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This article serves as an introduction to frequency modulated continuous wave (FMCW) radar generation within the 24 GHz ISM band. This includes the major building blocks required for this type of radar system such as ramp generation, transmit and receive stages, downconversion, and sampling.
Electromagnetic simulation time and memory are dependent upon the electrical size of the model being simulated. In this paper, analysis between simulation runtime and memory between Altair Feko’s full wave/asymptotic solvers and parallel processes is performed using aircraft models provided in UT Austin’s RCS Benchmark Suite.
Today’s Multifunction Active Electronically Scanned Array (AESA) systems are engineered and manufactured to simultaneously perform different operations, such as radar, electronic warfare (EW), and communications functions. One of the most critical elements of digitally reprogrammable multifunction AESA systems are the fixed-frequency sources.
Precision quartz crystals must operate reliably for many years under sometimes adverse conditions including large ambient temperature variations and exposure to moisture and other environmental contaminants.
This white paper examines the contrasts between traditional line of sight (LoS) radar and over-the-horizon (OTH) HF radar, driven by emerging threats like hypersonic missiles. It delves into HF propagation principles, interference sources, and operational OTH radar like ROTHR and JORN, while also addressing challenges in research, development, testing, and evaluation.
Most every wireless and wireline communication network, along with radar systems uses a digital modulation scheme that is susceptible to noise and jitter. Many systems still use a heterodyne architecture that converts the digital signal to a higher-frequency analog signal. This architecture relies on a mixer to create these higher frequencies. Noise from any component that reaches the mixer can be re-mixed and this reduces the sensitivity and selectivity of the entire system as re-mixed signals leak into adjacent channels. Phase noise is a big contributor to this potential issue.
Today, the 6G standard is in the early phases. Candidate technologies are being researched, prototyped, and simulated to drive the direction of the 3GPP standards development activity. Applying digital twin workflows to simulations and pairing them with a prototype as it moves through the design phase opens up innovative ways to design and identify optimizations early. Modeling software tools that leverage as much real-world data as possible have the potential to solve significant challenges early by incorporating known insights from existing 5G deployments. Research testbeds will be critical to success if 6G aims to spur collaboration alongside innovation. The ability to prototype new AI, digital twin, and software-defined tools across the wireless ecosystem will provide significant results for applying those technologies wisely. This eBook looks at the design densification and test challenges from migrating 5G communications into the 6G sub-Terahertz frequency ranges. Keysight Technologies, the sponsor of this eBook, presents end-to-end capabilities for simulating, testing, and evaluating devices, subsystems, and systems for the evolution of the 5G systems as they evolve towards 6G.
Although Silicon-on-Insulator (SOI) MMIC switches can achieve fast switching, wide bandwidth and high frequency and power, most come at high cost. GaAs MMIC switch designs achieve comparable performance at considerably lower cost with distinct advantages. Read why Mini-Circuits’ GaAs MMIC technology switches afford a compelling alternative to comparable SOI models.
With the increasing excitement surrounding 5G non-terrestrial networks (NTN), satellites are poised to revolutionize telecommunications. In this context, this paper aims to provide insight into the applications of IoT-NTN, the fundamental technology architecture, and details of the advanced test solutions from ALifecom.
