Ferroelectric phase shifters for electronically steerable antenna systems

1992 ◽  
Author(s):  
D.K. Ghodgaonkar ◽  
R. Hughes ◽  
F. Selmi ◽  
V.V. Varadan ◽  
V.K. Varadan
Keyword(s):  
Ferroelectric Phase ◽  
Phase Shifters ◽  
Steerable Antenna ◽  
Antenna Systems

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

Ferroelectric phase shifters and their performance in microwave phased array antennas

1995 ◽  
Vol 8 (1-2) ◽  
pp. 65-76 ◽  
Author(s):  
R. Babbitt ◽  
T. Koscica ◽  
W. Drach ◽  
L. Didomenico
Keyword(s):  
Phased Array ◽  
Ferroelectric Phase ◽  
Phase Shifters ◽  
Phased Array Antennas ◽  
Array Antennas

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.

scholarly journals Analysis and Optimization of Thin-Film Ferroelectric Phase Shifters

1999 ◽  
Vol 603 ◽  
Author(s):  
R. R. Romanofsky ◽  
F. W. Van Keuls ◽  
J. D. Warner ◽  
C. H. Mueller ◽  
S. A. Alterovitz ◽  
...  
Keyword(s):  
Insertion Loss ◽  
Room Temperature ◽  
Phase Shifter ◽  
Ferroelectric Phase ◽  
Phase Shifters ◽  
Phased Array Antenna ◽  
New Type ◽  
Novel Devices ◽  
K Band

AbstractMicrowave phase shifters have been fabricated from (YBa2Cu3 O7-δ or Au)/SrTiO3 and Au/BaxSr1−xTiO3 films on LaAlO3 and MgO substrates. These coupled microstrip devices rival the performance of their semiconductor counterparts at Ku- and K-band frequencies. Typical insertion loss for room temperature ferroelectric phase shifters at K-band is ≈5 dB. An experimental and theoretical investigation of these novel devices explains the role of the ferroelectric film in overall device performance. A roadmap to the development of a 3 dB insertion loss phase shifter that would enable a new type of phased array antenna is discussed.

30 GHz Electronically Steerable Antennas Using BaxSr1−xTiO3-Based Room-Temperature Phase Shifters

1999 ◽  
Vol 603 ◽  
Author(s):  
C. M. Carlson ◽  
T. V. Rivkin ◽  
P. A. Parilla ◽  
J. D. Perkins ◽  
D. S. Ginley ◽  
...  
Keyword(s):  
Ferroelectric Phase ◽  
Beam Steering ◽  
Composite Films ◽  
Satellite Communications ◽  
Side Lobe ◽  
Phase Shifters ◽  
Temperature Phase ◽  
Central Lobe ◽  
Power Handling Capability ◽  
Half Power

AbstractWe report the performance of 16-element phased array antennas operating at 30 GHz and ambient temperature. These antennas use BaxSr1−xTiO3(BST)-based phase shifters to produce the beam steering. Ferroelectric phase shifters offer advantages over current semiconductor and ferrite devices including faster switching speeds and lower costs. Also, ferroelectric phase shifters offer higher power handling capability than semiconductor devices and also have high radiation resistance. We made phase shifters from laser-ablated epitaxial BST films as well as from polycrystalline BST-oxide composite films. Although neither the devices nor the materials themselves are fully optimized, phase shifters have shown > 360° of phase shift with < 350 V DC bias (E < 9 V/µm) and ∼8 dB insertion loss. With ferroelectric phase shifters incorporated, antennas show radiation patterns with central-lobe half-power widths of ∼13° and side lobe intensities down by more than 10 dB. Using the phase shifters, the central lobe can be shifted, or “steered,” by ±18° in either direction. These results demonstrate a first step toward a prototype steerable antenna for 20–30 GHz satellite communications as well as other applications.

DESIGN OF A Ka-BAND COUPLED MICROSTRIP LINE FERROELECTRIC PHASE SHIFTERS

2005 ◽  
Vol 77 (1) ◽  
pp. 129-137 ◽  
Author(s):  
HAN-CHEOL RYU ◽  
SEUNG EON MOON ◽  
SU-JAE LEE ◽  
MIN-HWAN KWAK ◽  
YOUNG-TAE KIM ◽  
...  
Keyword(s):  
Microstrip Line ◽  
Ferroelectric Phase ◽  
Phase Shifters ◽  
Ka Band
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