Radar & RF Systems
EM theory, antenna design, RF circuits, radar systems/signal processing, electronic warfare, and system test/measurement.
280 topics · 1 with articles
Intern Engineer· 0 of 40
- 1/f Phase Noise FundamentalsArticle coming
- Atmospheric Attenuation: O2, H2O, Rain ModelsArticle coming
- Coherent vs. Non-Coherent Detection TheoryArticle coming
- Cosite Interference and Frequency DeconflictionArticle coming
- Diffraction: Knife-Edge and Physical OpticsArticle coming
- Direct RF Sampling and Digital IF ArchitectureArticle coming
- EM Simulation Tools: HFSS, CST, SonnetArticle coming
- Free-Space Path Loss: Friis Transmission EquationArticle coming
- Gain Compression at P1dBArticle coming
- Guided Waves: Coaxial Line ModesArticle coming
- Homodyne (Zero-IF) Receiver ArchitectureArticle coming
- Image Frequency and Image Rejection RatioArticle coming
- Impedance Transformation: Quarter-Wave SectionArticle coming
- Ionospheric Effects on HF PropagationArticle coming
- Leesons Model for Oscillator Phase NoiseArticle coming
- Maxwell Equations: Integral and Differential FormArticle coming
- Noise Figure: Friis Formula for Cascaded StagesArticle coming
- Noise Temperature and Equivalent Noise BandwidthArticle coming
- Nonlinear Distortion: Harmonics and IMDArticle coming
- Plane Wave Propagation in Free SpaceArticle coming
- Power Flow: Poynting Vector DefinitionArticle coming
- Propagation in Urban Environments: Ray TracingArticle coming
- Radiation Resistance and Antenna EfficiencyArticle coming
- Receiver Sensitivity CalculationArticle coming
- Reflection Coefficient and VSWR CalculationArticle coming
- Reflection and Transmission at Dielectric BoundaryArticle coming
- Refraction: Snell Law for EM WavesArticle coming
- S-Parameters: S11, S21, S12, S22 DefinitionArticle coming
- Shannon-Hartley Channel Capacity TheoremArticle coming
- Signal Flow Graphs and Masons RuleArticle coming
- Skin Depth in Conductors at High FrequencyArticle coming
- Spurious-Free Dynamic Range (SFDR)Article coming
- Standing Wave Ratio Measurement and ImpactArticle coming
- Superheterodyne Receiver ArchitectureArticle coming
- Third-Order Intercept Point (IP3) DefinitionArticle coming
- Transmission Line Theory: Voltage and Current WavesArticle coming
- Troposcatter Link Budget CalculationArticle coming
- Wave Polarization: Linear, Circular, EllipticalArticle coming
- Waveguide Cutoff Frequency and Phase VelocityArticle coming
- Waveguide Modes: TE10, TM11, TEMArticle coming
Junior Engineer· 0 of 40
- Active Element Pattern in ArrayArticle coming
- Adaptive Beamforming: LMS and SMI AlgorithmArticle coming
- Antenna Bandwidth: Q Factor and FBWArticle coming
- Antenna Diversity: Selection, MRC, EGCArticle coming
- Antenna Gain, Directivity, and EfficiencyArticle coming
- Antenna Matching: Network and Balun DesignArticle coming
- Antenna Measurement: Far-Field Chamber, Compact RangeArticle coming
- Antenna Polarimetry: Jones Matrix, Mueller MatrixArticle coming
- Aperture Antenna: Effective Area and GainArticle coming
- Aperture Illumination Taper and Side-Lobe LevelArticle coming
- Array Factor and Pattern Multiplication TheoremArticle coming
- Coaxial Feed vs. Microstrip Inset FeedArticle coming
- Conformal Antenna Array for Missiles and AircraftArticle coming
- Electrically Small Antenna Matching StrategiesArticle coming
- Electronically Scanned Array (ESA) ArchitectureArticle coming
- Half-Wave Dipole Radiation Pattern and ImpedanceArticle coming
- Half-Wave Spaced Array: Grating Lobe ConditionArticle coming
- High-Gain Feed Systems for Satellite Ground StationArticle coming
- Horn Antenna Design: Pyramidal and ConicalArticle coming
- MIMO Antenna: Spatial Multiplexing CapacityArticle coming
- MVDR Beamformer and Spatial FilteringArticle coming
- Massive MIMO for 5G and 6GArticle coming
- Metamaterial Antenna: High-Impedance SurfaceArticle coming
- Microstrip Patch Antenna: Basic Design EquationsArticle coming
- Monopole over Ground Plane AntennaArticle coming
