Results 51 to 60 of about 186,677 (204)

Cdta-Based Quadrature Oscillator Design

open access: yes, 2006
Publication in the conference proceedings of EUSIPCO, Florence, Italy ...
Atilla Uygur, Hakan Kuntman
openaire   +4 more sources

CLEAR Interference Cancellation in a Wideband Dual‐Channel Receiver for Independent Satellite Multi‐Connectivity Links

open access: yesInternational Journal of Satellite Communications and Networking, Volume 44, Issue 6, Page 689-699, November/December 2026.
ABSTRACT In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual‐channel receiver, is studied for a pair of independent satellite multi‐connectivity links, using the same carrier frequency and signal bandwidth in use
Svilen Dimitrov
wiley   +1 more source

Electronically Tunable Quadrature Sinusoidal Oscillator with Equal Output Amplitudes during Frequency Tuning Process

open access: yesJournal of Electrical and Computer Engineering, 2017
A new configuration of voltage-mode quadrature sinusoidal oscillator is proposed. The proposed oscillator employs two voltage differencing current conveyors (VDCCs), two resistors, and two grounded capacitors.
Den Satipar   +2 more
doaj   +1 more source

Operational Current Amplifier-Based Quadrature Oscillators Family

open access: yesIEEE Access
This paper investigates the application of the operational current amplifier (OCA) in the design of quadrature sinusoidal oscillators. There are numerous quadrature sinusoidal oscillators based on the three fundamental amplifiers namely the operational ...
Hussain A. Alzaher, Ibrahim M. Alkhalifa
doaj   +1 more source

Designing RF Ring Oscillator Using Current-Mode Technology

open access: yesIEEE Access, 2017
In this paper, a new method of designing RF ring oscillator using current-mode technology is presented. The current-mode low frequency oscillator theory is transferred to facilitate the design of RF ring oscillator.
Jie Jin, Kai-Qing Zhou, Lv Zhao
doaj   +1 more source

Massively Degenerate Coherent Perfect Absorption in Gradient‐Index Fibers

open access: yesAdvanced Optical Materials, Volume 14, Issue 40, 27 October 2026.
A coherent perfect absorber (CPA) normally operates for only one or very few spatial modes. The CPA proposed here uses a gradient‐index (GRIN) fiber to absorb hundreds of spatial modes at once, its self‐imaging property replacing the bulky free‐space degenerate cavity of earlier designs. An analytic criterion sets how much modal degeneracy is required,
Helmut Hörner   +2 more
wiley   +1 more source

A 1.2-V Low-Power Full-Band Low-Power UWB Transmitter with Integrated Quadrature Voltage-Controlled Oscillator and RF Amplifier in 130nm CMOS technology [PDF]

open access: yesJordanian Journal of Computers and Information Technology, 2016
This paper presents the design and simulation of a low-power full-band UWB transmitter with on-chip quadrature voltage-controlled oscillator (QVCO) in 130 nm CMOS technology.
Fadi R. Shahroury
doaj   +1 more source

Bulk-source-coupled CMOS quadrature oscillators

open access: yesElectronics Letters, 2009
A quadrature oscillator based on a coupling between the bulk and the source of MOS transistors is proposed. Since the resonator load is not directly involved in the coupling process, the oscillation frequency is very close to the resonant frequency, hence a good phase noise characteristic. The developed theory matches very well to the simulations.
Yodprasit, Uroschanit   +3 more
openaire   +1 more source

A High‐Resolution Self‐Powered Angular Displacement Sensor Based on Triboelectric Nanogenerator With Time‐Grating

open access: yesAdvanced Science, Volume 13, Issue 56, 9 October 2026.
A self‐powered phase‐encoding sensing paradigm enables direct motion‐to‐time information conversion, providing a compact and autonomous strategy for high resolution angular displacement measurement. ABSTRACT In modern manufacturing and engineering, angular displacement sensors are crucial for motion control and feedback systems in Electromechanical ...
Shuxian Wang   +3 more
wiley   +1 more source

Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator Design

open access: yesActive and Passive Electronic Components, 2009
A new dual-input differential input active integrator using a current differencing buffered amplifier (CDBA) is proposed. A multiplier element is appropriately used in the circuit whose control voltage (Vc) tunes the integrator time constant (τ ...
R. Nandi, Mousiki Kar, Sagarika Das
doaj   +1 more source

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