Abstract

Introduction: In this paper, we explore the world of flexible patch antennas, specifically focusing on their horizontal V-folding percentages. The folding of these antennas plays a crucial role in the realm of wireless communication.

Methods: Our V-folding antenna is ingeniously crafted for seamless communication with objects featuring sharp curves. What sets our study apart is the exploration of the effects of V-folding percentages on the current distribution, a novel approach. We closely monitored the surface current distribution of the V-folded antenna, considering the percentage-wise impact along with the influence of the ground plane. Delving deeper, we scrutinized changes in ground plane size and drew comparisons between a standard ground and a resized one in the context of the V-folded patch antenna.

Results: The resized ground plane outshone its normal counterpart, exhibiting superior performance. With the normal ground, the FPA operated at 1.42 GHz and 4.485 GHz. Post-resizing the ground, it showcased commendable stability in retaining the V-folding frequency shift.

Conclusion: Crafting the antenna's structure was a meticulous process accomplished through the use of CST Microwave Studio software, and we validated our design using a vector network analyzer.

Keywords: Flexible patch antenna, V-folding, percentage folding, ground effect, surface current distribution, kapton.