Design and Implementation of Low Pass Filter using Microstrip Line

AbstractIn this paper we describe the design of microwave low pass filter by using micro strip layout. Most of the communication system has an RF front end that performs signal processing with RF filters. Micro strip filters provides a low cost means for this. Filters play an important role in microwave applications. Microstrip filter is a two port network used to control the fre-quency response. There is an increasing demand for newer microwave and millimeter-wave systems to meet the emerging telecommunication challenges with respect to size, perform-ance and cost. This paper describes the design of low cost and low insertion loss S-band Low Pass Filter (LPF) by using micro strip layout which works at 2.2 GHz for permittivity 4.4 value with a substrate thickness 0.6 mm for order n=3.After the development of microstrip filter we simulate it by using 3D full wave electromagnetic simulator IE3D. Photolitho-graphic process is used for fabrication and after fabrication final testing had done by using the spectrum analyzer.