Design of a Compact Wilkinson Power Divider using Four Asymmetric DGS for Harmonic Suppression

Khare, Ajay; Kharat, Santosh Abaji; Rajapkar, Akshay; Rathod, S. M.; Kulkarni, Makarand

doi:10.1109/imicpw.2019.8933177

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…From literatures, defected ground structure (DGS) is used in RF and microwave circuit designs such as antennas [20], [21], filters [22], [23], power amplifiers [24] and power dividers [25]. The use of the DGS in these circuits has different purposes, such as harmonics or frequency suppression [20], [22], [23], [25], wideband performance [21], circuit miniaturization [22], [23], [25] and load matching network [24]. Therefore, in this paper, a DGS is proposed for the reconfigurable bandstop to allpass filter for mm-wave communications such as 5G technology in the 26 or 28 GHz band (K-band).…”

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Reconfigurable bandstop to allpass filter using defected ground structure in K-band for millimeter-wave communications

Othman

Shairi

Majid

et al. 2022

IJEECS

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In this paper, a reconfigurable bandstop to allpass filters using Defected Ground Structure (DGS) in K-Band for millimeter-wave communications is proposed. Mathematical analysis of the DGS is discussed in this paper for the bandstop and allpass responses. The reconfigurable filter is performed by using an ideal switch with open circuit and short circuit conditions on DGS at several locations. Hence, two filter designs with different DGS are investigated for their performance in both simulation and measurement. As a result, the ideal switch at location S3 gives the best performance for both DGSs with a narrowband bandstop response and a wideband allpass response with insertion loss of less than 1 dB and return loss of more than 10 dB at the 26 GHz band. Hence, the proposed reconfigurable filter is suitable for millimeter-wave front-end communications.

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