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PL4: Satellite Communications, Where are we heading?
IMS2025
In the recent past we have seen an increase in space platforms launched to supply the need for communications and earth observation satellites. This need is being driven by many factors, fro...
THMA11: Absolute and Relative Power Measurements in dBm and dBFS on the USRP Radio
IMS2025
The USRP SDR radios from National Instruments (NI) are not calibrated devices, and as such, they operate using relative power levels in dBFS. However, it is possible to manually calibrate the USRP an...
THMA12: Engineering Signal Purity at Every Level in Frequency Control and Timing Design
IMS2025
Signal purity is vital for precision frequency control and timing, enabling high performance in mission-critical RF and microwave systems. This presentation examines Quantic Wenzel's method of ac...
THMA13: Model-Based RF System Design and Simulation
IMS2025
Modeling and simulation of antennas, arrays, and RF front-ends are crucial for successful wireless systems in communications and sensing. A top-down system-level approach, flexible in using full-wave ...
THMA14: Using X band RF buffers with Sub-Picosecond Noiseless Delays to mitigate trace/cable mismatches
IMS2025
New RF buffers have noiseless delays that can achieve 0.5 ps steps and up to 50 ps range. With such delays one can tune out mismatches due to board imperfections, cable/connector mismatches, and othe...
THMA15: Transforming Oscilloscopes into Multi-Channel RF Signal Analyzers with Truly Independent Settings for Each Channel
IMS2025
Traditional oscilloscopes, while powerful, are often limited by identical settings across all channels, restricting their utility in advanced RF analysis. With the latest advancements, we have unlocke...
THMA16: A Tuning Technique for Enhancing Far-Band Rejection Performance in Suspended Substrate Low Pass Filters
IMS2025
Low pass filters are crucial for eliminating unwanted high-frequency signals in communication systems. Achieving enhanced far-band rejection while maintaining a compact design, however, remains a sign...
Th3A: Advances in 3D-Printing and Additive Manufacturing
IMS2025
This session reports the latest advances in 3D-printing and additive manufacturing of microwave and mm-wave filters, attenuators, interconnects, and transmitters.
Th3B: Advanced Semiconductor Technologies
IMS2025
This session discusses deep-levels and high field-effects in GaN devices including HEMTs and IMPATT diodes. Additional topics include performance implications of gate insulator and metallization desig...
Th3C: Reconfigurable Filtering Devices
IMS2025
This session presents the latest advances in reconfigurable filtering devices. The reconfigurable devices include a multi-throw filtering switch, tunable filters, and an electrical balance duplexer fo...