Results 71 to 80 of about 972 (218)
Broadband amplification with Gunn diodes
A broadband u.h.f. amplifier is described. It uses a Gunn diode oscillating at X band frequencies. The source of negative resistance for amplification is related to a lowered current saturation as viewed in I/V characteristics for the diode.
openaire +1 more source
Gunn-diode: Fundamentals and fabrication
A short tutorial on the Gunn-diode is presented. The principles underlying Gunn-oscillations are discussed briefly and illustrated by relevant simulations. The simulation of a typical Gunn-diode in a cavity is also presented.
Perold Willem +2 more
core
Frequency Deviation of Injection-Locked Microwave Autodynes [PDF]
This article presents the results of the autodyne (AD) frequency deviation research, which is simultaneously affected by its own reflected radiation and the external synchronisation signal. The basic correlations are obtained for the injection-locked AD (
V. Ya. Noskov +2 more
doaj
Frequency multipliers on semiconductor diode structures
Obvious advantages of the millimeter wave technology including a large information capacity, high directivity of radiation, diagnostics and spectroscopy capabilities of different environments, including the methods of electron paramagnetic resonance and ...
M. F. Karushkin
doaj +1 more source
Thermal analysis of Gunn diode
The aim of bachelor’s project has been thermal analysis of Gunn diode. Gunn diode model involving thermal effects was analyzed in COMSOL Multiphysics.
Chára, Pavel
core
Temperature-stable Gunn-diode oscillator
Oscillator consisting of Gunn diode embedded in coaxial circuit has excellent temperature stability and low fabrication costs as compared with automatic-frequency-control crystal ...
Dengenford, J. E. +3 more
core
Bistability and hysteresis in the emergence of pulses in microstrip Gunn-diode circuits
We develop time-domain simulations of microwave and THz radiation sources built as arrays of active devices when the radiation wavelength is small as compared to spacing between electronic components.
V. B. Yurchenko, L. V. Yurchenko
doaj +1 more source
Contact effects in Gunn diodes
This letter shows how the splitting of the forward and reverse current/voltage curves of a Gunn diode may be interpreted in terms of different models of contact damage, and proposes a simple test technique to obtain a quantitative measure of contact quality.
openaire +3 more sources
Dioda Gunn Sebagai Komponen Gelombang Mikro
Dioda Gunn yang mula-mula dibuat adalah dari bahan galium arsenide (GaAs) memperlihatkan resistansi negatif. Bahan ini bersiafat tipe n yang merapunyai tegangan ambang 3300 Volt/cm.
Achmadi Surjo
core
Single and multiple Gunn diode oscillator using an image NRD guide
A single and a multiple Gunn diode oscillator using an image NRD guide have been investigated. The LSM01 mode which is the operating mode of the image NRD guide can be the dominant mode because undesired modes are suppressed due to existence of the image
Sanagi, Minoru +5 more
core +1 more source

