Invention Grant
- Patent Title: Antenna tuning on an impedance trajectory
- Patent Title (中): 天线调谐阻抗轨迹
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Application No.: US13221196Application Date: 2011-08-30
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Publication No.: US08712355B2Publication Date: 2014-04-29
- Inventor: Gregory R. Black , William P. Alberth
- Applicant: Gregory R. Black , William P. Alberth
- Applicant Address: US IL Chicago
- Assignee: Motorola Mobility LLC
- Current Assignee: Motorola Mobility LLC
- Current Assignee Address: US IL Chicago
- Main IPC: H04B1/18
- IPC: H04B1/18

Abstract:
A method, transceiver integrated circuit (IC), and communications device for generating antenna tuning states derived from a pre-established trajectory of tuning states to adjust a detected signal level towards a preset, given value. A tuning state generation (TSG) controller determines whether a detected signal level matches a given value. If the detected signal level does not match the given value, the TSG controller selects an initial preset tuning state from a pre-established trajectory corresponding to a pre-identified operating condition that best matches a current operating condition. The TSG logic forwards the initial preset tuning state to the antenna tuner to trigger impedance transformation. Following generation of the initial preset tuning state, the controller receives an updated detected signal level. If the updated detected signal level fails to match the given value, the controller generates an incremental tuning state that is interpolated between the initial and a final preset tuning states.
Public/Granted literature
- US20130052967A1 ANTENNA TUNING ON AN IMPEDANCE TRAJECTORY Public/Granted day:2013-02-28
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