A 2-60 GHz Microwave and Millimeter-Wave Planar Antenna with Simple Structure | ||
| Journal of Communication Engineering | ||
| مقاله 4، دوره 11، شماره 2 - شماره پیاپی 23، مهر 2022، صفحه 157-170 اصل مقاله (1.27 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22070/jce.2024.18283.1257 | ||
| نویسندگان | ||
| Aliakbar Dastranj* 1؛ Saman Heidari2 | ||
| 1yasouj | ||
| 2Department of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz, Iran | ||
| چکیده | ||
| This paper presents a compact planar microstrip-fed quasi-fractal antenna for 2-60 GHz microwave and millimeter-wave systems. The ultra-wideband property of the antenna is obtained by accomplished two iterations of Sierpinski circular slots on the circular radiator along with using curve-shaped ground plane. The overall antenna size is 28×28×1.6 mm3 which is printed on FR4 substrate with a dielectric constant of 4.4. The designed antenna with a simple and compact structure provides 187% (reflection coefficient less than −10dB) impedance bandwidth, which can cover S (2-4 GHz), C (4-8 GHz), X (8-12 GHz), Ku (12-18 GHz), K (18-26 GHz), Ka (26-40 GHz), and U (40-60 GHz) frequency bands. Due to small electrical dimension of the designed antenna (0.187 λ× 0.187 λ), a large bandwidth dimension ratio of 5347 is resulted. The numerical outcomes are verified by experimental measurements. Measured data are in good agreement with the simulated results. The frequency- and time-domain characteristics of the antenna including impedance matching, far-field patterns, gain, and group delay are presented and discussed. Results show that the antenna is an excellent radiating component for use in several military and industrial systems. | ||
| کلیدواژهها | ||
| Compact size؛ equivalent circuit model؛ microstrip-fed؛ microwave؛ millimeter wave؛ Sierpinski circular slots | ||
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