SBIR Phase I: Monolithic Superconducting Rapid Single Flux Quantum (RSFQ) Phase-Locked Loop for Signal Processing Applications Above 20 GHz

SBIR 第一阶段：用于 20 GHz 以上信号处理应用的单片超导快速单通量量子 (RSFQ) 锁相环

• 批准号: 9761142
• 负责人: Michael Pambianchi
• 金额: $ 10万
• 依托单位: HYPRES, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-01-01 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9761142&HistoricalAwards=false
• 关键词: SBIR; Phase; Monolithic; Superconducting; Rapid

This Small Business Innovation Research project from HYPRES, Inc. proposes the development of a monolithic phase-locked looped (PLL) circuit operating at frequencies in the range 20 - 100 GHz. HYPRES proposes to develop a superconducting PLL circuit using Rapid Single Flux Quantum (RSFQ) logic elements for the phase detector, the voltage-controlled oscillator (VCO), and the frequency divider for looking to a lower reference frequency. In Phase I, HYPRES will demonstrate a PLL which locks with a phase precision of 10 to the minus 4 radian at 50 GHz and follows the reference signal over a range of 5 GHz. This significant achievement requires an on-chip VCO with inherent quality factor of 10,000 and a feedback loop bandwidth of at least 5 MHz. In the next phase of the research, HYPRES will develop a frequency tracking demodulator with clock recovery using the PLL developed in Phase I, capable of operating at 30 GHz. There is a significant need for inexpensive, tunable, phaselocked clock sources in this frequency range for signal processing in scientific and communications applications. These applications include ultrafast clocking of superconducting digital circuits and acquisition, modulation, demodulation, and tracking of carriers above 20 GHz. Gunn diodes are already available as high-Q microwave sources in the frequency range 20 - 100 GHz. They are expensive, however, and must be locked by even more expensive electronics (typical cost, circa $30,000). The proposed approach will yield a much less expensive option (typical cost - $1000) for creating phase-locked clock signals in the frequency range 20 - 100 GHz and directly useable by RSFQ digital signal processing circuits. The primary commercial application is in satellite communications hardware, which is a market worth over $100 M per year.

这个小企业创新研究项目由HYPRES，Inc.提出了一种单片锁相环（PLL）电路的工作频率在20 - 100 GHz的发展。 HYPRES提出开发一种超导PLL电路，使用快速单通量量子（RSFQ）逻辑元件作为相位检测器，压控振荡器（VCO）和分频器，用于寻找较低的参考频率。 在第一阶段，HYPRES将展示一个PLL，它在50 GHz时以10到负4弧度的相位精度锁定，并在5 GHz的范围内跟踪参考信号。 这一重大成就需要一个固有品质因数为10，000、反馈环路带宽至少为5 MHz的片内VCO。 在下一阶段的研究中，HYPRES将开发一种频率跟踪解调器，使用第一阶段开发的PLL进行时钟恢复，能够在30 GHz下工作。 有一个显着的需要，廉价的，可调的，锁相时钟源在这个频率范围内的信号处理在科学和通信应用。 这些应用包括超导数字电路的超快时钟以及20 GHz以上载波的采集、调制、解调和跟踪。 古恩二极管已经可用作频率范围为20 - 100 GHz的高Q微波源。 然而，它们是昂贵的，并且必须由更昂贵的电子设备锁定（通常成本约为30，000美元）。 所提出的方法将产生一个便宜得多的选择（典型成本- $1000），用于创建频率范围为20 - 100 GHz的锁相时钟信号，并直接可由RSFQ数字信号处理电路。 主要的商业应用是卫星通信硬件，这是一个每年价值超过1亿美元的市场。