2024 : 4 : 13
Hossein Malekpour Shahraki

Hossein Malekpour Shahraki

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0002-2788-1624
Education: PhD.
ScopusId: 55509638100
Faculty: Engineering
Address: Arak University


Bandwidth and gain improvement for reduced size of stacked microstrip antenna fed by folded triangular patch with half V-shaped slot
microstrip antenna, stacked patch, UWB, half V-shaped slot, wideband
Journal International Journal of RF and Microwave Computer-Aided Engineering
Researchers Hossein Malekpour Shahraki ، mehdi hamidkhani


This study presents a new stacked design of reduced size broadband microstrip patch antenna for ultra-wideband (UWB) operation. A folded triangular patch's feeding technique, half V-shaped slot and shorting pins are employed to design the proposed stacked antenna. Shorting pins are applied at the edge of structure to miniaturize the size of the patch. The proposed design with the half V-shaped slot and without stacked patch provides the measured impedance bandwidth (S11<−10 dB) of 115.7% (4.35-16.3 GHz) for broadband application. In the proposed design with the half V-shaped slot, the wide bandwidth with an acceptable size reduction is achieved. By adding a stacked element on the upper patch, the impedance bandwidth of the proposed antenna is improved from 3.47 to 17.35 GHz. The stacked design includes a measured impedance bandwidth of 133.3% with reduced sizes of more than 78% compared to the corresponding full design and an enhanced maximum gain of 6.2 dBi. The obtained radiation and impedance results show that the proposed design is applicable for wideband operation. Besides, the effects of some basic concepts and surface currents on the suggested structure are investigated to explain their broadband performance.