- Mutual Coupling in Array ElementsArticle coming
- Near-Field to Far-Field TransformationArticle coming
- Null Steering for Interference CancellationArticle coming
- Optical Antenna and Nano-Antenna ConceptsArticle coming
- Parabolic Reflector Antenna: Focal Point DesignArticle coming
- Patch Antenna: TM10 Mode and Fringing FieldsArticle coming
- Phased Array Steering: Electronic Phase ShifterArticle coming
- Radiation Pattern: Main Lobe, Side Lobes, Back LobeArticle coming
- Radome EM Transmission and DesignArticle coming
- Reconfigurable Intelligent Surface (RIS) BasicsArticle coming
- Reflectarray Antenna DesignArticle coming
- Steerable Array Control AlgorithmArticle coming
- Terahertz Antenna and Near-Field ImagingArticle coming
- UWB Antenna: Planar Monopole, Vivaldi NotchArticle coming
- Wideband Antenna: Log-Periodic, SpiralArticle coming
Middle Engineer· 0 of 80
- 3D Radar: Height Finding TechniquesArticle coming
- Ambiguity Function: Range-Doppler Trade-offArticle coming
- Antenna-Integrated Module (AiP) DesignArticle coming
- Bistatic Radar Geometry and EquationsArticle coming
- CFAR (Constant False Alarm Rate) DetectionArticle coming
- CW Radar: Zero-Range LimitationArticle coming
- Cavity Filter for High-Power High-Q ApplicationsArticle coming
- Cell-Averaging CFAR (CA-CFAR)Article coming
- Chirp Signal and Linear Frequency Modulation (LFM)Article coming
- Coaxial Connectors: SMA, N, 2.92mm, 1.85mmArticle coming
- Coherent Integration for Non-Fluctuating TargetArticle coming
- Compressed Sensing for Sparse Radar ImagingArticle coming
- Coupled-Line Bandpass Filter DesignArticle coming
- DDS (Direct Digital Synthesizer) ArchitectureArticle coming
- Dielectric Resonator Filter DesignArticle coming
- Digital Pre-Distortion (DPD) for PA LinearizationArticle coming
- Directional Coupler: Branchline, Rat-Race, LangeArticle coming
- Doppler Frequency and Radial Velocity MeasurementArticle coming
- Envelope Tracking Power Supply for PAArticle coming
- FMCW Radar Signal Processing ChainArticle coming
- FMCW Radar: Triangle Waveform and IF SignalArticle coming
- FMCW Range and Doppler CouplingArticle coming
- Fractional-N PLL with Sigma-Delta ModulatorArticle coming
- Free-Space Propagation for Radar Link BudgetArticle coming
- GMTI (Ground Moving Target Indication)Article coming
- GaAs and GaN Switch DesignArticle coming
- GaAs pHEMT for Low-Noise RF ApplicationsArticle coming
- GaN HEMT for Radar PA (X-Band, Ka-Band)Article coming
- Ground Penetrating Radar (GPR) Signal ProcessingArticle coming
- High-Power Amplifier (HPA) Design: Load PullArticle coming
- ISAR (Inverse SAR) ImagingArticle coming
- Image Reject Mixer and Hartley ArchitectureArticle coming
- L-Network, Pi-Network, T-Network MatchingArticle coming
- LC VCO Phase Noise and Tuning RangeArticle coming
- LNA Design with HEMT / pHEMT (GaAs, GaN)Article coming
- LNA Stability: Rollett K Factor and MSGArticle coming
- Low Noise Amplifier (LNA): Noise Figure and GainArticle coming
- MEMS RF Switch BasicsArticle coming
- MMIC (Microwave Monolithic IC) Design FlowArticle coming
- MTI (Moving Target Indication) Filter DesignArticle coming
- Microwave Mixer: Single and Double BalancedArticle coming
- Mixer Conversion Loss and IP3Article coming
- OS-CFAR and VI-CFAR VariantsArticle coming
- One-Way vs. Two-Way Path Loss ComparisonArticle coming
- Over-the-Horizon Radar: Ionospheric PathArticle coming
- PIN Diode Switch: Bias Circuit, Loss, IsolationArticle coming
- PLL Frequency Synthesizer ArchitectureArticle coming
- Passive Coherent Location (PCL)Article coming
- Polyphase Codes (Frank, P4) for RadarArticle coming
- Pulse Compression: Matched Filter GainArticle coming
- Pulse Radar Parameters: PRF, PW, Duty CycleArticle coming
- RF Bandpass Filter: Chebyshev, ButterworthArticle coming
- RF CMOS Amplifier Design and ChallengesArticle coming
- RF Circulator and Isolator (Ferrite-Based)Article coming
- RF MEMS Phase Shifter for Phased ArrayArticle coming
- RF PCB Stack-Up: RO4003C, RO3010 MaterialsArticle coming
