Results 91 to 100 of about 23,650 (265)
Plant Species Biology, Volume 40, Issue 4, Page 324-340, July 2025.We utilized 10 microsatellite loci to examine the genetic diversity, genetic structure, and demographic history of Zamia decumbens Calonje, Meerman, M.P. Griff. & Hoese, an endangered cycad species occurring in small disjunct populations on karst topography within the Maya Mountains of Belize.
Michael Calonje +4 more
wiley +1 more source
, 2005 A y-band strongly-coupled single-chip MMIC oscillator array is presented. For wide bandwidth and easy biasing to push-pull type oscillators, modified 2-port microstrip parasitic coupled antennas are employed. When measured in a closed oversized waveguide,
Choi, W, Kwon, Y, Kim, HT
core +1 more source
X‐band quasi class‐F HPA MMIC using DynaFET GaN HEMT modelling
Electronics LettersThis 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
A Survey of Phase Shifters for Microwave Phased Array Systems
International 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
MMIC non-linear transmission line frequency doubler [PDF]
, 1998 This paper describes the design and the predicted and measured results of a Q-band MMIC nonlinear transmission line frequency doubler using a 0.7 micron GaAs MESFET MMIC process.
Hyvönen, L., Närhi, T.
core +1 more source
Characterisation of active loads for MMIC's
, 1997 Active loads have been fabricated and tested, and their characterisation addressed for use in microwave CAD programs. The first results show that non-ideal (parasitic) effects are present that can easily be evaluated. Comparison with a three-terminal FET structure shows that a characterisation in terms of an equivalent circuit is feasible, and suggests
GIANNINI, FRANCO +2 more
openaire +3 more sources
Lichen and Its Microbiome as an Untapped Source of Anti‐Biofilm Compounds
Chemistry &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
Compact 3dB quadrature coupler implemented in MMIC
, 2007 Oppgaven tar for seg ulike topologier av kompakte 3dB kvadratur-koblere implementert i MMIC. Metoder er beskrevet for å designe slike kretser. Kretssimuleringer av slike koblere er utført.
Mohebbi, Houman
core +1 more source
A K-band MMIC filter based on GaAs IPD technology
Dianzi Jishu Yingyong, 2018 This paper develop a high performance K-band Hair-Pin MMIC band-pass filter which is based on GaAs IPD technology. The measurement result shows that at the operation frequency of 19.5～21.3 GHz, the insertion loss of this filter is below 2.6 dB, the ...
Lu Yu
doaj +1 more source
Lymphadenopathy is an independent prognostic factor for patients with Waldenström macroglobulinaemia
British Journal of Haematology, Volume 207, Issue 4, Page 1589-1593, October 2025.
Ioannis Ntanasis‐Stathopoulos +16 more
wiley +1 more source