Measured and simulated electric, magnetic, and thermal field distributions of a patch antenna operating at high power

Author

Reano, Ronald M. ; Thiel, Werner ; Whitaker, John F. ; Katehi, Linda P B

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

2

fYear

2002

fDate

2002

Firstpage

886

Abstract

Electric, magnetic, and thermal field distributions in the near field of a microstrip patch antenna operating at high RF power are experimentally determined. Electro-optic sampling is used to obtain the electric field distribution, magneto-optic sampling provides the magnetic field distribution, and semiconductor bandgap thermometry is used to obtain the thermal field. Measurements are compared with simulations and are found to be in good agreement. From the measurements, it is concluded that dielectric loss, in the substrate of the structure, is the dominant loss mechanism in the antenna.

Keywords

antenna testing; dielectric losses; electric fields; infrared imaging; magnetic fields; microstrip antennas; temperature distribution; 10.403 GHz; dielectric loss; electric field distributions; electro-optic sampling; high RF power antenna; magnetic field distributions; magneto-optic sampling; near field; patch antenna; semiconductor bandgap thermometry; substrate; thermal field distributions; Antenna measurements; Dielectric loss measurement; Dielectric measurements; Dielectric substrates; Electric variables measurement; Magnetic field measurement; Magnetic semiconductors; Patch antennas; Power measurement; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2002. IEEE

Print_ISBN

0-7803-7330-8

Type

conf

DOI

10.1109/APS.2002.1016787

Filename

1016787