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Spiral Microstrip Antenna with ResistanceA spiral microstrip antenna having resistor elements embedded in each of the spiral arms is provided. The antenna is constructed using a conductive back plane as a base. The back plane supports a dielectric slab having a thickness between one-sixteenth and one-quarter of an inch. A square spiral, having either two or four arms, is attached to the dielectric slab. Each arm of the spiral has resistor elements thereby dissipating an excess energy not already emitted through radiation. The entire configuration provides a thin, flat, high gain, wide bandwidth antenna which requires no underlying cavity. The configuration allows the antenna to be mounted conformably on an aircraft surface.
Document ID
19980020159
Acquisition Source
Langley Research Center
Document Type
Other - Patent
Authors
Shively, David G. (NASA Langley Research Center Hampton, VA United States)
Date Acquired
August 17, 2013
Publication Date
January 27, 1998
Subject Category
Communications And Radar
Report/Patent Number
Patent Application Number: US-Patent-Appl-SN-633713
Patent Application Number: US-Patent-Appl-SN-269268
Patent Number: US-Patent-5,712,647
Patent Number: NASA-Case-LAR-15088-2
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-5,712,647|NASA-Case-LAR-15088-2
Patent Application
US-Patent-Appl-SN-633713|US-Patent-Appl-SN-269268

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