Invention Grant
US08665991B2 Communications device with separate I and Q phase power amplification having selective phase and magnitude adjustment and related methods
有权
具有分离的I和Q相功率放大的通信装置具有选择性相位和幅度调整及相关方法
- Patent Title: Communications device with separate I and Q phase power amplification having selective phase and magnitude adjustment and related methods
- Patent Title (中): 具有分离的I和Q相功率放大的通信装置具有选择性相位和幅度调整及相关方法
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Application No.: US13869241Application Date: 2013-04-24
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Publication No.: US08665991B2Publication Date: 2014-03-04
- Inventor: Lizhong Zhu , George Soliman Mankaruse , Michael Stephen Corrigan , Perry Jarmuszewski , Oleksiy Kravets , Kent Arnold Nickerson , Nagula Tharma Sangary
- Applicant: Research in Motion Limited
- Applicant Address: CA Waterloo, Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Main IPC: H04K1/02
- IPC: H04K1/02
Abstract:
A communications device may include an In-phase (I) circuit having an In-phase modulator and mixer circuit, and an I power amplifier circuit coupled thereto, the I circuit configured to modulate and amplify a digital baseband I signal to generate an amplified I signal, and a Quadrature (Q) circuit having a Q modulator and mixer circuit, and a Q power amplifier circuit coupled thereto, the Q circuit configured to modulate and amplify a digital baseband Q signal to generate an amplified Q signal separate from the amplified I signal. A processor selectively switches the digital baseband I signal and the digital baseband Q signal between the I and Q signal inputs to provide selective phase shifting for the digital baseband I and Q signals.
Public/Granted literature
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