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Systems and methods for tuning antennas in wireless communication devices

一种无线通信设备、无线通信的技术，应用在传输系统、基带系统零部件、电气元件等方向，能够解决信号性能劣化等问题，达到消除传输性能的劣化的效果

Active Publication Date: 2016-01-06
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These changes in electrical characteristics may cause changes in the ratio of incident and reflected power sent to the antenna, which may result in a degradation of the performance of the transmitted signal

Method used

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  • Systems and methods for tuning antennas in wireless communication devices
  • Systems and methods for tuning antennas in wireless communication devices
  • Systems and methods for tuning antennas in wireless communication devices

Examples

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Embodiment Construction

[0011] figure 1 A block diagram of an example wireless communication system 100 is shown in accordance with certain embodiments of the present disclosure. For brevity, figure 1 Only two terminals 110 and two base stations 120 are shown in . Terminals 110 may also be called remote stations, mobile stations, access terminals, user equipment (UE), wireless communication devices, cellular telephones, or some other terminology. Base station 120 may be a fixed station and may also be called an Access Point, NodeB, or some other terminology.

[0012] Terminal 110 may or may not be able to receive signals from satellite 130 . The satellites 130 may belong to a satellite positioning system such as the well-known Global Positioning System (GPS). Each GPS satellite may transmit a GPS signal encoded with information that allows GPS receivers on Earth to measure the time of arrival of the GPS signal. Measurements for a sufficient number of GPS satellites can be used to accurately esti...

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PUM

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Abstract

The present invention relates to systems and methods for tuning antennas in wireless communication devices. According to some embodiments of the present disclosure, the control path of the wireless communication device may include a radio frequency coupler having a coupling port and a terminating port, the radio frequency coupler being configured to couple to the At least in part such that the coupled port carries a first signal indicative of incident power sent to an antenna coupled to the antenna tuner and the terminating port carries a second signal indicative of reflected power reflected by the antenna. The control path may also include a control module configured to communicate one or more control signals to the antenna tuner for controlling an impedance of the antenna tuner based at least on the first signal and the second signal.

Description

technical field [0001] The present disclosure relates generally to wireless communications, and more particularly to tuning antennas in wireless communications devices. Background technique [0002] Wireless communication systems are used in various telecommunications systems, television, radio and other media systems, data communication networks, and other systems that use wireless transmitters and wireless receivers to transmit information between remote points. A transmitter is an electronic device that propagates electromagnetic signals, such as radio, television, or other telecommunications, usually by means of an antenna. A transmitter typically includes digital signal processing circuitry that encodes a data signal, upconverts it to a radio frequency signal, and passes it to a signal amplifier that receives the radio frequency, amplifies the signal by a predetermined gain, and transmits it through an antenna through amplified signal. A receiver, on the other hand, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04L25/02
CPCH04B1/40H04B1/401H04B1/04H04B1/525H04B1/0458H04B1/0053
Inventor 普拉文·普莱马坎森许兵马克·基尔申曼阿米特·巴维斯丹尼尔·施瓦兹马海布·拉曼
Owner APPLE INC