Electromagnetic Band Gap Loaded Square Waveguide Band-Pass Filter for Dual-Polarized Application

• 作者: Yi-Ming Tang
• 来源期刊: 无线工程与技术(英文)
• 学科: 医学
• 关键词: Electromagnetic Band Gap (EBG) BAND-PASS Filter (BPF) Dual-Polarized Square WAVEGUIDE
• 年，卷（期）: 2012,（4）
• 页码范围: 210-213
• 页数: 4页
• 分类号: R73

摘要

An Electromagnetic Band Gap (EBG) loaded square waveguide Band-Pass Filter (BPF) is proposed in this paper. It’s simply composed by symmetrically loading periodical metal diaphragms on each wall of a square waveguide. The influences of insert sizes and loading periods on the overall BPF performances are analyzed. Experimental results agree well with those predicted. 6 GHz pass-band with insert loss less than 1 dB, 2.5 GHz stop-band and larger than 25 dB polarization isolation can be obtained. The BPF can be applied in dual-polarized waveguide-based antenna-feed systems.