Ceramic phase-shifters for electronically steerable antenna systems

1991 ◽  
Author(s):  
Fathi Selmi ◽  
Deepak K. Ghodgaonkar ◽  
Raymond Hughes ◽  
Vasundara V. Varadan ◽  
Vijay K. Varadan
Keyword(s):  
Phase Shifters ◽  
Ceramic Phase ◽  
Steerable Antenna ◽  
Antenna Systems

Additive Manufacturing of Steerable Antenna Systems for 5G and Adaptive Cruise Control Applications

2019 ◽  
pp. 1-24
Author(s):  
Rupesh Kumar ◽  
Cyrille Menudier
Keyword(s):  
Additive Manufacturing ◽  
Adaptive Cruise Control ◽  
Manufacturing Technology ◽  
Cruise Control ◽  
Additive Manufacturing Technology ◽  
Front End ◽  
5G Network ◽  
Steerable Antenna ◽  
Rf Performance ◽  
Antenna Systems

This chapter gives an insight view of the evolving additive manufacturing technology and its application for designing steerable front-end (FE) array antenna architecture dedicated to mmWave for the 5G network and the adaptive cruise control (ACC) applications. The manufacturing of RF system is a challenging work because it comes with complex designs, a long realization time, and high cost as well as weight. Technically, all these challenges could be addressed up with the use of additive manufacturing technology. It allows an increased flexibility in the manufacturing of complex designs such as steerable beamforming and other advanced RF products. Traditional machining technologies used to manufacture RF products are limited in their ability to produce complex shape. The AM technology allows to realize the entire designs in one single time-phase which positively impacts mass, cost, realization time, assembly quality and RF performance.

On the Radiation Tolerance of SiGe HBT and CMOS-Based Phase Shifters for Space-Based, Phased-Array Antenna Systems

2008 ◽  
Vol 55 (6) ◽  
pp. 3246-3252 ◽  
Author(s):  
Tushar K. Thrivikraman ◽  
Peng Cheng ◽  
Stanley D. Phillips ◽  
Jonathan P. Comeau ◽  
Matt A. Morton ◽  
...  
Keyword(s):  
Phased Array ◽  
Phase Shifters ◽  
Array Antenna ◽  
Radiation Tolerance ◽  
Phased Array Antenna ◽  
Sige Hbt ◽  
Antenna Systems

Tunable ceramic phase shifters and their applications

1993 ◽  
Author(s):  
Fathi Selmi ◽  
Raymond Hughes ◽  
Vijay K. Varadan ◽  
Vasundara V. Varadan
Keyword(s):  
Phase Shifters ◽  
Ceramic Phase

scholarly journals STEERABLE TOROIDAL BIFOCAL LENS-ARRAY ANTENNA IN 57–64 GHZ RANGE

2019 ◽  
Vol 22 (3) ◽  
pp. 36-47
Author(s):  
Alexander A. Maltsev ◽  
Valentin M. Seleznev ◽  
Alexander S. Rulkov ◽  
Olesya V. Bolkhovskaya
Keyword(s):  
Low Cost ◽  
Antenna System ◽  
Base Station ◽  
Cellular Systems ◽  
Array Antenna ◽  
Lens Antenna ◽  
Lens Array ◽  
Steerable Antenna ◽  
Antenna Systems ◽  
Relay Stations

Introduction. Currently, one of the most promising approaches of the 5th generation mobile wireless systems development is the deployment of heterogeneous networks based on existing LTE cellular systems with large and small cells. The main elements of such networks can be small low cost relay stations equipped with highly directional steerable antenna systems to connect small cells with LTE base station serving macrocell. Objective. Existing solutions are either too expensive or not allowing flexible rearrangement of current information transmission lines. The objective of this work is to develop antenna equipment for low cost relay stations based on simple steerable antenna systems of millimetre wavelength (57-64 GHz), which allow beamsteering in both azimuth and elevation planes. Methods and materials. The developed steerable bifocal lens antenna system is a lens of a special shape made of a high molecular weight polyethylene and integrated with a phased array antenna. A key feature of the designed antenna system is a wide-angle beamsteering in the azimuth plane and ability to adjust the beam in the elevation plane. The calculation of the lens profiles was carried out by means of an approximation of geometrical optics in Matlab, and the main technical characteristics of the lens antenna system were obtained by direct electromagnetic modelling in CST Microwave Studio. Results. The prototype of the steerable bifocal lens-array antenna system is developed and its characteristics are studied. The following technical characteristics are achieved in the 57–64 GHz range: beamsteering in the elevation plane is ±3º, beamsteering in the azimuth plane is ±40º, and antenna gain is from 20 to 27.5 dBi for all angles. Conclusion. It was shown that the developed antenna system can be successfully used as receiving and transmission antenna equipment of small relay stations that transmit information in the frequency range of 57-64 GHz over a distance of 100-300 m.

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