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Water-Immersed Microwave Antennas and Their Application to Microwave Interrogation of Biological Targets
Jacobi, J.H. Larsen, L.E. Hast, C.T.

This paper appears in: Microwave Theory and Techniques, IEEE Transactions on
Publication Date: Jan 1979
Volume: 27, Issue: 1
On page(s): 70- 78
ISSN: 0018-9480
Current Version Published: 2003-01-06

Abstract
This paper describes a method of significantly improving the resolution of systems used for interrogating the spatial variation of permittivity of biosystems at S band. The basic principle employed is to contract the wavelength of the interrogating radiation and to reduce the physical aperture of the interrogating probes by immersing the transmitting antenna, receiving antenna, and the target into a material with a high dielectric constant, namely water. The antenna design is described, and line scans employing transmitted and reflected energy are presented.

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