RF & Wireless
RF circuit design, antenna theory, transmission lines, microwave components, and RF system architecture.
320 topics · 6 with articles
Intern Engineer· 5 of 80
- 2.5D EM Simulation: Momentum (ADS), Sonnet EmArticle coming
- 3D EM Simulation: Ansys HFSS, CST Studio, SonnetArticle coming
- Ampere-Maxwell Law: ∇×H = J + ∂D/∂tRead
- Atmospheric Attenuation: O₂ (60 GHz), H₂O (22 GHz)Article coming
- Boundary Conditions at Dielectric InterfaceArticle coming
- Channel Coherence Bandwidth: Bc ≈ 1/(5·τrms)Article coming
- Channel Coherence Time: Tc ≈ 0.423/fDArticle coming
- Characteristic Impedance: Z0 = √(L/C) (Lossless)Article coming
- Circuit-EM Co-Simulation: Port Extraction and IntegrationArticle coming
- Circular Waveguide: TE11, TM01 Dominant ModeArticle coming
- Coaxial Line: TEM Mode, Cutoff Frequency, AttenuationArticle coming
- Connector Types: SMA, N, 2.92mm, 1.85mm, 1.0mm (110 GHz)Article coming
- Constitutive Relations: D = εE, B = µH, J = σEArticle coming
- Coplanar Waveguide (CPW): Ground on Same LayerArticle coming
- De-Embedding: Fixture Removal from VNA MeasurementArticle coming
- Differential S-Parameters: Mixed-Mode SCC, SDD, SCD, SDCArticle coming
- Diffraction: Knife-Edge Loss, Fresnel Zone ClearanceArticle coming
- Doppler Shift: fd = v·fc/c·cos(θ)Article coming
- Faraday's Law of Induction: ∇×E = -∂B/∂tArticle coming
- Free-Space Path Loss: FSPL = (4πd/λ)²Article coming
- Fresnel Coefficients: Reflection and TransmissionArticle coming
- Friis Transmission Equation: Pr/Pt = Gt·Gr·(λ/4πd)²Article coming
- Gauss's Law for Electric Field: ∇·D = ρvArticle coming
- Gauss's Law for Magnetic Field: ∇·B = 0Article coming
- Ground Reflection: Two-Ray Model (d² Dependence)Article coming
- Half-Wave Section: Impedance Repeating PropertyArticle coming
- Impedance Matching with Smith Chart: L, π, T NetworksArticle coming
- Indoor Propagation: ITU-R P.1238, Partition LossArticle coming
- Insertion Loss: IL = -20log|S21| (dB)Article coming
- Ionospheric Effects: Faraday Rotation, TEC, HF PropagationArticle coming
- Link Budget: EIRP, Path Loss, Sensitivity, MarginRead
- MIMO Channel: H Matrix, Spatial Multiplexing CapacityArticle coming
- Mason's Signal Flow Graph: Gain FormulaArticle coming
- Massive MIMO: Large Antenna Arrays, Beamforming GainArticle coming
- Maximum Stable Gain (MSG) and Maximum Available Gain (MAG)Article coming
- Maxwell's Equations: Integral and Differential FormsArticle coming
- Microstrip Line: Width vs. Z0, Effective εr, LossesArticle coming
- Multipath Propagation: Constructive/Destructive FadingArticle coming
- Noise Figure from S-Parameters: Friis FormulaArticle coming
- On-Wafer Probing: GSG Probe, Probe Station SetupArticle coming
- Open-Circuit and Short-Circuit Stubs for MatchingArticle coming
- Path Loss Models: Free-Space, Log-Distance, Okumura-HataArticle coming
- Phase Constant β and Wavelength λ = 2π/βArticle coming
- Plane Wave Propagation: Phasor Form and Complex kArticle coming
- Power Flow: Poynting Vector S = E × HArticle coming
- Propagation Constant: γ = α + jβArticle coming
