[案例]基于IPD的5G零点可控带通滤波器

In this letter, a miniaturized bandpass filter (BPF) with controllable transmission zero (TZ) based on one lumped T-section is proposed. To enhance rejection in the BPF, a modified T-section circuit is introduced to generate a controllable TZ that can be readily adjusted by the LC values. To validate the performance, the proposed BPF is fabricated using integrated passive device technology on silicon. The measurement results show that the achievable bandwidth covers 2.4–2.5 GHz, with an insertion loss less than 2.6 dB and a measured return loss less than −15 dB. The fabricated BPF has a compact size of 1.3 mm × 0.8 mm (i.e., 0.0113 λ0 × 0.0069 λ0). The simulated and measured results of the BPF are in reasonably good agreement.

该成果使用了法动科技射频EDA工具-UltraEM！

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