منابع مشابه
Nonlinear Chaotic Dynamics in Gunn Devices
Nonlinear dynamics in Gunn devices that can exhibit chaotic behaviour is discussed. Evidence for such behaviour is given by laboratory experiments, by computer simulations, and, where available, by simple mathematical reasoning.
متن کاملGHz Tunable Gunn Oscillator in WR - 137 Waveguide
The conventional technique of realising waveguide resonators for Gunn diode oscillators to operate at the band edge of the waveguide fails owing to the excitation of a coaxial mode resonance formed by the post and the side walls of the waveguide. One of the solutions to the problem is to mount the diode in a ridged waveguide resonator, This has been demonstrated by constructing an 8 GHz Gunn os...
متن کامل140-220 GHz Imaging Front-end Based on 250 nm InP/InGaAs/InP DHBT Process
This paper presents a pre-amplified detector receiver based on a 250 nm InP/InGaAs/InP double heterojunction bipolar transistor (DHBT) process available from the Teledyne scientific. The front end consists of a double slot antenna followed by a five stage low noise amplifier and a detector, all integrated onto the same circuit. Results of measured responsivity and noise are presented. The recei...
متن کاملHigh current (100mA) InP/InGaAs/InP DHBTs with 330 GHz fmax
We report high fmax and high current InP/InGaAs/InP DHBT in transferred-substrate technology. The common base device with equivalent emitter size of 128 um exhibits fmax of 330 GHz at the current of 100 mA. The common emitter device with emitter area of 64 um shows fmax of 371 GHz when biased at 57 mA. The breakdown voltage of these DHBTs is up to 7 volts at low current density. All the devices...
متن کاملA 46 GHz Bandwidth Monolithic InP/InGaAs PIN/SHBT-Photoreceiver
A InGaAs PIN-photodetector and a lumped SHBT-transimpedance-preamplifier have been mono-lithically integrated and characterized. The preamlifier achieves a transimpedance gain of 44:6 dB (170) and the optical/electrical ?3dB-bandwidth of the entire receiver is 46 GH z. This is, to the best of our knowledge, the highest bandwidth for any HBT based photoreceiver reported to date.
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ژورنال
عنوان ژورنال: Solid-State Electronics
سال: 1993
ISSN: 0038-1101
DOI: 10.1016/0038-1101(93)90026-m