- Propagation in Lossy Media: Attenuation Constant αArticle coming
- Quantum Communication: Photon Entanglement and ChannelsArticle coming
- Quarter-Wave Transformer: Impedance InversionArticle coming
- Rain Attenuation: ITU-R P.838 ModelArticle coming
- Rayleigh Fading: PDF, CDF, Doppler SpreadArticle coming
- Reconfigurable Intelligent Surface (RIS): Phase ShiftArticle coming
- Rectangular Waveguide: TE10 Mode, Cutoff fc = c/(2a)Article coming
- Reflection Coefficient: Γ = (ZL - Z0)/(ZL + Z0)Article coming
- Return Loss: RL = -20log|S11| (dB)Article coming
- Rician Fading: K-Factor and LOS ComponentArticle coming
- S-Parameter Matrix: Incident and Reflected WavesArticle coming
- S-Parameter to Z, Y, H Parameter ConversionArticle coming
- S-Parameters Definition: S11, S21, S12, S22Article coming
- Short-Open-Load-Through (SOLT): ISS Calibration StandardsArticle coming
- Skin Depth: δ = 1/√(πfµσ) in ConductorsArticle coming
- Smith Chart Navigation: Move Clockwise (Toward Load)Article coming
- Smith Chart: Reflection Coefficient PlaneArticle coming
- Snell's Law of Refraction for EM WavesArticle coming
- Stability Analysis: K-Factor (Rollett), B1 CriterionArticle coming
- Standing Waves: Nodes and Antinodes of V and IRead
- Stripline: Buried Conductor, No Radiation, ShieldedArticle coming
- T-Matrix (ABCD Matrix) for Cascaded NetworksArticle coming
- Telegrapher's Equations: Voltage and Current WavesRead
- Terahertz (THz) Propagation: Molecular AbsorptionArticle coming
- Time-Domain Reflectometry (TDR): Impedance ProfileArticle coming
- Total Internal Reflection and Critical AngleArticle coming
- Transducer Power Gain, Available Gain, Operating GainArticle coming
- Transmission Line Model: Distributed L, C, R, G ParametersArticle coming
- Troposcatter: Long-Range Beyond-LOS CommunicationArticle coming
- Urban Ray Tracing: Buildings, Reflection, DiffractionArticle coming
- VNA Calibration: SOLT, TRL, SOLR, LRM MethodsRead
- Voltage Standing Wave Ratio: VSWR = (1+|Γ|)/(1-|Γ|)Article coming
- Wave Equation Derivation from Maxwell's EquationsArticle coming
- Wave Polarization: Linear, Circular, EllipticalArticle coming
Junior Engineer· 0 of 40
- Branch-Line Coupler: 90° Hybrid, I/Q SplitArticle coming
- Cavity Filter: High Q, High Power, Low Insertion LossArticle coming
- Class E PA: ZVS Switching for >90% EfficiencyArticle coming
- Class F PA: Harmonic Tuning for High EfficiencyArticle coming
- Colpitts VCO: CMOS and Bipolar ImplementationArticle coming
- Digital Pre-Distortion (DPD): Memory Polynomial ModelArticle coming
- Doherty PA: Peak and Carrier Amplifier, Back-Off EfficiencyArticle coming
- Envelope Tracking (ET) Power Supply for PA EfficiencyArticle coming
- FBAR/BAW Filter: Bulk Acoustic Wave for Mobile RFArticle coming
- GaN MMIC PA: Layout, Via Holes, Air-Bridge ConnectionsArticle coming
- Gilbert Cell CMOS Active MixerArticle coming
- Image Reject Mixer: Hartley and Weaver ArchitecturesArticle coming
- LNA Cascode: High Gain, Improved IsolationArticle coming
- LNA Input Matching: Conjugate vs. Noise OptimalArticle coming
