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Compact and Low Loss Dual-Band Bandpass Filter Using Pseudo-Interdigital Stepped Impedance Resonators for WLANs

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3 Author(s)
Min-Hang Weng ; Nat. Nano Device Labs., Tainan ; Hung-Wei Wu ; Su, Yan-Kuin

In this letter, pseudo-interdigital stepped impedance resonators (PI-SIRs) are used to design the bandpass filter (BPF) with dual-band response. By tuning the impedance ratio (K) and physical length of SIRs, the BPF has good dual-passband performances at 2.4/5.2GHz and high isolation between the two passbands. It is shown that the dual-band BPF has a smaller area and lower insertion loss in comparison of previous works. Good agreement is shown between the full-wave electromagnetic simulation and the measurement

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:17 ,  Issue: 3 )