Abstract

LOO-YAU, J.R. et al. Spurline structures and its application on microwave coupled line filter. Rev. mex. fis. [online]. 2011, vol.57, n.3, pp. 184-187. ISSN 0035-001X.

We propose and demonstrate experimentally that spurline structures enhance the rejection bandwidth of microwave bandstop coupled line filters. We have investigated the influence of spurlines structures on the rejection bandwidth of a typical microwave coupled line filters (with a notch frequency at 3.0 GHz). Momentum simulations and experimental results show that using spurline structures (designed to present a notch frequency at 2.4 GHz and 3.2 GHz) enhance in high percentage the performance of microwave coupled line filters (CLF).

Keywords : Filters; microwave circuits.