A Novel Dual-Mode Microstrip Bandpass Filter with a Pair of Equal Crossed Slots

Abstract:

A novel dua1-mode microstrip bandpass filter with two triangle corner cuts and a pair of equal crossed slots is proposed. The performance of the designed filter is studied in detail. The proposed filter structure uses a single patch without coupling gaps. The center frequency is about 2.11GHz. The 3dB relative bandwidth is 9.95%, and the minimum insertion loss in the passband is 0.12dB. Two transmission zeros can be implemented on both sides of the passband. The insertion loss is l0dB within 2.04-2.18GHz. The effect on the filter’s performance by changing filter parameters is studied. The results show that this new filter can provide a low loss and make miniaturization easy.

• Periodical: Applied Mechanics and Materials (Volumes 236-237)
• Pages: 1383-1388
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.236-237.1383
• Online since: November 2012
• Authors: Su Ping Li, Cheng Guo Chang, Wei Wu
• Keywords: Bandpass Filter (BPF), Dual-Mode, Patch Resonator, Transmission Zero

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