English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A compact elliptical function lowpass filter using modified stepped impedance hairpin resonators is proposed. The filter is analyzed from the equivalent lumped-element model using transmission line theory. The model is evaluated with EM simulation with good agreement. For single lowpass filter, the return loss is better than 13 dB from DC to 1.5 GHz where the insertion loss is less than 0.5 dB with considerable pass band ripple, ±0.3 dB. The rejection is greater than -15 dB from 2.0 GHz to 10 GHz. By cascading proposed lowpass filters with different length and width, more rejection in stopband, low insertion loss, broad stopband can be obtained to design an efficient filter for many wireless communication systems.

Modeling of Compact, Broad-stopband Lowpass Filter using Modified Stepped Impedance Hairpin Resonators