High gain miniaturrized super‐wideband microstrip patch antenna

Abstract

A miniaturized super-wideband (SWB) monopole antenna is presented in this work. Electrical dimension of the presented antenna is 0.239λ  0.239λ  0.0147λ, where λ indicates the wavelength corresponding to the lowest operating frequency. Presented antenna displays single À10 dB operating band from 2.75 to 28 GHz with 164% percentage bandwidth and bandwidth ratio of more than 10:1. The proposed SWB antenna exhibits a large bandwidth dimension ratio (BDR) of 2871 with realized gain of 4.80 dBi. Radiating patch of the proposed antenna is designed by modifying conventional rectangular patch by loading a matching stepwise structure. Further, in order to achieve SWB characteristics, the ground plane is reduced with a loaded rectangular notch for better impedance matching. The designed antenna has the advantages of simple planar miniaturized structure, acceptable gain, and wide bandwidth to support various objectives in modern wireless communication. To boost the maximum gain further over the entire frequency band, the proposed antenna is combined with the proposed frequency selective surface (FSS) which acts as a partially reflector surface. The antenna is placed over 4  4 FSS at suitable distance without hampering the obtained bandwidth of the antenna. FSS combined antenna structure, having the physical volume of 56 mm  56 mm  26.2 mm, exhibits realized gain of 9.3 dBi which is suitable for long range communication. CST MWS (Microwave studio) for simulation results of the suggested antenna and appropriate Microwave Test bench is used to verify the same.

Filtenna with Frequency Reconfigurable Operation for Cognitive Radio and Wireless Applications

“…To widen the operating bandwidth of microstrip antennae, many efforts have been exerted by the publishers taking into consideration the size miniaturization, complexity minimization, and cost reduction. Different techniques have been addressed to meet the desired requirements and some of these techniques are partial ground plane [ 6 , 7 , 8 ], electromagnetic band gap (EBG) ground structure [ 9 ], loaded rectangular and annular notches in the ground plane [ 10 , 11 , 12 ], radiator ring slot and shorting vias [ 13 ], parasitic elements [ 14 ], and electrostrictive effect [ 15 ].…”

Electromagnetic band gap coupled tri‐notched miniaturized ultra‐wideband antenna loaded with slot and parasitic strip

“…[1][2][3] Furthermore, the need for wide bandwidth in the ultrawideband (UWB) range and improved gain will keep increasing as we integrate various high frequency applications with high data rates into a single device. 4,5 An antenna is an indispensable part of wireless communications devices. Designing an antenna for future wireless devices is challenging for researchers.…”

“…Modern wireless communications are growing at a rapid pace where the devices used in communication systems a few years back were required to be very compact and suitable for multiband operations, but nowadays the demand for bandwidth enhancement is in the field of prime interest 1–3 . Furthermore, the need for wide bandwidth in the ultra‐wideband (UWB) range and improved gain will keep increasing as we integrate various high frequency applications with high data rates into a single device 4,5 . An antenna is an indispensable part of wireless communications devices.…”

Sustainable dual-band microstrip patch antenna with paper-based substrate and aluminum for multipoint distribution systems and WiMAX application

“…[9]. Ample research has been reported for different microstrip patch antenna geometries in a number of studies [10][11][12][13][14][15][16][17][18][19][20] In this article, a microstrip patch antenna with a U-shaped patch and a paper-based substrate is designed. Aluminum is utilized for the metallic parts including the patch, ground plane and microstrip line, which is used for feeding.…”