Wide band antenna systems
First Claim
Patent Images
1. A mobile communication device, comprising:
- a transceiver;
an antenna system coupled with the transceiver, wherein the antenna system includes a first pair of flag antennas and a second pair of flag antennas, wherein one of the first or second pairs of flag antennas are primary antennas and another of the first or second pairs of flag antennas are diversity antennas, wherein a first flag of the first pair of flag antennas is utilized during middle and high band communications, wherein a third flag of the second pair of flag antennas is utilized during middle and high band communications, wherein the first pair of flag antennas have a first single feed point and are connected via a first transmission line, wherein the first pair of flag antennas are positioned in proximity to a bottom of the mobile communication device, wherein the second pair of flag antennas have a second single feed point and are connected via a second transmission line, and wherein the second pair of flag antennas are positioned in proximity to a side of the mobile communication device;
a group of inductors coupled with the first and second pairs of flag antennas;
a matching network coupled with the transceiver and the antenna system, wherein the matching network comprises a tunable reactive element;
a tuning sensor, wherein the tuning sensor measures one or more signal parameters; and
a controller coupled with the matching network, wherein the controller detects an impedance change of the antenna system, wherein the controller receives a first signal parameter from the tuning sensor and determines a first efficiency metric for the matching network based on the first signal parameter, wherein the controller switches the primary antennas to operate in a diversity state and switches the diversity antennas to operate in a primary state based on the impedance change and the first efficiency metric, wherein the controller receives a second signal parameter from the tuning sensor and determines a second efficiency metric for the matching network based on the second signal parameter, wherein the controller adjusts the tunable reactive element according to the second efficiency metric to provide impedance tuning.
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Abstract
A system that incorporates teachings of the subject disclosure may include, for example, a communication device including a matching network for impedance tuning and pairs of antennas that can be utilized as primary and diversity antennas, respectively, and can provide high radiation efficiency. An RF switch can be utilized for re-configuring the primary and diversity antennas. Other embodiments are disclosed.
11 Citations
20 Claims
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1. A mobile communication device, comprising:
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a transceiver; an antenna system coupled with the transceiver, wherein the antenna system includes a first pair of flag antennas and a second pair of flag antennas, wherein one of the first or second pairs of flag antennas are primary antennas and another of the first or second pairs of flag antennas are diversity antennas, wherein a first flag of the first pair of flag antennas is utilized during middle and high band communications, wherein a third flag of the second pair of flag antennas is utilized during middle and high band communications, wherein the first pair of flag antennas have a first single feed point and are connected via a first transmission line, wherein the first pair of flag antennas are positioned in proximity to a bottom of the mobile communication device, wherein the second pair of flag antennas have a second single feed point and are connected via a second transmission line, and wherein the second pair of flag antennas are positioned in proximity to a side of the mobile communication device; a group of inductors coupled with the first and second pairs of flag antennas; a matching network coupled with the transceiver and the antenna system, wherein the matching network comprises a tunable reactive element; a tuning sensor, wherein the tuning sensor measures one or more signal parameters; and a controller coupled with the matching network, wherein the controller detects an impedance change of the antenna system, wherein the controller receives a first signal parameter from the tuning sensor and determines a first efficiency metric for the matching network based on the first signal parameter, wherein the controller switches the primary antennas to operate in a diversity state and switches the diversity antennas to operate in a primary state based on the impedance change and the first efficiency metric, wherein the controller receives a second signal parameter from the tuning sensor and determines a second efficiency metric for the matching network based on the second signal parameter, wherein the controller adjusts the tunable reactive element according to the second efficiency metric to provide impedance tuning. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An antenna system, comprising:
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a first pair of flag antennas having a first single feed point and being connected with a transceiver of a mobile communication device, wherein the first pair of flag antennas are primary antennas; a second pair of flag antennas having a second single feed point and being connected with the transceiver of the mobile communication device, wherein the second pair of flag antennas are diversity antennas; and a group of inductors coupled with the first and second pairs of flag antennas, wherein the first pair of flag antennas are positioned in proximity to a bottom of the mobile communication device, wherein the second pair of flag antennas are positioned in proximity to a side of the mobile communication device, and wherein the first pair of flag antennas and the second pair of flag antennas operate in identical frequency bands; a matching network coupled to the antenna system, wherein the matching network comprises a tunable reactive element; a tuning sensor, wherein the tuning sensor measures one or more signal parameters; and a controller coupled with the matching network, wherein the controller detects an impedance change of the antenna system, wherein the controller receives a first signal parameter from the tuning sensor and determines a first efficiency metric for the matching network based on the first signal parameter, wherein the controller switches the primary antennas to operate in a diversity state and switches the diversity antennas to operate in a primary state based on the impedance change and the first efficiency metric, wherein the controller receives a second signal parameter from the tuning sensor and determines a second efficiency metric for the matching network based on the second signal parameter, wherein the controller adjusts the tunable reactive element according to the second efficiency metric to provide impedance tuning. - View Dependent Claims (9, 10, 11, 12)
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13. A communication device, comprising:
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a transceiver; an antenna system coupled with the transceiver, wherein the antenna system includes a first pair of antennas and a second pair of antennas, wherein one of the first or second pairs of antennas are primary antennas and another of the first or second pairs of antennas are diversity antennas, wherein the first pair of antennas and the second pair of antennas operate in identical frequency bands, wherein the first pair of antennas have a first single feed point and are connected via a first transmission line, wherein the first pair of antennas are positioned in proximity to a bottom of the communication device, wherein the second pair of antennas have a second single feed point and are connected via a second transmission line, and wherein the second pair of antennas are positioned in proximity to a side of the communication device; a matching network coupled with the transceiver and the antenna system, wherein the matching network comprises a tunable reactive element; a tuning sensor, wherein the tuning sensor measures one or more signal parameters; and a controller coupled with the matching network, wherein the controller detects an impedance change of the antenna system, wherein the controller receives a first signal parameter from the tuning sensor and determines a first efficiency metric for the matching network based on the first signal parameter, wherein the controller switches the primary antennas to operate in a diversity state and switches the diversity antennas to operate in a primary state based on the impedance change and the first efficiency metric, wherein the controller receives a second signal parameter from the tuning sensor and determines a second efficiency metric for the matching network based on the second signal parameter, wherein the controller adjusts the tunable reactive element according to the second efficiency metric to provide impedance tuning. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification