TAILIEUCHUNG - Photonic band gap structure for improve the performance of band stop filters

In this paper we have designed two new compact Photonic Band Gap Structures, shows the properties of Band stop filters. Photonic Band gap filters are designed on central frequencies and . These Photonic filters are stable and observable. Also used photonic band gap structure on the filter surfaces, have been provided information about the increasing bandwidth up to 30% of band stop filters. | International Journal of Computer Networks and Communications Security C VOL. 2, NO. 2, FEBRUARY 2014, 82–86 Available online at: ISSN 2308-9830 N C S Photonic band gap structure for improve the Performance of Band stop filters Pooja Sahoo1 and . Singhal2 1, 2 Department of Electronics & communication Engineering, Madhav Institute of Technology & Science, Gwalior (), India E-mail: ABSTRACT In this paper we have designed two new compact Photonic Band Gap Structures, shows the properties of Band stop filters. Photonic Band gap filters are designed on central frequencies and . These Photonic filters are stable and observable. Also used photonic band gap structure on the filter surfaces, have been provided information about the increasing bandwidth up to 30% of band stop filters. To use of the PBG filters, the broad stop band has been obtained, slow wave factor increased, com-pensate for fabrication of tolerance has been improved and the unit elements of the band stop filter with open-circuited stub has been redundant and more compact configuration obtained. Keywords: PBG (Photonic Band Gap), Band Stop Filter (BSF), Printed Circuit Board (PCB), Defected Ground Structure (DGS), Computer Simulation Technology Software (CST) and Spectrum Analyzer. 1 INTRODUCTION The photonic band-gap (PBG) [Yu chen et al., 2008] structures are effective in microwave applications that provide an effective control of electromagnetic (EM) waves along specific direction and performance. Photonic band gap structures for microstrip line have been topic of research in recent year. The term PBG is introduced as a structure which influence or even changes the electromagnetic properties of materials. The periodic structure created in materials such as substrate or metals [yang et al. 1999]. The PBG structure provides a certain frequency bands which cannot propagate. PBG structures are most widely used in various applications like

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