Results 61 to 70 of about 17,794 (219)

A Multisection Broadband Impedance Transforming Branch-Line Hybrid [PDF]

open access: yes, 1995
Measurements and design equations for a two section impedance transforming hybrid suitable for MMIC applications and a new method of synthesis for multisection branch-line hybrids are reported.
Danshin, T., Kumar, S., Tannous, C.
core   +2 more sources

A Survey of Phase Shifters for Microwave Phased Array Systems

open access: yesInternational Journal of Circuit Theory and Applications, Volume 53, Issue 6, Page 3719-3739, June 2025.
ABSTRACT Phased Array Systems (PASs) are extensively used in radar and telecommunication systems for diverse applications, including military surveillance and wireless broadband communication. Besides, they are becoming increasingly indispensable in modern applications such as multi‐function phased array radars for weather monitoring and aircraft ...
M. Kebe, M. C. E. Yagoub, R. E. Amaya
wiley   +1 more source

Particularities of complex-functional monolithic integrated circuits post-layout simulation [PDF]

open access: yesITM Web of Conferences, 2019
This paper presents a silicon-based complex-functional monolithic microwave integrated circuits (MMICs) design methodology. Post-layout simulation stage particularities are discussed. Pre-tapeout functionality verification results of the C-band phase and
Filippov Ivan   +2 more
doaj   +1 more source

Ka-band feed arrays for spacecraft reflector antennas with limited scan capability: An overview [PDF]

open access: yes, 1992
JPL and NASA are in the process of developing ground and spacecraft antenna systems at Ka-band frequencies for future deep space applications. The use of Ka-band (32-GHz down) communication will result in smaller ground and spacecraft antennas and ...
Jamnejad, V.
core   +1 more source

Chaos in Si MMIC Oscillators [PDF]

open access: yes29th European Microwave Conference, 1999, 1999
This paper analyzes the dynamics of two Si circuits in miliimetric band for which chaotic responses had been experimentally observed. The aim has been to determine, in each case, the particular phenomena leading to the chaotic response, in order to avoid this behavior in future realizations of these circuits.
Suárez, Almudena, Sancho, Sergio
openaire   +2 more sources

Lichen and Its Microbiome as an Untapped Source of Anti‐Biofilm Compounds

open access: yesChemistry &Biodiversity, Volume 22, Issue 4, April 17, 2025.
Lichens and their associated fungi give rise to the evaluation of several extracts and compounds against biofilms. ABSTRACT Lichen substances have been first described in the 1870s, and around 10 000 compounds have been isolated and characterized. Most of them have been evaluated for their activity on planktonic microorganisms (bacteria and fungi ...
Marion Millot   +4 more
wiley   +1 more source

Development of A General Computation Agorithm for the Analysis of MMIC Structures Based on A Three-Dimensional Model

open access: yesActive and Passive Electronic Components, 2002
A generalized three-dimensional computational numerical code is developed for Monolithic Microwave Integrated Circuit (MMIC) structures based on a full wave approach using integral equation techniques.
R. Makri   +2 more
doaj   +1 more source

High Output Power and Efficiency 300-GHz Band InP-Based MOS-HEMT Power Amplifiers With Composite-Channel and Double-Side Doping

open access: yesIEEE Journal of the Electron Devices Society
This paper demonstrated high-output-power and high-efficiency power amplifier (PA) monolithic microwave-integrated circuit (MMIC) at 300-GHz band (252–296 GHz) with the use of InPbased metal–oxide–semiconductor high-electron-mobility
Yusuke Kumazaki   +6 more
doaj   +1 more source

MMIC technology for advanced space communications systems [PDF]

open access: yes
The current NASA program for 20 and 30 GHz monolithic microwave integrated circuit (MMIC) technology is reviewed. The advantages of MMIC are discussed.
Anzic, G.   +2 more
core   +1 more source

X‐band quasi class‐F HPA MMIC using DynaFET GaN HEMT modelling

open access: yesElectronics Letters
This paper proposes an X‐band quasi Class‐F high power amplifier (HPA) monolithic microwave integrated circuit (MMIC) using DynaFET gallium nitride (GaN) high electron mobility transistor (HEMT) modelling.
Junhyung Jeong   +6 more
doaj   +1 more source

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