Design guidelines using characteristic mode theory for improving the bandwidth of PIFAs

Nicole L. Bohannon, Jennifer T. Bernhard

Research output: Contribution to journalArticle

Abstract

It is well known that the bandwidth for a planar inverted-F antenna (PIFA) changes as the ground plane size changes. To gain insight into what causes bandwidth fluctuations, a process for applying characteristic mode theory to the finite ground plane and feed structure was developed. Four different PIFA designs are then evaluated to show how the modal significance of certain modes on the finite ground plane relate to the bandwidth minima and maxima for each PIFA. Next, finite ground planes are altered using the gained insight to enlarge the bandwidth for an antenna with a fixed maximum ground plane size. The goal of this work is to use the developed bandwidth analysis technique to inform the synthesis of PIFAs that require broader bandwidths.

Original languageEnglish (US)
Article number6965575
Pages (from-to)459-465
Number of pages7
JournalIEEE Transactions on Antennas and Propagation
Volume63
Issue number2
DOIs
StatePublished - Feb 1 2015

Keywords

  • Bandwidth
  • characteristic modes
  • finite ground planes
  • planar inverted-F antennas (PIFAs)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Design guidelines using characteristic mode theory for improving the bandwidth of PIFAs'. Together they form a unique fingerprint.

  • Cite this