Dr. Hedley J. Hansen Profile

Dr. Hedley J. Hansen

at Defence Science and Technology Organisation

SPIE Involvement:

Author

Proceedings Article | 21 December 2007 Paper

Feasibility of a multipurpose transceiver module for phased array radar and EW applications using RFIC technology

Said Al-Sarawi, Hedley Hansen, Yingbo Zhu

Proceedings Volume 6798, 679809 (2007) https://doi.org/10.1117/12.769202

KEYWORDS: Receivers, Radar, Digital signal processing, Transceivers, CMOS technology, Antennas, Signal processing, Phased arrays, Filtering (signal processing), Image filtering

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Proceedings Article | 11 January 2007 Paper

Modelling of coplanar waveguide transmission lines in multiple metal layer processes

E. Heading, H. Hansen, M. Parker

Proceedings Volume 6414, 64141R (2007) https://doi.org/10.1117/12.695676

KEYWORDS: Metals, Signal attenuation, Device simulation, Modeling, Waveguides, Electromagnetism, Computer aided design, CMOS technology, Waveguide modes, Microwave radiation

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Proceedings Article | 5 January 2006 Paper

Low cost mm-wave Doppler/FMCW transceivers for ground surveillance applications

H. Hansen, R. Lindop, D. Majstorovic

Proceedings Volume 6035, 60350M (2006) https://doi.org/10.1117/12.638889

KEYWORDS: Radar, Doppler effect, Transceivers, Antennas, Signal to noise ratio, Surveillance, Integrated circuits, Signal detection, Signal processing, Modulation

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Proceedings Article | 28 February 2005 Paper

Microstrip broadband phased array elements

Hedley Hansen, Michael Parker, Leonard Hall

Proceedings Volume 5649, (2005) https://doi.org/10.1117/12.582295

KEYWORDS: Antennas, Phased arrays, Sensors, Dielectrics, Scattering, Satellite communications, Broadband telecommunications, Telecommunications, Light scattering, Sensing systems

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Proceedings Article | 28 February 2005 Paper

High-frequency transmission line transitions

Leonard Hall, Hedley Hansen, Derek Abbott

Proceedings Volume 5649, (2005) https://doi.org/10.1117/12.583414

KEYWORDS: Scattering, Waveguides, Antennas, Electromagnetism, Inductance, Software development, Signal attenuation, Biomedical engineering, Electronics engineering, Warfare

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Proceedings Article | 30 March 2004 Paper

2D scanning Rotman lens structure for smart collision avoidance sensors

Leonard Hall, Hedley Hansen, Derek Abbott

Proceedings Volume 5274, (2004) https://doi.org/10.1117/12.527948

KEYWORDS: Antennas, Sensors, Computer aided design, Lens design, Collision avoidance, Transformers, Radar, Dielectrics, Biomedical engineering, Electronics engineering

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Proceedings Article | 30 March 2004 Paper

The design of a broadband microstrip patch sensor for high-frequency remote sensing operations

Hedley Hansen, Leonard Hall, Tien Cho Shum, Wei Seng Seow

Proceedings Volume 5274, (2004) https://doi.org/10.1117/12.524301

KEYWORDS: Sensors, Antennas, Dielectrics, Remote sensing, Waveguides, Remote sensing system design, Integrated circuit design, Satellite communications, Transformers, Chemical elements

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Proceedings Article | 14 November 2002 Paper

Frequency-scanned mm-wave sensors for imaging applications

Hedley Hansen, Michael Parker, Marina Ozerova, John Kot, Doug Hayman

Proceedings Volume 4935, (2002) https://doi.org/10.1117/12.469411

KEYWORDS: Waveguides, Sensors, Dielectrics, Optical signal processing, Receivers, Antennas, Silicon, Acousto-optics, Bragg cells, Imaging systems

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Proceedings Article | 14 November 2002 Paper

Rotman lens for mm-wavelengths

Leonard Hall, Hedley Hansen, Derek Abbott

Proceedings Volume 4935, (2002) https://doi.org/10.1117/12.469727

KEYWORDS: Antennas, Lens design, Sensors, Radar, Signal attenuation, Signal to noise ratio, Control systems, Microwave radiation, Adaptive control, Interference (communication)

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Proceedings Article | 14 November 2002 Paper

Trade-offs for wireless transcutaneous rf communication in biotelemetric applications

Inke Pitz, Leonard Hall, Hedley Hansen, Vijay Varadan, Chris Bertram, Simon Maddocks, Stefan Enderling, David Saint, Said Al-Sarawi, Derek Abbott

Proceedings Volume 4937, (2002) https://doi.org/10.1117/12.476427

KEYWORDS: Antennas, Polymers, Acoustics, Actuators, Transducers, Ferroelectric polymers, Wave propagation, Polymer thick film flex circuits, Polymeric actuators, RF communications

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Proceedings Article | 14 November 2002 Paper

Remote gas detection using millimeter-wave spectroscopy for counter bioterrorism

Matthew Szlazak, Seng Yiep Yam, Dejan Majstorovic, Hedley Hansen, Derek Abbott

Proceedings Volume 4937, (2002) https://doi.org/10.1117/12.476109

KEYWORDS: Receivers, Spectroscopy, Molecules, Waveguides, Signal detection, Atmospheric sensing, Absorption, Molecular spectroscopy, Remote sensing, Network security

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Proceedings Article | 19 November 2001 Paper

Monolithic fabrication of Rotman lenses

Leonard Hall, Hedley Hansen, Derek Abbott

Proceedings Volume 4593, (2001) https://doi.org/10.1117/12.448842

KEYWORDS: Antennas, Lens design, Lenses, Prototyping, Manufacturing, Electromagnetic simulation, Telecommunications, Matrices, Staring arrays, Sensors

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Proceedings Article | 21 August 2001 Paper

Microstrip-based Rotman lens for mm-wave sensing operations

Leonard Hall, Hedley Hansen, Derek Abbott

Proceedings Volume 4373, (2001) https://doi.org/10.1117/12.438143

KEYWORDS: Antennas, Sensors, Collision avoidance, Lens design, Signal to noise ratio, Radiometry, Telecommunications, Matrices, Staring arrays, Ka band

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