Summary

International Symposium on Antennas and Propagation

2008

Session Number:1C06

Session:

Number:1C06-3

Millimetre-wave active integrated antennas with electromagnetic band-gap (EBG) superstrate lens

Maria-Anna Setta,  Clive G. Parini,  

pp.-

Publication Date:2008/10/27

Online ISSN:2188-5079

DOI:10.34385/proc.35.1C06-3

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Summary:
This paper presents a study of millimetre-wave active integrated antennas (AIAs) for imaging applications. The aim of this research work was firstly to develop an in-house FD-TD code that can accurately model these antennas and secondly to investigate how they can be successfully included in a tightly packed millimetre-wave imaging array (IA). The chosen antenna element is a slot-ring antenna operating at around 90 GHz. The active element integrated with the slot-ring is a Schottky diode. The integrated configuration forms a compact millimetre-wave receiver. It operates dually as an antenna and a quasi-optical mixer and hence it can form the basic element of a millimetre-wave IA. Although substrate lenses have been previously used to alleviate surface-wave coupling phenomena, in this work the lenses were replaced by Electromagnetic Band Gap structures (EBGs). The passive designs were simulated by CST Microwave Studio TM and the active designs by a customized in-house FD-TD code in Fortran 90.