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October 8, 2025The Applied Computational Electromagnetics Society Journal (ACES)

Compact Single and Dual-Band Branch-Line Coupler with Effective Fractional Bandwidth for Wireless Communication Systems

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Authors

GSG. SrividhyaSMS. Maheswari

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Overview

This design demonstrates a single-band and dual-band branch-line coupler, achieving 44% fractional bandwidth in wireless applications.

Key Points

  • The proposed coupler operates effectively at frequencies of 0.9 GHz and 2.4 GHz, catering to GSM and wireless standards.
  • Utilizing stub loaded transmission lines, the design supports dual-band functionality critical for modern communication systems.
  • The innovative Elongated T-Shape Transmission Line approach contributes to the compact size of the couplers, facilitating easier fabrication.
  • The fractional bandwidth of 44% enhances performance for both single-band and dual-band applications in wireless communication.

Cite This Study

Srividhya et al. (2025) studied this question.

synapsesocial.com/papers/68e5c1c36950a706b22b5ce8https://doi.org/10.13052/2024.aces.j.400607
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