Title :
Noise reduction in digital/RF daughter card with electromagnetic bandgap layers
Author :
Rogers, Shawn ; Wu, Xin ; Waltho, Alan ; Xu, David
Author_Institution :
Etenna Corp., Laurel, MD, USA
Abstract :
Small daughterboards representative of radio cards for laptop computers and having digital and RF circuits were fabricated with and without electromagnetic bandgap layers. These layers are shown to significantly reduce power plane noise coupling from the digital circuit to the RF section.
Keywords :
digital integrated circuits; integrated circuit noise; interference suppression; laptop computers; mixed analogue-digital integrated circuits; photonic band gap; radiofrequency integrated circuits; RF circuits; RF daughter card; daughterboards; digital circuits; digital daughter card; electromagnetic bandgap layers; laptop computers; noise reduction; power plane noise coupling; radiocards; Bandwidth; Central Processing Unit; Circuits; Connectors; Noise figure; Noise reduction; Radio frequency; Radiofrequency amplifiers; Surface impedance; System testing;
Conference_Titel :
Electrical Performance of Electronic Packaging, 2004. IEEE 13th Topical Meeting on
Print_ISBN :
0-7803-8667-1
DOI :
10.1109/EPEP.2004.1407586
