Results 1 to 10 of about 549,161 (310)
Packaging of an Amplifier Module for Sub-THz Wireless Transmission Based on Photonics [PDF]
Journal of Electromagnetic Engineering and Science, 2023 In this study, we have developed an amplifier waveguide module suitable for broadband communication in the sub-THz band. To achieve a waveguide module with excellent gain flatness characteristics, the effects of errors during the packaging procedures of ...
Sooyeon Kim +8 more
doaj +1 more source
Active odd-mode-metachannel for single-conductor systems
Opto-Electronic Advances, 2022 Although tremendous efforts have been devoted to investigating planar single-conductor circuits, it remains challenging to provide tight confinement of electromagnetic field and compatibility with active semi-conductor components such as amplifier ...
Pei Hang He +7 more
doaj +1 more source
Advanced Scheme to Generate MHz, Fully Coherent FEL Pulses at nm Wavelength
Applied Sciences, 2021 Current FEL development efforts aim at improving the control of coherence at high repetition rate while keeping the wavelength tunability. Seeding schemes, like HGHG and EEHG, allow for the generation of fully coherent FEL pulses, but the powerful ...
Georgia Paraskaki +7 more
doaj +1 more source
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2021 Advances in the development of ultrahigh-frequency semiconductor electronics open wide opportunities for developing optimal schemes and designs of microwave power sources in the millimeter wavelength range providing high stability of the frequency and ...
Mykola Karushkin
doaj +1 more source
A SiGe BiCMOS Amplifier-Frequency Doubler Chain Operating for 284–328 GHz [PDF]
Journal of Electromagnetic Engineering and Science, 2022 This work describes the development of an amplifier frequency doubler chain (AFDC) operating at around 300 GHz based on SiGe BiCMOS technology.
Junghwan Yoo +4 more
doaj +1 more source
Faster, higher, stronger: timely and robust cell fate/identity commitment in stem cell lineages [PDF]
Open Biology, 2019 Precise specification of cell fate or identity within stem cell lineages is critical for ensuring correct stem cell lineage progression and tissue homeostasis.
Kun Liu, Ke Xu, Yan Song
doaj +1 more source
IEEE Access, 2023 The effect of load-pull on 3rd order intermodulation (IM3) radiation characteristics of a transmitting active phased array is studied and a general model for predicting the spatial distribution of fundamental tones and intermodulation products is ...
Veli-Pekka Kutinlahti +2 more
doaj +1 more source
Neural network modeling of bismuth-doped fiber amplifier
Journal of the European Optical Society-Rapid Publications, 2023 Bismuth-doped fiber amplifiers offer an attractive solution for meeting continuously growing enormous demand on the bandwidth of modern communication systems.
Donodin Aleksandr +9 more
doaj +1 more source
Designing the Next Generation of Vaccines: Relevance for Future Pandemics
mBio, 2020 The development of vaccines is one of the greatest medical interventions in the history of global infectious diseases and has contributed to the annual saving of at least 2 to 3 million lives worldwide.
Jorge Domínguez-Andrés +3 more
doaj +1 more source
Ultrasonic Air Coupled Transducer Output Impedance Measurement Technique
Elektronika ir Elektrotechnika, 2019 Estimation of the output impedance of ultrasonic transducers is required for electrical matching circuits design and for receiving amplifiers noise optimization.
Linas Svilainis +2 more
doaj +1 more source