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2 Przegląd Elektrotechniczny

2 2019

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New compact ship-shape antenna for the fifth generation bands

Alsaif Haitham

Przegląd Elektrotechniczny

2019

R. 95, nr 12

39--41

This research presents a new ship-shape planar monopole antenna. The design has an extreme operating frequency covering the full lower fifth generation bands varying from 2.95 GHz to more than 19.85 GHz. This bandwidth furthemore includes other bands such as the IEEE 802.11 a/b/g/n/ac. The antenna has been designed and simulated via an industrial standard simulation software called CST microwave studio. The proposed design has a reduced structure with total size of 20x24x1.6 mm. The patch is printed on a substrate of Rogers Duriod RT 5880LZ which has relative permittivity of 1.96 and loss tangent of 0.00009. The reflection coefficient (S11) and normalized radiation pattern have been simulated. The design has a bandwidth of 17 GHz over which the radiation patrern is omnidirectional pattern. The ship-shape patch is suitable for the fifth generation systems and many other wireless applications.

W artykule zaprezentowano projekt anteny przeznaczonej do pasm częstotliwości piątej generacji, to jest od 2.95 GHz do 19.85 GHz. Wymiary anteny są 20x24x1.6 mm. Właściwości anteny symulowano wykorzystując oprogramowanie CST microwave studio. Antenę naniesiono na podłoże Duriod RT 5880LZ.

Design of compact ultra-wideband monopole semi-circular patch antenna for 5G wireless communication networks

Usman Muhammad, Alsaif Haitham, Chughtai Muhammad Tajammal, Asif Sajid Mehmood

Przegląd Elektrotechniczny

2019

R. 95, nr 4

223--226

This paper presents , a novel design of semi-circular patch antenna for Ultra-wideband (UWB) wireless communication systems. The monopole is compact with structure size of 25x25 mm2 and thickness of 1.6 mm. It has been fabricated on a FR-4 substrate with relative permittivity of Ɛr=4.4. The designed antenna has an ultrawide bandwidth, from 3GHz to 11.5 GHz based on -10dB criteria, which covers the entire UWB allocated by FCC for such applications. Also, the design shows high performance in terms of impedance match between feeding line and radiator. Radiation pattern results have been studied at all resonant frequencies (3 GHz to 11.5 GHz) and they have almost omni directional pattern. The monopole has been fabricated and experimentally measured for verification and both simulation and experimental results show good agreement. The overall antenna gain is 1.8 dBi with bandwidth of 125% for UWB. Therefore, the simulated and measured results confirm that the antenna satisfies the requirements for ultra-wideband applications. Design, simulation, and optimization process have been completed using industrial simulation software called High Frequency Structural Simulator (HFSS).

W artykule opisano projekt półokrągłej anteny szerokopasmowej do systemów WiFi. Antena ma powierzchnię 25x25 mm i grubość 1.6 mm. Psamo częstotliwościowe antent jest od 3 GHz do 11.5 GHz. Symulacje I pomiary potwierdziły przydatność tej antny do pasma UWB.