Low Insertion Loss Band 1+3+7 Hexaplexer Using Spurious-Suppressed I.H.P. SAW Filter

High-performance compact multiplexers are required to meet the demands of recent high-speed, high-capacity communications and the complexity of RF front-end configurations. In this study, we attempted to fabricate a Band 1+3+7 hexaplexer using higher-order mode suppressed I.H.P. SAW devices. To address the issue of Rayleigh wave response, we determined the optimal suppression parameters through FEM simulation and explored advanced antenna matching circuit configurations. As a result, we successfully fabricated a Band 1+3+7 hexaplexer exhibiting favorable characteristics.