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5 November 2020 Design of power amplifier for spin manipulation system based on nitrogen-vacancy centers
Zhiqiang Han, Ning Zhang, Lixia Xu, Mingxin Li, Heng Yuan
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Proceedings Volume 11564, AOPC 2020: Optoelectronics and Nanophotonics; and Quantum Information Technology; 115640Q (2020) https://doi.org/10.1117/12.2580319
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China
Abstract
This paper presents the design of a power amplifier (PA) used in a magnetic measurement system based on nitrogenvacancy (NV) centers in diamond. The core of the PA is CGH40035F from CREE, which can realize a larger output power and higher power added efficiencies (PAE) over wide frequency ranges. Through extensive source-pull and load-pull, the best load impedance and source impedance at the maximum output power are found, and the input and output impedance matching are achieved by the method of hybrid matching, which uses microstrip lines and capacitors. The simulation results show that the PA has a small-signal gain greater than 16 dB at 2.87 GHz, and the input return loss S11 lower than - 17.7 dB. After calculation, the gain fluctuation in the 2.74-3.00 GHz is only 0.7 dB. Moreover, the output power of the 1 dB compression point P1dB of the PA is 40.5 dBm with above 40% PAE, and the large-signal power gain is greater than 15 dB. The above data proves that the designed PA has extremely high performance and it is suitable for the manipulation of NV centers, which contributes to the integration of the magnetic measurement system.
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Zhiqiang Han, Ning Zhang, Lixia Xu, Mingxin Li, and Heng Yuan "Design of power amplifier for spin manipulation system based on nitrogen-vacancy centers", Proc. SPIE 11564, AOPC 2020: Optoelectronics and Nanophotonics; and Quantum Information Technology, 115640Q (5 November 2020); https://doi.org/10.1117/12.2580319
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KEYWORDS
Amplifiers
Sensing systems
Device simulation
High power microwaves
Spin polarization
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