Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-23T13:07:45.415Z Has data issue: false hasContentIssue false
  • English
  • Français

Design of wideband multi-layer quadrature hybrid couplers with butterfly shaped resonators

Published online by Cambridge University Press:  02 July 2021

Meliksah Yayan Open the ORCID record for Meliksah Yayan [Opens in a new window]  and
Alparslan Cagri Yapici
Meliksah Yayan*
Affiliation:
Aselsan Ind. Inc., Ankara, Turkey
Alparslan Cagri Yapici
Affiliation:
Baskent University, Ankara, Turkey
*
Author for correspondence: Meliksah Yayan, E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

In this paper, a wideband quadrature hybrid coupler is presented. The proposed structure has a multi-layer microstrip topology. In this topology, there are three substrate layers including prepreg material and four conductive layers. In order to achieve equal power division between through and coupled arms of the directional coupler while maintaining a 90° phase shift, aperture coupling between the resonators located at both top and bottom layers is utilized. So as to avoid any unwanted effects of prepreg material in such multilayer topology, via shielding around resonators are inserted. In this study, coupling from input ports to output ports is accomplished by the shielded butterfly shaped slot etched to the ground layer of top and bottom layers. The proposed design operates within 3–12 GHz. The acquired phase imbalance between the coupled ports is <±2.5°. The results of the manufactured quadrature hybrid coupler agree well with the simulated results.

Keywords

Quadrature hybrid couplerwidebandbutterfly shaped resonators
Type
Passive Components and Circuits
Information
International Journal of Microwave and Wireless Technologies , Volume 14 , Issue 7 , September 2022 , pp. 815 - 823
Check for updates
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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

Pozar, DM (2005) Microwave Engineering. Hoboken, NJ: Wiley.Google Scholar
Alqahtani, BM, Sheta, AF and Alkanhal, MA (2009) New compact wideband branch-line couplers, 2009 European Microwave Conference (EuMC), Rome, pp. 1159–1162.Google Scholar
Chun, Y and Hong, J (2006) Compact wide-band branch-line hybrids. IEEE Transactions on Microwave Theory and Techniques 54, 704–709.CrossRefGoogle Scholar
Cerna, RD and Yarleque, MA Design and implementation of a wideband 8×8 Butler Matrix for AWS and PCS 1900 MHz beamforming networks, IEEE International Wireless Symposium (IWS 2015), Shenzhen, 2015, pp. 1–4.CrossRefGoogle Scholar
Yoon, H and Min, B (2017) Two section wideband 90 hybrid coupler using parallel-coupled three-line. IEEE Microwave and Wireless Components Letters 27, 548–550.CrossRefGoogle Scholar
Djerafi, T and Wu, K (2007) Super-compact substrate integrated waveguide cruciform directional coupler. IEEE Microwave and Wireless Components Letters 17, 757–759.CrossRefGoogle Scholar
Djerafi, T, Fonseca, NJG and Wu, K (2010) Design and implementation of a planar 4×4 butler matrix in SIW technology for wideband applications, The 40th European Microwave Conference, Paris, pp. 910–913.Google Scholar
Hao, ZC, Hong, W, Chen, JX, Zhou, HX and Wu, K (2006) Single-layer substrate integrated waveguide directional couplers. IEE Proceedings – Microwaves, Antennas and Propagation 153, 426–431.CrossRefGoogle Scholar
Sun, S and Zhu, L (2010) Miniaturized patch hybrid couplers using asymmetrically loaded cross slots. IET Microwaves, Antennas and Propagation 4, 1427–1433.CrossRefGoogle Scholar
Jing, X, Jiang, LJ, Sun, S and Zhu, L (2016) A patch-resonator-based Butler Matrix with new triangular phase shifters, 2016 IEEE International Symposium on Antennas and Propagation (APSURSI), Fajardo, pp. 61–62.Google Scholar
Abbosh, AM and Bialkowski, ME (2007) Design of compact directional couplers for UWB applications. IEEE Transactions on Microwave Theory and Techniques 55, 189–194.CrossRefGoogle Scholar
Moscoso-Martir, A, Wanguemert-Perez, JG, Molina-Fernandez, I and Marquez-Segura, E (2009) Slot-coupled multisection quadrature hybrid for UWB applications. IEEE Microwave and Wireless Components Letters 19, 143–146.CrossRefGoogle Scholar
Ahmed, OMH, Sebak, A-R and Dedidni, TD (2012) A novel butterfly-shaped multilayer back microstrip hybrid coupler for UWB applications. Microwave and Optical Technology Letters 54, 2231–2237.CrossRefGoogle Scholar
Wong, M, Hanna, VF, Picon, O and Baudrand, H (1991) Analysis and design of slot-coupled directional couplers between double-sided substrate microstrip lines. IEEE Transactions on Microwave Theory and Techniques 39, 2123–2129.CrossRefGoogle Scholar
Hilberg, W (1969) From approximations to exact relations for characteristic impedances. IEEE Transactions on Microwave Theory and Techniques 17, 259–265.CrossRefGoogle Scholar