Back to results
US 10,122,402 B2Granted
Method and apparatus for a tunable antenna
AssigneeFuturewei Technologies, Inc.
InventorsShing Lung Steven Yang, Ping Shi, Daejoung Kim, Wee Kian Toh, Navid Nader, Guangdong Jiang
Life of this patent
Estimating the term…
Abstract
A method for tuning an antenna comprising determining an operating frequency band of the antenna, and adjusting a capacitance of a tunable load according to the operating frequency band, wherein the tunable load is electromagnetically coupled to the antenna via a parasitic arm, and wherein the operating frequency band depends on the capacitance.
Claims21
A method for tuning an antenna comprising:
- determining an operating frequency band of the antenna, the antenna being a dual-arm antenna having arms of different lengths, the arms having ends that face each other without the arms overlapping;
- and
- adjusting a capacitance of a tunable load according to the operating frequency band, the tunable load being electromagnetically coupled to the antenna via a loop-type parasitic arm disposed within a boundary of a keepout area laterally adjacent to a ground plane, the keepout area being a non-conductive region on a printed circuit board (PCB), and the operating frequency band depending on the capacitance.
An apparatus comprising:
- a dual-arm antenna having arms of different lengths, the arms having ends that face each other without the arms overlapping;
- a loop-type parasitic arm electromagnetically coupled to the dual-arm antenna, the loop-type parasitic arm disposed within a boundary of a keepout area laterally adjacent to a ground plane, the keepout area being a non-conductive region on a printed circuit board (PCB);
- and
- a tunable load coupled to the loop-type parasitic arm, wherein a capacitance of the tunable load is variable and an operating frequency band of the dual-arm antenna depending on the capacitance.
1 more element
A wireless communication device comprising:
- a dual-arm antenna having arms of different lengths, the arms having ends that face each other without the arms overlapping;
- a loop-type parasitic arm electromagnetically coupled to the dual-arm antenna, the loop-type parasitic arm being disposed within a boundary of a keepout area laterally adjacent to a ground plane, the keepout area being a non-conductive region on a printed circuit board (PCB);
- a tunable load coupled to the loop-type parasitic arm, a capacitance of the tunable load being variable and an operating frequency band of the dual-arm antenna depending on the capacitance;
- and
- a processor coupled to the tunable load, the processor configured to select a first operating frequency band and set the capacitance to a value to achieve the first operating frequency band.
2 more elements
A method for tuning an antenna comprising:
- determining an operating frequency band of the antenna, the antenna being a dual-arm antenna having two arms of different lengths, the two arms having ends that face each other without the two arms overlapping;
- and
- adjusting a capacitance of a tunable load according to the operating frequency band, the tunable load being electromagnetically coupled to the antenna via a parasitic arm disposed within a boundary of a non-conductive keepout area laterally adjacent to a ground plane, and the operating frequency band depending on the capacitance.
An apparatus comprising:
- a dual-arm antenna having two arms of different lengths, the two arms having ends that face each other without the two arms overlapping;
- a parasitic arm electromagnetically coupled to the dual-arm antenna, the parasitic arm being disposed within a boundary of a non-conductive keepout area laterally adjacent to a ground plane;
- and
- a tunable load coupled to the parasitic arm, a capacitance of the tunable load being variable and an operating frequency band of the antenna depending on the capacitance.
1 more element
A wireless communication device comprising:
- a dual-arm antenna having two arms of different lengths, the two arms having ends that face each other without the two arms overlapping;
- a parasitic arm electromagnetically coupled to the dual-arm antenna, the parasitic arm being disposed within a boundary of a non-conductive keepout area laterally adjacent to a ground plane;
- a tunable load coupled to the parasitic arm, a capacitance of the tunable load being variable and an operating frequency band of the dual-arm antenna depending on the capacitance;
- and
- a processor coupled to the tunable load and configured to select a first operating frequency band and set the capacitance to a value to achieve the first operating frequency band.
2 more elements
Dependencies are inferred from the claim text.