Results 131 to 140 of about 4,599,349 (171)
Some of the next articles are maybe not open access.
A miniaturized multi-octave Vivaldi antenna for electronic warfare systems
Electromagnetics, 2019Antennas with multi-octave bandwidth are widely used for applications such as phased arrays, electronic warfare, and radar navigation due to wide bandwidth, high gain, wide beam width, and flat con...
K. Premchand, P.Hari Krishna
openaire +1 more source
A novel electronically tunable rectangular patch antenna with one octave bandwidth
Conference Proceedings. IEEE Canadian Conference on Electrical and Computer Engineering (Cat. No.98TH8341), 2002A novel design for a microstrip antenna with a large tuning range is presented. The layout of this antenna consists of a rectangular patch antenna divided into two sections and connected using varactor diodes (or capacitors). A sample microstrip antenna using the new design is fabricated and tested. The experimental results of the resonant frequency is
N. Fayyaz +3 more
openaire +1 more source
2022
New compact particle acceleration structures, including but not limited to plasma, THz and direct laser driven accelerators, have in common that they cover a wide energy range of potential final energies and often show a large energy spread. Moreover, they may initially have a rather large emittance.
Rohwer, Timm +4 more
openaire +1 more source
New compact particle acceleration structures, including but not limited to plasma, THz and direct laser driven accelerators, have in common that they cover a wide energy range of potential final energies and often show a large energy spread. Moreover, they may initially have a rather large emittance.
Rohwer, Timm +4 more
openaire +1 more source
IEEE Transactions on Components, Packaging and Manufacturing Technology, 2016
This paper explores the role of nonlinear dynamical phenomena in calculating the stress amplitude in large electronic components exposed to biaxial vibration loading. Nonlinear analytical studies are presented where a component exposed to combined axial and transverse vibratory base excitation is idealized using a nonlinear structural beam element with
Matthew Ernst +2 more
openaire +1 more source
This paper explores the role of nonlinear dynamical phenomena in calculating the stress amplitude in large electronic components exposed to biaxial vibration loading. Nonlinear analytical studies are presented where a component exposed to combined axial and transverse vibratory base excitation is idealized using a nonlinear structural beam element with
Matthew Ernst +2 more
openaire +1 more source
Octave Ban D MIC Electronically Variable Attenuators Using PIN Diodes
1971 IEEE GMTT International Microwave Symposium Digest, 1971A series of C- and X-band thin-film microstrip electronically variable attenuators have been developed, using PIN diode chips in an iterated structure, which exhibit half-to-full octave bandwidth capability. Using 10 PIN diodes, mounted singly and in pairs on a 1-inch square substrate, these attenuators exhibit less than 1.6 and 1.8 dB low attenuation ...
H.C. Okean, R. Pflieger
openaire +1 more source
Octave assignment system for electronic musical instrument
The Journal of the Acoustical Society of America, 1980An electronic organ uses several top octave synthesizer circuits for producing the various tones used in the organ. Each of the top octave synthesizers is capable of producing any tone which can be produced by the organ. As a consequence, the outputs of each synthesizer are applied to a coupler circuit, which in turn is connected to an octave ...
openaire +1 more source
PGMTT National Symposium Digest, 2005
The conventional cavity-reactance amplifier uses a single variable-reactance diode that couples several tuned circuits together. There are many modes of operation of this type of amplifier, each of which has been analyzed in detail.
E.W. Sard, S. Okwit
openaire +1 more source
The conventional cavity-reactance amplifier uses a single variable-reactance diode that couples several tuned circuits together. There are many modes of operation of this type of amplifier, each of which has been analyzed in detail.
E.W. Sard, S. Okwit
openaire +1 more source
Optics Letters, 2016
The development of coherent Fourier transform two-dimensional electronic-vibrational (2D EV) spectroscopy with acousto-optic pulse-shaper-generated near-UV pump pulses and an octave-spanning broadband mid-IR probe pulse is detailed. A 2D EV spectrum of a silicon wafer demonstrates the full experimental capability of this experiment, and a 2D EV ...
James D, Gaynor +3 more
openaire +2 more sources
The development of coherent Fourier transform two-dimensional electronic-vibrational (2D EV) spectroscopy with acousto-optic pulse-shaper-generated near-UV pump pulses and an octave-spanning broadband mid-IR probe pulse is detailed. A 2D EV spectrum of a silicon wafer demonstrates the full experimental capability of this experiment, and a 2D EV ...
James D, Gaynor +3 more
openaire +2 more sources
International Conference on Ultrafast Phenomena, 2016
Two-dimensional electronic-vibrational spectroscopy is presented using a sequence of two ~40 fs 400 nm pulses and an octave-spanning broadband mid-IR pulse (~20 fs) to measure correlated electronic and vibrational dynamics.
James D. Gaynor +3 more
openaire +1 more source
Two-dimensional electronic-vibrational spectroscopy is presented using a sequence of two ~40 fs 400 nm pulses and an octave-spanning broadband mid-IR pulse (~20 fs) to measure correlated electronic and vibrational dynamics.
James D. Gaynor +3 more
openaire +1 more source
Octave electronic tuning of a CW Gunn diode using a YIG sphere
Proceedings of the IEEE, 1969Octave electronic tuning of CW Gunn diodes using a YIG sphere has been achieved in the range 6 to 18 GHz. Output power exceeded 50 mW throughout the range 6.9 to 8.5 GHz for narrower-band operation.
openaire +1 more source