Oudaya Coumar, S.
Ultra-miniaturized DGS-based meander line multi-band filters with/without resonators for satellite band applications - Vol.103(1), Feb - New York Springer 2022 - 213-223p.
An ultra-miniaturized meander line inspired dual-band filters with and without open stub loaded rectangular resonator defected on the ground plane are presented. The dual-band characteristic is obtained from half wavelength rectangular resonator which eliminating certain frequency bands forming dual-band operation. The transmission zero in the pass band is determined by modifying the dimensions of the resonator. The miniaturized meander line DGS-based filter is analyzed with and without rectangular resonator. The rectangular resonator incorporated with meander line coupling acts a crucial part in dual-band filters (DBFs). The miniaturization of DGS-based meander line inspired filters can be realised by varying the overall substrate size for (20 × 20) mm, (10 × 10) mm and (5 × 5) mm. The proposed DBF with rectangular resonator produces tremendous bandwidth ranges from 1.2 to 6.8 GHz (Band I) and 7.2–12.4 GHz (Band II) whose bandwidths are 5.6 GHz and 5.2 GHz, respectively. The filter characteristics show the filter’s return loss (S11) of − 29.55 dB and insertion loss (S21) of − 2.45 dB. The proposed DBF without rectangular resonator produces tremendous bandwidth ranges from 1.2 to 8.2 GHz (Band III) and 9–13.8 GHz (Band IV) whose bandwidths are 7 GHz and 4.8 GHz, respectively. The filter characteristics show the filter’s return loss (S11) of − 32.2 dB and insertion loss (S21) of − 1.35 dB. The performances of both filters are evaluated and analysed through S-parameters. Also, the measured results of both the filters obey the simulated results. The proposed filter is confined with the size of (10 × 10 × 1.6) mm3 or (0.15) λ2g which is nearly 200% less when compared with other existing design.
Humanities and Applied Sciences
Ultra-miniaturized DGS-based meander line multi-band filters with/without resonators for satellite band applications - Vol.103(1), Feb - New York Springer 2022 - 213-223p.
An ultra-miniaturized meander line inspired dual-band filters with and without open stub loaded rectangular resonator defected on the ground plane are presented. The dual-band characteristic is obtained from half wavelength rectangular resonator which eliminating certain frequency bands forming dual-band operation. The transmission zero in the pass band is determined by modifying the dimensions of the resonator. The miniaturized meander line DGS-based filter is analyzed with and without rectangular resonator. The rectangular resonator incorporated with meander line coupling acts a crucial part in dual-band filters (DBFs). The miniaturization of DGS-based meander line inspired filters can be realised by varying the overall substrate size for (20 × 20) mm, (10 × 10) mm and (5 × 5) mm. The proposed DBF with rectangular resonator produces tremendous bandwidth ranges from 1.2 to 6.8 GHz (Band I) and 7.2–12.4 GHz (Band II) whose bandwidths are 5.6 GHz and 5.2 GHz, respectively. The filter characteristics show the filter’s return loss (S11) of − 29.55 dB and insertion loss (S21) of − 2.45 dB. The proposed DBF without rectangular resonator produces tremendous bandwidth ranges from 1.2 to 8.2 GHz (Band III) and 9–13.8 GHz (Band IV) whose bandwidths are 7 GHz and 4.8 GHz, respectively. The filter characteristics show the filter’s return loss (S11) of − 32.2 dB and insertion loss (S21) of − 1.35 dB. The performances of both filters are evaluated and analysed through S-parameters. Also, the measured results of both the filters obey the simulated results. The proposed filter is confined with the size of (10 × 10 × 1.6) mm3 or (0.15) λ2g which is nearly 200% less when compared with other existing design.
Humanities and Applied Sciences