Empowering RF Innovations
CETUS-RF specializes in precision radio frequency design, antenna optimization, and high-frequency system development. From concept to deployment — engineering solutions that operate at the edge of the spectrum.
Browser-based engineering online tools — no installation required. Full physics engines, interactive maps, and exportable results.
Bistatic radar link budget for ISS passive reflection QSOs. Enter two grid squares, dish size, power, and mode — get full link budget, Doppler analysis, pass timing, margin bar, and optimisation tips.
Full design tool for longitudinal shunt slot arrays in WR-28 to WR-137. Guide wavelength, resonant slot dimensions, array factor, gain, HPBW, near/far field, spot diagram, plus CAD SVG, DXF, and G-code CNC export.
Full microwave contest planning tool. Add stations with callsign, grid, bands, antennas and power per band, comms info. Map plotting, heading/distance, terrain profiles with Fresnel zones, per-band link budgets, QSO matrix, and full export for all participants.
From antenna design to complete system integration — CETUS-RF delivers precision engineering across the full RF spectrum.
Custom antenna solutions engineered for precision — from compact microstrip patches to large-aperture phased arrays. Full EM simulation and field validation.
Full-chain RF system architecture — from link budget analysis and component selection to PCB layout, integration, and system-level validation across frequency bands.
Engineering solutions for mmWave and microwave applications — filters, amplifiers, mixers, and waveguide components designed for extreme performance.
Full-stack software development for RF and embedded applications — from low-level hardware drivers to high-level data analysis and visualization pipelines. Custom test automation, measurement software, and signal processing tools for laboratory and field deployment.
Over 30 years of hands-on EMC/EMI expertise spanning aerospace, defense, and commercial programs. Our consulting practice covers the full compliance lifecycle — from system architecture and pre-compliance planning through formal qualification testing and certification support.
Standards expertise: RTCA DO-160, MIL-STD-461, MIL-STD-464, FCC Part 15/18, CISPR, CE marking. Services include technical advisory, EMC system design, custom automated test scripts and software integration, test supervisor support, RF system design, GPS signal distribution architecture, and GPS-referenced timing systems.
Component-level repair and calibration of RF test equipment, transceivers, amplifiers, and signal generators. Full diagnostic reporting and performance restoration.
End-to-end digital and embedded design for RF-intensive applications. FPGA development for high-speed digital signal processing, real-time waveform generation, and hardware-in-the-loop test systems. Software-defined radio platform development, custom waveform implementation, spectrum monitoring, and channelizer design.
Embedded firmware and application development in C, C++, C#, and Python — from bare-metal microcontroller code to full RTOS-based systems. Custom signal processing algorithms, I/Q data pipelines, FFT-based analysis engines, and cross-platform RF control software.
In-house rapid prototyping and precision fabrication capabilities supporting RF hardware development. From initial concept to finished part — engineering-grade design and manufacturing for custom RF enclosures, fixtures, antenna mounts, waveguide components, and test tooling.
Capabilities include 3D printing (FDM, resin), CNC machining, full CAD design (mechanical and RF), G-code programming, dimensional inspection, and design-for-manufacturability review. Tight integration with RF electrical design ensures every mechanical part meets its electromagnetic performance requirements.
A selection of RF engineering challenges tackled across sectors — defense, commercial, and research.
Precision-machined WR-90 8-element longitudinal slot array for the 10.368 GHz amateur microwave band. 10 dBi broadside gain, <−20 dB return loss, alternating-offset slot geometry with travelling-wave excitation. SMA-F input, anodised aluminium, made in USA. Available for purchase.
Python-based S-parameter measurement automation for Keysight and Rohde & Schwarz VNAs. Full calibration routines, batch measurement, and real-time data visualization dashboard.
Wide-area RF monitoring system using SDR hardware with custom channelizer and signal classification engine. Deployed for frequency management and interference detection.
Component-level repair and NIST-traceable calibration of 12-unit signal generator fleet for aerospace test facility. Restored full frequency accuracy and phase noise performance.
A fully custom, self-contained computing and signal-processing engine designed to operate directly at the antenna feed. Dual-OS architecture (Linux + Windows simultaneously), up to 3 simultaneous receivers via USB 3.0, 640 GB internal storage, 10A DC power rail, and remote TCP/IP access — all in a ruggedized 3-lb aluminum enclosure. Designed, built, and programmed by Alex K6VHF for demanding deep-space science missions.
Dual microphone switching for serious operators. Passive, clean, noise-free audio routing with instant mic selection — no cable swapping. Custom engraved with your callsign at no extra cost. Available in Black, Red, Blue, and Gunmetal. Supports 2 Mics → 1 Radio or 1 Mic → 2 Radios configurations. Built in the USA by Alex K6VHF.
CETUS-RF is a specialized RF engineering firm built around deep technical expertise in radio frequency systems. We operate at the intersection of theory and implementation — turning complex RF challenges into deployable, validated solutions.
Our team brings hands-on experience across defense, telecommunications, aerospace, and research sectors. We work with cutting-edge simulation tools and physical lab equipment to ensure every design meets real-world performance requirements before it ships.
Whether you need a single custom component, a complete RF system architecture, EMC/EMI compliance support to MIL-STD-461 or DO-160, or rapid prototyping with in-house CNC and 3D printing — CETUS-RF delivers engineering precision that matters — on time, on spec, on frequency.
Ready to discuss your RF engineering challenge? Submit a project inquiry and a CETUS-RF engineer will respond within 24 hours.