View in EDS

Miniaturized high-harmonic-suppressed circulators with integrated design enabled by Cu2+/Ti4+ Co-doped NiCuZn ferrites (high-εr) and LTCC technology.

Saved in:
Bibliographic Details
Title: Miniaturized high-harmonic-suppressed circulators with integrated design enabled by Cu2+/Ti4+ Co-doped NiCuZn ferrites (high-εr) and LTCC technology.
Authors: Cheng, Zelai1 (AUTHOR), Huo, Xingyu1 (AUTHOR), Zhao, Zhen1 (AUTHOR), Qiao, Feng2 (AUTHOR), Yang, Xiuling2 (AUTHOR), Chen, Ying3 (AUTHOR), Qu, Mingshan1,2 (AUTHOR) Wang_x_xi@163.com, Su, Hua1 (AUTHOR) uestcsh77@163.com
Source: Ceramics International. Nov2025:Part B, Vol. 51 Issue 26, p49612-49619. 8p.
Subjects: Circulators (Electrical engineering), Low Temperature Cofired Ceramic technology, Microwave materials, Ferrimagnetic materials, Applied sciences, Permittivity, Harmonic suppression filters
Abstract: This work presents a miniaturization strategy for ferrite circulators by enhancing the dielectric constant ε r of NiCuZn ferrites and LTCC technology. Highly polarizable Cu2+ and Ti4+ substitutions for Ni2+ and Fe3+ increase dielectric constant, while non-magnetic Ti4+ reduces magnetocrystalline anisotropy and narrows ferromagnetic resonance linewidth ΔH , with Cu2+ concurrently lowering sintering temperatures. In the Ni 0.42-x/2 Cu 0.18+x Zn 0.4 Ti x/2 Fe 1.98-x O 4-δ system, the x = 0.1 composition (sintered at 975 °C) achieves minimal ΔH (82 Oe), ε r ≈ 14.6, and 4π M s ≈ 4219 G, whereas x = 0.6 (sintered at 925 °C) balances ε r ≈ 20.8 with magnetic performance (ΔH ≈167 Oe, 4π M s ≈ 2117 G), confirming LTCC compatibility. A heterostructured substrate fabricated by co-firing Ni 0.12 Cu 0.78 Zn 0.4 Ti 0.3 Fe 1.38 O 4-δ ferrite (x = 0.6) with a microwave dielectric (50 wt% SrCu 0.95 Mn 0.05 Si 4 O 10 + 50 wt% Sr 3 V 2 O 8) exhibits controlled interfacial diffusion. HFSS simulations demonstrate that the integrated circulator-filter achieves significant miniaturization with >30 dB harmonic suppression (14–24 GHz) while maintaining in-band performance (| S 21 | < 1 dB, | S 11 | and | S 12 | < −20 dB at 7–12 GHz). The validates high- ε r NiCuZn ferrites and LTCC composite substrates for compact multifunctional microwave components. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 188630393
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Miniaturized high-harmonic-suppressed circulators with integrated design enabled by Cu2+/Ti4+ Co-doped NiCuZn ferrites (high-εr) and LTCC technology.
