A class of novel arbitrary-order balanced bandpass filters (BPFs) and balanced quasi-reflectionless BPFs (QR BPFs) using out-of-phase coupled double-sided parallel-strip lines (DSPSLs) are presented ...
Abstract: Multimode sensing based on whispering gallery mode (WGM) microcavities has attracted significant attention due to its diverse optical modes, which offer the potential for enhanced sensing ...
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