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Related Concept Videos

Maximum Power Transfer01:16

Maximum Power Transfer

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Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
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Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
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Compact and high isolated microstrip patch antenna system for full-duplex/MIMO applications.

Phuong Kim-Thi1, Tuyen Pham-Danh2

  • 1Faculty of Electrical and Electronic Engineering, Thuyloi University, Hanoi, Viet Nam.

Heliyon
|October 22, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces a compact two-port microstrip patch antenna system designed for full-duplex and MIMO applications. It achieves high isolation and a small footprint using a novel decoupling network, making it ideal for advanced wireless communication systems.

Keywords:
CompactFull duplexHigh isolationMIMOPatch

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Area of Science:

  • Electrical Engineering
  • Antenna Theory
  • Wireless Communication

Background:

  • Full-duplex and MIMO systems require compact antennas with high isolation.
  • Existing antenna designs often struggle to balance size, isolation, and performance.
  • Miniaturization and effective decoupling are critical challenges in modern antenna engineering.

Purpose of the Study:

  • To propose a novel two-port microstrip patch antenna system.
  • To achieve a compact size and high isolation for full-duplex and MIMO applications.
  • To demonstrate a miniaturization approach using a defected ground structure decoupling network.

Main Methods:

  • Utilizing two quarter-wavelength patch antennas in an H-plane coupled configuration.
  • Employing a defected ground structure (DGS) as a space-saving decoupling network.
  • Arranging antenna elements with a minimal spacing of 0.008 λ at the center frequency.

Main Results:

  • Achieved a compact antenna size of 0.49 λ × 0.37 λ × 0.01 λ.
  • Operates in the 2.45–2.48 GHz band with isolation exceeding 30 dB (max 42 dB).
  • Obtained a gain of 3.8 dBi and demonstrated good diversity performance.

Conclusions:

  • The proposed antenna design offers the smallest overall size with minimal element spacing among comparable works.
  • The DGS decoupling network effectively reduces dimensions without compromising isolation.
  • The antenna system is well-suited for space-constrained full-duplex and MIMO wireless applications.