Radar & THz

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The Radar & Terahertz (THz) technology area contains advances in detection and imaging using THz waves developed for security, biomedical, and communications applications. Sandia has been at the forefront of new radar breakthroughs for more than 30 years, including historic developments in Synthetic Aperture Radar (SAR).   

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Twistact
Twistact

A fundamentally new type of rotary electrical contact that addresses...

Direct Detector for Terahertz Radiation
Direct Detector for Terahertz Radiation

A direct detector that is a depletion mode field-effect transistor...

Patent Title Patent Number Grant Date
Observer systems and methods US12487106B1 12/02/2025
Radar transmit bandwidth augmentation US12436252B2 10/07/2025
Radar transmit bandwidth augmentation US12436251B1 10/07/2025
Modular multi-angle synthetic aperture radar sensor on a track US12416721B1 09/16/2025
Planar dual-polarization antenna US12394913B1 08/19/2025
Offset-fed reflector parallel plate antenna apparatus US12341250B1 06/24/2025
Radar transmit bandwidth augmentation US12061249B1 08/13/2024
Photoconductive metasurface-based ultrafast device US11749694B1 09/05/2023
Multi-channel high-speed converter clock synchronization with autonomous coherent deterministic latency US11469765B1 10/11/2022
Instantaneous ultra-wideband sensing using frequency-domain channelization US10788568B1 09/29/2020
Instantaneous ultra-wideband sensing using frequency-domain channelization US10788568B1 09/29/2020
Instantaneous ultra-wideband sensing using frequency-domain channelization US10788568B1 09/29/2020
De-tuning tolerant loop antenna US10756434B1 08/25/2020
De-tuning tolerant loop antenna US10756434B1 08/25/2020
De-tuning tolerant loop antenna US10756434B1 08/25/2020
In-situ active impedance characterization of scanned array antennas US10720703B2 07/21/2020
In-situ active impedance characterization of scanned array antennas US10720703B2 07/21/2020
In-situ active impedance characterization of scanned array antennas US10720703B2 07/21/2020
Apparatus, system and method for highlighting activity-induced change in multi-pass synthetic aperture radar imagery US10698104B1 06/30/2020
Apparatus, system and method for highlighting activity-induced change in multi-pass synthetic aperture radar imagery US10698104B1 06/30/2020
Apparatus, system and method for highlighting activity-induced change in multi-pass synthetic aperture radar imagery US10698104B1 06/30/2020
Ultra-wideband mutual coupling compensation of active electronically scanned arrays in multi-channel radar systems US10615495B1 04/07/2020
Ultra-wideband mutual coupling compensation of active electronically scanned arrays in multi-channel radar systems US10615495B1 04/07/2020
Ultra-wideband mutual coupling compensation of active electronically scanned arrays in multi-channel radar systems US10615495B1 04/07/2020
Co-notch and independent windowing to mitigate interference in SAR-based imagery US10591582B1 03/17/2020
Co-notch and independent windowing to mitigate interference in SAR-based imagery US10591582B1 03/17/2020
Co-notch and independent windowing to mitigate interference in SAR-based imagery US10591582B1 03/17/2020
Apparatus, system and method for highlighting anomalous change in multi-pass synthetic aperture radar imagery US10535127B1 01/14/2020
Apparatus, system and method for highlighting anomalous change in multi-pass synthetic aperture radar imagery US10535127B1 01/14/2020
Apparatus, system and method for highlighting anomalous change in multi-pass synthetic aperture radar imagery US10535127B1 01/14/2020
Spectral replacement to mitigate interference for multi-pass synthetic aperture radar US10495750B1 12/03/2019
Spectral replacement to mitigate interference for multi-pass synthetic aperture radar US10495750B1 12/03/2019
Spectral replacement to mitigate interference for multi-pass synthetic aperture radar US10495750B1 12/03/2019
Waveform warping for general frequency-modulated radar waveforms US10473755B1 11/12/2019
Waveform warping for general frequency-modulated radar waveforms US10473755B1 11/12/2019
Waveform warping for general frequency-modulated radar waveforms US10473755B1 11/12/2019
Vehicle track detection in synthetic aperture radar imagery US10467474B1 11/05/2019
Vehicle track detection in synthetic aperture radar imagery US10467474B1 11/05/2019
Vehicle track detection in synthetic aperture radar imagery US10467474B1 11/05/2019
Reduced-bias multi-resolution coherent change detection US10345440B1 07/09/2019
Reduced-bias multi-resolution coherent change detection US10345440B1 07/09/2019
Spectral notch interference mitigation for stretch processing synthetic aperture radar US10330786B1 06/25/2019
Spectral notch interference mitigation for stretch processing synthetic aperture radar US10330786B1 06/25/2019
Dual-band GPS antenna with horizontal polarization US10290950B1 05/14/2019
