Recent Advances in Integrated Non-reciprocal Devices
A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "E：Engineering and Technology".
Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 295
Special Issue Editor
Interests: the intersection of integrated circuits and systems; electromagnetic; communications; biomedical systems; quantum computing systems
Special Issue Information
Dear Colleagues,
Non-reciprocal devices are ubiquitously used in modern communication, radar and sensing technologies. For example, isolators are two-port non-reciprocal devices that allow a signal to be transmitted in only one direction, and they are used to protect high-power amplifiers from back reflections from the antenna. Similarly, circulators are three-port non-reciprocal devices that route a signal in a circular fashion, and they can be used to realize low-loss shared antenna interfaces with simultaneous-transmit-and-receive functionality. Cryogenic circulators and isolators are also commonly used in quantum computing systems to protect the extremely sensitive and cold qubits from room temperature noise. Additionally, these non-reciprocal devices also find application in emerging technologies such as STAR-MRI to separate the strong probe signal from the weak reflected signal.
Traditionally, these non-reciprocal components are realized using ferrites that exhibit non-reciprocal properties under the application of strong magnetic bias. However, these ferrites-based non-reciprocal devices are bulky, expensive and require high deposition temperatures for fabrication, thereby making them incompatible with modern-day semiconductor fabrication processes. The lack of integrability with the semiconductor process limits their application in portable, low-cost, scalable technologies. Recognizing the need for integrated non-reciprocal components and their potential to disrupt the technologies ranging from communication, radar, optics, medial and quantum computing, there has been significant interest in realizing integrated non-reciprocal devices. This Special Issue of Micromachines titled “Recent Advances in Integrated Non-Reciprocal Devices” requests manuscript submissions pertaining to this research goal, in order to employ materials and/or techniques to integrate non-reciprocal components to semiconductor media. Topics of interest for this Special Issue include but are not limited to: RF, millimeter wave and optical non-reciprocal devices based on time-modulation, non-linearity, active current/voltage transistors, and non-conventional material/fabrication processes that can be integrated with semiconductors.
Dr. Aravind Nagulu
Guest Editor
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Keywords
- circulators
- isolators
- non-magnetic
- nonreciprocity
- time-modulation
- non-linearity
- CMOS
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