Design of Dielectric Resonator Band Stop/Band Pass Filters

Authors

  • Noha A. Al-Shalaby Electronic and Communication Department, Faculty of Engineering, Kafer El-shiekh University, Egypt
  • Shaymaa M. Gaber Electronic and Communication Department, Faculty of Engineering, Egyptian Russian University, Egypt

Keywords:

DGS, DRA, DRAF, DRF, FEM

Abstract

A square dielectric resonator element (SDR) with a defected ground structure (DGS) is investigated. The proposed DGS is composed of two rectangular slots connected by two transverse slots and is placed in the ground plane. It is fed by a strip line through the substrate layer. The objective of this structure is to design dielectric resonator band-stop filter (DRF) and enhance the performance in terms of better insertion loss and increased bandwidth. The DRF has been fabricated and some measurements are taken. The cutoff frequency of the band- stop filter is 2.25 GHz, with transmission loss of 2-dB. The 3-dB of the band-stop filter is 1.24 GHz. The effect of the transverse slot width on the filter response curve is studied. The same structure is modulated to be frequency reconfigurable DRF to achieve frequency agility by using ideal metallic switches. The cut-off frequency is moved to 1GHz, and the 3-dB bandwidth in 1.5 GHz, while the transmission loss is decreased by 0.75 dB. Finally, the effect of loading SDR with metal plate is investigated. This structure combines the dielectric resonator antenna (DRA) and the DRF to propose dielectric resonator antenna filter (DRAF), this structure is used to miniaturize the global-positioning-system receivers that contain both the antenna and filter. The DRAF has been fabricated and measured, it has 3-dB pass bandwidth in 1GHz. Factors such as return loss, insertion loss, radiation pattern and mutual coupling of DRAF are calculated using finite element method (FEM). Comparison of calculation and measurement factors of DRAF shows a good agreement.

References

X. Chen, F. Zhao, L. Yan, and W. Zhang, “A compact filtering antenna with flat gain response within the passband,” IEEE Antennas Wirel. Propag. Lett., vol. 12, pp. 857-860, 2013.

S. P. Wang, P. S. Hall, and P. Gardner, “Yagi antenna with frequency domain filtering performance,” Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE, 2012.

C. T. Chuang and S. J. Chung, “New printed filtering antenna with selectivity enhancement,” Microwave Conference, 2009, EuMC, European IEEE, 2009.

S. Oda, et al., “Electrically small superconducting antennas with bandpass filters,” IEEE Transactions on Applied Superconductivity 17.2, 878-881, 2007.

F. Queudet, et al., “Integration of pass-band filters in patch antennas,” Microwave Conference, 2002, 32nd European IEEE, 2002.

A. I. Abunjaileh, I. C. Hunter, and A. H. Kemp, “A circuit-theoretic approach to the design of quadruple-mode broadband microstrip patch antennas,” IEEE Transactions on Microwave Theory and Techniques 56.4, 896-900, 2008.

C. K. Lin and S. J. Chung, “A filtering microstrip antenna array,” IEEE Transactions on Microwave Theory and Techniques 59.11, 2856-2863, 2011.

W. J. Wu, et al., “A new compact filter-antenna for modern wireless communication systems,” IEEE Antennas and Wireless Propagation Letters 10, 1131-1134, 2011.

E. H. Lim and K. W. Leung, “Use of the dielectric resonator antenna as a filter element,” IEEE Transactions on Antennas and Propagation 56.1, 5-10, 2008.

G. Breed, "An introduction to defected ground structures in microstrip circuits," High Frequency Electronics, 50-54, 2008.

K. Annam, “Design of bandstop filters using defected ground structures,” Diss. University of Dayton, 2015.

D. Ahn, et al. “A design of the low-pass filter using the novel microstrip defected ground structure,” IEEE Transactions on Microwave Theory and Techniques 49.1, 86-93, 2001.

A. B. Abdel-Rahman, et al., “Control of bandstop response of Hi-Lo microstrip low-pass filter using slot in ground plane,” IEEE Transactions on Microwave Theory and Techniques 52.3, 1008- 1013, 2004.

M. K. Mandal and S. Sanyal, “A novel defected ground structure for planar circuits,” IEEE Microwave and Wireless Components Letters 16.2, 93- 95, 2006.

J. S. Lim, et al., “A spiral-shaped defected ground structure for coplanar waveguide,” IEEE Microwave and Wireless Components Letters 12.9, 330-322, 2002.

D. J. Woo, et al., “Novel U-slot and V-slot DGSs for bandstop filter with improved Q factor,” IEEE Transactions on Microwave Theory and Techniques54.6, 2840-2847, 2006.

A. Petosa, Dielectric Resonator Antenna Handbook, Artech House. Inc., Norwood, USA, (2007).

K. W. Leung, et al., “Bandwidth enhancement of dielectric resonator antenna by loading a lowprofile dielectric disk of very high permittivity,” Electronics Letters 33.9, 725-726, 1997.

A. A. Kishk and K. F. Lee, “Wideband simple cylindrical dielectric resonator antennas,” IEEE Microwave and Wireless Components Letters 15.4, 241-243, 2005.

Y. Hwang, et al., “Gain-enhanced miniaturised rectangular dielectric resonator antenna,” Electronics Letters 33.5, 350-352, 1997.

K. P. Esselle, “A low-profile rectangular dielectricresonator antenna,” IEEE Transactions on Antennas and Propagation 44.9, 1296-1297, 1996.

R. Mahmood and M. T. Beg, “Dual band dielectric resonator filter (DBDRF) with defected ground structure (DGS),” World Applied Sciences Journal 32 (4), pp. 582-586, 2014.

G. D. Makwana and K. J. Vinoy, “Design of a compact rectangular dielectric resonator antenna at 2.4 GHz,” Progress In Electromagnetics Research C, vol. 11, 69-79, 2009.

H A. Malhat, S. H. Zainud-Deen, and K. H. Awadalla, Radio Frequency Identification Antenna: Design and Applications, LAP Lambert Academic Publishing, 2012.

A. Noha and S. H. Zainud-Deen, Dielectric Resonator Antennas on Curved Surfaces, LAP Lambert Academic Publishing, 2013.

P. Rezaei, M. Hakkak, and K. Forooraghi, “Design of wide-band dielectric resonator antenna with a two-segment structure,” Progress In Electromagnetics Research, PIER, vol. 66.

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Published

2019-08-01

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