Substrate Integrated Waveguide (SIW) Bandpass Filter with Novel Microstrip-CPW-SIW Input Coupling

Article


Nwajana, Augustine, Dainkeh, A. and Yeo, K. 2017. Substrate Integrated Waveguide (SIW) Bandpass Filter with Novel Microstrip-CPW-SIW Input Coupling. Journal of Microwaves, Optoelectronics and Electromagnetic Applications. 16 (2), pp. 393-402.
AuthorsNwajana, Augustine, Dainkeh, A. and Yeo, K.
Abstract

A Substrate integrated waveguide bandpass filter is presented with a novel CPW-to-SIW transition at both the input and output ports which also served as the input and output couplings into the filter. The CPW-to-SIW transition structures presented here exploited the step impedance between the 50 ohms input/output feedline and the transition to control the input/output couplings of the filter. The SIW filter is also shown to have very minimum milling or etching requirement which reduces the fabrication error. The proposed SIW filter has been validated experimentally and results presented. The results show that a simulated return loss of 15 dB and an initial measured return loss of 16 dB were achieved. An improved measured return loss of 22 dB was later achieved after some tuining adjustments were performed on the filter input and output couplings. A minimum insertion loss of 1.3 dB was also achieved across the band.

JournalJournal of Microwaves, Optoelectronics and Electromagnetic Applications
Journal citation16 (2), pp. 393-402
ISSN2179-1074
Year2017
PublisherBrazilian Microwave and Optoelectronics Society (SBMO) and Brazilian Society of Electromagnetism (SBMag).
Publisher's version
License
CC BY
Digital Object Identifier (DOI)doi:10.1590/2179-10742017v16i2793
Web address (URL)https://doi.org/10.1590/2179-10742017v16i2793
Publication dates
Print01 Jun 2017
Publication process dates
Deposited10 Aug 2017
Accepted01 Feb 2017
Copyright information© 2017 SBMO/SBMag
Permalink -

https://repository.uel.ac.uk/item/84v74

  • 23
    total views
  • 70
    total downloads
  • 3
    views this month
  • 2
    downloads this month

Related outputs

8 pole high temperature superconductor microstrip dual band bandpass filter design
Yeo, K. and Lancaster, Michael J. 2011. 8 pole high temperature superconductor microstrip dual band bandpass filter design. in: Proceedings of 2011 IEEE MTT-S International Microwave Symposium Institute of Electrical and Electronics Engineers (IEEE). pp. 1-4
Quasi-elliptic microstrip bandstop filter using tap coupled open-loop resonators
Yeo, K. and Vijaykumar, Punna 2012. Quasi-elliptic microstrip bandstop filter using tap coupled open-loop resonators. Progress In Electromagnetics Research C. 35, pp. 1-11.
A novel microstrip dual-band bandpass filter using dual-mode square patch resonators
Yeo, K. and Nwajana, Augustine Onyenwe 2013. A novel microstrip dual-band bandpass filter using dual-mode square patch resonators. Progress In Electromagnetics Research C. 36, pp. 233-247.
Multi-coupled resonator microwave diplexer with high isolation
Nwajana, Augustine O. and Yeo, K. 2016. Multi-coupled resonator microwave diplexer with high isolation. in: Proceedings of the 2016 46th European Microwave Conference (EuMC) Institute of Electrical and Electronics Engineers (IEEE). pp. 1167-1170
Filtered power splitter using microstrip square open loop resonators
Dainkeh, Amadu, Nwajana, Augustine O. and Yeo, K. 2016. Filtered power splitter using microstrip square open loop resonators. Progress In Electromagnetics Research C. 64, pp. 133-140.
Microwave Diplexer Purely Based on Direct Synchronous and Asynchronous Coupling
Nwajana, A. O. and Yeo, K. 2016. Microwave Diplexer Purely Based on Direct Synchronous and Asynchronous Coupling. Radioengineering. 25 (2), pp. 247-252.
Low cost SIW Chebyshev bandpass filter with new input/output connection
Nwajana, Augustine O., Yeo, K. and Dainkeh, Amadu 2017. Low cost SIW Chebyshev bandpass filter with new input/output connection. in: 2016 16th Mediterranean Microwave Symposium (MMS) Institute of Electrical and Electronics Engineers (IEEE). pp. 1-4