Whittow_Capacitive coupling of microgaps_IET_MAP.pdf (730.41 kB)

Capacitive coupling of discrete micro-sized gaps for RF applications

Download (730.41 kB)
journal contribution
posted on 22.01.2013, 09:16 by William Whittow
This paper investigates the performance of a passive thin metallic object containing micro-sized gaps exposed to a plane wave excitation. This work has potential applications for emerging antenna fabrication techniques where the conducting sections are made from discrete metallic sections. This includes antennas composed from nanomaterials and conventional inkjet printed antennas. Electromagnetic simulations showed metallic sections separated by a micro-sized gap were found to capacitively couple. The coupling can be enhanced by reducing the size of the gap, increasing the width of the metallic object or by filling the gap with a permittivity greater than unity. It should be noted that the DC value of parallel plate capacitor is not strictly valid at radiofrequencies – however, this paper shows that the DC value of capacitance is a reasonable approximation and is useful to understand the behavior.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

WHITTOW, W.G., 2012. Capacitive coupling of discrete micro-sized gaps for RF applications. IET Microwaves, Antennas & Propagation, 6 (13), pp.1481-1486.

Publisher

© Institution of Engineering and Technology (IET)

Version

AM (Accepted Manuscript)

Publication date

2012

Notes

This paper is a postprint of a paper submitted to and accepted for publication in IET Microwaves, Antennas & Propagation and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.

ISSN

1751-8725

Language

en

Exports

Logo branding

Exports