Substrate Integrated Waveguides (SIW) in a Flexible Printed Circuit Board for Millimeter Wave Applications
2009 (English)In: Journal of microelectromechanical systems, ISSN 1057-7157, E-ISSN 1941-0158, Vol. 18, no 1, 154-162 p.Article in journal (Refereed) Published
Substrate integrated waveguides (SIWs) are presented and demonstrated in a flexible printed circuit board (flex PCB) for application in the 77-81 GHz range. The vertical walls of the SIWs presented in this paper consist of multiple electrodeposited metallic wires. The diameters of these wires and the spacing between them are on the order of hundreds of nanometers. Hence, the walls can be seen as continuous metallic walls, and the leakage losses through them become negligible. In turn, the SIWs presented in this paper can operate at higher frequencies compared with previously presented structures that are realized with PCB fabrication processes. The attenuation of the SIWs is comparable to that of microstrip lines on the same sample. The SIWs are successfully demonstrated in a SIW-based slot antenna. The antenna gain along the z-axis (normal-to-plane) was found to be around 2.8 dBi at 78 GHz which is in agreement with the simulated values. [2008-0047]
Place, publisher, year, edition, pages
2009. Vol. 18, no 1, 154-162 p.
Flexible printed circuit boards (flex PCB), millimeter-wave (mm-W) antennas, millimeter waves, polyimide foils, substrate integrated waveguides (SIWs)
Research subject Engineering Science with specialization in Microwave Technology
IdentifiersURN: urn:nbn:se:uu:diva-96879DOI: 10.1109/JMEMS.2008.2009799ISI: 000263123100016OAI: oai:DiVA.org:uu-96879DiVA: diva2:171607