Design of Compact Dual-Band BPF Based on SIR using LTCC Technology

Document Type : Original Article

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Egyptian Armed Forces.

Abstract

This paper presents a compact size dual-band BPF embedded in a low temperature cofired ceramics (LTCC) designed to produce two passbands for WiMAX applications. The dual-band BPF center frequencies are 3.5 GHz and 5.8 GHz. A design methodology as well as design guidelines are proposed based on stepped-impedance coupled resonators to produce dual-band response. This dual-band BPF is simulated, optimized and verified. The proposed filter provides better size reduction and at the same time performs superior enhancement in insertion losses and keeps adequate passbands compared to other published dual-band packaged filters.

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