Results 221 to 230 of about 705 (258)

Full wave analysis of leaky-wave antennas

2008 IEEE Antennas and Propagation Society International Symposium, 2008
Leakage from slotted waveguides is a well-known phenomenon and has been thoroughly investigated during the past decades. The interest in leaky-wave antennas mainly stems from the possibility of scanning the beam with frequency [1]. The analysis of slotted waveguides has been first performed by means of a transverse network representation of the open ...
LUCIDO, Mario, MIGLIORE, Marco Donald, PANARIELLO, Gaetano, SCHETTINO, Fulvio   +3 more
openaire   +1 more source

B7. Leaky-Wave Coaxial Antenna

2013 30th National Radio Science Conference (NRSC), 2013
Analysis and design of a coaxial leaky wave antenna with partially reflecting outer surface are presented. The leaky wave properties are controlled by adjusting the surface impedance of the outer surface, the filling dielectric constant and the dimensions of the inner and outer radii.
openaire   +1 more source

Stepped leaky-wave antennas for microwave and millimeter wave applications

Annales Des Télécommunications, 1997
This work presents the complete general features of a recently proposed class of leaky-wave antennas, derived from stepped rectangular-section waveguides with radiating slits. Based on very favorable topological features, straightforward but extremely effective design procedures are shown to be possible for achieving sophisticated radiation properties.
DI NALLO C., FREZZA, Fabrizio, GALLI, Alessandro, GEROSA, Giorgio, LAMPARIELLO, Paolo   +4 more
openaire   +3 more sources

Uniform Waveguide Leaky Wave Antennas

SPIE Proceedings, 1985
Traveling wave antennas for the millimeter wave range face two main problems: increased metal loss, and fabrication difficulties due to the smaller wavelengths. To overcome these two problems, a new class of uniform leaky wave antennas have been introduced.
openaire   +1 more source

A Reconfigurable Leaky Wave Antenna

2023 33rd International Conference Radioelektronika (RADIOELEKTRONIKA), 2023
Jan Machac, Milan Svanda, Vaclav Kabourek   +2 more
openaire   +1 more source

Infectious disease in an era of global change

Nature Reviews Microbiology, 2021
Rachel E Baker, Ayesha S Mahmud, Ian F Miller   +2 more
exaly  

Time-Modulated Leaky-Wave Antennas

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI), 2022
Geng-Bo Wu, Jun Yan Dai, Chi Hou Chan
openaire   +1 more source

Leaky-wave antenna

The antenna has a layer arrangement (30) with three metallized layers (32, 34, 36) that are arranged parallel to each other and separated from each other by dielectric sheets (38, 40). Two of the layers comprise a two dimensions periodical metallization structure, and the third layer comprises a continuous metallization region. A stimulation structure (
openaire  

Broadband leaky wave antennas

An antenna comprises a conically shaped body of dielectric material. Cross-sections of the body have truncated elliptical shape, wherein each shape is truncated substantially through a first focus of the elliptical shape along a truncation line that extends substantially perpendicularly to a main axis of the elliptical shape.
Neto, A., Gerini, G., Bruni, S., Sabbadini, M.   +3 more
openaire  

Challenges and opportunities of gravitational-wave searches at MHz to GHz frequencies

Living Reviews in Relativity, 2021
Odylio D Aguiar, Giancarlo Cella, Valerie Domcke   +2 more
exaly