Visual Detection of Microwave Field Patterns Using Liquid Crystals.
Abstract
Although point by point electric field mapping has been known for many years using point detectors, the method is laborious, time consuming, and produces errors due to the probe disturbances of the actual field and some information may be lost by discrete scanning of the field. The paper represents the results of a theoretical and experimental investigation to use a liquid crystal area detector of the microwave field, where continuous color displays the field intensities of an open-ended waveguide, a parabolic antenna focus and the interference pattern of the field between a source and a reflector. Experimental confirmation of certain phases of the microwave field theory is included. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1970
- Accession Number
- AD0717583
Entities
People
- Hosseih Torkan
Organizations
- Naval Postgraduate School