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Registered APPARATUS FOR CALIBRATING AMPLITUDE AND PHASE ERRORS, MULTIPORT AMPLIFIER INCLUDING THE SAME, AND METHOD OF AMPLIFYING THE MULTIPORT AMPLIFIER
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APPARATUS FOR CALIBRATING AMPLITUDE AND PHASE ERRORS, MULTIPORT AMPLIFIER INCLUDING THE SAME, AND METHOD OF AMPLIFYING THE MULTIPORT AMPLIFIER
- Inventors
- Seong Mo Moon, Shin Dong Hwan, In Bok Yom
- Application No.
- 13495435 (2012.06.13)
- Publication No.
- 20120319771 (2012.12.20)
- Registration No.
- 8588343 (2013.11.19)
- Country
- UNITED STATES
- Project Code
- 11PR4100, Development of Flexible Output Power Allocation Technology for Ka Band Satellite Service Area, In Bok Yom
- Abstract
- A multiport amplifier modulates a reference quadrature phase shift keying (QPSK) signal using an input RF signal to an input hybrid network, generates a plurality of binary phase shift keying (BPSK) signals by demodulating RF signals that are amplified by a plurality of power amplifiers, detects an amplitude error and a phase error of two corresponding amplified RF signals by comparing a QPSK signal that is generated by coupling two RF signals having a phase difference of 90° among the plurality of BPSK signals with a reference QPSK signal, and compensates the detected amplitude error and phase error.
- KSP Keywords
- Amplitude and phase errors, Amplitude error, Binary phase shift keying(BPSK), Phase Difference, Phase shift, QPSK signal, Quadrature Phase, Quadrature Phase Shift Keying(QPSK), RF signal, hybrid network, phase error, phase shift keying, power amplifiers(PAs)