Design and Testing of a Single-Layer Microstrip Ultrawideband 90<sup>°</sup> Differential Phase Shifter

Yeung, Sai Ho; Mei, Zicong; Sarkar, Tapan K.; Salazar-Palma, M.

doi:10.1109/lmwc.2013.2244875

Cited by 48 publications

(23 citation statements)

References 11 publications

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“…Furthermore, use of coupled-lines and ground plane slots increase insertion losses, particularly at higher microwave frequencies. An alternative approach is by using different forms of shunt stubs [10][11][12][13][14]. In [10], a pair of parallel short-and open-stubs is used for small phase shift values.…”

Section: Introductionmentioning

confidence: 99%

“…In [10], a pair of parallel short-and open-stubs is used for small phase shift values. For the bandwidth improvement, the open-stub is usually replaced by multiple circular stubs [11], T-shape open-stubs [12] and multi-section radial stub [13,14]. In [15], a combination of open-stub and coupled-line is used to design filtering phase shifter.…”

Section: Introductionmentioning

confidence: 99%

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Low loss and high fabrication tolerant phase shifters using signal interference technique

Mandal

Singh

Bankar

2019

IET Microwaves, Antennas & Propagation

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This article presents a new design of differential phase shifters based on signal interference technique. Two transmission line sections joined at their both ends is used as the phase shifting unit. Properties of the phase shifters are solely determined by the lengths and characteristic impedances of connecting transmission line sections. A lossless transmission line model is used to obtain design equations and design graphs for the phase shifters. It is observed that a fixed reference line can provide 0° to 90° differential phase shifts. While a varying reference line provides 0° to 360° differential phase shifts. Six differential phase shifters are fabricated to check the theoretical predictions at 5 GHz. All of them provide excellent phase and insertion loss performances. The main advantages are simple design technique and low insertion loss. Since no coupled‐line or open‐stub is used, the structure can accept higher fabrication tolerances compared to other popular methods.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Low loss and high fabrication tolerant phase shifters using signal interference technique

Mandal

Singh

Bankar

2019

IET Microwaves, Antennas & Propagation

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“…Different techniques were developed in recent years and many schemes and configurations were proposed . Microstrip‐coplanar waveguide, Schiffman technique, loaded transmission line, coupled structure, and microstrip‐slot transitions are some of the methods used in building phase shifters. In the study of Kulandhaisamy et al, a planar dual frequency phase shifter is described.…”

Section: Introductionmentioning

confidence: 99%

Novel flowchart design of frequency independent 180° phase shifters

Tebache

Ghanem²,

Belouchrani

et al. 2018

Micro & Optical Tech Letters

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This paper describes the design guidelines for frequency independent 180° phase shifters. The proposed configuration is based on microstrip slot transition technique. The frequency independence feature is due to comparing two quasi‐identical structures and the phase inversion (180°) is related to the chosen inverted orientation of the main line compared to the reference one. Moreover, two different schemes are designed and manufactured and a good simulation to measurement agreement is demonstrated. Thus, interesting results are obtained (more than 10 dB return loss, less than 2.1 dB insertion loss and less than ± 3.6° phase deviation).

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“…Differential phase shifters are frequently exploited in communication systems such as phased array antennas and microwave control devices. This appliance is made of main and reference lines which produce a constant differential phase shift between them [1][2][3].…”

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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Design and Testing of a Single-Layer Microstrip Ultrawideband 90^° Differential Phase Shifter

Cited by 48 publications

References 11 publications

Low loss and high fabrication tolerant phase shifters using signal interference technique

Low loss and high fabrication tolerant phase shifters using signal interference technique

Novel flowchart design of frequency independent 180° phase shifters

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

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Design and Testing of a Single-Layer Microstrip Ultrawideband 90° Differential Phase Shifter

Cited by 48 publications

References 11 publications

Low loss and high fabrication tolerant phase shifters using signal interference technique

Low loss and high fabrication tolerant phase shifters using signal interference technique

Novel flowchart design of frequency independent 180° phase shifters

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

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Design and Testing of a Single-Layer Microstrip Ultrawideband 90^° Differential Phase Shifter