Design of 45 degree microstrip phase shifter for beam forming network application using parallel coupled lines

Marini, S. El; Zbitou, Jamal; Mandry, Rachid; Errkik, Ahmed; Tajmouati, Abdelali; Latrach, Mohamed

doi:10.1109/wits.2017.7934687

Cited by 8 publications

(2 citation statements)

References 10 publications

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“…Among various types of differential phase shifters, those realized in planar technology, either stripline [1], microstrip line [2] or substrate integrated waveguide (SIW) [3] are widely adopted due to their low cost, small amplitude imbalance and widebandwidth characteristics. In general, wideband planar phase shifters can be characterized into several categories: Schiffman phase shifters [1,2,[4][5][6][7][8][9][10][11][12], loaded-line phase shifters [13][14][15][16][17][18], broadside coupling phase shifters [19][20][21] and others [22][23][24]. Compared with their counterparts, the Schiffman phase shifters are compact in size, easy to fabricate using Print Circuit Board This paper was submitted for review on Oct. 25, 2021.…”

Section: Introductionmentioning

confidence: 99%

Ultrawideband Schiffman Phase Shifter Designed With Deep Neural Networks

Zheng

Tang

et al. 2022

IEEE Trans. Microwave Theory Techn.

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This paper presents a novel method for the forward modeling and inverse design of a class of Schiffman phase shifters using Deep Neural Networks (DNNs). Since DNNs are capable of mapping the highly nonlinear correlations between inputs and outputs, we constructed a fully-connected DNN to predict the electromagnetic (EM) responses of Schiffman phase shifters given their physical dimensions. Based on this fast and accurate modeling tool, a cascaded inverse design DNN was then built and trained to achieve instant on-demand phase shifter designs. This approach is versatile and can be easily modified to accomplish different design goals. To demonstrate its efficacy, we trained two DNNs to realize Schiffman phase shifter designs with different bandwidths (40% and 60%) and arbitrary phase shift targets (0 -180°). Simulation results and experimental verifications substantiate that their performances are comparable to the stateof-the-art designs. Moreover, we discussed the proposed methods' potential in dealing with design tasks that are non-intuitive and beyond the scope of existing approaches. We envision that this DNN approach can be extended to the design of various EM components including but not limited to antennas, filters, power dividers, and frequency selective surfaces (FSS).

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Section: Introductionmentioning

confidence: 99%

Ultrawideband Schiffman Phase Shifter Designed With Deep Neural Networks

Zheng

Tang

et al. 2022

IEEE Trans. Microwave Theory Techn.

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“…Broadband phase shifters are common useful passive microwave devices, which are widely and extremely demanded in modern wireless communication systems, such as antenna feeding networks, beamforming, and electronic beam-scanning of phased arrays [1][2][3][4][5][6][7][8][9][10][11]. As solutions to design planar phase shifters with broadband characteristics, several kinds of structures have been proposed, such as Schiffman phase shifters, broadside coupling structures, and loaded transmission line configurations.…”

Section: Introductionmentioning

confidence: 99%

Broadband planar 90 degrees loaded-stub phase shifter

et al. 2020

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The differential phase shifter is an interesting four-port passive microwave network composed of two separate lines, the main line and the reference line, and providing stable phase difference between the two output signals over the specified bandwidth of interest. The most common differential phase shifter is the coupled-line Schiffman phase shifter. In this paper, a novel 90 degrees differential microstrip phase shifter configuration employing a half wavelength transmission line loaded with three open stubs is presented, the proposed design could achieve excellent performance with low phase variation over a wide bandwidth compared to the standard Schiffman phase shifter. The simulated results accomplished with the use of CST Microwave Studio and advanced design system (ADS), were found to be in good agreement and have shown that the proposed loaded-stub phase shifter achieved less than 1.1 dB insertion loss, greater than 13 dB return loss and constant 90±5 degrees phase shift over an 89 percent bandwidth

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Design Approach and Comparison of Phase Shifter Performance in DOA Estimation System

Khedekar

2024

Wireless Pers Commun

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Design of 45 degree microstrip phase shifter for beam forming network application using parallel coupled lines

Cited by 8 publications

References 10 publications

Ultrawideband Schiffman Phase Shifter Designed With Deep Neural Networks

Ultrawideband Schiffman Phase Shifter Designed With Deep Neural Networks

Broadband planar 90 degrees loaded-stub phase shifter

Design Approach and Comparison of Phase Shifter Performance in DOA Estimation System

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