Results 81 to 90 of about 26,223 (245)
Microbial Biotechnology, Volume 18, Issue 4, April 2025.Single‐plasmid inducible‐replication system for biological nanorod production was developed based on the knowledge of replication and biology of the Ff (f1, fd or M13) bacteriophages from which they are derived. Design described here overcomes the replication bottlenecks, adjusts the production of the major coat protein and simplifies the preproduction
Rayén Ignacia León‐Quezada +5 more
wiley +1 more source
Miniature modular microwave end-to-end receiver [PDF]
, 1993 An end-to-end microwave receiver system contained in a single miniature hybrid package mounted on a single heatsink is presented. It includes an input end connected to a microwave receiver antenna and an output end which produces a digital count ...
Cooley, Thomas W. +3 more
core +1 more source
Geophysical Research Letters, Volume 52, Issue 4, 28 February 2025.Abstract The Surface Water and Ocean Topography (SWOT) mission offers new insights into submesoscale ocean processes. Realizing this requires careful consideration of other geophysical signals such as the signal delay induced by water vapor in the troposphere.
Andrea Hay +4 more
wiley +1 more source
A Fully Integrated 0.48 THz FMCW Radar Sensor in a SiGe Technology
IEEE Journal of MicrowavesThe THz gap has been a significant research objective for photonics and electronics for decades. This work introduces a fully integrated frequency modulated continuous wave (FMCW) radar sensor with a center frequency of 0.48 THz, realized in a silicon ...
Florian Vogelsang +6 more
doaj +1 more source
Characterization of MMIC devices for active array antennas [PDF]
Certain aspects of monolithic microwave integrated circuit (MMIC) interconnectivity were investigated. Considerations that lead to preserving the inherently reproducible characteristics of the MMIC are proposed. It is shown that at radio frequencies (RF)
Farr, E., Mittra, R., Smetana, J.
core +1 more source
A 10-W GaN on SiC CPW MMIC High-Power Amplifier With 44.53% PAE for X-Band AESA Radar Applications
ElectricaThis article presents a novel X-band gallium nitride (GaN) on silicon carbide (SiC) co-planar waveguide (CPW) monolithic microwave integrated circuit (MMIC) highpower amplifier (HPA) design for radar applications. In design, 0.25 μm γ-shape gate and high
Galip Orkun Arıcan +1 more
doaj +1 more source
Frontiers in Environmental ScienceIntroductionMonitoring and real-time detection of soil heavy metal pollution are crucial to ensuring the safety of agricultural food products. Conventional methods for determining heavy metal concentrations require substantial time and costs.
Shaoyong Hong +5 more
doaj +1 more source
Design of low-noise LDO power supply for RF LNA
Dianzi Jishu Yingyong, 2018 A power supply module is designed to supply RF low-noise amplifier(LNA) which is integrated in monolithic microwave integrated circuit(MMIC). The power supply module integrated in MMIC and uses a low dropout regulator(LDO) structure to produce a stable ...
Song Fei, Cai Jun, Li Yang, Wang Fei
doaj +1 more source
Ka-band feed arrays for spacecraft reflector antennas with limited scan capability: An overview [PDF]
, 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
Ka-band MMIC beam steered transmitter array [PDF]
A 32-GHz six-element linear transmitter array utilizing monolithic microwave integrated circuit (MMIC) phase shifters and power amplifiers was designed and tested as part of the development of a spacecraft array feed for NASA deep-space communications ...
Duffy, L. +4 more
core +1 more source