A 0.35‐2 GHz GaAs Multifunctional Chip With Bidirectional True Time Delay
Sign Up to like & getrecommendations! Published in 2025 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.70474
Abstract: This paper presents a 0.35–2 GHz bidirectional true time delay (TTD) transmit/receive (T/R) multifunctional chip utilizing a 0.25‐μm GaAs enhancement/depletion (E/d‐mode) pseudomorphic high electron mobility transistor (pHEMT) process. The chip integrates several key components: a 6‐bit… read more here.
Keywords: bidirectional true; transmit receive; time delay; chip ... See more keywords
Self-awareness of biases in time perception
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Economic Behavior and Organization"
DOI: 10.1016/j.jebo.2018.02.001
Abstract: Abstract We investigated self-awareness in time perception using three time production tasks with different reward structures, and collected self-assessments of performance. Participants had monetary incentives to target the true time in the first (baseline) task,… read more here.
Keywords: task; self awareness; time; time perception ... See more keywords
Design of X-band substrate integrated coaxial line type 6.2 ns true-time delay line
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Electromagnetic Waves and Applications"
DOI: 10.1080/09205071.2025.2469904
Abstract: Wideband phased arrays for Radar, EW, and Communication system utilizes true-time delay (TTD) lines to overcome beam squint issues associated with conventional phased arrays steered over large scan volume. A long-range X-band high-resolution (10 cm) imaging… read more here.
Keywords: delay line; time delay; delay; line ... See more keywords
Analysis of an Ultra-Short True Time Delay Line Optical Reservoir Computer
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2020.2975165
Abstract: This article presents the experimental demonstration of a true-time delay line optical reservoir computer (ORC) using an incoherent light chaos oscillator. In contrast to other benchtop ORC systems, no external fiber spool was employed, enabling… read more here.
Keywords: line optical; time; delay line; time delay ... See more keywords
Enhancing Beamforming Performance of Microcomb-Based Optical True-Time Delay Systems
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2025.3526869
Abstract: The true-time delay (TTD) system for phased array antennas (PAAs) addresses the beam-squint problem effectively. Harnessing broadband microcombs as light sources in optical TTD systems provides numerous channels essential for beam pattern control. To increase… read more here.
Keywords: time delay; beam; true time; repetition rate ... See more keywords
Fast Beam Training With True-Time-Delay Arrays in Wideband Millimeter-Wave Systems
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2021.3054428
Abstract: The best beam steering directions are estimated through beam training, which is one of the most important and challenging tasks in millimeter-wave and sub-terahertz communications. Novel array architectures and signal processing techniques are required to… read more here.
Keywords: true time; delay; beam; millimeter wave ... See more keywords
Effects of AC Response Imperfections in True-Time-Delay Lines
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2020.3027529
Abstract: A true-time-delay line distorts wideband pulses and introduces errors if it has a nonlinear phase or a non-constant magnitude. In this brief, the energy of the error due to phase and magnitude deviations is analyzed.… read more here.
Keywords: true time; response; delay lines; time delay ... See more keywords
A Compact 1–11-GHz 106.7-ps CMOS Passive True Time Delay Chain Implemented by Spiral Transmission Lines
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2024.3355945
Abstract: A novel true time delay (TTD) line with three-loop inductor coupling structure is proposed in this article. This approach effectively reduces the delay cell area and increases the inductance, thereby providing a larger configurable delay… read more here.
Keywords: true time; ghz 106; compact ghz; delay ... See more keywords
On-chip optical true time delay lines based on subwavelength grating waveguides.
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.414477
Abstract: An optical true time delay line (OTTDL) is a fundamental building block for signal processing applications in microwave photonics and optical communications. Here, we experimentally demonstrate an index-variable OTTDL based on an array of 40… read more here.
Keywords: optical true; time delay; true time; delay ... See more keywords
Variable optical true-time delay line breaking bandwidth-delay constraints.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.478102
Abstract: Continuously variable true-time optical delay lines are typically subject to a constraint of the bandwidth-delay product, limiting their use in several applications. In this Letter, we propose an integrated topology that breaks the bandwidth-delay product… read more here.
Keywords: bandwidth delay; delay line; true time; delay ... See more keywords
Extreme-Dispersion-Resistant Optical True Time Delay Line Enabled by Phase-domain Pre-Compensation
Sign Up to like & getrecommendations! Published in 2025 at "Optics Letters"
DOI: 10.1364/ol.580728
Abstract: Optical true time delay lines (OTDLs) based on dispersion tuning suffer from dispersion-induced signal distortion, which in turn restricts the delay extension. In this work, we present an extreme-dispersion-resistant OTDL architecture employing a novel, to… read more here.
Keywords: true time; extreme dispersion; dispersion; optical true ... See more keywords