Invention Grant
- Patent Title: Quadrature communications device with I antennas and Q antennas and modulated power supply and related methods
- Patent Title (中): 具有I天线和Q天线的正交通信设备和调制电源及相关方法
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Application No.: US13049200Application Date: 2011-03-16
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Publication No.: US08553802B2Publication Date: 2013-10-08
- Inventor: Khurram Muhammad
- Applicant: Khurram Muhammad
- 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: H04L27/00
- IPC: H04L27/00
Abstract:
A communications device may include an In-phase (I) power amplifier configured to generate an I amplified signal, a Quadrature (Q) power amplifier configured to generate a Q amplified signal, an I digital-to-analog converter (DAC) configured to generate an I signal, and a Q DAC configured to generate a Q signal. The communications device may also include an I power supply circuit coupled to the I power amplifier and to the I DAC and configured to cause the I power amplifier to modulate an I carrier signal into the I amplified signal based upon the I signal, a Q power supply circuit coupled to the Q power amplifier and to the Q DAC and configured to cause the Q power amplifier to modulate a Q carrier signal into the Q amplified signal based upon the Q signal, and at least one antenna coupled to the I and Q power amplifiers.
Public/Granted literature
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