NI AWR Design Environment Application Note Now Available:
“How to Improve
Second-Harmonic Passband Rejection Microstrip Side-Coupled Filters”
EL SEGUNDO, California – March 2, 2015
NI (formerly AWR Corporation) released a new
NI AWR Design Environment application note, “Improving
the Second-harmonic Pass Band Rejection of Microstrip Side-coupled Filters.” Because of their low cost and
easy manufacturability, side-coupled filters constructed from printed-circuit board (PCB)-based microstrip are
widely used throughout the industry. One of the main drawbacks of the side-coupled filter is its limited
rejection of the second harmonic. This application note demonstrates a solution that mitigates this problem
through the introduction of notch-filter elements that improve the overall rejection of side-coupled filters at
the second harmonic without significantly affecting the filter passband behavior.
The application note (English, Japanese and Chinese versions available) can be viewed and downloaded at
About AWR, A National Instruments
AWR, the innovation leader in high-frequency electronic design automation (EDA) software, is a National Instruments
Company. AWR’s software portfolio of EDA solutions dramatically reduces development time and cost for products
employed in wireless, high-speed wired, broadband, aerospace and defense, and electro-optical applications. Learn
more at www.awrcorp.com.
AWR, National Instruments, NI and ni.com are trademarks of National Instruments. Other product and company
names listed are trademarks or trade names of their respective companies.
Vice President of Marketing
Posted March 2, 2015