Asymmetrical-Slot Antenna with Enhanced Gain for Dual-Band Applications - Publication - Bridge of Knowledge


Asymmetrical-Slot Antenna with Enhanced Gain for Dual-Band Applications


Dual-band operation is an important feature of antennas to be applied in modern communication systems. Although high gain of radiators is rarely of concern in urban areas with densely located broadcasting stations, it becomes crucial for systems operating in more remote environments. In this work, a dual-band antenna with enhanced bandwidth is proposed. The structure consists of a driven element in the form of an asymmetrical radiator/slot pair suspended over the ground plane. The antenna operates within 2.4 GHz to 3.2 GHz and 4.9 GHz to 6.4 GHz bands with the average gain of 9.7 dBi and 10.4 dBi, respectively. High performance of the structure is achieved through a rigorous two-stage numerical optimization. The antenna lower band covers the industrial, scientific and medical (ISM) radio band which is widely utilized by WiFi, Bluetooth and other systems. The upper band covers all four ranges of the unlicensed national information infrastructure (U-NII) spectrum, applications of which include WiFi 5 GHz, or amateur radio. The proposed structure is compared with other dual-band structures with enhanced gain in terms of size and performance. The effect of the separation between the radiator and ground-plane on the antenna performance is also investigated.

Cite as

Full text

download paper
downloaded 16 times
Publication version
Accepted or Published Version
Copyright (2019, IEEE)



Conference activity
publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Publication year:
Bibliographic description:
Bekasiewicz A., Kozieł S.: Asymmetrical-Slot Antenna with Enhanced Gain for Dual-Band Applications// / : , 2019,
Verified by:
Gdańsk University of Technology

seen 26 times

Recommended for you

Meta Tags