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A microring depletion modulator is demonstrated with T-shaped lateral p-n junctions used to realize efficient modulation while maximizing the RC limited bandwidth. The device having a 3 dB bandwidth of 13 GHz has been fabricated in a…

Optics · Physics 2016-03-30 Luca Alloatti , Dinis Cheian , Rajeev Jagga Ram

Noise level frequently set the basic limit on the smallest signal. New noise reduction technology and amplifiers voltage-noise density, yet still offer high speed, high accuracy, and low power solution. Low noise amplifiers always play a…

Signal Processing · Electrical Eng. & Systems 2018-07-30 A. Abbasi , N. Sulaiman , Rozita Teymourzadeh

We consider the stability and performance of a discrete-time control loop used as a dynamic nuller in the presence of a relatively large time delay in its feedback path. Controllers of this form occur in mm-wave telescopes using…

Instrumentation and Methods for Astrophysics · Physics 2022-07-26 Graeme Smecher , Tijmen de Haan , Matt Dobbs , Joshua Montgomery

We demonstrate a lumped-element Josephson parametric amplifier, using a single-ended design that includes an on-chip, high-bandwidth flux bias line. The amplifier can be pumped into its region of parametric gain through either the input…

Surface plasmon polariton amplification gives the possibility to overcome strong absorption in the metal and design truly nanoscale devices for on-chip photonic circuits. However, the process of stimulated emission in the gain medium is…

Optics · Physics 2019-04-29 Andrey A. Vyshnevyy , Dmitry Yu. Fedyanin

This paper presents a compact programmable biphasic stimulator for cochlear implants. By employing double-loop negative feedback, the output impedance of the current generator is increased, while maximizing the voltage compliance of the…

Neurons and Cognition · Quantitative Biology 2015-02-03 W. Ngamkham , M. N. van Dongen , W. A. Serdijn , C. J. Bes , J. J. Briaire , J. H. M. Frijns

The lack of high power integrated lasers have been limiting silicon photonics. Despite much progress made in chip-scale laser integration, power remains below the level required for key applications. The main inhibiting factor for high…

We present the design of a low-power 4-bit 1GS/s folding-flash ADC with a folding factor of two. The design of a new unbalanced double-tail dynamic comparator affords an ultra-low power operation and a high dynamic range. Unlike the…

Hardware Architecture · Computer Science 2016-12-16 Bayan Nasri , Sunit P. Sebastian , Kae-Dyi You , RamKumar RanjithKumar , Davood Shahrjerdi

In this paper, a wideband high-gain 2 ? 2-element subarray is presented for 60 GHz band applications. The antenna is fed with waveguide-fed cavity backed configuration and designed entirely via simple rectangular apertures. To improve…

Signal Processing · Electrical Eng. & Systems 2019-04-05 Saeideh Shad , Hani Mehrpouyan

This letter presents a novel adaptive power division strategy, which uses two rectifying diodes with nonlinear impedance characteristics that are configured in parallel to function optimally at their individual power levels. Through the…

Applied Physics · Physics 2026-01-09 Zhongqi He , Liping Yan , Changjun Liu

Nanometer scale power amplifiers (PA) at sub-THz suffer from severe parasitic effects that lead to experience limited maximum frequency and reduced power performance at the device transceiver front end. The integrated circuits researchers…

Networking and Internet Architecture · Computer Science 2024-02-13 Jun Yan Leea , Duo Wu , Xuanrui Guoc , Mohammad Mahdi Ariannejad , Mohammad Arif Sobhan Bhuiyan , Mahdi H. Miraz

A 274-GHz signal generator with an on-chip antenna in a quad-flat no-leads (QFN) package is demonstrated. The circuit is fabricated in a 65-nm Complementary Metal Oxide Semiconductor (CMOS) process. The effective isotropic radiated power…

Signal Processing · Electrical Eng. & Systems 2019-06-13 P. R. Byreddy , Z. Chen , H. S. Bakshi , W. Choi , A. Blanchard , K. K. O

A directional superconducting parametric amplifier in the GHz frequency range is designed and analyzed, suitable for low-power read-out of microwave kinetic inductance detectors employed in astrophysics and when combined with a…

Superconductivity · Physics 2018-06-20 M. P. Westig , T. M. Klapwijk

Transformer-based speech enhancement models yield impressive results. However, their heterogeneous and complex structure restricts model compression potential, resulting in greater complexity and reduced hardware efficiency. Additionally,…

Hardware Architecture · Computer Science 2025-03-28 Ci-Hao Wu , Tian-Sheuan Chang

This paper proposes a new topology of a non-isolated two-phase interleaved boost DC-DC converters with modified Greinacher voltage multiplier cells (VMCs) in continuous conduction mode (CCM). The proposed topology can quickly achieve a high…

Instrumentation and Detectors · Physics 2020-04-14 Mohammad Altimania , Mohamad Saleh Sanjari Nia , Mehdi Ferdowsi , Pourya Shamsi

In this work, a new method for designing an analog circuit for deep sub-micron CMOS fabrication processes is proposed. The proposed method leverages the regression algorithms with the transistor circuit model to size a transistor in 0.18 um…

Other Computer Science · Computer Science 2024-01-31 Alireza Bagheri Rajeoni

Due to the pervasive nature of decoherence, protection of quantum information during transmission is of critical importance for any quantum network. A linear amplifier that can enhance quantum signals stronger than their associated noise…

A measurement scheme to perform a repeatable phase detection on a two-mode field is presented. The interaction with the probe state (the output state of a phase-insensitive high-gain amplifier) is described by a Hamiltonian which is…

Quantum Physics · Physics 2013-10-29 G. M. D'Ariano , M. F. Sacchi

Advances in power electronics have made it possible to achieve high power levels, e.g., reaching GW in grids, or alternatively high output bandwidths, e.g., beyond MHz in communication. Achieving both simultaneously, however, remains…

Signal Processing · Electrical Eng. & Systems 2023-09-13 Jinshui Zhang , Boshuo Wang , Xiaoyang Tian , Angel Peterchev , Stefan Goetz

This expository manuscript presents generalized expressions for the low-frequency voltage gain and terminal impedances of each of the three fundamental bipolar-amplifier topologies (i.e., common emitter, common base, and common collector).…

Hardware Architecture · Computer Science 2023-09-19 Brian Hong