Results 81 to 90 of about 314,572 (210)
Compact fully metallic multi‐mode waveguide antenna for cellular communications
IET Microwaves, Antennas & PropagationThe needed isolation between elements for high‐performance beam steering array antennas is a challenging task especially when the distance between the antenna elements is reduced.
Ali Mokhtarani +2 more
doaj +1 more source
Frontiers in Antennas and PropagationThe objective of this manuscript is to analyze and electromagnetically simulate two different horn antenna configurations, namely, a pyramidal horn antenna and a conical horn antenna.
Hatice-Andreea Topal +1 more
doaj +1 more source
Advanced Electronic Materials, EarlyView.A compact passive engineered surface converts changes in microwave frequency into many distinct illumination patterns, allowing nearby objects to be imaged without mechanical scanning, active tuning, or a large antenna array. Operating from 18 to 28 GHz, the single‐port system uses measured field patterns to reconstruct metallic targets and distinguish
Mohammed H. Arif +6 more
wiley +1 more source
An Analysis of the Behaviour of Flanged Sectoral Horn Antennas & Corner Reflector Systems [PDF]
, 1981 25-30The resemblances in the behaviour of flanged sectoral horn antennas and comer reflector systems in beam shaping and tilting have been analyzed. The results obtained in the two systems suggest the possibility of interpreting the flanged sectoral horn
Mathew, K T, Nair, K G
core
THz photomixing : comparison between horn and spiral antennas
, 2009 International audienceWe report our investigation on low-temperature-grown GaAs THz photomixers using two different kind of antennas: silicon lens coupled spiral antenna and transverse electromagnetic horn antenna.
Peytavit, Emilien +18 more
core +1 more source
802GHz integrated horn antennas imaging array [PDF]
, 1991 This short paper presents the pattern measurements at 802GHz of a single element in a 256-element integrated horn imaging array. The integrated-horn antenna consists of a dipole-antenna suspended on a 1μm dielectric membrane inside a pyramidal cavity ...
Rebeiz, Gabriel M. +3 more
core +1 more source
Autonomous Charging and Battery Swapping for Unmanned Aerial Vehicles: A Review
Advanced Intelligent Systems, EarlyView.This review evaluates major autonomous charging and battery swapping methods for unmanned aerial vehicles (UAVs) against a single question: how close each is to sustained unattended operation. Rather than ranking them by charging performance, it identifies the limitation that most restricts each method, and briefly outlines the supporting technologies ...
Zelin Wu +5 more
wiley +1 more source
IET Microwaves, Antennas & PropagationThis paper presents a novel dual‐band waveguide‐fed circularly polarised (CP) horn antenna for the feeder of synthetic aperture radar (SAR) onboard microsatellite.
Derry Permana Yusuf +4 more
doaj +1 more source
Gaussian profiled horn antennas [PDF]
, 1999 Trabajo presentado al ISRAMT’99. 7th International Symposium on Recent Advances in Microwave Technology. Málaga, 1999.In many different applications parameters such efficiency, gain, directivity, etc., are really critical.
Gonzalo García, Ramón +2 more
core
Horn antennas with integrated notch filters
, 2015 In this communication, we present the design of filtering horn antennas with band-stop characteristics obtained through the use of electrically small magnetic resonators.
BILOTTI, FILIBERTO +3 more
core +1 more source