상세정보
학술지
Reconfigurable K-Band MIMO Transmission With On-Board Vector Calibration
- 발행일
- 201809
- 출처
- IEEE Access, v.6, pp.49358-49365
- ISSN
- 2169-3536
- 출판사
- IEEE
- 협약과제
- 18HR3700, [전문연구실] 위성탑재체 핵심원천기술 개발 , 장동필
- 초록
- This paper presents a reconfigurable multi-input and multi-output amplifier architecture with on-board multiport vector calibration (MVC) for flexible multi-channel transmission in K-band. The proposed architecture controls phases of K-band transmission path to generate a diversity of source-To-Target channel power assignment. In addition, the proposed calibration circuitry detects relative amplitude and phase of each transmission path and ensures high isolation at each output port. The proposed architecture consists of waveguide hybrid matrices, amplifier modules, including phase shifter, attenuator and 0째/180째 phase inverter monolithic microwave integrated circuits (MMICs), and a MVC block. The MVC is configured with a modulator, two QPSK demodulator MMICs, a digital signal processing board, and 16 digital-To-Analog converter units. For the verification of K-band applications, 4\times4 multi-channel front end was implemented and showed reconfigurable performance as well as stable port-To-port isolation characteristics better than 26 dB from 19.5 to 22.5 GHz.
- KSP 제안 키워드
- 5 GHz, Digital Signal Processing, Digital to Analog Converter, Front-End, K-band, MIMO transmission, Microwave monolithic integrated circuits(MMIC), Multi-input, Multi-output, Multiple input multiple output(MIMO), On-board