Wideband Microwave Photonic Circulator Using Two Asymmetric Partial-Height Triangle Ferrites

Broadband 5G communication requires the operation of nonreciprocal devices in the Ku band. A wideband photonic crystal circulator is implemented by introducing two partial-height triangular Ni-Zn ferrites into the Al<sub>2</sub>O<sub>3</sub> ceramic rod-arrays. The asymmetric...

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Main Authors: Yong Wang, Biaogang Xu, Wenlong He, Hou Ian
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/19/6689
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author Yong Wang
Biaogang Xu
Wenlong He
Hou Ian
author_facet Yong Wang
Biaogang Xu
Wenlong He
Hou Ian
author_sort Yong Wang
collection DOAJ
description Broadband 5G communication requires the operation of nonreciprocal devices in the Ku band. A wideband photonic crystal circulator is implemented by introducing two partial-height triangular Ni-Zn ferrites into the Al<sub>2</sub>O<sub>3</sub> ceramic rod-arrays. The asymmetric sizes of the two equilateral triangles paired with self-matching effectively extend the bandwidth of the circulator eight times over that of the symmetric scheme. Numerical simulations demonstrate that the photonic crystal circulator can obtain a bandwidth of 1.00 GHz with an isolation 25.75 dB and an insertion loss 0.381 dB through optimized matched triangle size ratio, suitable for applications in future communication systems.
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spelling doaj.art-be94f6e87556474f92a8deb8de8b1d1e2023-11-23T20:55:05ZengMDPI AGMaterials1996-19442022-09-011519668910.3390/ma15196689Wideband Microwave Photonic Circulator Using Two Asymmetric Partial-Height Triangle FerritesYong Wang0Biaogang Xu1Wenlong He2Hou Ian3Institute of Applied Physics and Materials Engineering, University of Macau, Macau 999078, ChinaCollege of Electronics and Information Technology, Shenzhen University, Shenzhen 518060, ChinaCollege of Electronics and Information Technology, Shenzhen University, Shenzhen 518060, ChinaInstitute of Applied Physics and Materials Engineering, University of Macau, Macau 999078, ChinaBroadband 5G communication requires the operation of nonreciprocal devices in the Ku band. A wideband photonic crystal circulator is implemented by introducing two partial-height triangular Ni-Zn ferrites into the Al<sub>2</sub>O<sub>3</sub> ceramic rod-arrays. The asymmetric sizes of the two equilateral triangles paired with self-matching effectively extend the bandwidth of the circulator eight times over that of the symmetric scheme. Numerical simulations demonstrate that the photonic crystal circulator can obtain a bandwidth of 1.00 GHz with an isolation 25.75 dB and an insertion loss 0.381 dB through optimized matched triangle size ratio, suitable for applications in future communication systems.https://www.mdpi.com/1996-1944/15/19/6689circulatorsphotonic crystalmicrowave photonicferrites5Gwideband
spellingShingle Yong Wang
Biaogang Xu
Wenlong He
Hou Ian
Wideband Microwave Photonic Circulator Using Two Asymmetric Partial-Height Triangle Ferrites
Materials
circulators
photonic crystal
microwave photonic
ferrites
5G
wideband
title Wideband Microwave Photonic Circulator Using Two Asymmetric Partial-Height Triangle Ferrites
title_full Wideband Microwave Photonic Circulator Using Two Asymmetric Partial-Height Triangle Ferrites
title_fullStr Wideband Microwave Photonic Circulator Using Two Asymmetric Partial-Height Triangle Ferrites
title_full_unstemmed Wideband Microwave Photonic Circulator Using Two Asymmetric Partial-Height Triangle Ferrites
title_short Wideband Microwave Photonic Circulator Using Two Asymmetric Partial-Height Triangle Ferrites
title_sort wideband microwave photonic circulator using two asymmetric partial height triangle ferrites
topic circulators
photonic crystal
microwave photonic
ferrites
5G
wideband
url https://www.mdpi.com/1996-1944/15/19/6689
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AT wenlonghe widebandmicrowavephotoniccirculatorusingtwoasymmetricpartialheighttriangleferrites
AT houian widebandmicrowavephotoniccirculatorusingtwoasymmetricpartialheighttriangleferrites