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A method for increasing efficiency of radio frequency (RF) amplifier employing laterally diffused metal oxide semiconductor (LDMOS) transistors coupled to an RF exciter depending on the emission mode of modulated RF input signals generated…

Signal Processing · Electrical Eng. & Systems 2024-05-31 Srdan Milic , Igor Krois

Large-scale cloud radio access network (LS-CRAN) is a highly promising next-generation cellular network architecture whereby lots of base stations (BSs) equipped with a massive antenna array are connected to a cloud-computing based central…

Information Theory · Computer Science 2016-08-09 Kyung Jun Choi , Kwang Soon Kim

A prototype optical-link board has been developed for the ATLAS Liquid Argon Calorimeter Phase-2 upgrade. The board consists of 24 lpGBT chips and 8 VTRx+ modules and demonstrates the full optical link design of the future front-end board.…

Instrumentation and Detectors · Physics 2022-05-25 X. Huang , C. Liu , A. Deiana , B. Deng , D. Gong , L. Hasley , S. Hou , T. Liu , H. Sun , J. Ye , L. Zhang , W. Zhang

Shanghai Synchrotron Radiation Facility (SSRF) is a 3.5 GeV storage ring with a bunch rate of 499.654 MHz, harmonic number of 720, and circumference of 432 meters. SSRF injection works at 3.5 GeV, where the multi-bunch instabilities limit…

Instrumentation and Detectors · Physics 2019-07-10 Linsong Zhan , Lei Zhao , Jinxin Liu , Shubin Liu , Qi An

The Accelerator Test Facility 2 (ATF2) is a scaled demonstrator system for final focus beam lines of linear high energy colliders. This paper describes the high resolution cavity beam position monitor (BPM) system, which is a part of the…

Current radio frequency (RF) sensors at the Edge lack the computational resources to support practical, in-situ training for intelligent spectrum monitoring, and sensor data classification in general. We propose a solution via Deep Delay…

Signal Processing · Electrical Eng. & Systems 2021-07-01 Silvija Kokalj-Filipovic , Paul Toliver , William Johnson , Rob Miller

Hybrid acoustic-RF systems offer excellent ranging accuracy, yet they typically come at a power consumption that is too high to meet the energy constraints of mobile IoT nodes. We combine pulse compression and synchronized wake-ups to…

Systems and Control · Electrical Eng. & Systems 2020-03-10 Bert Cox , Liesbet Van der Perre , Stijn Wielandt , Geoffrey Ottoy , Lieven De Strycker

For reliable and secure power grid operation, AC state-estimation (ACSE) must provide certain guarantees of convergence while being resilient against bad-data. This paper develops a circuit-theoretic weighted least absolute value (WLAV)…

Systems and Control · Electrical Eng. & Systems 2021-03-02 Shimiao Li , Amritanshu Pandey , Larry Pileggi

In this work, the SLM-based phase retrieval system will be used to inspect carbon reinforced plastics samples (CFRP) under applying a thermal load. For this purpose, the system is used to capture a sequence of 8 spatially separated…

The task of this work was to design and later produce a low-power (single supply 5 - 30 V, dual supply +-2.5 V and +-15 V) rail-to-rail operational amplifier aRD820 with low voltage noise (<4 uV, p-p. 0.1 to 10 Hz), ultralow input bias…

Instrumentation and Detectors · Physics 2024-09-23 Dmitry Kostrichkin , Sergey Rudenko , Mihails Lapkis , Aigars Atvars

Non-contact scanning probe microscopy (SPM) has developed into a powerful technique to image many different properties of samples. The conventional method involves monitoring the amplitude, phase or frequency of a cantilever oscillating at…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Manan Mehta , Venkat Chandrasekhar

A clock synchronizing circuit for repeaterless low swing interconnects is presented in this paper. The circuit uses a delay locked loop (DLL) to generate multiple phases of the clock, of which the one closest to the center of the eye is…

Hardware Architecture · Computer Science 2015-10-15 Naveen Kadayinti , Maryam Shojaei Baghini , Dinesh K. Sharma

We address the Light-Shining-Through-a-thin-Wall (LSthinW) laboratory setup to estimate the sensitivity of axion-like particle (ALP) detection using two radio-frequency (RF) cavities immersed in a static magnetic field. We analytically…

High Energy Physics - Phenomenology · Physics 2025-07-01 Dmitry Salnikov , Petr Satunin , D. V. Kirpichnikov

The readout electronics upgrade for the ATLAS Liquid Argon Calorimeters at the CERN Large Hadron Collider requires a radiation-hard ADC. The design of a radiation-hard dual-channel 12-bit 40 MS/s pipeline ADC for this use is presented. The…

Instrumentation and Detectors · Physics 2017-06-07 Jayanth Kuppambatti , Jaroslav Ban , Timothy Andeen , Rex Brown , Ryne Carbone , Peter Kinget , Gustaaf Brooilmans , William Sippach

Photonic integration offers the potential to bring complex high-performance optical systems to the form factor of a compact semiconductor chip. However, the range of system functions accessible critically depends on the extent to which…

The primary accelerator of DCLS (Dalian Coherent Light Source) operates at a repetition rate of 20 Hz now, and the beam is divided at the end of the linear accelera-tor through Kicker to make two 10 Hz beamlines work simultaneously. For the…

Accelerator Physics · Physics 2023-11-16 J. F. Zhu , H. L. Ding , H. K. Li , J. W. Han , X. W. Dai , B. Xu , L. Shi , J. Y. Yang , W. Q. Zhang

The Kalman filter (KF)-based active noise control (ANC) system demonstrates superior tracking and faster convergence compared to the least mean square (LMS) method, particularly in dynamic noise cancellation scenarios. However, in…

Systems and Control · Electrical Eng. & Systems 2024-12-30 Junwei Ji , Dongyuan Shi , Boxiang Wang , Xiaoyi Shen , Zhengding Luo , Woon-Seng Gan

Three generations of full-custom analog integrated circuits designed for low-power, high-speed sampling of Radio-Frequency (RF) transients in excess of the Nyquist minimum have been developed. These 0.25$\mu m$ CMOS devices are denoted the…

Instrumentation and Detectors · Physics 2008-11-26 G. S. Varner , L. L. Ruckman , J. W. Nam , R. J. Nichol , J. Cao , P. W. Gorham , M. Wilcox

The Arcminute Microkelvin Imager (AMI) telescopes located at the Mullard Radio Astronomy Observatory near Cambridge have been significantly enhanced by the implementation of a new digital correlator with 1.2 MHz spectral resolution. This…

A radiation-hard quad-channel 12-bit 40 MSPS pipeline analog-to-digital converter (ADC) has been designed for the trigger readout electronics Phase-I upgrade of the ATLAS Liquid Argon calorimeter, at the CERN Large Hadron Collider. The…

Instrumentation and Detectors · Physics 2020-06-17 T. Andeen , J. Ban , G. Brooijmans , A. Emerman , P. Kinget , J. Kuppambatti , D. Mahon , I. Ochoa , W. Sippach , Q. Wang