Results 41 to 50 of about 6,027 (173)
We present a textile‐compatible, self‐healing liquid metal ink and a dual‐mask printing technique for high‐resolution patterning. Using this approach, we demonstrate high‐performance millimeter‐wave (mmWave) electronic textiles that exhibit exceptional insensitivity to deformation.
Lu Ju +11 more
wiley +1 more source
A Miniaturized Wing‐Conformal Phased Array for Simultaneous Wideband and Wide‐Angle Scanning
This paper presents a compact S‐band wing‐conformal phased array antenna with wide bandwidth, wide‐angle azimuth scanning and a narrow elevation beam width. The design uses a tightly spaced 1 × 12 array with an element spacing of only 0.31λ at the lowest frequency, combined with WAMSs and a hybrid director‐FSS structure to realize wideband operation ...
Yang Zhou +5 more
wiley +1 more source
Wideband and Frequency‐Reconfigurable Loop Antenna for Sub‐6 GHz Applications
This work tackles the longstanding bandwidth limitation of loop antennas by introducing a compact, symmetrical design that integrates a microstrip balun and periodic varactor loading. Unlike existing methods that often compromise symmetry or beam control, the proposed structure achieves both wide impedance bandwidth and frequency reconfigurability ...
Amir Jafargholi, Romain Fleury
wiley +1 more source
COMPACT AND EFFICIENT UWB ANTENNA FOR SMART VEHICLE COMMUNICATION SYSTEMS
The most recent wireless technology is ultra-wideband (UWB), which makes use of a broad frequency range for efficient communication, fast data transmission, and precise position recognition.
Amjad Kadhum Majeed +3 more
doaj +1 more source
Design Concept of High‐Power RF/Microwave Termination With a Cascade of Π‐Type Attenuation Networks
A high‐power RF/microwave resistor termination, with a cascade of π‐type resistor attenuation networks, multi‐segment microstrip structure and electromagnetic constraint metal carrier, is designed to improve the voltage standing wave ratio (VSWR), especially in the high frequency band and increase the power capacity by reducing the risk of local ...
Yu Liu +6 more
wiley +1 more source
Method of the coordination of the antenna on two it is considerable the spaced apart frequencies
In article the method of the coordination of the antenna on two considerably spaced apart frequencies is considered. Edge conditions of usage of the given method are defined and examples of calculation of lengths of the matching transformer and idling ...
V.A. Neganov +3 more
doaj
A Low Profile Dual‐Polarised Dual‐Band Base‐Station Antenna With Bandwidth Extension
A dual‐polarised, dual‐band, miniaturised and broadband base‐station antenna is proposed. For the LB dipole arm, a vertically bent horizontal dipole structure is adopted to extend the operating frequency downward to 617 MHz while preserving the LB upper‐band performance.
Zhou‐fu Lin +2 more
wiley +1 more source
In this paper, a compact dual-polarized ultra-wideband dipole antenna is realized by exciting three resonant modes using double-loop (DL) dipoles with stepped exponential-shaped (ES) arms.
Yaohui Zhang +4 more
doaj +1 more source
VSWR value measurement analysis using Direct Digital Synthesizer [PDF]
SWR Analyzer is an electronic device radio is useful to know the value of VSWR and antenna impedance without the use of radio tranciever. In this final use Direct Digital Synthesizer (DDS) to generatewaveforms analog digitally.
Natalia, Lorenza Louis
core
A Full-Band Digital Television Transmitting Antenna Array With Dual-Layer Bowtie Dipole Unit
A full-band digital television (DTV) transmitting antenna array with dual-layer bowtie dipole unit is proposed in this paper. The dual-layer bowtie dipole is utilized as the antenna unit to broaden the frequency bandwidth, and its key parameters are ...
Haijing Yu +3 more
doaj +1 more source