Apodization of spurs in radar receivers using multi-channel processing US10288729B2 05/14/2019
Dual-band GPS antenna with horizontal polarization US10290950B1 05/14/2019
Apodization of spurs in radar receivers using multi-channel processing US10288729B2 05/14/2019
Doppler-assisted sensor fusion US10267895B1 04/23/2019
Doppler-assisted sensor fusion US10267895B1 04/23/2019
Small mover target detection in synthetic aperture radar imagery US10254399B1 04/09/2019
Small mover target detection in synthetic aperture radar imagery US10254399B1 04/09/2019
In-situ active impedance characterization of scanned array antennas US10218068B1 02/26/2019
In-situ active impedance characterization of scanned array antennas US10218068B1 02/26/2019
Robust power detector for wideband signals among many single tone signals US10171189B2 01/01/2019
Robust power detector for wideband signals among many single tone signals US10171189B2 01/01/2019
Antenna array with low Rx and Tx sidelobe levels US10062972B1 08/28/2018
VMD fused radar—a hyper-volumetric ultra-low NAR sensor system US10062255B1 08/28/2018
Antenna array with low Rx and Tx sidelobe levels US10062972B1 08/28/2018
VMD fused radar—a hyper-volumetric ultra-low NAR sensor system US10062255B1 08/28/2018
Superpixels for improved structure and terrain classification using multiple synthetic aperture radar image products US10042048B1 08/07/2018
Superpixels for improved structure and terrain classification using multiple synthetic aperture radar image products US10042048B1 08/07/2018
Vehicle track identification in synthetic aperture radar images US10032077B1 07/24/2018
Vehicle track identification in synthetic aperture radar images US10032077B1 07/24/2018
Artifact reduction within a SAR image US10018718B1 07/10/2018
Artifact reduction within a SAR image US10018718B1 07/10/2018
Extraordinary electromagnetic transmission by antenna arrays and frequency selective surfaces having compound unit cells with dissimilar elements US9923284B1 03/20/2018
Extraordinary electromagnetic transmission by antenna arrays and frequency selective surfaces having compound unit cells with dissimilar elements US9923284B1 03/20/2018
Robust power detector for wideband signals among many single tone signals US9912420B1 03/06/2018
Robust power detector for wideband signals among many single tone signals US9912420B1 03/06/2018
Radar velocity determination using direction of arrival measurements US9846229B1 12/19/2017
Radar velocity determination using direction of arrival measurements US9846229B1 12/19/2017
Apodization of spurs in radar receivers using multi-channel processing US9823346B1 11/21/2017
Computing angle of arrival of radio signals US9810760B1 11/07/2017
Joint synthetic aperture radar plus ground moving target indicator from single-channel radar using compressive sensing US9791563B1 10/17/2017
Time-dependent phase error correction using digital waveform synthesis US9784818B1 10/10/2017
Phase difference of arrival geolocation US9651648B1 05/16/2017
Shaping the spectrum of random-phase radar waveforms US9645228B1 05/09/2017
Waveform frequency notching US9645227B1 05/09/2017
Omnidirectional antenna having constant phase US9614273B1 04/04/2017
Method of achieving ultra-wideband true-time-delay beam steering for active electronically scanned arrays US9479232B1 10/25/2016
Subaperture clutter filter with CFAR signal detection US9429644B1 08/30/2016
Method, apparatus and system for managing queue operations of a test bench environment US9396081B1 07/19/2016
Superpixel edges for boundary detection US9389311B1 07/12/2016
Wideband unbalanced waveguide power dividers and combiners US9343795B1 05/17/2016
Navigator alignment using radar scan US9304198B1 04/05/2016
Terrain detection and classification using single polarization SAR US9239384B1 01/19/2016
Delivering both sum and difference beam distributions to a planar monopulse antenna array US9219317B1 12/22/2015
Metal-free magnetic conductor substrates for placement-immune antenna assemblies US9147931B1 09/29/2015
Pre-processing SAR image stream to facilitate compression for transport on bandwidth-limited-link US9146312B1 09/29/2015
Differential emitter geolocation US9110147B1 08/18/2015
Synthetic aperture radar images with composite azimuth resolution US8994577B1 03/31/2015
Ultra-wideband, omni-directional, low distortion coaxial antenna US8928546B1 01/06/2015
Ultra-wideband short-pulse radar with range accuracy for short range detection US8854254B2 10/07/2014
Compact antenna arrays with wide bandwidth and low sidelobe levels US8830125B1 09/09/2014
Terahertz metamaterials US8803637B1 08/12/2014
Registering coherent change detection products associated with large image sets and long capture intervals US8692704B1 04/08/2014
Using convolutional decoding to improve time delay and phase estimation in digital communications US7653155B1 01/26/2010
Integrated heterodyne terahertz transceiver US7550734B1 06/23/2009
Controlling data collection to support SAR image rotation US7436349B1 10/14/2008