Na va 1 Resear c h L ab or at or y , Washi n g t on , DC) Microwave Journal (ISSN 0026-2897), vol. 28, Feb. 1985, p. 155-163. L a n q u a g e: E n g 1 i s h . Country of Origin: United States. Country of Publication: Uni t e d S t a t e s Document Type: JOURNAL ARTICLE Most documents available from AIAA Technical Library J o u r n a 1 A n n o u n c e m ent: IA A 8 510 The processing capability of equipment having electronic warfare (EW) applications will be greatly increased on the basis of a utilization of emerging acoustooptic (A-0) technology. Linear processing characteristics and wide bandwidth make this technology attractive for signal processing in dense electromagnetic environments. This paper is concerned with some significant aspects of A- technology applications to receiver systems. The basic principle governing high-speed processing technology is A- 0/Bragg interaction. The Bragg phenomenon involves the interaction of acoustic energy propagating in an elastic, optically transparent medium illuminated with coherent light. Radio frequency signals from the environment are converted to longitudinal acoustic waves. Attention is given to the status of A-0 technology, the A-0 channelizer, the integroferometric spectrum analyzer, the miniature acousto-optic spectrum analyzer, integrated optics, direction finding, correlation processing, optical computation, and optical data correlation. (G.R.) Source of Abstract (Subfile): AIAA/TIS Keywords: *AC0UST0-0PTICS; *ELECTRONIC WARFARE; *RADI0 RECEIVERS; *SIGNAL PROCESSINS; *TECHN0L0GY UTILIZ AT ION; INTEGRATED OPTICS; MULTICHANNEL COMMUNICATION; OPTICAL COMMUNICATION; RADIO DIRECTION FINDERS; SIGNAL ANALYZERS; SPECTRUM ANALYSIS; WIDEBAND COMMONICAT I ON Subject Classification: 7533 Electronics & E1ectri c a1 Engineering (1975 -) Design of mode converters from TE circular om modes in circular waveguides to TE rectangular mo modes in rectangular waveguides for high power applications in the frequency range 1 to 30 GHz. JANZEN, G. Stuttgart Univ. (West Germany). Inst, fuer P1 a s m a f o r s c h u n g . Corp. Source Code: S4355674 Jul. 1984. 16P. Report No.: IPF-84-7 Language: Eng1i sb. Country of Origin: Germany, Federal Republic of. Country of Publication: Germany, Federal Republic of Document Type: REPORT Most documents available from AIAA Technical Library Other Availability; NTIS HC A02/HF AOI J ou rna1 Announcement: STAR8509 A mode converter for transitions from circular symmetric modes to rectangular waveguide modes and vice versa for high power applications in plasma heating
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