Quarter-wave patch antenna based on BCB polymer for sensor network applications

Abstract

This paper presents a design, fabrication and characterization of a 60 GHz lambda/4-patch antenna compatible with a benzeocyclobutene polymer packaging. The patch and ground plane size are adjusted to reduce the antenna size for matching to the package size. The designed size was 2times2times0.05 mm3. Using electromagnetic simulation, the proposed antenna was optimized by investigating the resonance characteristic and radiation pattern depending on the distance between patch and ground plane and the separation between shorting-pin and feed line. The prototype square patch antenna is manufactured on pyrex glass #7740 and shows a return loss of 30 dB at 65 GHz.