Vol. 99

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Design of a Reconfigurable Band-Notch SWB Antenna

By Jiahao Sun, Hua Jing, Hongcheng Zhou, Yu Wang, Ping Wang, and Yifei Qin
Progress In Electromagnetics Research Letters, Vol. 99, 1-9, 2021


This paper introduces a novel planar super-wideband (SWB) antenna with reconfigurable band-notch characteristic. The antenna can work in band-notch mode or band-notch free mode. A good impedance matching is responsible for the SWB characteristic of the proposed antenna by adopting a gradient ground, a gradient feeder line, and a gradient radiating patch. Furthermore, to achieve a reconfigurable notched band function, a 0.3 mm deep slot which is 16 mm in length and 8 mm in width is dug near the antenna feeder for the placement of dielectric plates etched with different sizes of split ring resonator (SRR). The designed antenna has a size of 200 mm × 109 mm × 0.79 mm, and the measured frequency band of bandwidth covers 0.8-26 GHz with a reconfigurable band-rejection characteristic. The dielectric plates with different SRRs reject the part of WLAN band (5.44-5.55 GHz), X-band satellite downlink band (7.65 GHz-7.82 GHz), and 6.33 GHz-6.59 GHz. A good agreement is achieved within the super-wideband frequency range between simulated and measured results.


Jiahao Sun, Hua Jing, Hongcheng Zhou, Yu Wang, Ping Wang, and Yifei Qin, "Design of a Reconfigurable Band-Notch SWB Antenna," Progress In Electromagnetics Research Letters, Vol. 99, 1-9, 2021.


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