splotRF vs AetherRF Lite

Key Features: • plots .snp format s-parameter touchstone data • stability circles for load and source • µ and µ' for load and source stability • interactive data markers • overlay multiple trace data on a single plot • overlay trace data from multiple files • view data as a table list • arbitrary number of ports (.s1p, .s2p, s3p…snp support) • S/Y/Z matrix conversion • mA/RI/dB formatting • interpolation over frequency • exports vector graphics to .pdf • plotting display properties and configuration are saved within file comments • automated grid layout • Smith Chart, Polar and Rectangular plots • reads and plots .zip archives containing s-parameter data

Aether Lite is an RF and Microwave engineering suite for professionals, students, and enthusiasts. Explore the full RF design workflow — from system link budgets to impedance matching — at no cost. Aether Lite limits the number of blocks in a budget to 3 and the number of budgets in a project to 2. A full-featured version (Aether) without these limitations is also available. System Budget Calculator: • Cascade Analysis: Chain amplifiers, mixers, filters, and attenuators to compute system Noise Figure, Gain, IP3, and P1dB. • Link Budget: Calculate received power, SNR, and link margin for wireless systems. • Export cascade diagrams as PDF, SVG or draw.io. Filter Designer (limited edition, max 3rd order): • Filter Synthesis: Butterworth and Chebyshev responses. • Filter Classes: Low Pass, High Pass and Band Pass. • Passive LC ladder implementation with frequency and component scaling. • S-parameter simulation with magnitude, phase/delay, and schematic views. IQ Simulator: • Signal Generator: Create CW, two-tone, and Gaussian noise signals, or load IQ data files. • Spectrum, IQ waveforms and constellation visualization. Smith Chart Designer (lite version): • Interactive Smith Chart with schematic editor. • L, C, R, Transmission Lines, and S2P blocks. • Amplifier Design with Gain and Stability Circles. • Frequency sweep and Monte Carlo analysis. Data Explorer: • Import Touchstone (.sNp) files. • Cartesian, Polar, and Smith Chart visualizations. • Marker system and snapshot comparison. Analytical & Transmission Line Tools: • Closed-form models for common transmission line geometries. • Resonator and Attenuator Designers. Export & Share: • PDF reports, PNG/SVG screenshots, draw.io diagrams, Touchstone files. Upgrade to Aether for the full feature set: • No limitations on number of blocks in a budget or budgets in a project • Advanced filter types: Elliptic, Legendre-Papoulis, higher-order synthesis • Trace Designer: Full 2D BEM solver for PCB transmission lines For support or feature requests, please contact us.