Glass-Ceramics and Glasses for Microwave and THz Applications
VARGHESE J. 1, IHLE M. 1, ZIESCHE S. 1, PARTSCH U. 1, OLSZEWSKA-PLACHA M. 2, RUDNICKI J. 2, SYNKIEWICZ-MUSIALSKA B. 3, SZWAGIERCZAK D. 3, CLEMENTE A. 4, GHARBIEH S. 4, TURKI H. 5, OLIVIER V. 5, LENOIR B. 5
1 Department of Hybrid Microsystems, Microsystems LTCC and HTCC, Fraunhofer IKTS, Winterbergstraße 28, 01277 Dresden, Germany, Dresden, Germany; 2 QWED Sp. z o.o., Krzywickiego 12/1, 02-078 Warsaw, Poland , Warsaw, Poland; 3 Lukasiewicz Research Network-Institute of Microelectronics and Photonics, Kraków Division, ul. Zablocie 39, 30-701 Kraków, Poland, Kraków, Poland; 4 CEA-Leti, Université Grenoble-Alpes, F-38000 Grenoble, France, Grenoble, France; 5 Inoveos France, 6 Rue Pierre Milon 19100 Brive-la-Gaillarde, France, Brive-la-Gaillarde, France
Abstract
Frequency beyond 10 GHz supplies plenty of bandwidth for high data rates to discover abiding 5G and hereafter 6G directives. Multilayer ceramic materials (LTCC-Low Temperature Co-fired Ceramics and ULTCC-Ultra Low-Temperature Co-fired Ceramic)1 play a vital role in telecommunication components that will go into 5G and 6G applications, and materials with advanced dielectric properties will recreate an essential position. The dielectric properties of glass-ceramics and glasses are ideal for high-frequency transmission where low dielectric constant (<15), low dielectric loss (<0.01; quality factor*frequency (Qu*f) above 1000 GHz) and temperature stability of resonant frequency (<±50 ppm/K) and permittivity are important materials properties. The present article reports the preliminary research results of the ULTCC6G_EPac M.ERA.NET project. The glass ceramics and glasses samples exhibit moderately good microwave and THz properties. This justifies evaluation of the feasibility of developing in LTCC and ULTCC technology and validating the demonstrator transmit array antennas with Tx/Rx functions (Duplexers)2. The initial design and simulation of the transmit array unit cell at 140 GHz are discussed based on LTCC A6M substrates properties studied at the microwave to THz frequencies. Glass ceramics and glasses-based materials and component grade research are pledging to realize the market requirements in high-frequency base station antenna arrays (MIMO-Massive Multiple Input Multiple Output), filtering and switching technologies.
References
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. O. Koutsos, F. F. Manzillo, A. Clemente and R. Sauleau, "Analysis, Rigorous Design, and Characterization of a Three-Layer Anisotropic Transmitarray at 300 GHz," in IEEE Transactions on Antennas and Propagation, vol. 70, no. 7, pp. 5437-5446, July 2022, doi: 10.1109/TAP.2022.3145506.