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Progress In Electromagnetics Research Letters
ISSN: 1937-6480
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A COMPACT DUAL-METAL-PLANE HIGHPASS FILTER USING HYBRID MICROSTRIP/DGS

By H. Chen, K.-S. Chen, D. Jiang, and H.-F. Zhao

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Abstract:
A novel and compact highpass filter (HPF) is proposed in this article. This filter is based on a hybrid-coupled dual-metal-plane microstrip/DGS (defected ground structure) on a single-layer substrate. The resonator etched in the grounding plane shows a wide-band dual-mode resonant response within the desired high-pass frequency band, and is composed of a modified U-shaped slot resonator embedded with an L-shaped slot. The wideband highpass filtering performance is achieved by the dual-mode resonator at the bottom of single-layer substrate coupled broadside to the top microstrip stubs. Simulated results from the electromagnetic (EM) analysis software and measured results from a vector network analyzer (VNA) show a good agreement, and an excellent performance with nearly 40 dB attenuation at the lower stopband has also been obtained across an ultra-wide highpass range. A designed and fabricated prototype filter, having a 3-dB cutoff frequency (fc) of 5.9 GHz, shows an ultra-wide highpass range, i.e., from 5.9 to 15.52 GHz, and exhibits the highest pass-band frequency up to 2.6fc. The printed circuit board (PCB) area of the implemented filter is approximately 0.086λg×0.13λg, λg being the guided wavelength at fc.

Citation:
H. Chen, K.-S. Chen, D. Jiang, and H.-F. Zhao, "A Compact Dual-Metal-Plane Highpass Filter Using Hybrid Microstrip/DGS," Progress In Electromagnetics Research Letters, Vol. 60, 53-58, 2016.
doi:10.2528/PIERL16040601

References:
1. Hong, J. S. and M. J. Lancaster, Microstrip Filters for RF/Microwave Applications, Wiley, New York, 2001.
doi:10.1002/0471221619

2. Shoaib, N., I. Shoaib, and S. Shoaib, "A novel approach to transform an open circuit series stub to a short circuit shunt stub for the implementation of high-pass butterworth filter," Microwave Opt. Technol. Lett., Vol. 55, 497-501, 2013.
doi:10.1002/mop.27354

3. Duran-Sindreu, M., J. Bonache, and F. Martın, "Elliptic high-pass filters with stepped impedance resonators in coplanar waveguide technology," Microwave Opt. Technol. Lett., Vol. 54, 1094-1097, 2012.
doi:10.1002/mop.26692

4. Misan, S., R. Haviv, D. Ackerman, H. Matzner, and M. Haridim, "A high-pass filter based on modified double-sided parallel-strip lines," Microwave Opt. Technol. Lett., Vol. 51, 2691-2694, 2009.
doi:10.1002/mop.24741

5. Chramiec, J., M. Kitlinski, and J.-J. Bogdan, "Microstrip line with short-circuited edge as a high-pass filter operating up to millimeter-wave frequencies," Microwave Opt. Technol. Lett., Vol. 49, 2178-2180, 2007.
doi:10.1002/mop.22705

6. Li, C., K.-Y. Liu, and F. Li, "Design of microstrip highpass filters with complementary split ring resonators," Electron. Lett., Vol. 43, 35-36, 2007.
doi:10.1049/el:20072945

7. Mondal, P. and A. Chakrabarty, "Compact highpass filter using complementary split ring resonator," Microwave Opt. Technol. Lett., Vol. 49, 2470-2472, 2007.
doi:10.1002/mop.22763

8. Liu, J.-C., D.-S. Shu, B.-H. Zeng, and D.-C. Chang, "Improved equivalent circuits for complementary split-ring resonator-based high-pass filter with C-shaped couplings," IET Microw. Antennas Propag., Vol. 2, 622-626, 2008.
doi:10.1049/iet-map:20070306

9. Selga, J., G. Siso, M. Gil, J. Bonache, and F. Martın, "Microwave circuit miniaturization with complementary spiral resonators-Application to high-pass filters and dual-band components," Microwave Opt. Technol. Lett., Vol. 51, 2741-2745, 2009.
doi:10.1002/mop.24715

10. Selga, J., M. Gil, F. Aznar, J. Bonache, and F. Martın, "Composite right-left-handed coplanar waveguides loaded with split ring resonators and their application to high-pass filters," IET Microw. Antennas Propag., Vol. 4, No. 7, 822-827, Jul. 2010.
doi:10.1049/iet-map.2009.0297

11. Baik, J.-W., L. Zhu, and Y.-S. Kim, "Dual-mode dual-band bandpass filter using balun structure for single substrate configuration," IEEE Microw. Wireless Compon. Lett., Vol. 20, 613-615, 2010.
doi:10.1109/LMWC.2010.2060184

12. Luo, S. and L. Zhu, "A novel dual-mode dual-band bandpass filter based on a single ring resonator," IEEE Microw. Wireless Compon. Lett., Vol. 19, 497-499, 2009.

13. Chiou, Y.-C., C.-Y. Wu, and J.-T. Kuo, "New miniaturized dual-mode dual-band ring resonator bandpass filter with microwave C-sections," IEEE Microw. Wireless Compon. Lett., Vol. 20, 67-69, 2010.
doi:10.1109/LMWC.2009.2038432


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