DataVXACS Applied Electronic MaterialsPaper
journal article·2021-05-25

Temperature-Stable x(Na0.5Bi0.5)MoO4–(1–x)MoO3 Composite Ceramics with Ultralow Sintering Temperatures and Low Dielectric Loss for Dielectric Resonator Antenna Applications

Shu-Zhao Hao, Di Zhou, Chao Du, Li-Xia Pang, Charanjeet Singh, Sergei Trukhanov, Alex Trukhanov, Antonio Sergio Bezerra Sombra, Jobin Varghese, Qiang Li, Xiu-Qun Zhang

ACS Applied Electronic Materials· Volume 3· Issue 5
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Source abstract

Abstract

Fifth-generation mobile communication systems provide a huge market for microwave dielectric materials, especially in the manufacture of dielectric resonators, filters, substrates, and antennas. Herein, an excellent performance microwave dielectric ceramic x(NaBi)0.5MoO4–(1–x)MoO3 (0.2 ≤ x ≤ 0.9, abbreviated as xNBM–(1–x)MO sintered below 660 °C with two coexisting phases is prepared via a solid solution reaction. With the increasing x value, the sintering temperature rises from 600 to 640 °C. The dielectric properties have a series of changes with increasing permittivity (10.3–28.1), decreasing Qf value (12,080 to 8600 GHz), and increasing τf value (−27.1 to +21.2 ppm/°C). Typically, at the ultralow temperature of 630 °C, the 0.8NBM–0.2MO ceramic exhibits great microwave performance with εr ∼ 24.4, Qf ∼ 9030 GHz (7.7 GHz), and a near-zero τf ∼ 7.2 ppm/°C. A prototype dielectric resonator antenna is manufactured using a 0.8NBM–0.2MO ceramic. A high-impedance bandwidth ∼360 MHz can be obtained in the antenna at 7.74 GHz with −10 dB transmission loss (S11). Furthermore, the chemical compatibility with Al powder indicates that the xNBM–(1–x)MO composite ceramics may be promising microwave materials for applications in ultralow-temperature co-fired ceramic technology.
Source: openalex_inverted_index · Quality: baseline

Research context

Ceramics & glassesComposites

OpenAlex topics: Microwave Dielectric Ceramics Synthesis · Ferroelectric and Piezoelectric Materials · Full-Duplex Wireless Communications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Multifunctional Materials and Structures, Ministry of Education, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China

Micro-optoelectronic Systems Laboratories, Xi’an Technological University, Xi’an, Shaanxi 710032, China

School of Electronics and Communication Engineering, Lovely Professional University, Jalandhar, Punjab 144411, India

National University of Science and Technology “MISiS”, Leninskii Avenue, 4, Moscow 4119049, Russia

South Ural State University, Lenin Avenue, 76, Chelyabinsk 454080, Russia

Scientific and Practical Materials Research Center of the NAS of Belarus, P. BrovkiStr., 19, Minsk 220072, Belarus

Telecommunication Engineering Department, Telecommunication and Materials Science and Engineering of Laboratory (LOCEM), Physics Department, Federal University of Ceará (UFC), Pici Campus, Fortaleza, Ceará 60455-760, Brazil

Jobin Hybrid Microsystems, Fraunhofer Institute for Ceramic Technology and Systems IKTS, Winterbergstraße 28, Dresden 01277, Germany

ZTE Corporation, District Nanshan, Shenzhen 518000, China

ZTE Corporation, District Yuhuatai, Nanjing 210012, China

Funding

Natural Science Foundation of Shanghai · State Key Laboratory of Electrical Insulation and Power Equipment · Fundamental Research Funds for the Central Universities · National Key Research and Development Program of China

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