- RF T/R (Transmit/Receive) Module DesignArticle coming
- RF Transmission Line: 50 Ohm and 75 Ohm StandardsArticle coming
- Radar Altimeter Design and ApplicationsArticle coming
- Radar Cross Section (RCS) Definition and ModelsArticle coming
- Radar Range Equation: Derivation and ParametersArticle coming
- Radar Tracker: Kalman, IMM, JPDAArticle coming
- Radar Waveform Design: Agility and DiversityArticle coming
- Random Phase Codes for LPI RadarArticle coming
- Range Resolution Formula: c*tau/2Article coming
- Ring VCO for Wideband ApplicationsArticle coming
- SAR Focusing Algorithms: Range-Doppler, Omega-KArticle coming
- SAR: Synthetic Aperture Radar PrinciplesArticle coming
- STAP Degrees of Freedom and Sample SupportArticle coming
- Sea Clutter and Land Clutter ModelsArticle coming
- SiGe BiCMOS for Millimeter-Wave ICArticle coming
- Side-Lobe Level of Compressed Pulse (Taylor, Hamming)Article coming
- Smith Chart: Impedance Matching StepsArticle coming
- Solid-State Limiter for Receiver ProtectionArticle coming
- Space-Time Adaptive Processing (STAP)Article coming
- Sub-THz and THz Circuit Design ChallengesArticle coming
- Swerling Target Models I, II, III, IVArticle coming
- Voltage-Controlled Oscillator (VCO) DesignArticle coming
- Weather Clutter and Polarimetric DiscriminationArticle coming
- Wilkinson Power Divider and CombinerArticle coming
Senior Engineer· 0 of 40
- AI/ML for Radar Classification in EWArticle coming
- Anti-Radiation Missile (ARM) Homing LogicArticle coming
- Chaff Corridor and Dipole RCS ModelsArticle coming
- Channelized Receiver ArchitectureArticle coming
- Cognitive EW with Reinforcement LearningArticle coming
- Compressive Receiver for EW ApplicationsArticle coming
- Cooperative Jamming StrategiesArticle coming
- DECM: Digital Electronic CountermeasuresArticle coming
- DRFM False-Target GenerationArticle coming
- DRFM: Digital Radio Frequency MemoryArticle coming
- Deceptive Jamming: Range Gate Pull-Off (RGPO)Article coming
- Directed Energy Weapon (DEW) ConceptsArticle coming
- ECM: Noise Jamming TechniquesArticle coming
- ELINT: Emitter Identification and LibraryArticle coming
- EW Effectiveness: J/S CalculationArticle coming
- EW Integration with IADS ArchitectureArticle coming
- EW Threat Library Design and ManagementArticle coming
- Electronic Attack (EA) System ArchitectureArticle coming
- Electronic Counter-Countermeasures (ECCM)Article coming
- Electronic Support Measures (ESM): Intercept ReceiverArticle coming
- Emitter Location by TDOA and AOA MethodsArticle coming
- Flare Countermeasure (IR and RF Combined)Article coming
- Frequency Hopping Spread Spectrum (FHSS)Article coming
- High-Power Microwave (HPM) EffectsArticle coming
- IFM (Instantaneous Frequency Measurement)Article coming
- LPI Radar Design: Low Probability of InterceptArticle coming
- LPI Waveforms: FMCW, Phase Codes, Noise RadarArticle coming
- Multi-Function RF System DesignArticle coming
- Next-Gen Cognitive and Adaptive EWArticle coming
- Quantum Radar Feasibility AssessmentArticle coming
- RF Fingerprinting for Emitter RecognitionArticle coming
- Radar Warning Receiver (RWR) ArchitectureArticle coming
- Repeater Jammer Design PrinciplesArticle coming
- SEAD (Suppression of Enemy Air Defenses)Article coming
- Signal Sorting and Pulse DeinterleavingArticle coming
- Spot Jamming, Barrage Jamming, Sweep JammingArticle coming
- Terrain-Bounce and Stand-Off JammingArticle coming
- Towed Decoy and Active Decoy DesignArticle coming
- Velocity Gate Pull-Off (VGPO) TechniqueArticle coming
- Wideband Intercept Receiver ArchitectureArticle coming
Staff Engineer· 1 of 40
- ADC Selection for Radar: Sample Rate, ENOB, SFDRRead
- AESA System Architecture: T/R Module LevelArticle coming
- AI-Assisted Radar Resource ManagementArticle coming
- Calibration: Amplitude, Phase, TemperatureArticle coming
- Clutter Suppression Budget and MTI ImprovementArticle coming
- Coherent System Timing and Phase ReferenceArticle coming
- Counter-UAV Radar System DesignArticle coming
- DAC Selection for Digital Waveform GenerationArticle coming
