Design of a Novel Compact and High-Efficiency T-Slot Microstrip Antenna for 28 GHz

Tariq Iqbal; Muhammad Irfan Khattak; Waqar Hussain; Taimur Ahmed Khan

Authors

Tariq Iqbal Department of Electrical Engineering, University of Engineering and Technology Peshawar, Pakistan
Muhammad Irfan Khattak Department of Electrical Engineering, University of Engineering and Technology Peshawar, Pakistan
Waqar Hussain Department of Electrical Engineering, University of Engineering and Technology Peshawar, Pakistan
Taimur Ahmed Khan Department of Electrical Engineering, University of Engineering and Technology Peshawar, Pakistan

Keywords:

Microstrip Patch Antenna, Radiation Efficiency, Total Antenna Efficiency, Impedance Matching, Sidelobes, Slots

Abstract

In this paper, a novel microstrip patch antenna incorporating a T-shaped slot in the radiating patch is proposed to achieve high radiation efficiency and excellent impedance matching for 28 GHz millimeter-wave 5G applications. Utilizing the Rogers RT5880 substrate with a dielectric constant of 2.2, loss tangent of 0.0009, and 0.8mm thickness, the proposed antenna achieves a radiation efficiency of 81.18%, total efficiency of 81.17%, and a peak gain of 7.23 dB over a 2 GHz impedance bandwidth (27–29 GHz). A T-shaped slot is incorporated in the radiating patch to enhance impedance matching and bandwidth. Comparative analysis across ten substrates demonstrates the superiority of Rogers RT5880 in balancing performance, cost, and compactness for mm Wave 5G applications. This innovative microstrip patch antenna design marks a significant advancement in the field, delivering enhanced performance tailored for 5G wireless communication systems.

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