Confirmation of Slow-Waves in a Crosstie Overlay Coplanar Waveguide and Its Application to Band-Reject Gratings and Reflectors.

reportActive / Technical Report | Accession Number: ADA194981 | Open PDF

Abstract:

The slow-wave propagation along a new crosstie overlay slow-wave coplanar waveguide has been investigated both theoretically and experimentally. A slow-wave factor observed agrees reasonably well with the theoretical prediction. This structure is used from construction of a frequency-selective distributed Bragg reflectors DBRs with a compact size. The effect of conductor loss is considered. A doubly-periodic band-reject grating has been created from the DBRs and the band-reject phenomenon was observed as predicted. To improve passband characteristics of the grating, a monolithic slow-wave Chebyshev reflector was designed and fabricated. Agreement between theory and preliminary experiment has been confirmed. Based on this theory, a new slow-wave reflector with improved characteristics is proposed and examined. A respectable slow-wave factor and a drastic reduction of conductor loss have been obtained.

Author(s):
Wang, Te-hui ; Itoh, Tatsuo
Author Organization(s):
TEXAS UNIV AT AUSTIN DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
Descriptive Note:
Technical rept.,
Supplementary Note:
DOI: 10.21236/ADA194981
Pagination:
0168

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ARO-25045.1-EL
Contract/Grant Number(s):
DAAL03-88-K-0005
Monitor Series:
25045.1-EL
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.7_Experimentation; JCA_5.1.1_Establish and Maintain Unity of Effort with Mission Partners; JCA_5.1_Organize; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_1.2.5_Lessons Learned; JCA_4.6_Engineering
Modernization Areas:
Microelectronics
Communities of Interest:
Advanced Electronics
Descriptor(s):
BRAGG ANGLE, DISTRIBUTION, FREQUENCY, FREQUENCY BANDS, MATHEMATICAL PREDICTION, OVERLAYS, PROPAGATION, REFLECTORS, SELECTION, SIZES(DIMENSIONS), SLOW WAVE CIRCUITS, GRATINGS(SPECTRA), BANDSTOP FILTERS, BRAGG ANGLE
Field(s)/Group(s):
Electrical and Electronic Equipment
Keyword(s):
Coplanar Waveguides, Crosstile circuits, DBR(Distributed Bragg Reflectors), Bragg reflectors, Chebyshev Reflectors
Report Date:
1988 Mar 01