Development of a UHF transponder for geological monitoring of boreholes drilled through ice sheets using phase-sensitive FMCW radar

Amiri, Amin and Brennan, Paul V. and Lok, Lai Bun (2017) Development of a UHF transponder for geological monitoring of boreholes drilled through ice sheets using phase-sensitive FMCW radar. In: 2017 IEEE MTT-S International Microwave Symposium, IMS 2017. Institute of Electrical and Electronics Engineers Inc., USA, pp. 1746-1749. ISBN 9781509063604

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Abstract

This paper presents an active UHF transponder designed for geological monitoring of boreholes drilled through ice sheets. It forms part of a phase-sensitive frequency modulated continuous wave (FMCW) radar system to measure the horizontal position of a borehole with depth. To distinguish the transponder response from stationary clutter, the transponder modulates the received signal before re-transmission to the surface radars. The transponder operates from 292 to 492 MHz with a gain around 18 dB. The transponder employs two novel antennas optimized for deployment within a 15 cm diameter borehole. The simulation and indoor laboratory measurement results of the transponder design are presented.

Item Type: Contribution in Book/Report/Proceedings
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2200/2208
Subjects:
Departments: Faculty of Science and Technology > Engineering
ID Code: 127740
Deposited By: ep_importer_pure
Deposited On: 01 Oct 2018 08:28
Refereed?: Yes
Published?: Published
Last Modified: 16 Feb 2020 06:04
URI: https://eprints.lancs.ac.uk/id/eprint/127740

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