A Bandpass-Bandstop Reconfigurable Filter for Wireless Applications

Volume 5 Issue 3 August - October 2016

Research Paper

A Bandpass-Bandstop Reconfigurable Filter for Wireless Applications

Tulika Sinha* , Arvind Kumar Pandey**, R. K. Chauhan***

* PG Scholar,Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.

** Research Scholar, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.

*** Associate Professor, Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, India.

Sinha, T, Pandey, A, K and Chauhan, R.K. (2016). A Bandpass-Bandstop Reconfigurable Filter for Wireless Applications. i-manager's Journal on Embedded Systems, 5(3), 17-20. https://doi.org/10.26634/jes.5.3.13465

Abstract

In this paper, a novel filter is designed on Taconic RF-35 substrate using two open stubs centrally loaded to stepped impedance resonators (OSL-SIRs). This filter is reconfigured from bandpass-to-bandstop mode using pin diodes. The bandpass filter operates in the range of 2.23-2.59 GHz at 2.41 GHz center frequency and fractional bandwidth of 0.15. On reconfiguration to bandstop mode, the rejection frequencies exist between 2.45-2.47 GHz at 2.46 GHz center frequency. Thus, a single filter can easily switch to two operating modes and adapt itself in spectral interference environment. This filter can be used to isolate WLAN application from other wireless applications.