Hostname: page-component-8448b6f56d-cfpbc Total loading time: 0 Render date: 2024-04-18T10:01:44.862Z Has data issue: false hasContentIssue false
  • English
  • Français

Compact SIW directional filter using substrate integrated circular cavities

Published online by Cambridge University Press:  24 February 2020

Mohammad Sajjad Bayati Open the ORCID record for Mohammad Sajjad Bayati [Opens in a new window]  and
Tahsin Khorand
Mohammad Sajjad Bayati*
Affiliation:
Razi University, Electrical and Computer Engineering Faculty, Kermanshah, Iran
Tahsin Khorand
Affiliation:
Razi University, Electrical and Computer Engineering Faculty, Kermanshah, Iran
*
Author for correspondence: Mohammad Sajjad Bayati, E-mail: s.bayati@razi.ac.ir; s.bayati@gmail.com
Get access Rights & Permissions [Opens in a new window]

Abstract

In this paper, a novel directional filter (DF) is proposed and implemented using substrate integrated waveguide (SIW) technology which exhibits the advantages of compact size and simple structure. The proposed DF is realized by two half mode substrate integrated waveguides (HMSIWs) and two substrate integrated circular cavity (SICC) resonators operating in the TM110 degenerate modes in which an aperture is utilized to realize the coupling between HMSIWs and SICCs. Two slotlines with appropriate dimensions, etched on the top and bottom planes, are utilized in order to control coupling strength between two cascaded SICC resonators. The proposed two-circular cavity SIW DF at 12.3 GHz is designed and fabricated with a normal printed circuit board process. Measured and simulated results indicate that the DF has a 3.25% bandwidth, and the return loss as well as isolation are better than 10.5 and 15 dB, respectively.

Keywords

Directional filterhalf mode substrate integrated waveguide (HMSIW)slotlinesubstrate integrated circular cavity (SICC)
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 12 , Issue 5 , June 2020 , pp. 352 - 355
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2020

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Cohn, SB and Coale, FS (1956) Directional channel-separation filters. Proceedings of the IEEE 44, 1018–1024.Google Scholar
Coale, FS (1956) A traveling-wave DF. IEEE Transactions on Microwave Theory and Techniques 4, 256–260.CrossRefGoogle Scholar
Williams, RL (1962) A three-cavity circularly polarized waveguide DF yielding a maximally flat response. IEEE Transactions on Microwave Theory and Techniques 10, 321–328.CrossRefGoogle Scholar
Kim, JP (2011) Improved design of single-section and cascaded planar DFs. IEEE Transactions on Microwave Theory and Techniques 59, 2206–2213.CrossRefGoogle Scholar
Sun, JS, Lobato-morales, H, Choi, JH, Corona-chavez, A and Itoh, T (2012) Multistage DF based on band-reject filter with isolation improvement using composite right-/left-handed transmission lines. IEEE Transactions on Microwave Theory and Techniques 60, 3950–3958.CrossRefGoogle Scholar
Deslandes, D and Wu, K (2001) Integrated microstrip and rectangular waveguide in planar form. IEEE Microwave Wireless Component Letter 11, 68–70.CrossRefGoogle Scholar
Danaeian, M, Moznebi, A-R, Afrooz, K and Hakimi, A (2017) Miniaturized filtering SIW power divider with arbitrary power-dividing ratio loaded by open complementary split-ring resonators. International Journal of Microwave and Wireless Technologies 9, 1827–1832.CrossRefGoogle Scholar
Liu, Q, Zhou, D, Zhang, D, Bian, C and Zhang, Y (2019) Ultra-compact quasi-elliptic bandpass filter based on capacitive-loaded eighth-mode SIW cavities. International Journal of Microwave and Wireless Technologies, 1–7.Google Scholar
Tang, Y, Wu, K and Mallat, NK (2018) Development of substrate integrated waveguide filters for low-cost high-density RF and microwave circuit integration: pseudo-elliptic dual mode cavity band-pass filters. AEU-International Journal of Electronics and Communications 70, 1457–1466.CrossRefGoogle Scholar
Song, K, Luo, Z, Guo, S, Fan, M and Zhou, Y (2018) Modified Y-junction SIW power divider/combiner circuit. International Journal of Microwave and Wireless Technologies 10, 877–882.CrossRefGoogle Scholar
Song, K, Nura, AA, Hu, B, Zhu, Y, Chen, F and Fan, Y (2015) Broadband six-way out-of-phase SIW power divider. International Journal of Microwave and Wireless Technologies, 165–170.Google Scholar
Khorand, T and Bayati, MS (2018) Novel half-mode substrate integrated waveguide bandpass filters using semi-hexagonal resonators. AEU-International Journal of Electronics and Communications 95, 52–58.CrossRefGoogle Scholar
Cheng, Y, Hong, W and Wu, K (2007) Half mode substrate integrated waveguide (HMSIW) DF. IEEE Microwave and Wireless Components Letters 17, 504–506.CrossRefGoogle Scholar
Wang, Y, You, C and Zhu, X (2009) Half-mode substrate integrated waveguide (HMSIW) DF with complementary split ring resonator (CSRR). Asia-Pacific Microwave Conference. doi: 10.1109/APMC.2009.5385227.Google Scholar
Pozar, DM (2005) Microwave Engineering, 3rd Edn.New York: Wiley. Ch. 6. 266–307.Google Scholar
Matthaei, GL, Young, L and Jones, EMT (1964) Microwave Filters, Impedance-Matching Networks, Coupling Structures. New York, NY, USA: McGraw-Hill, 843–887.Google Scholar