Super-Wide Impedance Bandwidth Planar Antenna Based on Metamaterial Concept for Microwave and Millimetre-Wave Applications

Alibakhshikenari, Mohammad, Virdee, Bal Singh, See, Chan, Abd-Alhameed, Raed, Falcone, Francisco and Limiti, Ernesto (2019) Super-Wide Impedance Bandwidth Planar Antenna Based on Metamaterial Concept for Microwave and Millimetre-Wave Applications. Communication. pp. 1-4.

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Abstract / Description

A novel configuration for a super-wide impedance planar antenna is presented based on a 2×2 microstrip patch antenna (MPA). The antenna comprises a symmetrical arrangement of four-square patches that are interconnected to each other with cross-shaped high impedance microstrip lines. The antenna array is exciting through a single feedline connected to one of the patches. The proposed antenna array configuration overcomes the main drawback of conventional MPA of narrow bandwidth that is typically < 5%. The antenna exhibits a super-wide frequency bandwidth from 20 GHz to 120 GHz for S11<-15dB, which corresponds to a fractional bandwidth of 142.85%. The antenna’s performance of bandwidth, impedance match, and radiation gain were enhanced by etching slots on the patches. The slotted microstrip patch essentially acts like a left-handed capacitance to exhibit metamaterial properties over a given frequency range. With the inclusion of the slot the maximum radiation gain and efficiency of the MPA have increased to 15.11 dBi and 85.79% at 80 GHz, which show an improvement of 2.58 dBi and 12.54%, respectively. The dimension of each patch antenna is 30×30 mm2. The results show that the proposed MPA is useful for various communications existing and emerging systems such as ultra-wideband (UWB) communications, RFID systems, massive multiple-output multiple-input (MIMO) for 5G, and radar systems.

Item Type:	Article
Uncontrolled Keywords:	array antenna Microstrip Patch Antenna (MPA); slot antenna; metamaterial; Multiple-Output Multiple-Input (MIMO); radar; RFID systems; millimetre-wave band
Subjects:	600 Technology > 620 Engineering & allied operations
Department:	School of Computing and Digital Media
Depositing User:	Bal Virdee
Date Deposited:	30 Apr 2019 09:43
Last Modified:	01 Aug 2019 09:31
URI:	https://repository.londonmet.ac.uk/id/eprint/4777

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