Reconfigurable 1.5–2.5-GHz phase shifter with 360o relative phase-shift range and reduced insertion-loss variation

AbstractPeriodically loaded line phase shifter circuits using voltage tunable BaSrTiO3 (BST) parallel plate capacitors have been demonstrated at X-band. The first such phase shifter circuit was capable of 100° of phase shift with an insertion loss of 7.6 dB at 10 GHz. Subsequently, the monolithic fabrication procedure was refined resulting in an improved phase shifter circuit with 200° of phase shift and an insertion loss of 6.2 dB at 10 GHz. In addition to promising loss performance (32°/dB) at 10 GHz, the circuits reported here have several desirable features such as moderate control voltages (20 V), room temperature operation, and compatibility with monolithic fabrication techniques.

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Effect of relative phase-shift of magnetic field axes on armature reaction and performance of Hybrid Permanent Magnet Induction Machine

2016 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) ◽

10.1109/pedes.2016.7914460 ◽

2016 ◽

Author(s):

Praveen Kumar ◽

Md. Motiur Reza ◽

R. K. Srivastava

Keyword(s):

Magnetic Field ◽

Phase Shift ◽

Permanent Magnet ◽

Relative Phase ◽

Induction Machine ◽

Armature Reaction ◽

Relative Phase Shift ◽

And Performance

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Propagation of relative phase shift of apertured Cos beams

Optik ◽

10.1078/0030-4026-00208 ◽

2003 ◽

Vol 113 (12) ◽

pp. 553-555 ◽

Cited By ~ 3

Author(s):

Daomu Zhao ◽

Ruihua Shao ◽

Shaomin Wang ◽

Weichun Zhang

Keyword(s):

Phase Shift ◽

Relative Phase ◽

Relative Phase Shift

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Monolithic GaAs phase shifter circuit with low insertion loss and continuous 0-360° phase shift at 20 GHz

IEEE Microwave and Guided Wave Letters ◽

10.1109/75.752115 ◽

1999 ◽

Vol 9 (1) ◽

pp. 31-33 ◽

Cited By ~ 40

Author(s):

A.S. Nagra ◽

Jian Xu ◽

E. Erker ◽

R.A. York

Keyword(s):

Phase Shift ◽

Insertion Loss ◽

Phase Shifter ◽

Low Insertion Loss

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An explicit estimate of time delay between two signals, with an unknown relative phase shift

IEEE Transactions on Acoustics Speech and Signal Processing ◽

10.1109/tassp.1982.1163968 ◽

1982 ◽

Vol 30 (6) ◽

pp. 1006-1007 ◽

Cited By ~ 6

Author(s):

D. Hertz ◽

J. Reiss

Keyword(s):

Time Delay ◽

Phase Shift ◽

Relative Phase ◽

Explicit Estimate ◽

Relative Phase Shift

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Design & Modeling of 6-Bit Low Loss Ka Band Distributed MEMS Phase Shifter on GaAs

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.403-408.4179 ◽

2011 ◽

Vol 403-408 ◽

pp. 4179-4183

Author(s):

Anesh K. Sharma ◽

Ashu K. Gautam ◽

D.V.K. Sastry ◽

S.G. Singh

Keyword(s):

Phase Shift ◽

Insertion Loss ◽

Phase Shifter ◽

Structural Parameters ◽

Coplanar Waveguide ◽

Actuation Voltage ◽

Ka Band ◽

Rf Systems ◽

Total Phase ◽

Digital Phase Shifter

This paper presents the design & modeling of distributed MEMS phase shifter for Ka band RF systems. The phase shift can be achieved by periodically placing the MEMS bridge variable capacitors as per Bragg frequency criteria on coplanar waveguide (CPW) using GaAs substrate. The EM & electromechanical simulation are carried out with various structural parameters to optimize the designs. The novelties like low insertion loss, low actuation voltage with distributed actuation pads & separate DC and RF are used to make the design unique. The EM simulations are carried out with HFSS and an insertion loss of -3.49 dB at 36GHz for a total Phase shift of 360 deg. was achieved with return loss of - 20.6 dB over a frequency band 34-38 GHz. The electromechanical simulations are carried to achieve the low actuation voltage of 10.3V. The significance of this study is the realization of the digital phase shifter through DMTL approach.

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