An on-chip circular Sierpinski shaped fractal antenna with defected ground structure for Ku-band applications

In this paper, a circular Sierpinski shaped on-chip fractal antenna with defected ground structure (DGS) is presented for Ku-band applications. The fractal and defected ground structure are employed to achieve higher bandwidth for the entire Ku-band (12–18 GHz). The proposed on-chip antenna (OCA) wi...

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Bibliographic Details
Published inFrequenz Vol. 75; no. 11; pp. 525 - 532
Main Authors Singh, Harshavardhan, Azhar, Sameen, Mandal, Sanjukta, Mandal, Sujit Kumar, Naidu, Pamidiparthi Ravi Teja
Format Journal Article
LanguageEnglish
Published Berlin De Gruyter 20.12.2021
Walter de Gruyter GmbH
Subjects
antenna miniaturization
Antennas
Bandwidths
defected ground structure
fractal antenna
Fractals
gain enhancement
Ku-band
on-chip antenna
Polarization
Superhigh frequencies
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Summary:In this paper, a circular Sierpinski shaped on-chip fractal antenna with defected ground structure (DGS) is presented for Ku-band applications. The fractal and defected ground structure are employed to achieve higher bandwidth for the entire Ku-band (12–18 GHz). The proposed on-chip antenna (OCA) with a footprint area of 4  mm offers wide bandwidth of 7.22 GHz (11.94–19.13 GHz) with the resonating frequency of 15 GHz. At the resonating frequency, the designed antenna shows a peak gain of −19.76 dBi and a radiation efficiency of 55.6%. The co-polarization (CP) and cross-polarization (× ) characteristics of the proposed OCA shows good isolation of 18.05 dBi and 17.44 dBi in the two principal planes with  = 0° and 90° cuts respectively. The measured result of the designed OCA prototype shows a good performance over the desired frequency band.
ISSN:0016-1136
2191-6349
DOI:10.1515/freq-2021-0045