Compact tunable Ku-band Schiffman phase shifter for beam-steering applications

Ouali, Rawia; Osman, Lotfi; Razban, Tchanguiz; Mahé, Yann

doi:10.1109/icmcs.2016.7905663

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Cited by 4 publications

(2 citation statements)

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“…The phase shifter whose delay lines are implemented using the Hilbert fractal line is described in [14]. In [15], the design of a modified Schiffman phase shifter is presented, which is capable of providing a smooth phase change at the output due to a change in the voltage on the diode. A tunable phase shifter based on liquid crystals for low-power microwave applications is presented in [16].…”

Section: Introductionmentioning

confidence: 99%

Compact two-position phase shifter

Letavin¹

2022

Telfor J

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Section: Introductionmentioning

confidence: 99%

Compact two-position phase shifter

Letavin¹

2022

Telfor J

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“…The Schiffman phase shifter compensated with varactor diodes is a good candidate for beam steering applications because of its potential to achieve a continuously variable phase shift throughout a large frequency band keeping the compactness of the design [14]. This phase shifter model showed in Fig.…”

Section: Introductionmentioning

confidence: 99%

Electronically Reconfigurable Two-Stage Schiffman Phase Shifter for Ku Band Beam Steering Applications

Wali¹,

Osman²,

Razban³

et al. 2018

ijacsa

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An electronically reconfigurable phase shifter using two Schiffman sections is performed for beam steering applications in Ku band. The proposed phase shifter consists of only two cascaded coupled-line sections with the reference line removed. This circuit is loaded by varactor diodes that ensure its tunability over a wide bandwidth. By supplying these varactor diodes with suitable bias voltages, a phase shift is continuously adjusted and reached up to 168° at 12.7 GHz with low insertion losses according to the simulations. Thus, the proposed two-stage phase shifter is able to reach a beam steering angle of 28.6° at 12.7 GHz with only one control voltage. The proposed structure exhibits that our phase shifter has a compact size and a large phase shifting range throughout the Ku band. The tunable phase shifter is prototyped and the measurement results are presented.

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