Results 51 to 60 of about 147,442 (200)
A quadrature oscillator using simplified phase and amplitude calibration
, 2008 A quadrature oscillator using automatic calibration of phase and amplitude is presented. It is shown that phase errors in a quadrature oscillator will create an amplitude difference between the outputs.
Hakan Olsson +3 more
core +1 more source
Cdta-Based Quadrature Oscillator Design
, 2006 Publication in the conference proceedings of EUSIPCO, Florence, Italy ...
Atilla Uygur, Hakan Kuntman
openaire +4 more sources
International Journal of Satellite Communications and Networking, EarlyView.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
Controlling Radiative Phonons in the van der Waals Ferroelectric NbOI2
Advanced Materials, Volume 38, Issue 53, 21 September 2026.Using a simple mirror geometry, this work demonstrates local‐density‐of‐optical‐states control of THz phonon emission in van der Waals ferroelectric NbOI2. By engineering the photonic environment, the phonon Q‐factor, linewidth, peak frequency, and emission intensity are reversibly tuned by over an order of magnitude, revealing radiative phonons as ...
Baolong Zhang +5 more
wiley +1 more source
Low-frequency, Low-distortion Digital Quadrature Oscillator
, 1989 Digital recursive and non-recursive filtering techniques have both been exploited to build a low-frequency (0.5-50 Hz), low-distortion digital quadrature oscillator.
BORGHESANI, ARMANDO-FRANCESCO
core +1 more source
Operating a Contextual Stern–Gerlach Apparatus
Annalen der Physik, Volume 538, Issue 9, September 2026.We reappraise the Stern–Gerlach experiment in view of the contextual monitoring of a cavity QED system output. The dynamical collapse of a macroscopic coherent‐state superposition for the cavity field, allowing for a binary outcome in the “spin” degree of freedom, is complementary to the persistence of quantum interference, after passing through ...
Th. K. Mavrogordatos
wiley +1 more source
Very low phase noise RF quadrature oscillator architecture [Elektronisk resurs]
, 2001 An architecture for RF quadrature oscillators is presented, which, according to simulations, shows a figure of merit some 20 dB higher than that of other quadrature oscillators.
Andreani, Pietro,, Lund University.
core +2 more sources
Quadrature Oscillators Using Operational Amplifiers
Active and Passive Electronic Components, 2011 Two new quadrature oscillator circuits using operational amplifiers are presented. Outputs of two sinusoidal signals with 90° phase difference are available in each circuit configuration.
Jiun-Wei Horng
doaj +1 more source
InfoScience, Volume 3, Issue 3, September 2026.With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong +8 more
wiley +1 more source
Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator
Laser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang +3 more
wiley +1 more source