TY - GEN
T1 - Towards a microstrip antenna on synthetic high-dielectric constant substrates
AU - Prodromakis, Themistoklis
AU - Papavassiliou, Christos
PY - 2005/1/3
Y1 - 2005/1/3
N2 - This work is an investigation into the dielectric properties of multilayered substrates. We focus on slow-wave polarization modes, known to occur in some layered substrates. We envisage exploiting the high resonant dielectric constant to obtain increased directivity of patch antennas. Issues such as reduced electrical efficiency due to a greater number of back-lobes, directed into the substrate, are also discussed. Simulated results indicate that relative effective dielectric constants exceeding values of 100 are possible at relatively low loss tangents even with very conductive substrates. The main effect of substrate conductivity is the definition of a frequency band in which the enhanced directivity is observed. Furthermore, reflecting schemes are proposed to further enhance antenna efficiency.
AB - This work is an investigation into the dielectric properties of multilayered substrates. We focus on slow-wave polarization modes, known to occur in some layered substrates. We envisage exploiting the high resonant dielectric constant to obtain increased directivity of patch antennas. Issues such as reduced electrical efficiency due to a greater number of back-lobes, directed into the substrate, are also discussed. Simulated results indicate that relative effective dielectric constants exceeding values of 100 are possible at relatively low loss tangents even with very conductive substrates. The main effect of substrate conductivity is the definition of a frequency band in which the enhanced directivity is observed. Furthermore, reflecting schemes are proposed to further enhance antenna efficiency.
UR - http://www.scopus.com/inward/record.url?scp=33846190255&partnerID=8YFLogxK
U2 - 10.1109/HFPSC.2005.1566362
DO - 10.1109/HFPSC.2005.1566362
M3 - Conference contribution
AN - SCOPUS:33846190255
SN - 078039500X
SN - 9780780395008
T3 - IEEE High Frequency Postgraduate Student Colloquium
SP - 57
EP - 61
BT - IEEE MTT/ED/AP/LEO Joint Chapter United Kingdom and Republic of Ireland Section - The Tenth High Frequency Postgraduate Student Colloquium
T2 - 10th High Frequency Postgraduate Student Colloquium
Y2 - 5 September 2005 through 6 September 2005
ER -