Ag-diffusion inhibition mechanism in SiO2-added glass-ceramics for 5G antenna applications

被引：17

作者：

Feng, Kuei-Chih ^{[1
]}

Chu, Ming-Wei ^{[1
]}

Ku, Chia-Hao ^{[2
]}

Chen, Pin-Yi ^{[1
]}

Tu, Chi-Shun ^{[3
]}

Chen, Cheng-Sao ^{[4
]}

Chien, R. R. ^{[1
]}

Iizuka, Yoshiyuki ^{[5
]}

机构：

[1] Ming Chi Univ Technol, Dept Mech Engn, New Taipei 24301, Taiwan

[2] Ming Chi Univ Technol, Dept Elect Engn, New Taipei 24301, Taiwan

[3] Fu Jen Catholic Univ, Dept Phys, New Taipei 24205, Taiwan

[4] Hwa Hsia Univ Technol, Dept Mech Engn, New Taipei 23567, Taiwan

[5] Acad Sinica, Inst Earth Sci, Taipei 115, Taiwan

来源：

CERAMICS INTERNATIONAL | 2020年 / 46卷 / 15期

关键词：

LTCC; Glass-ceramic; Silver diffusion; Microwave dielectric; 5G patch antenna; MICROWAVE DIELECTRIC-PROPERTIES; SILVER DIFFUSION; LTCC; COMPOSITES; RESONATOR; DENSIFICATION; CONDUCTIVITY; VISCOSITY; BEHAVIOR; FILMS;

D O I：

10.1016/j.ceramint.2020.06.186

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Glass-ceramics for low-temperature co-fired-ceramic 5G wireless devices exhibit excellent microwave properties. However, silver diffusion and interdiffusion of the electrode decreases the high-frequency conductivity. In this work, the inhibition of the silver diffusion mechanism in CaO-MgO-SiO2 glass-ceramics was investigated. Specimens without SiO2 were found to exhibit both Ag diffusion and Zn, Mg, and Ca interdiffusion. In contrast, samples with SiO2 show much less diffusion and a Ag6O2 phase at the diffusive boundary layer, indicating that the SiO2 addition inhibits Ag diffusion and interdiffusion. Elemental mapping indicated the presence of a concentration gradient-reaction between the SiO2 particles and the glass-ceramic. This reaction enhances the glass viscosity and inhibits Ag diffusion and interdiffusion. SiO2-added glass-ceramics co-fired with an Ag electrode show improved 5G-patch-antenna microwave characteristics, with an enhanced conductivity at -8.2 GHz and a return loss of S-11 = -23 dB at -28.3 GHz.

引用

页码：24083 / 24090

页数：8

共 46 条

[1]

Outerelo DA, 2015, IEEE ANTENNAS PROP, P2443, DOI 10.1109/APS.2015.7305610

[2]

Amin MKM, 2017, 2017 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP 2017)

[3]

[Anonymous], 2000, J PHYS-CONDENS MAT

[4]

[Anonymous], 1960, IRE Trans. Microwave Theory Technol., DOI DOI 10.1109/TMTT.1960.1124749

[5] Manufacturing Reliability of LTCC Millimeter-Wave Passive Components [J].

Baras, Torben ;

Jacob, Arne F. .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2008, 56 (11) :2574-2581

[6] Microwave dielectric properties of cordierite-diopside glass-ceramics [J].

Choi, B. K. ;

Kim, E. S. .

JOURNAL OF ELECTROCERAMICS, 2014, 33 (1-2) :89-95

[7] Part II: Phase transformation-induced bloating behavior in diopside glass-ceramics for microwave dielectrics [J].

Chou, Chen Chia ;

Feng, Kuei Chih ;

Raevski, Igor P. ;

Chu, Li Wen ;

Chen, Haydn ;

Chen, Pin-Yi ;

Chen, Cheng-Sao ;

Lee, Hao Wei ;

Tu, Chi-Shun .

MATERIALS RESEARCH BULLETIN, 2017, 96 :71-75

[8] Part I: Effects of two-stage heat treatment on densification, microstructural features and dielectric properties of CaO-MgO-SiO2 glass-ceramics with ZrO2 nucleating agents [J].

Chou, Chen Chia ;

Feng, Kuei Chih ;

Raevski, Igor P. ;

Chen, Haydn ;

Tsao, Chung-Ya ;

Chen, Pin-Yi ;

Chen, Cheng-Sao ;

Lu, Chun-An ;

Tu, Chi-Shun .

MATERIALS RESEARCH BULLETIN, 2017, 96 :66-70

[9] ANALYSIS AND EVALUATION OF A METHOD OF MEASURING COMPLEX PERMITTIVITY AND PERMEABILITY OF MICROWAVE INSULATORS [J].

COURTNEY, WE .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1970, MT18 (08) :476-&

[10] A comprehensive study of the magnetic properties of the pyroxenes series CaMgSi2O6-Co2Si2O6 as a function of Co content [J].

Delmonte, Davide ;

Gori, Claudia ;

Lambruschi, Erica ;

Mantovani, Luciana ;

Mezzadri, Francesco ;

Bersani, Danilo ;

Lottici, Pier Paolo ;

Gilioli, Edmondo ;

Solzi, Massimo ;

Tribaudino, Mario .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2018, 30 (28)

← 1 2 3 4 5 →