Results 111 to 120 of about 29,736 (309)
A dual frequency microstrip antenna for Ka band [PDF]
For fixed satellite communication systems at Ka band with downlink at 17.7 to 20.2 GHz and uplink at 27.5 to 30.0 GHz, the focused optics and the unfocused optics configurations with monolithic phased array feeds have often been used to provide multiple ...
Baddour, M. F., Lee, R. Q.
core +1 more source
Computer Vision Control for Phased Array Beam Steering [PDF]
, 2018 This work proves a concept for a wireless access point that uses image identification and tracking algorithms to automate the electronic control of a phased antenna array.
Freking, Jacob A
core +1 more source
Configurable phased antenna array
, 2019 The present subject matter relates to devices, systems, and methods for beam steering in which a configurable antenna assembly includes a first antenna element configured to radiate in a first broadside direction and a second antenna element configured to radiate in an endfire direction.
Zhang, Jin +2 more
openaire +2 more sources
Selection Strategies for Flexible Pressure Sensor Electrode Materials Toward Ultrafast Response
Advanced Functional Materials, EarlyView.This study reveals, for the first time, how the electrode–organic interface governs the temporal performance of flexible pressure sensors. By pairing high‐conductivity CVD PEDOT with commonly used metal electrodes, the authors demonstrate that interfacial energy alignment dictates microsecond‐scale response, providing a straightforward design strategy ...
Jinwook Baek +11 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou +17 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Microscale hydrogels (microgels) feature improved mass transport characteristics supportive of fast actuation and chemical tunability amenable to programmed stimuli response. A unique soft actuator architecture is realized by encapsulating microgels in soft microcirculatory systems which enable the convenient delivery of liquid stimuli for powering and
Nengjian Huang +2 more
wiley +1 more source
A Heterogeneously Integrated 256-Element 5G Phased Array: Design, Assembly, Test
IEEE Journal of MicrowavesIn this paper, we present the design, assembly, and test of a heterogeneously integrated dual-polarized 256-element 5G phased array covering 24$-$ 30 GHz.
Bodhisatwa Sadhu +11 more
doaj +1 more source
An Efficient Beam Steerable Antenna Array Concept for Airborne Applications [PDF]
, 2014 Deployment of a satellite borne, steerable antenna array with higher directivity and gain in Low Earth Orbit makes sense to reduce ground station complexity and cost, while still maintaining a reasonable link budget.
Aliakbarian, H. +5 more
core +1 more source
Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors
Advanced Functional Materials, EarlyView.π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato +10 more
wiley +1 more source
Advanced Functional Materials, EarlyView.In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken +6 more
wiley +1 more source