Design and analysis of compact SIW Bandpass filter using DGS-DMS technique for satellite applications

Banu priya A, Umma Habiba H

Abstract


This letter proposes a new compact substrate integrated waveguide based bandpass filter for satellite application. First SIW BPF is designed by tapered via transition to provide a smooth transition from microstip line to SIW cavity with minimal reflection and better S11 performance. The stop band performance of the proposed filter is improved by introducing a two square head DGS connected by U-slot on the bottom ground palne which introduces transmission zeros in upper stopband. DMS is made by etching two horizontal slots on the top of the SIW cavity in order to provide finite passband and to suppress undesired harmonic response. The filter with center frequency of 7GHz and fractional bandwidth of 2.8% is developed on the Rogers substrate with dielectric constant of 3.5 and substrate thickness of 0.5mm. By combining the concept of DGS-DMS, the proposed filter exhibits very low insertion loss of 0.02dB, return loss >20dB and compact size. The structure is simulated and analyzed by using Advanced Design software.

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References


Chandra Sekhar Panda, Rashmiranjan Nayak, Santanu Kumar Behera, “Design and Analysis of a Compact Substrate Integrated Waveguide Bandpass Filter for Ku Band Applications”, IEEE, 978-1-5090-4556-3/16. 2016.

Hao Zhang, Wei Kang and Wen Wu, “Dual-band substrate integrated waveguide bandpass filter utilising complementary split-ring resonators”, Electronic Letters, Vol. 54, No. 2, pp. 85–87,25th January 2018.

Zheng Liu,Gaobiao Xiao,Lei Zhu, “Triple mode bandpass filteron CSRR loaded substrate integrated waveguide cavities”, IEEE Transactions on components, packaging and manufacturing technology, vol.6,No.7, pp 1101-1107, July 2016.

Mukesh Kumar Khandelwal, Binod Kumar Kanaujia, and Sachin Kumar. “Defected Ground Structure: Fundamentals, Analysis, and Applications in Modern Wireless Trends”, Hindawi International Journal of Antennas and Propagation, Volume 2017, Article ID 2018527, 22 pages, February 2017.

Weiping Li, Zongxi Tang, and Xin Cao, “Design of a SIW Bandpass Filter Using Defected Ground Structure with CSRRs”, Hindawi Active and Passive Electronic Components, Volume 2017, Article ID 1606341, 6 pages, January 2017.

Huang Y.M., Shao Z., You C.J., ET AL.: ‘Size-reduced bandpass filters using quarter-mode substrate integrated waveguide loaded with different defected ground structure patterns’, IEEE, 978-1-4799-8275-2/15, 2015.

Yonghui Song, Guo-Min Yang and Wen Geyi, “Compact UWB Bandpass Filter With Dual Notched Bands Using Defected Ground Structures”, IEEE Microwave and Wireless Components Letters, Vol. 24, No.4, pp 230-232. April 2014.

Lin W.-J., Chen L.-S., Houng M.-P.: ‘Controllable reverse double U-shaped defected ground structure for bandpass filter with improved out-of-band performances’, Microw. Opt. Technol. Lett., Vol.50, No.12, pp. 3055–3057, 2008.

A. Boutejdar, A. Omar, M. Al Sharkawy, A. Darwish, “A Simple Transformation of Improved WLAN Band Pass to Low Pass Filter Using Defected Ground Structure (DGS), Defected Microstrip Structure (DMS) and Multilayer-Technique”, Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol. 12, No. 1,pp 111-129 June 2013.

Hong J.-S., Lancaster M.J.: ‘Microstrip filters for RF/microwave applications’ (John Wiley & Sons, Inc., 2001)


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