communications device, said dual band antenna assembly comprising:
- a conductive ground plane member operatively coupled to the wireless communications device;
a substantially planar dielectric element disposed a distance away from the ground plane member;
a patch antenna element disposed upon a first major surface of the dielectric element in the direction toward the ground plane member; and
a bowtie-slot antenna element defined upon the dielectric element within a boundary of the patch antenna element, said bowtie-slot antenna element having a gap structure within a narrowed region, said gap structure having a pair of opposed sides with one side being conductively coupled to a signal conductor and the other side being conductively coupled to the ground plane member, wherein the bowtie-slot antenna element has a first antenna electrical resonance frequency characteristic, and wherein the patch antenna element has a second antenna electrical resonance frequency characteristic.
3 Assignments
0 Petitions
Accused Products
Abstract
The present invention discloses a combination patch antenna element and bowtie-shaped slot antenna element together disposed upon a first major surface of a dielectric element. The bowtie-slot antenna element is defined upon the dielectric element within a boundary of the patch antenna element. The bowtie-slot antenna element defines a first antenna electrical resonance frequency characteristic, and the patch antenna element defines a second antenna electrical resonance frequency characteristic. The combination patch antenna element and bowtie-shaped slot antenna element are provided in relation to a ground plane element, such as provided by a printed wiring board of a wireless communications device. An additional optional feature of the antenna includes a plurality of conductive pattern enhancement elements disposed on an opposite side of the dielectric element.
66 Citations
16 Claims
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1. A dual band antenna assembly for a wireless communications device, said dual band antenna assembly comprising:
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a conductive ground plane member operatively coupled to the wireless communications device;
a substantially planar dielectric element disposed a distance away from the ground plane member;
a patch antenna element disposed upon a first major surface of the dielectric element in the direction toward the ground plane member; and
a bowtie-slot antenna element defined upon the dielectric element within a boundary of the patch antenna element, said bowtie-slot antenna element having a gap structure within a narrowed region, said gap structure having a pair of opposed sides with one side being conductively coupled to a signal conductor and the other side being conductively coupled to the ground plane member, wherein the bowtie-slot antenna element has a first antenna electrical resonance frequency characteristic, and wherein the patch antenna element has a second antenna electrical resonance frequency characteristic. - View Dependent Claims (2, 3, 4, 5, 6, 7)
a plurality of conductive pattern enhancement elements on a second major surface of the dielectric element in the direction away from the ground plane member.
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8. A method of fabricating a dual band antenna assembly comprising the steps of:
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providing a wireless communications device having a ground plane structure and a signal generating/receiving component;
providing a dielectric board element disposed a distance away from the ground plane structure;
providing a patch antenna element disposed upon a first major surface of the dielectric element in the direction toward the ground plane member; and
providing a bowtie-slot antenna element defined upon the dielectric element within a boundary of the patch antenna element and having a pair of interior signal coupling locations proximate a narrowed region of the bowtie-slot antenna element;
coupling said bowtie-slot antenna element at the pair of interior signal coupling locations wherein one of the signal coupling locations is conductively coupled to a signal conductor and the other signal coupling location is conductively coupled to the ground plane structure;
tuning physical dimensions of the patch antenna element to resonate at first resonant frequencies within an operating frequency band; and
tuning physical dimensions of the bowtie-slot antenna element to resonate at second resonant frequencies within an operating frequency band. - View Dependent Claims (9)
providing a plurality of conductive pattern enhancement elements on a second major surface of the dielectric element in the direction away from the ground plane structure; and
tuning physical dimensions of one or more of the plurality of conductive pattern enhancement elements to provide an enhanced antenna characteristic.
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10. A dual band combination patch element and bowtie-slot element antenna apparatus comprising the combination of:
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a dielectric board element;
a patch antenna element disposed upon the dielectric board element, said patch antenna element having approximately half wavelength physical dimensions, said patch antenna element having a first antenna electrical resonance frequency characteristic; and
a bowtie-shaped slot antenna element disposed within the patch antenna element and having a second antenna electrical resonance frequency characteristic, said bowtie-slot antenna element having a gap structure within a narrowed region, said gap structure having a pair of opposed sides with one side being coupled to a signal conductor and the other side being conductively coupled to a ground conductor. - View Dependent Claims (11, 12, 13, 14, 15, 16)
a plurality of conductive antenna pattern enhancement elements disposed upon a major side of the dielectric board element opposite to the patch antenna element and the bowtie-shaped slot antenna element.
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12. The dual band antenna apparatus of claim 10 wherein the patch antenna element is generally rectangularly shaped.
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13. The dual band antenna apparatus of claim 10 wherein the first electrical resonance frequency characteristic and the second electrical resonance frequency characteristic comprise at least two different resonance frequencies.
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14. The dual band antenna apparatus of claim 13 wherein the two different resonance frequencies are GSM (880-960) MHz and 3 G UMTS (1.92-2.17) GHz.
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15. The dual band antenna apparatus of claim 10 wherein said antenna apparatus is one of a plurality of similar antenna apparatuses disposed in an array.
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16. The dual band antenna apparatus of claim 15 wherein the plurality of similar antenna apparatuses are coupled to a single feed port.
Specification