Results 101 to 110 of about 66,325 (297)

Design of a Low Profile and Compact Omnidirectional Filtering Patch Antenna

open access: yesIEEE Access, 2017
A low profile omnidirectional patch antenna with filtering response is investigated in this paper. The triangular patch antenna is axially fed by a probe at its center, exciting both its TM10 and TM11 modes. Comparing with the traditional circular patch,
Tian Li Wu   +3 more
doaj   +1 more source

Enhanced monopulse radar tracking using fractional Fourier filtering in the presence of interference [PDF]

open access: yes, 2010
Monopulse radars are used to track a target that appears in the look direction beam width. Significant distortion is produced when manmade high power interference (jamming) is introduced to the radar processor through the radar antenna main lobe (main ...
Elgamel, Sherif A.E.H., Soraghan, J.J.
core  

Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation

open access: yesAdvanced Engineering Materials, EarlyView.
ZnS‐MXene‐TiO2 nanocomposite heterojunction for photocatalytic decomposition of this methylene blue dye (MB) greatly improves light absorption, charge separation, and active site area. Two‐dimensional MXene forms nanocomposites by easily combining them with 0D (quantum dots), 1D (tube and wire), 2D (plane and sheet), and 3D (particle and lamellar ...
Latiful Kabir   +7 more
wiley   +1 more source

A Dual-Band Patch Antenna with Combined Self-Decoupling and Filtering Properties and Its Application in Dual/Squad-Band Two-Element MIMO Array

open access: yesSensors
This paper proposes a dual-band patch antenna with combined self-decoupling and filtering properties, designed to suppress mutual coupling between two antenna elements both within the same dual-band and across different dual-bands. Initially, a dual-band
Jun-Yi Lv   +3 more
doaj   +1 more source

An Improved Method for Accurate Extraction of Coupling Coefficient Between a Lossy Radiator and a Lossless Resonator in Filtering Antennas

open access: yesIEEE Access, 2018
A unique method for accurate extraction of coupling coefficient between a lossy radiator and a lossless resonator is proposed in this paper to facilitate the synthesis design of filtering antennas.
Qiong-Sen Wu, Xiao Zhang, Lei Zhu
doaj   +1 more source

The Fundamentals of Radar with Applications to Autonomous Vehicles [PDF]

open access: yes, 2019
Radar systems can be extremely useful for applications in autonomous vehicles. This paper seeks to show how radar systems function and how they can apply to improve autonomous vehicles.
Rummel, Kameron
core   +1 more source

Adaptive channel selection for DOA estimation in MIMO radar

open access: yes, 2017
We present adaptive strategies for antenna selection for Direction of Arrival (DoA) estimation of a far-field source using TDM MIMO radar with linear arrays. Our treatment is formulated within a general adaptive sensing framework that uses one-step ahead
Brüggenwirth, Stefan   +3 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

X-Band Waveguide Reflectionless Filtering Antenna Array With High Selectivity

open access: yesIEEE Open Journal of Antennas and Propagation
In this paper, a waveguide reflectionless filtering antenna array with high selectivity is proposed. Instead of reflecting the out-of-band signal back to the source, the proposed antenna array dissipates the energy through a lossy network, which can ...
Jun Ma, Fuchang Chen, Kairan Xiang
doaj   +1 more source

Quasi-Real Scenario of Reconfigurable Filtering Functions Antenna for UWB Communications

open access: yesElektronika ir Elektrotechnika, 2018
In this paper, an Ultra Wide Band antenna with reconfigurable filtering-characteristic is proposed to overcome interferences problems in the frequency range 3.1 GHz–10.7 GHz. With dimensions of 35 x 35 mm2, the structure is simple, low–cost and possesses
Hicham Medkour   +4 more
doaj   +1 more source

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