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Millimeter-wave Reconfigurable Power Amplifier and Transmitter Architectures with Antenna Interfaces
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| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Millimeter-wave Reconfigurable Power Amplifier and Transmitter Architectures with Antenna Interfaces. |
| 개인저자 | Chappidi, Chandrakanth Reddy. |
| 단체저자명 | Princeton University. Electrical Engineering. |
| 발행사항 | [S.l.]: Princeton University., 2019. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2019. |
| 형태사항 | 199 p. |
| 기본자료 저록 | Dissertations Abstracts International 81-05B. Dissertation Abstract International |
| ISBN | 9781687985392 |
| 학위논문주기 | Thesis (Ph.D.)--Princeton University, 2019. |
| 일반주기 |
Source: Dissertations Abstracts International, Volume: 81-05, Section: B.
Advisor: Sengupta, Kaushik. |
| 이용제한사항 | This item must not be sold to any third party vendors. |
| 요약 | Wireless communication is undergoing a fundamental transformation as the new spectrum in the millimeter-wave (mm-Wave) frequencies (30-300 GHz) opens up to serve as the backbone for the next-generation wireless infrastructure. The application range is expected to be extremely heterogeneous ranging from extremely high-speed cellular connectivity, automotive-to-anything (V2x), augmented reality (AR), virtual reality (VR) to wireless backhaul and last mile connectivity. In this, mm-Wave phased arrays, and massive multiple-input-multiple-output (MIMO) systems will serve as the wireless front-end elements to allow adaptive beamforming, tracking and spatial multiplexing for high-spectral efficiency. However, as multiple spectral regions across 20-100 GHz become available, it will be essential to move from current frequency-specific designs that operate at known frequencies to dynamic spectrally-adaptive architectures that learn from the available spectral information. At the hardware level, such reconfigurability is hugely challenging to achieve in the mm-Wave transceiver. Specifically, for the transmitter (Tx) architecture, there is a substantial trade-off between output power, energy efficiency, spectral reconfigurability and spectral efficiency (linearity). This thesis presents a generalized multi-port network synthesis approach to enable active impedance synthesis for simultaneously broadband operation with high peak and back-off efficiency in an mm-Wave power amplifier (PA) architecture. We base the approach on generalized active load-pulling across a series of interacting mm-Wave digital-to-analog (DAC) cells where we can map the optimal operation across frequency and back-off into a set of asymmetric codes. Multiple proof-of-concept architectures are presented to enable back-off efficient wide-band operation across 25-105 GHz. Additionally, we present an extension of this architecture to overcome load-impedance mismatch events at the output of the transmitter and wide-band antenna interfaces for reconfigurable transmitter front-ends. |
| 일반주제명 | Electrical engineering. |
| 언어 | 영어 |
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