• Dr. P.K. Khare
• Atul Makrariya

Size miniaturization of microwave filters is highly desirable in the today’s rapid changing communications world. Filters play an important role in most RF and Microwave applications. Currently, the electromagnetic spectrum is limited, and the applications are restricted to occupy just a portion of frequency range without affecting the equipment working out of band and also, without being affected by adjacent devices. Microwave filters are designed using many techniques and procedures. This paper presents the detail survey of the key techniques and initiatives made recently for improved response used in the design of microwave filters. It is the main objective of this paper to offer a unique and comprehensive treatment of RF/microwave filters based on the microstrip structure, providing a link to applications of computer-aided design tools, advanced materials, and technologies. This paper covers basic concept , principles, methods, technology selection criteria and several design procedures.

Microstrip, hairpin line, high-pass, low-pass, Band-pass, Band-stop, lumped element, Fractal, PBG (Photonic Band Gap), DMS and DGS.

"Design Study of recent techniques for Microwave filters: An analysis", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.1, Issue 7, page no.644-650, December-2014, Available :http://www.jetir.org/papers/JETIR1407011.pdf

"Design Study of recent techniques for Microwave filters: An analysis", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.1, Issue 7, page no. pp644-650, December-2014, Available at : http://www.jetir.org/papers/JETIR1407011.pdf