Bibliographic Citation
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| Title | A local field study of a water-immersed microwave antenna array for medical imagery and therapy |
| Creator/Author | Gou, T.C. ; Guo, W.W. ; Larsen, L.E. |
| Publication Date | 1984 Aug 01 |
| OSTI Identifier | OSTI ID: 6047119 |
| Other Number(s) | Journal ID: CODEN: IETMA |
| Resource Type | Journal Article |
| Resource Relation | Journal Name: IEEE Trans. Microwave Theory Tech.; (United States); Journal Volume: MTT-32:8 |
| Research Org | John Hopkins University Applied Physics Laboratory, Laurel, MD 20707 |
| Subject | 62 RADIOLOGY AND NUCLEAR MEDICINE; DIAGNOSTIC TECHNIQUES; MICROWAVE RADIATION; MICROWAVE EQUIPMENT; ANTENNAS; THERAPY; AMPLITUDES; CONFIGURATION; GHZ RANGE 01-100; IMAGE SCANNERS; PHASE SHIFT; SPATIAL RESOLUTION; WATER; WAVELENGTHS; ELECTRICAL EQUIPMENT; ELECTROMAGNETIC RADIATION; ELECTRONIC EQUIPMENT; EQUIPMENT; FREQUENCY RANGE; GHZ RANGE; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; RADIATIONS; RESOLUTION |
| Description/Abstract | A water-immersed microwave array system for medical imaging is described, and a theoretical analysis of its local field pattern is presented. The theoretical study also applies to similar systems for medical therapy purposes. It is shown that, using a technique of phase and amplitude conjugations, a satisfactory three-dimensional focusing for targets located in the neighborhood of the array may be achieved. The focusing resolutions for transverse and longitudinal directions are approximately lambda/2 and lambda, respectively, where lambda is the wavelength in the dielectric. By increasing the element spacing of the array, the resolutions can be as good as 5.3 and 11.7 mm, respectively, at the operating frequency of 3 GHz. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: Pages: 844-854 |
| System Entry Date | 2008 Feb 07 |
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Last Updated: 11/19/2009