- LNA Multi-Stage: Cascaded NF (Friis Formula Application)Article coming
- LNA Noise Matching vs. Simultaneous Noise and Power MatchArticle coming
- LNA Topology: Common-Source with Inductive DegenerationArticle coming
- Lange Coupler: Tight Coupling at mmWave FrequenciesArticle coming
- Limiter / Protector: PIN Diode for Receiver ProtectionArticle coming
- Low-Noise Amplifier (LNA): Noise Figure, Gain, StabilityArticle coming
- MMIC Design Flow: Process Selection, Layout, EM VerificationArticle coming
- PA Classes A, AB, B, C: Conduction Angle, EfficiencyArticle coming
- PA Load-Pull Measurement: Optimal ZL for Pout, PAEArticle coming
- PA Stability: Conditional Stability, Stabilization NetworkArticle coming
- Phase Shifter: Analog (Varactor), Digital (SPDT Switch)Article coming
- Power Amplifier (PA): Output Power, PAE, GainArticle coming
- Push-Push VCO: Second Harmonic Output at 2f0Article coming
- RF Attenuator: Pi and T Pad, Absorptive vs. ReflectiveArticle coming
- RF Circulator and Isolator: Ferrite-Based Non-ReciprocalArticle coming
- RF Filter Design: Coupled-Line BPF, Hairpin, ComblineArticle coming
- RF Mixer: Conversion Gain, NF, IIP2, IIP3, LO IsolationArticle coming
- RF Switch: PIN Diode, FET Switch, MEMS SwitchArticle coming
- RF Transistor Technologies: GaAs pHEMT, GaN HEMT, SiGe HBT, RF CMOSArticle coming
- Rat-Race Coupler: 180° Hybrid, Balanced Mixer InputArticle coming
- SAW Filter: Surface Acoustic Wave for Sub-6 GHzArticle coming
- Single-Balanced and Double-Balanced Mixer TopologiesArticle coming
- Sub-Harmonic Mixer for mmWave ApplicationsArticle coming
- VCO Design: LC Tank, Tuning Range, Phase NoiseArticle coming
- VCO FOM (Figure of Merit): Phase Noise, Power, FrequencyArticle coming
- Wilkinson Divider: In-Phase Split, Isolation Between PortsArticle coming
Middle Engineer· 0 of 80
- 5G NR Sub-6 GHz: FR1, Numerology (µ=0,1,2), Slot StructureArticle coming
- 5G NR mmWave (FR2): 24–52 GHz, Beamforming, Beam ManagementArticle coming
- 5G NSA and SA Architecture: 4G Core vs. 5G Core (5GC)Article coming
- 5G Network Slicing: eMBB, URLLC, mMTC Use CasesArticle coming
- 5G Sub-6 GHz Antenna: 4×4, 8×8 MIMO IntegrationArticle coming
- 5G mmWave Antenna Module: AiP (Antenna-in-Package)Article coming
- 6G Vision: Sub-THz, AI-Native Air Interface, RISArticle coming
- AESA (Active Electronically Scanned Array): T/R ModuleArticle coming
- Adaptive Beamforming: LMS, MVDR, LCMV AlgorithmsArticle coming
- Antenna Fundamental Parameters: Gain, Directivity, EfficiencyArticle coming
- Antenna Measurement: Far-Field Chamber, Near-Field ScannerArticle coming
- Antenna Polarization: LP, CP (RHCP/LHCP), Cross-PolArticle coming
- Antenna Simulation: HFSS, CST, FEKO, IE3DArticle coming
- Array Factor: Pattern Multiplication with Element PatternArticle coming
- BLE 5.x: Extended Advertising, Periodic Advertising, PASTArticle coming
- BLE Audio (LE Audio): ISO, LC3 Codec, Auracast BroadcastArticle coming
- BLE Mesh: Flooding, Managed Flood, ProvisioningArticle coming
- Bluetooth Classic: BR (1 Mbps), EDR (2/3 Mbps) PHYArticle coming
