Miniaturised single‐layer bandpass filters using triple and quad‐mode patch resonators
Ke Gong,
Sensen Ma,
Chunfeng Fan
et al.
Abstract:The authors propose miniaturised single‐layer bandpass filters (BPFs) by utilising a kind of new triple‐ and quad‐mode patch resonators. The triple‐mode resonator consists of a shortened square patch and a loaded metallic via at the centre. Characteristics of the new resonator are studied based on the mode analysis, and the first three resonant modes can be controlled well by changing the length of four via arms and the width of the open slot. Thus, a three‐pole BPF can be designed with the new triple‐mode pat… Show more
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