Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
446470 | AEU - International Journal of Electronics and Communications | 2010 | 5 Pages |
Abstract
A simple design of a sharp-rejection microstrip bandpass (BPF) filter is presented. By creating multiple transmission zeros in the lower and upper stopbands, sharp rejection characteristics are obtained. The basic filter unit consists of a single parallel coupled-line section and an open-ended stub. A lossless transmission line model approach is used to derive the design equations for frequency responses and transmission zero positions. The bandwidths are controllable by the zero locations that in turn are controlled by varying the impedances of the configuration. To validate theoretical predictions, two prototype BPFs operating at lower band 2.4 GHz of WLAN are fabricated in microstrip form.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Vamsi Krishna Velidi, Subrata Sanyal,