Abstract
We study imaging properties of a microwave scanning probe consisting of a thin slit aperture in the waveguide endwall. We perform vector measurements of the near-field reflectivity of test samples (conducting dot, stripe, half-plane, plane) at various probe-sample separations and orientations. The experimental results for small objects agree fairly well with analytical calculations and computer simulations and may be described by a quasistatic model. Experimental results for extended conducting objects show strong deviations from a quasistatic model probably due to excitation of the surface waves. Experimental results show several peculiar near-field features which has not been properly addressed in the context of near-field imaging, namely, (i) strong collimation of the fields away from the probe up to a distance equal to the probe width, (ii) very weak phase dependence on distance, (iii) excitation of surface waves above conducting surfaces.
Original language | English |
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Title of host publication | 21st IEEE Convention of the Electrical and Electronic Engineers in Israel, Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 33-36 |
Number of pages | 4 |
ISBN (Electronic) | 0780358422, 9780780358423 |
DOIs | |
State | Published - 2000 |
Event | 21st IEEE Convention of the Electrical and Electronic Engineers in Israel, IEEEI 2000 - Tel-Aviv, Israel Duration: 11 Apr 2000 → 12 Apr 2000 |
Publication series
Name | 21st IEEE Convention of the Electrical and Electronic Engineers in Israel, Proceedings |
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Conference
Conference | 21st IEEE Convention of the Electrical and Electronic Engineers in Israel, IEEEI 2000 |
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Country/Territory | Israel |
City | Tel-Aviv |
Period | 11/04/00 → 12/04/00 |
Bibliographical note
Publisher Copyright:©2000 IEEE.