31 August 2005 A new waveguide PBG chemical sensor
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Abstract
In this paper, a novel detection method of sample in liquid is proposed1. The new idea uses improved Low Pass Filter (LPF) Photonic Band Gap (PBG) cell structure which is layout on Printed Circuit Board (PCB) board2-3. The disclosed method in this paper demonstrates the method can be applied to measure the concentration of chemical material with advantages of low cost. The observable frequency response experimental results are presented. We also measure all the scattering parameters for the novel waveguide PBG chemical sensor. The disclosed method in this paper demonstrates the possibility for applying photonic band gap structure in designing a frequency division multi-sensor device. A novel coplanar waveguide (CPW) Frequency Division Multiplexer (FDM) applying Photonic Band Gap (PBG) cell combination is designed for L, S, and C-band bandpass outputs on a FR4 substrate. The observable frequency responses of experimental results are presented. The three-band CPW-PBG FDM can be used effectively as a microwave filter component in monolithic microwave integrated circuits (MMIC) for size reduction and rejection of unwanted frequency.
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Wen-Ching Lee, Wen-Ching Lee, Chih-Chou Lai, Chih-Chou Lai, Shyh-Lin Tsao, Shyh-Lin Tsao, } "A new waveguide PBG chemical sensor", Proc. SPIE 5927, Plasmonics: Metallic Nanostructures and Their Optical Properties III, 59271W (31 August 2005); doi: 10.1117/12.614766; https://doi.org/10.1117/12.614766
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