Engineering Resources
RF Block Diagram Library
Interactive system-level block diagrams for microwave and millimeter-wave applications. Each diagram details the complete signal chain with component specifications and design notes.
25 Block Diagrams
Communication Systems
Communication
7 Block Diagrams
Communication
Superheterodyne Receiver
The most widely used receiver architecture. Image-reject filter, IF selectivity, AGC, and demodulation.
Communication
Direct Conversion (Zero-IF) Receiver
Modern I/Q quadrature demodulation. No image frequency. Used in 5G, WiFi, and SDR.
Communication
TX/RX, Single Antenna (Circulator), Dual Stage
Full duplex transceiver with circulator and dual-stage frequency conversion.
Communication
TX/RX, Single Antenna (SPDT), Dual Stage
TDD transceiver with SPDT switch and dual-stage frequency conversion.
Communication
TX/RX, Single Antenna (SPDT), Single Stage
Simplified transceiver with single-stage conversion. Lower complexity for narrowband systems.
Communication
Point-to-Point Microwave Link (FDD)
Full duplex backhaul link with frequency-division duplexing and diplexer.
Communication
Phased Array Beamforming Network
Electronic beam steering with T/R modules, phase shifters, and corporate feed. 5G and radar.
Radar Systems
Radar
9 Block Diagrams
Radar
Pulse-Doppler Radar
Simultaneous range and velocity measurement. Fighter radar and ATC architecture.
Radar
Synthetic Aperture Radar (SAR)
High-resolution imaging radar for aircraft and satellite platforms. Chirp pulse compression.
Radar
Monopulse Tracking Radar
Precision angle tracking with sum and difference channels. Fire control and satellite tracking.
Radar
Monostatic Speed Sensor
CW Doppler radar with circulator. Measures velocity from Doppler frequency shift.
Radar
Bistatic Speed Sensor
Separate TX/RX antennas for improved isolation in CW Doppler velocity measurement.
Radar
Monostatic Ranging Sensor
Pulsed radar with T/R switch. Measures distance from round-trip pulse delay.
Radar
Bistatic Ranging Sensor
Separate TX/RX antennas. No blind zone for close-range pulsed ranging.
Radar
Monostatic Ranging Sensor (FMCW)
Frequency-modulated CW radar. Range from beat frequency of chirp and return.
Radar
Ground Penetrating Radar (GPR)
UWB impulse radar for subsurface imaging. Utility detection and geotechnical surveys.
Electronic Warfare
Electronic Warfare
2 Block Diagrams
Test & Measurement
Test & Measurement
4 Block Diagrams
Test & Measurement
Vector Network Analyzer (VNA)
S-parameter measurement with directional couplers, coherent receivers, and error correction.
Test & Measurement
Spectrum Analyzer
Swept-tuned frequency-domain analysis with preselector, RBW filter, and log detector.
Test & Measurement
Noise Figure Measurement (Y-Factor)
Standard Y-factor technique with calibrated noise source for amplifier and receiver NF characterization.
Test & Measurement
PLL Frequency Synthesizer
Phase-locked loop for coherent frequency generation. Foundation of all RF signal sources.
Scientific & Industrial
Scientific & Industrial
3 Block Diagrams
Scientific & Industrial
Total Power Heterodyne Receiver
Radiometer architecture for passive thermal imaging, atmospheric sensing, and measurement.
Scientific & Industrial
Dicke Switching Radiometer
Gain-stabilized radiometer with reference load switching. Radio astronomy standard.
Scientific & Industrial
Correlation Interferometer
Two-element baseline for radio astronomy and direction finding. Cross-correlation of antenna signals.