Electrical and Electronic Devices, Circuits, and Materials. Группа авторов

Figure 4.11 (a) S₁₁ of tunable hairpin bandpass filter with fractal DGS (b) magnified version of Figure

      Table 4.2 Parametric comparison of simulated work.

4.4 Conclusion

      The hairpin bandpass filter offers compactness and good return loss. The proposed work of a hairpin filter with fractal DGS shifts the resonant frequency to lower frequencies, which reduces the size of the filter. Tunability along with hexagonal fractal DGS is achieved by using variable capacitance (varactor diode) inserted in fractal DGS. The simulation work shows that the proposed filter has a compact size and much less insertion loss.

Acknowledgement

      The authors are thankful to ELARC Lab at Birla Vishwakarma MahaVidyalaya, V V Nagar, Gujarat, India, for providing the measurement facility.

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      * Corresponding author: [email protected]