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US 9,002,262 B1Granted
Multi-mode wideband antenna
AssigneeAmazon Technologies, Inc.
InventorJerry W. Kuo
Life of this patent
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Abstract
Methods and systems for extending a bandwidth of a multi-mode wideband antenna of a user device are described. A multi-mode wideband antenna includes a single radio frequency (RF) feed coupled to a first element, and a second element coupled to the first element and a ground plane. The first element is to operate as a feeding structure to a parasitic grounding element that is coupled to the ground plane, but is not conductively connected to the RF feed. The multi-mode wideband antenna is configured to provide multiple resonant modes.
Claims24
An electronic device comprising:
- a single radio frequency (RF) feed;
- a ground plane;
- and
- a multi-mode monopole antenna coupled to the single RF feed, wherein the multi-mode monopole antenna comprises:
- a first element conductively coupled to the single RF feed at a feeding point, wherein the first element comprises a first sub-element and a second sub-element;
- a second element conductively coupled to the ground plane at a first grounding point and conductively coupled to the first element at a distal point from the first grounding point, wherein the second element comprises:
- a first arm coupled to the first grounding point;
- a middle portion coupled to a distal end of the first arm, the distal end being a farthest end of the first arm from the first grounding point, wherein the distal point is located at a first side of the middle portion;
- and
- a plurality of parallel traces that extend out from the middle portion at an opposite side from the first side where the first sub-element conductively connects to the first sub-element;
- and
- a first monopole element coupled to the ground plane at a second grounding point, wherein the second sub-element is a second monopole element and is disposed to form a first coupling section between the second monopole element and the first monopole element.
9 more elements
An electronic device comprising:
- a single radio frequency (RF) feed;
- a ground plane;
- and
- a multi-mode monopole antenna coupled to the single RF feed, wherein the multi-mode monopole antenna comprises:
- a first element coupled to the single RF feed;
- a second element coupled to the ground plane;
- and
- a first monopole element coupled to the ground plane, wherein the second element comprises a first arm, a middle portion, and a plurality of parallel traces, wherein the first arm extends from the ground plane towards the middle portion and the plurality of parallel traces extend out from the middle portion at a distal end of the second element, wherein the first element comprises a first section and a second section, wherein a distal end of the first section is conductively connected to a distal end of the first arm of the second element, and wherein the second section comprises a second monopole element disposed to form a first coupling section between the second monopole element and the first monopole element, wherein:
- the first section of the first element further comprises a feed trace, a widened section, and a first coupler section, the widened section is wider than the feed trace and the first coupler section;
- the second section further comprises a second coupler section;
- the feed trace extends from the RF feed towards a first end of the widened section and the first coupler section extends from a second end of the widened section to where the first section is conductively connected to the distal end of the first arm of the second element;
- the second monopole element extends from the feed trace and the second coupler section extends from a distal end of the second monopole element;
- and
- the first coupler section and the second coupler section are disposed to form a second coupling section.
11 more elements
An apparatus device comprising:
- a radio frequency (RF) feed;
- a ground plane;
- and
- an antenna structure comprising:
- a first element conductively coupled to the RF feed at a feeding point, wherein the first element comprises a first section and a second section, and wherein a portion of the first section and a portion of the second section are disposed to form an inductive coupling between the first section and the second section;
- a second element conductively coupled to the ground plane at a first grounding point and conductively coupled to the first element at a distal point from the first grounding point, wherein the second element comprises a plurality of extension traces;
- and
- a third element conductively coupled to the ground plane at a second grounding point, wherein the third element is a parasitic ground element.
5 more elements
An apparatus device comprising:
- a radio frequency (RF) feed;
- a ground plane;
- and
- an antenna structure comprising:
- a first element coupled to the RF feed, wherein the first element comprises a first section and a second section, and wherein a portion of the first section and a portion of the second section are disposed to form an inductive coupling between the first section and the second section;
- a second element coupled to the ground plane and coupled to the first element, wherein the second element comprises a plurality of extension traces;
- and
- a third element coupled to the ground plane, wherein the third element is a parasitic ground element, wherein the inductive coupling is configured to decrease a reflection coefficient at a first resonant mode of a plurality of resonant modes, wherein the plurality of extension traces are configured to decrease the reflection coefficient at a second resonant mode of the plurality of resonant modes, wherein the third element is configured to decrease the reflection coefficient at a third resonant mode of the plurality of resonant modes, and wherein the first element and the second element are configured to decrease the reflection coefficient at a fourth resonant mode.
5 more elements
A method of operating an electronic device, the method comprising
- applying a first current at a radio frequency (RF) feed coupled to a first element of an antenna structure, wherein the antenna structure further comprises a parasitic grounding element coupled to a ground plane and a second element coupled to the ground plane and coupled to a distal end of the first element, wherein the first element comprises a first section and a second section, wherein the first section of the first element further comprises a feed trace, a widened section, and a first coupler section, and the second section further comprise a second coupler section, wherein the feed trace extends from the RF feed towards a first end of the widened section and the first coupler section extends from a second end of the widened section to the distal end of the first element where the first element is coupled to the second element, and wherein the second section of the first element extends from the feed trace and the second coupler section is disposed at a distal end of the second section of the first element, and wherein the first coupler section and the second coupler section are disposed to form an inductive coupling between the first section and the second section, wherein the second element comprises a plurality of parallel traces disposed at a distal end of the second element;
- in response to the applying the first current, parasitically inducing a second current at the parasitic grounding element of the antenna structure, wherein the parasitic grounding element is not conductively connected to the RF feed;
- and
- radiating electromagnetic energy from the first element, the second element and the parasitic grounding element to communicate information to another device in response to the first and second currents.
1 more element
Dependencies are inferred from the claim text.