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Published March 10, 2024 | Version v5
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Quadrature/Non-Quadrature Branch Line Coupler with Equal/Unequal Power Division

  • 1. National Institute of Technology Rourkela

Description

This work provides a computer-aided design solution for non-quadrature (or quadrature) branch-line couplers with unequal (or equal) power divisions. The design application provides three topological choices: lumped, distributed and mixed (a combination of lumped and distributed). Each topology mainly has T and $\Pi$ sub-topologies. In addition, transmission line and stepped line topologies are included in distributed topology. The underlying design algorithms are developed using the Y-matrix method. The scattering parameters analysis of the designed coupler is also based on the Y-matrix method.  

The application is downloadable from Zenodo. It is free software and is available under Creative Commons Attribution 4.0 International. The software is developed using Python. After downloading the zip file BLC_and_DPD_Application, the user needs to extract the zip file and double-click on the exe file main.exe to open the application window. Interested user may go through the background theory [1].

Please report any bug or user experience to r.sinha30@gmail.com

[1] R. Sinha, "Solutions for Quadrature/Nonquadrature Branch Line Coupler With Equal/Unequal Power Division [Application Notes]," in IEEE Microwave Magazine, vol. 25, no. 4, pp. 86-95, April 2024, doi: 10.1109/MMM.2023.3329691.

Methods

https://www.youtube.com/watch?v=OoxPxoarpDU

Files

CAD_BLC.png

Files (80.0 MB)

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Additional details

Related works

Cites
Journal article: 10.1109/TMTT.2016.2532868 (DOI)
Journal article: 10.1109/TCSI.2021.3061773 (DOI)
Requires
Preprint: 10.36227/techrxiv.170629799.92034827/v1 (DOI)

Funding

Science and Engineering Research Board
Startup Research Grant SRG/2022/000156

Software

Programming language
Python, NumPy

References

  • R. Sinha and A. De, "Synthesis of Multiport Networks using Port Decomposition Technique and its Applications," IEEE Trans. Microw. Theory Techn., vol. 64, no. 4, pp. 1228 – 1244, Apr. 2016. (https://doi.org/10.1109/TMTT.2016.2532868)
  • R. Sinha, "Design of Multi-Port With Desired Reference Impedances Using Y-Matrix and Matching Networks," IEEE Trans. Circuits Syst. I, Reg. Papers, vol. 68, no. 5, pp. 2096-2106, May. 2021. (https://doi.org/10.1109/TCSI.2021.3061773)
  • Rakesh Sinha . Solutions for Quadrature/Non-Quadrature Branch Line Coupler with Equal/Unequal Power Division. TechRxiv. January 26, 2024.
  • R. Sinha, "Solutions for Quadrature/Nonquadrature Branch Line Coupler With Equal/Unequal Power Division [Application Notes]," in IEEE Microwave Magazine, vol. 25, no. 4, pp. 86-95, April 2024, doi: 10.1109/MMM.2023.3329691.