Research Output
A Survey of Differential-Fed Microstrip Bandpass Filters: Recent Techniques and Challenges
  Differentially driven devices represent a highly promising research field for radio frequency (RF), microwave (MW), and millimeter-wave (mmWave) designers and engineers. Designs employing differential signals are essential elements in low-noise fourth-generation (4G) and fifth-generation (5G) communications. Apart from the conventional planar MW components, differential–fed balanced microstrip filters, as promising alternatives, have several advantages, including high common-mode rejection, low unwanted radiation levels, high noise immunity, and wideband harmonic suppression. In this paper, a comprehensive and in-depth review of the existing research on differential-fed microstrip filter designs are presented and discussed with a focus on recent advances in this research and the challenges facing the researchers. A comparison between different design techniques is presented and discussed in detail to provide the researchers with the advantages and disadvantages of each technique that could be of interest to a specific application. Challenges and future developments of balanced microstrip bandpass filters (BPFs) are also presented in this paper. Balanced filters surveyed include recent single-, dual-, tri-, and wide-band BPFs, which employ different design techniques and accomplish different performances for current and future wireless applications.

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  • Date:

    21 April 2020

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  • Funders:

    Horizon 2020


Al-Yasir, Y. I. A., Ojaroudi Parchin, N., Abdulkhaleq, A. M., Bakr, M. S., & Abd-Alhameed, R. A. (2020). A Survey of Differential-Fed Microstrip Bandpass Filters: Recent Techniques and Challenges. Sensors, 20(8), Article 2356.



differential-fed filter; microstrip; RF; MW; 4G; 5G; bandpass

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