Results 91 to 100 of about 878,105 (387)
Capacitance multiplier and filter synthesizing network [PDF]
, 1974 A circuit using a differential amplifier multiplies the capacitance of a discrete interating capacitor by (r sub 1 + R sub 2)/R sub 2, where R sub 1 and R sub 2 are values of discrete resistor coupling an input signal e sub 1 of the amplifier inputs. The
Kline, A. J.
core +1 more source
Superconducting microstrip amplifiers with sub-Kelvin noise temperature near 4 GHz
, 2012 We present measurements of an amplifier operating at 3.8 GHz with 150 MHz of bandwidth based on the microstrip input-coil resonance of a dc superconducting quantum interference device (SQUID) with submicron Josephson junctions.
DeFeo, M. P., Plourde, B. L. T.
core +1 more source
A filter synthesis technique applied to the design of multistage broad-band microwave amplifiers [PDF]
, 2002 A method for designing multistage broad-band amplifiers based upon well-known filter synthesis techniques is presented. Common all-pole low-pass approximations are used to synthesize prototype amplifier circuits that may be scaled in frequency and ...
Hunter, I. +3 more
core +1 more source
Controlling the dynamic range of a Josephson parametric amplifier [PDF]
, 2013 One of the central challenges in the development of parametric amplifiers is the control of the dynamic range relative to its gain and bandwidth, which typically limits quantum limited amplification to signals which contain only a few photons per inverse
C. Eichler, A. Wallraff
semanticscholar +1 more source
The Doherty Power Amplifier [PDF]
, 2010 In this contribution, the Doherty Power Amplifier (DPA) design concept is focused, discussing about different approaches to optimize its performance. For this purpose, the design, realization and measurement results of three prototypes working at 2.14GHz are presented.
COLANTONIO, PAOLO +3 more
openaire +8 more sources
A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
40 GHz Monolithic Grid Amplifier [PDF]
, 1995 A 36-element monolithic grid amplifier has been fabricated. The peak gain is 4 dB at 40 GHz with a 3-dB bandwidth of 800 MHz. We discuss the design and measurements for the monolithic grid amplifier.
Liu, Cheh-Ming +2 more
core
FEBS Letters, EarlyView.The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp +5 more
wiley +1 more source
Low level signal limiter [PDF]
, 1968 A limiting circuit is described which prevents a signal being supplied to a signal amplifier from exceeding a predetermined value. The circuit is designed to permit a signal voltage to be fed directly to a signal amplifier without passing through the ...
Hansen, I. G., Peterson, V. S.
core +1 more source
Design and characterization of a lumped element single-ended superconducting microwave parametric amplifier with on-chip flux bias line [PDF]
, 2013 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 port or through ...
J. Mutus +20 more
semanticscholar +1 more source