TY - JOUR
T1 - Quasistatic capacitance and frequency-dependent effective permittivity of multilayer microstrip patch antennas
AU - Lowes, P.
AU - Scott, S.
AU - Korolkiewicz, E.
AU - Sambell, A.
PY - 1998/2/1
Y1 - 1998/2/1
N2 - A variational method in the spectral domain is used to determine the quasistatic capacitance of a patch antenna within a nonhomogeneous multilayer structure. The patch is modelled both by a one dimensional analysis using a segment of an infinite transmission line and by a full two-dimensional representation. A new technique is presented for determining the relative permittivity of an equivalent single-layer structure, from which the frequency-dependent effective permittivity is obtained. Results for a number of different antenna structures are given and show good agreement with measured values.
AB - A variational method in the spectral domain is used to determine the quasistatic capacitance of a patch antenna within a nonhomogeneous multilayer structure. The patch is modelled both by a one dimensional analysis using a segment of an infinite transmission line and by a full two-dimensional representation. A new technique is presented for determining the relative permittivity of an equivalent single-layer structure, from which the frequency-dependent effective permittivity is obtained. Results for a number of different antenna structures are given and show good agreement with measured values.
KW - Effective permittivity
KW - Multilayer microstrip patch antennas
KW - Quasistatic capacitance
KW - Variational techniques
KW - Antenna theory
KW - Spectral-domain analysis
KW - Microstrip antennas
UR - http://www.scopus.com/inward/record.url?scp=0031998139&partnerID=8YFLogxK
U2 - 10.1049/ip-map:19981405
DO - 10.1049/ip-map:19981405
M3 - Article
AN - SCOPUS:0031998139
VL - 145
SP - 75
EP - 79
JO - IEE Proceedings: Microwaves, Antennas and Propagation
JF - IEE Proceedings: Microwaves, Antennas and Propagation
SN - 1350-2417
IS - 1
ER -
