发明名称 |
MOBILE WIRELESS COMMUNICATIONS DEVICE WITH SEPARATE IN-PHASEAND QUADRATURE POWER AMPLIFICATION |
摘要 |
A mobile wireless communications device includes a housing an antenna, and radio frequency (RF) circuitry. A transceiver is connected to the antenna and a processor is operative with the RF circuitry. The transceiver includes an In-phase and Quadrature (I/Q) Modulation and Power Amplification circuit having an In-phase (I) circuit with a modulator mixer and power amplifier circuit. A Quadrature (Q) circuit includes a modulator mixer and power amplifier circuit. A power combiner receives the separately amplified In-phase and Quadrature signals and sums and outputs the signals as a combined I and Q signal. The I and Q circuits are isolated from the combined I and Q signal to enhance antenna matching and transmitted radiated power (TRP) and reduce harmonic emission from the power amplification circuits. |
申请公布号 |
CA2668528(A1) |
申请公布日期 |
2010.01.15 |
申请号 |
CA20092668528 |
申请日期 |
2009.06.11 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
JARMUSZEWSKI, PERRY;ZHU, LIZHONG;MANKARUSE, GEORGE;CORRIGAN, MICHAEL |
分类号 |
H04W88/02;H03F3/20;H04M1/02 |
主分类号 |
H04W88/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|