Study of a Conformal UWB Elliptical Monopole Antenna on Flexible Organic Substrate Mounted on Cylindrical Surfaces

Abstract

This paper presents a conformal, compact, omnidirectional, elliptical monopole antenna on Liquid Crystal Polymer (LCP) which is studied mounted on a cylindrical surface and is proven to operate equally well compared to its planar rival. The presented return loss, gain and radiation pattern measurements demonstrate that the characteristics of the antenna are not compromised when the antenna is mounted on cylindrical surfaces of various radii when the direction of curvature is in the transverse direction. The presented study shows that the proposed antenna can be optimized and tested in planar shape and still be trusted to operate equally well under conditions like in wearable electronics, where their planar condition cannot be guaranteed.

A Compact Kapton-Based Inkjet-Printed Multiband Antenna for Flexible Wireless Devices

“…However, they are implemented on rigid FR-4 or similar substrates and are not compatible with conformal requirements. At the same time, antennas designed on flexible substrates such as papers, liquid crystal polymers (LCP) and PET films are reported in [6][7][8], but they are not multiband. In [9][10], two different multiband antennas on paper substrate are presented but without flexibility analysis.…”

Performances study of UWB monopole antennas using half-elliptic radiator conformed on elliptical surface

“…Applications of conformal microstrip structures include airborne, missile applications and commercial applications like automatic cruise control for cars. The antennas used for these applications need to have some additional characteristics such as low weight, thin substrate thickness, and flexibility to conform to non-planar surfaces [5][6][7]. Different antenna designs have been proposed for these applications, they include cylindricalrectangular patch antenna [8], conformal microstrip patch antenna on conical and spherical surfaces [9][10][11], circular disc conformed on cylindrical surface [12], and conformal elliptical monopole on cylindrical surfaces [7].…”

Inkjet-Printed Wideband Antenna on Resin-Coated Paper Substrate for Curved Wireless Devices

“…In addition, they use relatively expensive fabrication processes and materials. Other conformal antennas using AGHT-8 and LCP substrates [11]- [12] were also proposed, but these antennas were not designed for multi-band applications. A few antenna designs have also been reported for paper substrates [13][14][15][16][17][18][19], but the effects of bending the antennas were not discussed.…”