– Name: Author
  Label: Authors
  Group: Au
  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Cheng%2C+Zelai%22&quot;&gt;Cheng, Zelai&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Huo%2C+Xingyu%22&quot;&gt;Huo, Xingyu&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Zhao%2C+Zhen%22&quot;&gt;Zhao, Zhen&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Qiao%2C+Feng%22&quot;&gt;Qiao, Feng&lt;/searchLink&gt;&lt;relatesTo&gt;2&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Yang%2C+Xiuling%22&quot;&gt;Yang, Xiuling&lt;/searchLink&gt;&lt;relatesTo&gt;2&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Chen%2C+Ying%22&quot;&gt;Chen, Ying&lt;/searchLink&gt;&lt;relatesTo&gt;3&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Qu%2C+Mingshan%22&quot;&gt;Qu, Mingshan&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt; (AUTHOR)&lt;i&gt; Wang_x_xi@163.com&lt;/i&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Su%2C+Hua%22&quot;&gt;Su, Hua&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;i&gt; uestcsh77@163.com&lt;/i&gt;
– Name: TitleSource
  Label: Source
  Group: Src
  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Ceramics+International%22&quot;&gt;Ceramics International&lt;/searchLink&gt;. Nov2025:Part B, Vol. 51 Issue 26, p49612-49619. 8p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Circulators+%28Electrical+engineering%29%22&quot;&gt;Circulators (Electrical engineering)&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Low+Temperature+Cofired+Ceramic+technology%22&quot;&gt;Low Temperature Cofired Ceramic technology&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Microwave+materials%22&quot;&gt;Microwave materials&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Ferrimagnetic+materials%22&quot;&gt;Ferrimagnetic materials&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Applied+sciences%22&quot;&gt;Applied sciences&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Permittivity%22&quot;&gt;Permittivity&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Harmonic+suppression+filters%22&quot;&gt;Harmonic suppression filters&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This work presents a miniaturization strategy for ferrite circulators by enhancing the dielectric constant ε r of NiCuZn ferrites and LTCC technology. Highly polarizable Cu2+ and Ti4+ substitutions for Ni2+ and Fe3+ increase dielectric constant, while non-magnetic Ti4+ reduces magnetocrystalline anisotropy and narrows ferromagnetic resonance linewidth ΔH , with Cu2+ concurrently lowering sintering temperatures. In the Ni 0.42-x/2 Cu 0.18+x Zn 0.4 Ti x/2 Fe 1.98-x O 4-δ system, the x = 0.1 composition (sintered at 975 &#176;C) achieves minimal ΔH (82 Oe), ε r ≈ 14.6, and 4π M s ≈ 4219 G, whereas x = 0.6 (sintered at 925 &#176;C) balances ε r ≈ 20.8 with magnetic performance (ΔH ≈167 Oe, 4π M s ≈ 2117 G), confirming LTCC compatibility. A heterostructured substrate fabricated by co-firing Ni 0.12 Cu 0.78 Zn 0.4 Ti 0.3 Fe 1.38 O 4-δ ferrite (x = 0.6) with a microwave dielectric (50 wt% SrCu 0.95 Mn 0.05 Si 4 O 10 + 50 wt% Sr 3 V 2 O 8) exhibits controlled interfacial diffusion. HFSS simulations demonstrate that the integrated circulator-filter achieves significant miniaturization with &gt;30 dB harmonic suppression (14–24 GHz) while maintaining in-band performance (| S 21 | &lt; 1 dB, | S 11 | and | S 12 | &lt; −20 dB at 7–12 GHz). The validates high- ε r NiCuZn ferrites and LTCC composite substrates for compact multifunctional microwave components. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: &lt;i&gt;Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=188630393
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.ceramint.2025.08.200
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 49612
    Subjects:
      – SubjectFull: Circulators (Electrical engineering)
        Type: general
      – SubjectFull: Low Temperature Cofired Ceramic technology
        Type: general
      – SubjectFull: Microwave materials
        Type: general
      – SubjectFull: Ferrimagnetic materials
        Type: general
      – SubjectFull: Applied sciences
        Type: general
      – SubjectFull: Permittivity
        Type: general
      – SubjectFull: Harmonic suppression filters
        Type: general
    Titles:
      – TitleFull: Miniaturized high-harmonic-suppressed circulators with integrated design enabled by Cu2+/Ti4+ Co-doped NiCuZn ferrites (high-εr) and LTCC technology.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Cheng, Zelai
      – PersonEntity:
          Name:
            NameFull: Huo, Xingyu
      – PersonEntity:
          Name:
            NameFull: Zhao, Zhen
      – PersonEntity:
          Name:
            NameFull: Qiao, Feng
      – PersonEntity:
          Name:
            NameFull: Yang, Xiuling
      – PersonEntity:
          Name:
            NameFull: Chen, Ying
      – PersonEntity:
          Name:
            NameFull: Qu, Mingshan
      – PersonEntity:
          Name:
            NameFull: Su, Hua
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 05
              M: 11
              Text: Nov2025:Part B
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 02728842
          Numbering:
            – Type: volume
              Value: 51
            – Type: issue
              Value: 26
          Titles:
            – TitleFull: Ceramics International
              Type: main
ResultId 1