Title :
Experimental Determination of DRW Antenna Phase Center at mm-Wavelengths Using a Planar Scanner: Comparison of Different Methods
Author :
Padilla, Pablo ; Pousi, Patrik ; Tamminen, Aleksi ; Mallat, Juha ; Ala-Laurinaho, Juha ; Sierra-Castañer, Manuel ; Räisänen, Antti V.
Author_Institution :
Radiat. Group (GR), Tech. Univ. of Madrid (Univ. Politec. de Madrid-UPM), Madrid, Spain
Abstract :
A study of the phase center position of dielectric rod waveguide (DRW) antennas (silicon and sapphire) for different millimeter-wave (mm-wave) frequencies is presented in this document. Phase center position is determined using data obtained by planar scanning and analyzed by means of different methods: least squares fit method with and without weighting coefficients and plane wave spectrum (PWS) analysis method. A study of the radiation pattern and phase center position for different mm-wave frequencies is provided and the results of the different methods are presented and compared.
Keywords :
antenna radiation patterns; dielectric waveguides; least squares approximations; millimetre wave antennas; planar antennas; DRW antenna; antennas radiation pattern; dielectric rod waveguide; least squares fit method; millimeter wave frequency; phase center position; planar scanning; plane wave spectrum analysis; Antenna measurements; Antenna radiation patterns; Phase measurement; Probes; Reflector antennas; Silicon; Dielectric rod waveguide (DRW) antennas; millimeter-wave frequencies; phase center determination; planar measurement system; plane wave spectrum (PWS);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2011.2158782
