Integrated broadband bowtie antenna on transparent substrate

TL;DR

This paper presents the design, fabrication, and characterization of a broadband gold bowtie antenna on transparent glass, demonstrating its resonance behavior, electric field enhancement, and radiation pattern for potential wireless and detection applications.

Contribution

The study introduces a novel integrated broadband bowtie antenna on transparent substrate with experimental validation and detailed analysis of its electromagnetic properties.

Findings

Strong broadband electric field enhancement in feed gap

Dipole-like far-field radiation pattern with large beam width

Resonance frequency depends on bowtie geometry

Abstract

The bowtie antenna is a topic of growing interest in recent years. In this paper, we design, fabricate, and characterize a modified gold bowtie antenna integrated on a transparent glass substrate. We numerically investigate the antenna characteristics, specifically its resonant frequency and enhancement factor. We simulate the dependence of resonance frequency on bowtie geometry, and verify the simulation results through experimental investigation, by fabricating different sets of bowtie antennas on glass substrates utilizing CMOS compatible processes and measuring their resonance frequencies. Our designed bowtie antenna provides a strong broadband electric field enhancement in its feed gap. The far-field radiation pattern of the bowtie antenna is measured, and it shows dipole-like characteristics with large beam width. Such a broadband antenna will be useful for a myriad of applications, ranging from wireless communications to electromagnetic wave detection.