Results 11 to 20 of about 654,186 (267)
Gain and Noise Figure Performance of Erbium-Doped Fiber Amplifiers [PDF]
Kirkuk Journal of Science, 2008 Fiber loss is a fundamental limitation in realizing long haul point–to-point fiber optical communication links and optical networks. One of the advanced technologies achieved in recent years is the advent of erbium doped fiber amplifiers (EDFAs) that has
Banaz O. Rashid, Perykhan.M. Jaff
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IEEE Journal of the Electron Devices Society, 2023 In this research, $\Gamma $ -gated AlGaN/GaN HEMTs with different layout designs and heights of gate stems were fabricated to investigate their impacts on the noise performance in the Ka-band.
Ping-Hsun Lee +6 more
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Frontiers in Physiology, 2012 Figure-ground (FG) segmentation is the separation of visual information into background and foreground objects. In the visual cortex, FG responses are observed in the late stimulus response period, when neurons fire in tonic mode, and are accompanied by ...
August eRomeo +4 more
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IET Networks, 2020 A novel design of reconfigurable circularly polarised antenna is proposed and developed in the present work. The circularly polarised antenna consists of two linearly polarised inverted‐L antenna elements with double‐folded arms. To improve the impedance
Padakandla Chenna Praveen Kumar +1 more
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Multi-Way Noiseless Signal Amplification in a Symmetrical Cascaded Four-Wave Mixing Process
Photonics, 2022 According to the fundamental laws of quantum optics, vacuum noise is inevitably added to the signal when one tries to amplify a signal. However, it has been recently shown that noiseless signal amplification can be realized when a phase-sensitive process
Hailong Wang +5 more
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A Low Power CMOS UWB LNA with Sub-1V Supply Voltage and Noise Cancellation Technique [PDF]
مجله مدل سازی در مهندسیLow noise amplifiers (LNA) in RF receivers are usually the first block after the antenna that amplify the signal received from the antenna with negligible noise and distortion.
Mehdi Alinejad, Emad Ebrahimi
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Decreased noise figure measurement uncertainty in Y factor method [PDF]
Advances in Radio Science, 2013 Almost always noise figure is measured today by using a matched noise source delivering two different but known noise temperatures (Y factor method). In commercially available noise sources these temperatures are characterized by the excess noise ratio ...
I. Gaspard
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FULLY OPTIMIZED ULTRA WIDEBAND RF RECEIVER FRONT END
Jordanian Journal of Computers and Information Technology, 2022 This paper proposes a novel and fully optimized Ultra-wideband rf receiver front end in UMC 180nm 1P6M CMOS process. The heterodyne architecture used in this work does not use the on-chip image reject mixer.
Rajesh Khatri, D. K. Mishra
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Micromachines, 2023 In this paper, AlGaN/GaN high-electron-mobility transistors (HEMTs) with ohmic etching patterns (OEPs) “fabricated to improve device radio frequency (RF) performance for Ka-band applications” are reported.
Ming-Wen Lee +4 more
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Noise Figure Degradation in Balanced Amplifiers [PDF]
IEEE Microwave and Wireless Components Letters, 2017 Balanced amplifiers suffer from the noise figure performance in comparison with a stand-alone amplifier even with an ideal input divider. The noise parameters degrade further with an imperfect divider. We present exact and approximate analytical results for the noise figure and noise parameters of the balanced amplifier in divider topology. Measurement
Akif Alperen Coskun, Abdullah Atalar
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