Integrated Lens Antennas

2017 ◽  
pp. 3-36 ◽  
Author(s):  
Artem V. Boriskin ◽  
Ronan Sauleau ◽  
Jorge R. Costa ◽  
Carlos Fernandes
Keyword(s):  
Lens Antennas

Microwave Non-Destructive Testing of Coatings and Paints Using Free Space Microwave Measurement

2005 ◽  
Vol 2 (2) ◽  
pp. 17
Author(s):  
Norhayati Hamzah ◽  
Deepak Kumar Ghodgaonkar ◽  
Kamal Faizin Che Kasim ◽  
Zaiki Awang
Keyword(s):  
Free Space ◽  
Protective Coatings ◽  
Microwave Measurement ◽  
Multiple Reflections ◽  
Destructive Testing ◽  
Lens Antennas ◽  
Coatings And Paints ◽  
Microwave Nondestructive Testing ◽  
Mode Transitions ◽  
Diffraction Effects

Microwave nondestructive testing (MNDT) techniques are applied to evaluate quality of anti-corrosive protective coatings and paints on metal surfaces. A tree-space microwave measurement (FSMM) system is used for MNDT of protective coatings. The FSMM system consists of transmit and receive spot-focusing horn lens antennas, a vector network analyzer, mode transitions and a computer. Diffraction effects at the edges of the sample are minimized by using spot-focusing horn lens antennas. Errors due to multiple reflections between antennas are corrected by using free-space LRL (line, reflect, line) calibration technique. We have measured complex reflection coefficient of polyurethane based paint which is coated on brass plates.

scholarly journals Ultra-Wideband Dielectric Lens Antennas for Beamsteering Systems

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Renan Alves dos Santos ◽  
Gabriel Lobão da Silva Fré ◽  
Luís Gustavo da Silva ◽  
Marcelo Carneiro de Paiva ◽  
Danilo Henrique Spadoti
Keyword(s):  
Antenna Array ◽  
Ultra Wideband ◽  
Printed Antennas ◽  
Lens Antennas ◽  
Dielectric Lens ◽  
Dielectric Lenses

This paper presents a high-directivity ultra-wideband beamsteering antenna array. An innovative beamsteering system based on hemispherical dielectric lenses fed by a set of different printed antennas is proposed. Diversity of signals in different spatial positions can be radiated at the same time. A prototype was manufactured and characterized, operating in a bandwidth varying from 8 GHz to 12 GHz with gain up to 13 dBi.

Comparison of 122 GHz Lens Antennas for System-on-Chip FMCW Radar With Minimum Back Reflection and High Gain

2020 ◽  
Vol 19 (12) ◽  
pp. 2329-2333
Author(s):  
Ayse Ecem Bezer ◽  
Mehmet Abbak ◽  
Tugrul Gursoy ◽  
Umut Aydin
Keyword(s):  
High Gain ◽  
System On Chip ◽  
Fmcw Radar ◽  
Lens Antennas ◽  
Back Reflection ◽  
On Chip

Matched and wideband flat lens antennas using symmetric graded dielectrics

2017 ◽  
Vol 35 (1) ◽  
pp. 73 ◽  
Author(s):  
Mohammad Khalaj-Amirhosseini ◽  
Mohammad-Mahdi Taskhiri
Keyword(s):  
Lens Antennas ◽  
Flat Lens

Generalized Ray-tracing Model for Modified Geodesic Luneburg Lens Antennas

2021 ◽  
Author(s):  
Qingbi Liao ◽  
Francisco Mesa ◽  
Oskar Zetterstrom ◽  
Nelson J. G. Fonseca ◽  
Oscar Quevedo-Teruel
Keyword(s):  
Ray Tracing ◽  
Lens Antennas ◽  
Luneburg Lens ◽  
Ray Tracing Model

scholarly journals Integrated Lens Antennas for E-Band

2018 ◽  
Author(s):  
Sabin Kumar Karki ◽  
Juha Ala-Laurinaho ◽  
Aki Kantunen ◽  
Ville Viikari
Keyword(s):  
Lens Antennas

Comments on corrections to "An improved design method of Rotman lens antennas"

1995 ◽  
Vol 43 (6) ◽  
pp. 634 ◽  
Author(s):  
T. Katagi ◽  
S. Mano ◽  
S. Sato
Keyword(s):  
Design Method ◽  
Lens Antennas ◽  
Improved Design
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