Offset fed slot antenna for broadband operation

3rd International Conference on Communication Systems

无线电电子学

Ritish, K.^1 ; Piyush, S.^1 ; Praveen Kumar, A.V.^1

Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science, Rajasthan, Pilani, India^1

关键词: Broadband operation;    Impedance bandwidths;    Prototype measurements;    Radiation characteristics;    Rectangular slot antennas;    Simulated radiation;    Wideband behavior;    Wideband characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/331/1/012022/pdf
DOI  :  10.1088/1757-899X/331/1/012022

来源: IOP

【 摘 要 】

In this paper, a microstrip fed rectangular slot antenna with wideband characteristics is proposed. Both the impedance and radiation characteristics of the proposed antenna are presented. It is shown that a properly offset feed can give a dual resonance nature, which can be optimized to enable wideband behavior. From HFSS simulation, an impedance bandwidth (-10 dB) of 49.92 % (2.51 GHz to 4.18 GHz) about the center frequency of the band is obtained. Prototype measurement demonstrates a bandwidth of 45.30 % (2.51 GHz to 3.98 GHz). Simulated radiation patterns show bidirectional behavior, which is stable in the band with a peak gain of 5.7 dBi and a gain variation of 2 dBi.