Compact LPF with pair of coupling slots for wide stopband suppression

K. Song; Y.-Z. Yin; X. Yang; J.-Y. Deng; H.-H. Xie

Compact LPF with pair of coupling slots for wide stopband suppression

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Compact LPF with pair of coupling slots for wide stopband suppression

Author(s): K. Song ; Y.-Z. Yin ; X. Yang ; J.-Y. Deng ; H.-H. Xie
DOI: 10.1049/el.2010.1113

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Author(s): K. Song ¹ ; Y.-Z. Yin ¹ ; X. Yang ¹ ; J.-Y. Deng ¹ ; H.-H. Xie ¹
- Affiliations: 1: School of Electronic Engineering, Xidian University, Xi'an, People's Republic of China
Source: Volume 46, Issue 13, 24 June 2010, p. 922 – 924
DOI: 10.1049/el.2010.1113 , Print ISSN 0013-5194, Online ISSN 1350-911X

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A compact and small lowpass filter (LPF) with a pair of coupling slots for wide stopband suppression is presented. Based on a classic dumbbell DGS cell, a pair of coupled parasitic slots has a good mutual coupling effect with it, which can be used to improve the stopband characteristic significantly. We extended the stopband to six times the cutoff frequency of 3 GHz with a smaller size, about 15×15 mm, which is superior to the conventionally cascaded dumbbell DGS-LPF in reduction of the harmonic passbands and the size. In addition, a good skirt response can be also achieved by controlling the dimensions of a pair of coupling slots.

References

1. 1)
  - H.Y. Zeng , G.M. Wang , C.X. Zhang , L. Zhu . Compact microstrip lowpass filter using complementary split ring resonators with ultra-wide stopband and high selectivity. Microw. Opt. Technol. Lett. , 430 - 433
2. 2)
  - S. Jung , Y.K. Lim , H.Y. Lee . A coupled-defected ground structure lowpass filter using inductive coupling for improved attenuation. Microw. Opt. Technol. Lett. , 1541 - 1543
3. 3)
  - L.Y. Ren , H. He . Wide stopband bandpass filter based on dual-plane microstrip-interdigital DGS slot structure. Electron Lett. , 25 , 1331 - 1332
4. 4)
  - W.L. Chen , G.M. Wang , Y.N. Qi . Fractal-shaped Hi-Lo microstrip low-pass filters with high passband performance. Microw. Opt. Technol. Lett. , 2577 - 2579
5. 5)
  - A.S. Mohra . Coupled microstrip line bandpass filter with harmonic suppession using right-angle triangle grooves. Microw. Opt. Technol. Lett. , 2313 - 2318
6. 6)
  - J.-S. Lim , C.-S. Kim , D. Ahn , Y.-C. Jeong , S. Nam . Design of low-pass filters using defected ground structure. IEEE Trans. Microw. Theory Tech. , 8 , 2539 - 2545
7. 7)
  - M.K. Mandal , P. Mondal , S. Sanyal , A. Chakrabarty . Low insertion-loss, sharp-rejection and compact microstrip low-pass filters. IEEE Microw. Wirel. Compon. Lett. , 600 - 602
8. 8)
  - J.W. No , H.Y. Hwang . A design of cascaded CPW low-pass filter with broad stopband. IEEE Microw. Wirel. Compon. Lett. , 427 - 429
9. 9)
  - H.W. Liu , T. Yoshimasu , S. Kurachi , W.L. Hu , K. Yomaoka , L.L. Sun . Compact slot resonator-based photonic bandgap for coplanar waveguide and its application to bandstop filter. Microw. Opt. Technol. Lett. , 1602 - 1606
10. 10)
  - J. Park , J.P. Kim , S. Nam . Design of a novel harmonic-suppressed microstrip low-pass filter. IEEE Microw. Wirel. Compon. Lett. , 424 - 426
11. 11)
  - C.S. Kim , J.S. Park , D. Ahn , J.B. Lim . A novel 1-D periodic defected ground structure for planar circuits. IEEE Microw. Guid. Wave Lett. , 4 , 131 - 133
12. 12)
  - N. Yang , C. Caloz , K. Wu . Lowpass filter with slow-wave rail coplanar stripline(R-CPS). Electron Lett. , 17 , 895 - 897
13. 13)
  - Q.J. He , C.J. Liu . A novel low-pass filter with an embedded band-stop structure for improved stopband characteristics. IEEE Microw. Wirel. Compon. Lett. , 629 - 631
14. 14)
  - Y. Liu , C.H. Liang , Y.J. Wang . Ultra-wideband bandpass filter using hybrid quasi-lumped elements and defected ground structure. Electron Lett. , 17 , 899 - 900

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Compact LPF with pair of coupling slots for wide stopband suppression

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