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Related Experiment Video

Updated: Jul 2, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
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Optimizing Dielectric Rod Antenna Performance with Spoof Surface Plasmon Polariton-Based Feeding Method.

Rishitej Chaparala1, Shaik Imamvali1, Sreenivasulu Tupakula1

  • 1Department of Electronics and Communication Engineering, SRM University-AP, Guntur 522240, India.

Sensors (Basel, Switzerland)
|December 17, 2024
PubMed
Summary

This study introduces spoof surface plasmon polaritons (SSPPs) as an antenna feeding method for extremely high-frequency (EHF) applications. The novel FR-4 dielectric rod antenna design achieves high gain and good impedance matching using cost-effective materials.

Keywords:
dielectric rod antennafeeding elementimpedance matchingmetamaterialplasmonspoof surface plasmon polaritons (SSPPs)

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Area of Science:

  • Electromagnetics and Wave Propagation
  • Antenna Theory and Design
  • Materials Science for RF Applications

Background:

  • Traditional antenna feeding mechanisms face limitations in the extremely high-frequency (EHF) range.
  • Spoof surface plasmon polaritons (SSPPs) offer a potential solution for efficient wave propagation and antenna feeding.
  • Dielectric rod antennas are widely used but require optimized feeding for high-frequency performance.

Purpose of the Study:

  • To investigate SSPPs as an effective feeding mechanism for antennas in the EHF range.
  • To propose and analyze a novel, simple dielectric rod antenna fed by SSPPs using FR-4 material.
  • To evaluate the antenna's gain, impedance matching, and radiation characteristics at EHF.

Main Methods:

  • A novel antenna feeding configuration utilizing SSPPs was designed and simulated.
  • The antenna was constructed using FR-4 material with a relative permittivity of 4.3.
  • CST Microwave Studio was employed for electromagnetic simulations to validate performance.

Main Results:

  • The proposed antenna design achieved a significant gain of up to 16.85 dBi.
  • Optimal impedance matching and directional radiation characteristics were obtained at 7.3 GHz.
  • The design demonstrated improved impedance bandwidth and utilized cost-effective FR-4 material.

Conclusions:

  • SSPPs provide a promising feeding mechanism for EHF antennas, offering high gain and efficiency.
  • The novel FR-4 dielectric rod antenna design is suitable for future wireless communication technologies.
  • The feeder's remote sensing capabilities open avenues for applications like concealed object detection and material analysis.