MULTI-ANTENNA WIRELESS DEVICE WITH POWER AMPLIFIERS HAVING DIFFERENT CHARACTERISTICS
First Claim
1. An apparatus comprising:
- a first power amplifier configured to amplify a first input signal and provide a first output signal for a first antenna; and
a second power amplifier configured to amplify the first input signal or a second input signal and provide a second output signal for a second antenna, the first and second power amplifiers having different characteristics.
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Accused Products
Abstract
A wireless device with power amplifiers having different characteristics to support transmission on multiple antennas is disclosed. These power amplifiers may have different gain, different maximum output power levels, etc. in order to meet requirements of different wireless systems. In an exemplary design, an apparatus includes first and second power amplifiers having different characteristics. The first power amplifier amplifies a first input signal and provides a first output signal for a first antenna. The second power amplifier amplifies the first input signal or a second input signal and provides a second output signal for a second antenna, e.g., in a MIMO mode or a transmit diversity mode. Only the first or second power amplifier amplifies another input signal and provides another output signal to the first antenna, e.g., in a CDMA mode or a GSM mode.
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Citations
22 Claims
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1. An apparatus comprising:
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a first power amplifier configured to amplify a first input signal and provide a first output signal for a first antenna; and a second power amplifier configured to amplify the first input signal or a second input signal and provide a second output signal for a second antenna, the first and second power amplifiers having different characteristics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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amplifying a first input signal with a first power amplifier to obtain a first output signal for a first antenna; and amplifying the first input signal or a second input signal with a second power amplifier to obtain a second output signal for a second antenna, the first and second power amplifiers having different characteristics. - View Dependent Claims (15, 16, 17, 18)
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19. An apparatus comprising:
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first means for amplifying configured to amplify a first input signal and provide a first output signal for a first antenna; and second means for amplifying configured to amplify the first input signal or a second input signal and provide a second output signal for a second antenna, the first means for amplifying and the second means for amplifying having different characteristics. - View Dependent Claims (20, 21, 22)
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Specification