Microcellular TLCP/SiO2 for high-frequency communication design
Source abstract
Abstract
• Long-chain branched agent and nucleating agent are used for TLCP modification. • Modified TLCP foams can achieve excellent cell morphology and controlled density. • Modified TLCP foams exhibit excellent comprehensive performance. • The potential of modified TLCP foams as antenna substrates is confirmed by simulation. With the development of high-frequency and high-speed communication technologies, especially in microwave/millimeter-wave applications, electronic devices face increased performance demands. Developing low dielectric materials with exceptional properties for these devices has become a significant challenge. Thermotropic liquid crystal polymers (TLCP) are promising due to their excellent high-frequency performance, while microcellular foaming technology is commonly used to enhance dielectric properties. In this study, TLCP was modified with ADR and nano-SiO 2 . The synergistic modification introduces long-chain branched structures and nucleation sites, improving matrix performance and optimizing foaming behavior. In addition, long-chain branched TLCP/SiO 2 foam has highly compressive properties, excellent dimensional stability, ultra-low dielectric stability at high frequencies, great flame retardant and wonderful high-temperature infrared thermal stealth performance. It is also found by simulation that the patch antenna with long-chain branched TLCP/SiO 2 foam substrate has excellent signal transmission performance. The transmission distance up to 4793 m, which is 5.8 times higher than pure TLCP before foaming, which presents a novel solution for high-frequency and high-speed communication. Furthermore, the long-chain branched TLCP/SiO 2 foams with significant performance is expected to be used in sophisticated technology fields such as wide-ranging applications in military, extreme conditions, aviation, microelectronic and other fields.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Materials and Mechanics · Advanced Sensor and Energy Harvesting Materials · Interconnection Networks and Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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