Radiation efficiency and surface waves for patch antennas on inhomogeneous substrates

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Radiation efficiency and surface waves for patch antennas on inhomogeneous substrates. / Kristensson, Gerhard; Waller, Peter; Derneryd, Anders.

In: IEE Proceedings - Microwaves Antennas and Propagation, Vol. 150, No. 6, 2003, p. 477-483.

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TY - JOUR

T1 - Radiation efficiency and surface waves for patch antennas on inhomogeneous substrates

AU - Kristensson, Gerhard

AU - Waller, Peter

AU - Derneryd, Anders

PY - 2003

Y1 - 2003

N2 - Surface wave characteristics and radiation efficiency are calculated for a patch antenna with a given current distribution and located on top of an inhomogeneous, isotropic substrate. The substrate is infinite in the lateral directions and inhomogeneous with respect to the height coordinate. The surface waves in the substrate are analysed using the propagator technique and residue calculus. The propagators and the residues are found by solving two sets of systems of ordinary differential equations (ODEs). Several dispersion curves of the surface waves for inhomogeneous substrates are calculated. The radiation efficiency is compared with the corresponding quantities of a printed antenna on a homogeneous substrate.

AB - Surface wave characteristics and radiation efficiency are calculated for a patch antenna with a given current distribution and located on top of an inhomogeneous, isotropic substrate. The substrate is infinite in the lateral directions and inhomogeneous with respect to the height coordinate. The surface waves in the substrate are analysed using the propagator technique and residue calculus. The propagators and the residues are found by solving two sets of systems of ordinary differential equations (ODEs). Several dispersion curves of the surface waves for inhomogeneous substrates are calculated. The radiation efficiency is compared with the corresponding quantities of a printed antenna on a homogeneous substrate.

U2 - 10.1049/ip-map:20030617

DO - 10.1049/ip-map:20030617

M3 - Article

VL - 150

SP - 477

EP - 483

JO - IEE Proceedings: Microwaves, Antennas and Propagation

T2 - IEE Proceedings: Microwaves, Antennas and Propagation

JF - IEE Proceedings: Microwaves, Antennas and Propagation

SN - 1350-2417

IS - 6

ER -