Design and Comparison of Equiripple Bandpass Filter for Wireless Applications at Varying Bandwidths
Pooja Mehra *
Research Scholar, Suresh Gyan Vihar University, Jaipur, India and JCDM Collage of Engineering, Sirsa-125055, Haryana, India.
Savita Shivani
Gyan Vihar School of Engineering, Jaipur, Rajasthan, India.
R. P. Gupta
MIT, Bikaner, Rajasthan, India.
*Author to whom correspondence should be addressed.
Abstract
This paper presents the design of equiripple programmable bandpass filter for wireless applications. The designed filter covers a wide range of bandwidth compared to what can be achieved by a simple microcontroller. This bandwidth covers a variety of digital wireless applications like TETRA, IS-95, GSM to TACS. The responses of the designed filter are discussed and compared at varying bandwidths. Also the time required to evaluate the performance of designed filter also reduces drastically compared to a simple MAC unit.
Keywords: Attenuation, digital filters, bandpass filter, sampling frequency, transition frequency, filter coefficients, response