Microwave phase shifters based on sol-gel derived Ba&lt;inf&gt;0.3&lt;/inf&gt;Sr&lt;inf&gt;0.7&lt;/inf&gt;TiO&lt;inf&gt;3&lt;/inf&gt; ferroelectric thin films

Sherman, Vladimir O.; Yamada, Tomoaki; Noeth, Andreas; Setter, N.; Mandeljc, Mira; Malič, Barbara; Kosec, Marija; Vukadinovic, M.

doi:10.1109/eumc.2007.4405439

Cited by 7 publications

(8 citation statements)

References 10 publications

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“…[1][2][3][4][5][6] Ferroelectric materials are one of the candidates that are considered for use in these applications. These materials feature a change in dielectric permittivity as a function of an applied electric field, and this property can be utilized in tunable electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Tunable microwave devices using low-sintering-temperature screen-printed barium strontium titanate (BST) thick films

Palukuru

Peräntie

Komulainen

et al. 2010

Journal of the European Ceramic Society

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Section: Introductionmentioning

confidence: 99%

Tunable microwave devices using low-sintering-temperature screen-printed barium strontium titanate (BST) thick films

Palukuru

Peräntie

Komulainen

et al. 2010

Journal of the European Ceramic Society

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“…The main advantages of LHTLs (a subset of CRLH TLs) include their compactness (due to a larger phase constant) and higher sensitivity to capacitance tunability within a particular frequency range, compared to their RHTL counterparts [16,[34][35][36]. Moreover, it has been shown that the combination of LHTL with the BST leads to an almost constant magnitude over the tuning states [16].…”

Section: Bst/polymer Based Lhtl Phase Shiftersmentioning

confidence: 99%

Design and Simulation of Fully Printable Conformal Antennas With BST/Polymer Composite Based Phase Shifters

Haghzadeh¹,

Jaradat²,

Armiento³

et al. 2016

PIER C

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Abstract-A fully printable and conformal antenna array on a flexible substrate with a new LeftHanded Transmission Line (LHTL) phase shifter based on a tunable Barium Strontium Titanate (BST)/polymer composite is proposed and computationally studied for radiation pattern correction and beam steering applications. First, the subject 1 × 4 rectangular patch antenna array is configured as a curved conformal antenna, with both convex and concave bending profiles, and the effects of bending on the performance are analyzed. The maximum gain of the simulated array is reduced from the flat case level by 34.4% and 34.5% for convex and concave bending, respectively. A phase compensation technique utilizing the LHTL phase shifters with a coplanar design is used to improve the degraded radiation patterns of the conformal antennas. Simulations indicate that the gain of the bent antenna array can be improved by 63.8% and 68% for convex and concave bending, respectively. For the beam steering application, the proposed phase shifters with a microstrip design are used to steer the radiation beam of the antenna array, in planar configuration, to both negative and positive scan angles, thus realizing a phased array antenna.

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“…Different approaches for phase shifters have been reported employing BST thin and thick films, such as coplanar waveguide phase shifters [3], periodically loaded delay lines [4], [5], filter type phase shifters [6], [7], and tunable left handed (LH) transmission lines [8], [9].…”

Section: Introductionmentioning

confidence: 99%

Compact left handed coplanar strip line phase shifter on screen printed BST

Sazegar

Zheng

Maune

et al. 2011

2011 IEEE MTT-S International Microwave Symposium

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A compact continuously tunable phase shifter is presented employing integrated ferroelectric varactors based on screen printed BST thick film. The circuit is based on left handed transmission line topology that allows to considerably reduce the module size. The proposed design has a total length of 1.3mm and provides a differential phase shift up to 330 • . Furthermore, the phase shifter is in coplanar strip configuration which makes it suitable for systems consisting of balanced components.

show abstract

Microwave phase shifters based on sol-gel derived Ba<inf>0.3</inf>Sr<inf>0.7</inf>TiO<inf>3</inf> ferroelectric thin films

Cited by 7 publications

References 10 publications

Tunable microwave devices using low-sintering-temperature screen-printed barium strontium titanate (BST) thick films

Tunable microwave devices using low-sintering-temperature screen-printed barium strontium titanate (BST) thick films

Design and Simulation of Fully Printable Conformal Antennas With BST/Polymer Composite Based Phase Shifters

Compact left handed coplanar strip line phase shifter on screen printed BST

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