Technical Education Webinar Series
How to Select RF Materials to Minimize Glass Weave Effect on PCB Antennas for mmWave Automotive Radar
Sponsored by: Rogers Corp.
Presented by: Roshin George, Market Development Engineer and Joey Kellner, Market Segment Manager
PCB laminates are typically constructed by impregnating a glass cloth with a polymeric resin. The inconsistency of dielectric constant due to glass cloth construction style is called glass weave effect. At mmWave frequencies as the glass bundle width is comparable to the transmission line width, the effect of glass fiber cloth is substantial. Also, when the antenna structure is manufactured on thin (e.g., 100 µm) PCB laminates, woven glass cloth can cause significant changes in the antenna performance and reduce manufacturing yield. The webinar is a detailed discussion of glass weave PCB laminate construction effects on transmission lines and antennas. The agenda is as follows: