Results 71 to 80 of about 47,494 (264)

CMOS Vector Modulator-Based Phase Shifter for Millimeter-Wave Transmitter [PDF]

Journal of Electromagnetic Engineering and Science
A D-band phase shifter for CMOS transmitters in a millimeter-wave imaging system is proposed based on vector modulator configuration. Depending on the phase control biasing, the output impedance variation of phase shifters at the millimeter-wave ...
Ju-Hyeon Park, Ui-Gyu Choi, Hyunwon Moon, Jong-Ryul Yang   +3 more
doaj   +1 more source

Elasticity‐Driven Periodic Polarization Patterns in a Chiral Ferroelectric Nematic Fluid

Advanced Materials, EarlyView.
Chiral polar ferroelectric nematic fluids exhibit spontaneous formation of stripe, square, and hexagonal polarization textures under confinement. Controlled by thickness and anchoring, these patterns produce spatially modulated nonlinear optical responses.
Anej Sterle, Peter Medle Rupnik, Luka Cmok, Aitor Erkoreka, Marta Lavrič, Natan Osterman, Calum J. Gibb, Jordan Hobbs, Josu Martinez‐Perdiguero, Richard J. Mandle, Alenka Mertelj, Nerea Sebastián   +11 more
wiley   +1 more source

Electronically tunable compact inductance simulator with experimental verification

ETRI Journal
A novel inductance simulation circuit employing only two dual-output voltage-differencing buffered amplifiers (DO-VDBAs) and a single capacitance (grounded) is proposed in this paper.
Kapil Bhardwaj, Mayank Srivastava, Anand Kumar, Ramendra Singh, Worapong Tangsrirat   +4 more
doaj   +1 more source

Symbolically Modeled Reverse-Nested Miller Compensation for High-Performance Four-Stage CMOS Amplifiers

تحلیل مدارها، داده ها و سامانه ها
Leveraging nested Miller loops and low-power differential blocks, an efficient frequency compensation is presented. The compensation frequency network emulates the reversed nested Miller approach while the case is a four-stage CMOS amplifier.
Zohreh Mohamadi, Behzad Ghanavati, Jabbar Ganji, Seyyed Sajjad Tabatabaee   +3 more
doaj   +1 more source

Epitaxially Integrated Electro‐Optic KNbO3 Thin Films on Silicon

Advanced Materials, EarlyView.
We demonstrate the first epitaxial integration of electro‐optic KNbO3 thin films on silicon using suboxide molecular‐beam epitaxy. Combining adsorption‐controlled molecular‐beam epitaxy, advanced characterization, and phase‐field modeling, we demonstrate phase‐pure crystalline films mirroring bulk crystals with robust Pockels response, enabling future ...
Sankalpa Hazra, Tobias Schwaigert, Yingxin Zhu, Aiden Ross, Muhammad Aminul Haque Chowdhury, Shun‐Li Shang, Sameer Singh, Zhiyu Zhang, Zhe Wang, Brynn Brower, Saugata Sarker, Suchismita Sarker, Zi‐Kui Liu, Rama K. Vasudevan, Long‐Qing Chen, Yang Yang, Darrell G. Schlom, Venkatraman Gopalan   +17 more
wiley   +1 more source

Sub‐nm2 Ferroelectric Domains via Charged 180° Walls in ZrO2

Advanced Materials, EarlyView.
Ferroelectric ZrO2${\rm ZrO}_2$ thin films host closely spaced charged 180∘$^{\circ }$ domain walls that vertically compress polar domains beyond their lateral half‐unit‐cell limit. These head‐to‐head and tail‐to‐tail walls show distinct bulk‐like structures, natural oxygen‐mediated stabilization, and highly asymmetric mobility, highlighting new ...
Nashrah Afroze, Hamoon Fahrvandi, Guodong Ren, Pawan Kumar, Christopher Nelson, Sarah Lombardo, Mengkun Tian, Ping‐Che Lee, Jiayi Chen, Manifa Noor, Kisung Chae, Sanghyun Kang, Prasanna Venkat Ravindran, Matthew Bergschneider, Gwan Yeong Jung, Pravan Omprakash, Gardy K. Ligonde, Nujhat Tasneem, Dina Triyoso, Steven Consiglio, Kanda Tapily, Robert Clark, Gert Leusink, Jayakanth Ravichandran, Shimeng Yu, Andrew R Lupini, Andrew C Kummel, Kyeongjae Cho, Duk‐Hyun Choe, Nazanin Bassiri‐Gharb, Josh Kacher, Rohan Mishra, Jun Hee Lee, Asif Khan   +33 more
wiley   +1 more source

MINI Logic 1-Bit Adder: A Comparison with Hybrid NMOS-Memristor-Logic Styles Using Ta2O5/Al2O3 Based RRAM Device

Advances in Electrical and Computer Engineering
This study addresses the demand for more efficient logic circuits by focusing on reducing area, power consumption, and delay. As conventional CMOS technology faces scaling and efficiency limitations, integrating emerging memory technologies like ...
NITHYA, N., PARAMASIVAM, K.
doaj   +1 more source

1T‐to‐2H Phase Evolution During Epitaxial Growth of Transition Metal Dichalcogenides

Advanced Materials, EarlyView.
During MOCVD growth of MoS2 and WSe2, a transient metallic 1T phase emerges in early, edge‐rich, chalcogen‐deficient domains and declines as the films ultimately coalesce as 2H material. Together, experiments and ReaxFF simulations link domain size, edge stoichiometry, and vacancies to this evolution.
Andrew R. Graves, Yiru Zhu, Matin Salimi Irdmusa, Nadire Nayir, Thomas V. Mc Knight, Chen Chen, Ke Wang, Adri C. T. van Duin, Joan M. Redwing   +8 more
wiley   +1 more source

Disorder robust, ultra-low power, continuous-wave four-wave mixing in a topological waveguide

Nanophotonics
Four-wave mixing is a widely used nonlinear process for wavelength conversion, parametric amplification and signal regeneration in various Kerr devices, which enables wavelength-tunability and lower-power operation in compact optical systems.
Choi Ju Won, Sohn Byoung-Uk, Chen George F.R., Gao Hongwei, Mitchell William J., Ng Doris K.T., Tan Dawn T.H.   +6 more
doaj   +1 more source

Design of Gate-Driven Quasi Floating Bulk OTA-Based Gm–C Filter for PLL Applications

Iranian Journal of Electrical and Electronic Engineering, 2021
The advancement in the integrated circuit design has developed the demand for low voltage portable analog devices in the market. This demand has increased the requirement of the low-power RF transceiver.
P. Gupta, S. K. Jana
doaj