A wideband correlation and detection module based on substrate-integrated waveguide technology for radio astronomy applications

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URI: http://hdl.handle.net/10902/15608
ISSN: 0018-9480
ISSN: 1557-9670
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Autoría
Cano de Diego, Juan LuisAutoridad Unican; Villa Benito, EnriqueAutoridad Unican; Mediavilla Sánchez, ÁngelAutoridad Unican; Artal Latorre, EduardoAutoridad Unican
Fecha
2018-06
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© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Publicado en
IEEE Transactions on Microwave Theory and Techniques, 2018, 66(6), 3145-3152
Editorial
Institute of Electrical and Electronics Engineers Inc.
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Palabras clave
Correlation
Polarimeter
Radio astronomy
Radiometer
Substrate-integrated waveguide (SIW)
Wideband
Resumen/Abstract
A wideband (30% relative bandwidth) correlation and detection module based on substrate-integrated waveguide (SIW) technology intended for a radio astronomy polarimeter is presented. The SIW circuit is a six-port network with two input ports that are correlated in two hybrid couplers and their corresponding output signals are routed to Schottky diode detectors, which are designed using microstrip technology and assembled within the same system. The designed SIW structure includes hybrid couplers, power dividers, a 90° phase shifter, and 90° bends, providing a real implementation of a functional system with improved bandwidth performance from 35 to 47 GHz. Experimental results are in concordance with simulations, and they validate the module operation for the proposed application.
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