Results 71 to 80 of about 28,555 (206)
Fast Filter‐Antenna Design Method Accelerated With Physical‐Inspired AI‐Driven Forward Solver
IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.A fast AI‐driven design method is proposed for RF devices, leveraging a physically inspired forward solver with a coupling matrix via an artificial neural network (ANN). By establishing space mapping between coarse and fine models and extracting the resonator's mutual coupling matrix, the method achieves robust, efficient and accurate prediction of S ...
Xingyi Liu +7 more
wiley +1 more source
Frontiers in Chemistry, 2019 The synthesis of heterogeneous cooperative catalysts in which two or more catalytically active components are spatially separated within a single material has generated considerable research efforts.
Xiaoxiong Cai +5 more
doaj +1 more source
IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.A high selectivity integrated passive device (IPD) on‐chip bandpass filter is presented. The stacked series‐parallel topology is employed to generate two transmission zeros and a transmission pole to maintain high selectivity and high stopband attenuation near the passband.
Hao‐Ran Zhu +4 more
wiley +1 more source
IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.A millimetre‐wave tilting beam‐steering substrate‐integrated waveguide (SIW) horn antenna is proposed for millimetre‐wave communications. The measured results indicate that an impedance bandwidth below |S_{11}| < −10 dB from 25.60 to 27.72 GHz, with a peak gain of 10.5 dBi and a front‐to‐back ratio (FTBR) exceeding 15 dB.
Guo Yang +6 more
wiley +1 more source
Design of Wideband Substrate Integrated Waveguide Filters With Tunable Lowpass Characteristics
IEEE AccessIn this paper, the application of the stepped impedance synthesis technique in the design of tunable wideband substrate integrated waveguide (SIW) Chebyshev filters is explored.
Clara Maximo-Gutierrez +2 more
doaj +1 more source
IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.We introduce a simple approach to taper the amplitude distribution in leaky‐wave antennas by exploiting a nonradiative dielectric waveguide topology. By shaping the dielectric section, the longitudinal attenuation constant and therefore the amplitude distribution can be easily controlled to lower side lobe levels.
Kevin Kipruto Mutai, Qiang Chen
wiley +1 more source
Design of a vertically stacked double Luneburg lens-based beam-scanning antenna at 60 GHz
Open EngineeringThis article presents the design of a 60 GHz beam-scanning antenna system with a coverage range of 50–100 m for high-speed indoor communication systems.
Alhumaidan Ahmed +4 more
doaj +1 more source
Distinguishing Antonyms and Synonyms in a Pattern-based Neural Network
, 2017 Distinguishing between antonyms and synonyms is a key task to achieve high performance in NLP systems. While they are notoriously difficult to distinguish by distributional co-occurrence models, pattern-based methods have proven effective to ...
Nguyen, Kim Anh +2 more
core +1 more source
Broadband Coaxial Rotary Joint With Simple Substrate Integrated Waveguide Feeder
IEEE Access, 2019 This paper presents a broadband coaxial rotary joint with simple single-layer substrate integrated waveguide (SIW) feeder. The annular slot etched on the surface of SIW can effectively convert TE10 mode in the rectangle SIW into the rotational symmetric ...
Liang Zhao, Jin Shi, Kai Xu
doaj +1 more source
Proceedings of the Royal Society of Medicine, 1974 D I, Vollum, M, Farquharson
openaire +2 more sources