Results 61 to 70 of about 136,904 (200)

A High-Pass Antenna Interference Cancellation Chip for Mutual Coupling Reduction of Antennas in Contiguous Frequency Bands

open access: yesIEEE Access, 2018
In this paper, an antenna interference cancellation chip (AICC) with a high-pass response is proposed to mitigate the mutual coupling of two antennas resonating in contiguous frequency bands.
Luyu Zhao   +5 more
doaj   +1 more source

Linear-to-Circular Polarization Transformer using Electrically Small Antennas

open access: yes, 2012
"In this contribution, a linear-to-circular polarization transformer based on the employment of electrically small antennas is presented. The proposed setup consists of a circular metallic disk with a sub-wavelength aperture through which two sets of ...
Alessandro Toscano   +5 more
core   +1 more source

Reconfigurable and multiband antennas with resonant and reactive loads [PDF]

open access: yes, 2020
Reactive and resonant loads have been used from the very beginning of antenna design to improve impedance matching, bandwidth, and current distributions on antennas, and to create multiband and reconfigurable antennas.Trap loaded dipoles are one of the ...
Winniford, Paul
core  

Analysis and design of self-adapting phased-array antennas on conformal surfaces [PDF]

open access: yes, 2022
This work deals with the study of conformal phased-array antennas, i.e. antennas designed to adapt to changing surfaces. The projection method is applied to different conformal arrays as a pattern recovery technique, and through the comparison of the ...
Mansutti, Giulia
core  

Analisys of Conformal Antennas for Avionics Applications

open access: yes, 2007
Conformal antennas might have an important impact on communication and navigation applications on aircraft, ships and other vehicles. This thesis work presents a general study on conformal antennas and their potential application on aircraft structures ...
Redondo Gonzalez, Maria del Carmen
core  

WLAN/WDS performance using directive antennas in highly mobile scenarios: experimental results [PDF]

open access: yes, 2008
This paper presents experimental results from a series of IEEE 802.11g studies to investigate the performance of vehicular to roadside wireless communications. In particular, two high-gain omni-directional antennas were used at the roadside access point,
Nix, AR   +3 more
core   +1 more source

Comparison of fabric and embroidered dipole antennas

open access: yes, 2013
Flexible antennas are an important component for wearable wireless devices of the future. A comparison between fabric and embroidered dipole antennas is performed to evaluate the suitability of different conductors as building blocks of textile antennas.
Fumeaux, I., Kaufmann, T., Fumeaux, C.
core  

SIW Multibeam Antenna Array at 30 GHz for 5G Mobile Devices

open access: yesIEEE Access, 2019
This paper presents a new phased array of substrate integrated waveguide (SIW) monopoles, characterized by simple structure, high gain, and large coverage, resulting as a good candidate for next 5G mobile handsets.
Carla Di Paola   +3 more
doaj   +1 more source

Design of planar inverted-F antennas (PIFA) for multiband wireless applications

open access: yes, 2009
A small three bands printed inverted-F antenna with independently controlling the resonant frequency is presented. The proposed antenna consists of two arms supported by shorting walls fed by 50 Ω microstrip transmission line and a ground plane.
AbuTarboush, HF   +11 more
core   +1 more source

A Dual-Band Polarization-Insensitive Frequency Selective Surface for Electromagnetic Shielding Applications

open access: yesSensors
This paper presents a novel polarization-insensitive dual-band frequency-selective surface (FSS)-based electromagnetic shield. The miniaturized FSS unit cell consists of a modified Jerusalem crossed loop and a corner-modified square loop.
Muhammad Idrees   +3 more
doaj   +1 more source

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