- Digital Beamforming (DBF) ArchitectureArticle coming
- Digital Twin for Radar System ModelingArticle coming
- Dual-Function Radar-Communications (DFRC)Article coming
- Dynamic Range Budget: Full-Chain AnalysisArticle coming
- FPGA-Based Digital Back-End ArchitectureArticle coming
- Frequency Management in Dense RF EnvironmentsArticle coming
- Frequency Plan and IF SelectionArticle coming
- GaN T/R Module Integration and AssemblyArticle coming
- MOSA (Modular Open System Architecture)Article coming
- Multi-Domain Operations Radar IntegrationArticle coming
- Multi-Function Radar Resource SchedulingArticle coming
- Multi-Static Radar Network ArchitectureArticle coming
- Next-Gen AESA with GaN Monolithic TilesArticle coming
- Noise Figure Budget for Receiver Front-EndArticle coming
- PA Module Integration (Spatial Combining)Article coming
- Phase Noise Impact on Radar PerformanceArticle coming
- Radar Data Fusion with EO/IR SensorsArticle coming
- Radar RF Safety (ICNIRP Guidelines)Article coming
- Radar Signature Management: Low ObservableArticle coming
- Radar Software Architecture Model-BasedArticle coming
- Radar System Cooling and Thermal ManagementArticle coming
- Radar System Trade Studies: SWaP AnalysisArticle coming
- Receiver Protection: Limiter, Circulator, TR SwitchArticle coming
- STANAG 4607 GMTI Data FormatArticle coming
- SoC Integration for Radar (Xilinx RFSoC)Article coming
- Software-Defined Radar Platform DesignArticle coming
- Spectrum Sharing: Radar and 5G CoexistenceArticle coming
- Spurious Response and Image Rejection BudgetArticle coming
- System Link Budget: Transmitter to Receiver ChainArticle coming
- Target Detection Range Calculation (Rmax)Article coming
- Technology Roadmap for Radar ProgramsArticle coming
- Wideband RF Channelizer DesignArticle coming
Distinguished Engineer· 0 of 40
- Antenna Range Gain MeasurementArticle coming
- Calibration Lab Accreditation (ISO 17025)Article coming
- Compact Range and Near-Field ChamberArticle coming
- Conducted Emission IEC 61000-3-2 TestArticle coming
- DO-160 Section 20 RF SusceptibilityArticle coming
- DO-160 Section 21 RF EmissionArticle coming
- EFT/Burst Test: IEC 61000-4-4 SetupArticle coming
- EMC Pre-Compliance: Near-Field Probe SetArticle coming
- ESD Test: IEC 61000-4-2 Contact and AirArticle coming
- ETSI EN 301 091 Short Range Radar ComplianceArticle coming
- ETSI EN 302 571 ITS Radar StandardArticle coming
- FCC Part 15.249 / 15.515 Radar Device RulesArticle coming
- IEEE 521 Radar Letter Band StandardArticle coming
- IP3 and P1dB Measurement SetupArticle coming
- ITU Radio Regulations for Radar BandsArticle coming
- Image Rejection Ratio MeasurementArticle coming
- LISN (Line Impedance Stabilization Network)Article coming
- Load Pull System for PA CharacterizationArticle coming
- MIL-STD-461 CE102, CS101, RE102, RS103Article coming
- MIL-STD-464 System EM EnvironmentArticle coming
- Noise Figure Analyzer (Y-Factor Method)Article coming
- Noise Source: Excess Noise Ratio (ENR)Article coming
- Phase Noise Analyzer Measurement SetupArticle coming
- Phase Noise with Cross-Correlation MethodArticle coming
- Phased Array Calibration: Element-Level TestArticle coming
- Power Sensor and Power Meter CalibrationArticle coming
- RCS Measurement Range SetupArticle coming
- RF Anechoic Chamber Antenna Pattern TestArticle coming
- Radar Performance Test: Range and AccuracyArticle coming
- Radiated Emission CISPR 22 Class B TestArticle coming
- SAR Measurement ProcedureArticle coming
- SFDR Measurement with Spectrum AnalyzerArticle coming
- Signal Generator: Frequency, Power, ModulationArticle coming
- Spectrum Analyzer: Span, RBW, VBW SettingsArticle coming
- Spurious Response Measurement ProcedureArticle coming
- Surge Test: IEC 61000-4-5 WaveformArticle coming
- VNA Calibration: SOLT, TRL, TOSMArticle coming
- VNA S-Parameter Measurement ProcedureArticle coming
- VNA Time-Domain Reflectometry (TDR) ModeArticle coming
- Wideband Oscilloscope for RF EnvelopeArticle coming