2024 : 4 : 12
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


Study of Compact Wideband Patch Arrays Fed by CPW-to-Slotline Using Electromagnetic Band Gap
Coplanar Waveguide (CPW), Electromagnetic Band Gap (EBG); Conventional Mushroom-Type EBG (CMTEBG); Edge-Shorted Mushroom-Type EBG (ESM-EBG); Microstrip Arrays; multi-band
Researchers Hossein Malekpour Shahraki


Novel designs of miniaturized patch antenna arrays with electromagnetic band gap (EBG) for wideband operation are presented in this paper. For this purpose, three unequal arms are fed by CPW-to-slotline with the T-shaped slotline transitions in order to widen the impedance bandwidth with three resonances. By adding two conventional mushroom-type EBG (CMT-EBG) structures on both sides of 100 Ω slotline transitions, a compact dual-band patch array is achieved. The proposed 1×2 patch array with CMT-EBG covers two bands with the measured ranges (S11≤-10 dB) of 6.65-6.95 GHz and 8.57- 11.53 GHz. Moreover, by applying an edge-shorted mushroomtype EBG (ESM-EBG) into the proposed array, a more size reduction is attained. Compared to the proposed array without EBG, the design with the ESM-EBG indicates more than 36% size reduction. Measurement results show that the proposed designs have good unidirectional radiation patterns and antenna gain (until 7 dBi) over the operating bands.