- Bluetooth Low Energy (BLE): LE 1M, LE 2M, LE Coded PHYArticle coming
- Bow-Tie Antenna: Wideband, Self-ComplementaryArticle coming
- Cellular IoT: NB-IoT, LTE-M, Cat-1 bis ComparisonArticle coming
- Cognitive Radio: Dynamic Spectrum Access, DSAArticle coming
- Compact Antenna Test Range (CATR) for mmWaveArticle coming
- DASH7: ISO/IEC 18000-7, Active RFID ProtocolArticle coming
- DECT-2020 NR: Next-Gen DECT for IIoT and Smart HomeArticle coming
- Digital Beamforming (DBF): ADC per Element, FlexibilityArticle coming
- Diversity Techniques: Space, Polarization, Pattern, FrequencyArticle coming
- Effective Aperture Ae and Gain Relationship: Ae = Gλ²/4πArticle coming
- Effective Isotropic Radiated Power (EIRP) CalculationArticle coming
- GNSS Interference: Jamming, Spoofing, MeaconingArticle coming
- GPS/GNSS: L1, L2, L5 Bands, Pseudorange, NMEAArticle coming
- Grating Lobes: Condition d > λ/2 at Scan AngleArticle coming
- HaLow (802.11ah): 900 MHz, Long Range, Low PowerArticle coming
- Half-Wave Dipole: Radiation Resistance 73 Ω, Gain 2.15 dBiArticle coming
- Helical Antenna: Axial Mode, Circular PolarizationArticle coming
- Horn Antenna: Pyramidal, Conical, Gain vs. ApertureArticle coming
- IEEE 802.11 Wi-Fi Standards: a/b/g/n/ac/ax/be EvolutionArticle coming
- LEO Satellite Direct-to-Device: Starlink, AST SpaceMobileArticle coming
- LTE-M (eMTC): Cat-M1, VoLTE, Higher Data Rate vs. NB-IoTArticle coming
- LoRa: Chirp Spread Spectrum (CSS) ModulationArticle coming
- LoRaWAN: OTAA/ABP Join, Class A/B/C, ADRArticle coming
- Log-Periodic Dipole Array (LPDA): Wideband CoverageArticle coming
- Loop Antenna: Small Loop (Magnetic Dipole) PropertiesArticle coming
- MIMO Antenna: Isolation, Envelope Correlation, EfficiencyArticle coming
- Massive MIMO Antenna: >64 Elements, Hybrid BeamformingArticle coming
- Matter (CHIP): Application Layer over Thread/Wi-Fi/EthernetArticle coming
- Metamaterial Antenna: CRLH, High-Impedance Surface (HIS)Article coming
- Microstrip Patch Antenna: TM10 Mode, Fringing FieldsArticle coming
- Monopole over Ground Plane: Image Theory, Gain 5.15 dBiArticle coming
- Mutual Coupling in Arrays: Active Element PatternArticle coming
- NB-IoT (LTE-M-NB): Coverage Enhancement, PSM, eDRXArticle coming
- OTA (Over-The-Air) Testing: TRP, TIS, EIS, ERP MeasurementArticle coming
- Parabolic Reflector: Focal Length, Aperture EfficiencyArticle coming
- Patch Antenna Design: W, L for Resonance at f0Article coming
- Patch Antenna Feed: Coaxial Probe, Microstrip Edge, InsetArticle coming
- Patch Array: Array Factor, Mutual Coupling EffectsArticle coming
- Patch Bandwidth: Q Factor, Return Loss vs. BandwidthArticle coming
- Phased Array: Phase Shifter Control, Steering AngleArticle coming
- Polarization Mismatch Loss: PLF = cos²(ψ)Article coming
- RF Regulatory: FCC, ETSI, ISED, SRRC Key RequirementsArticle coming
- RTK-GPS: Carrier-Phase Differential, cm-Level AccuracyArticle coming
- Radiation Pattern: Main Lobe, Side Lobes, Back Lobe, HPBWArticle coming
- Reconfigurable Antenna: Frequency, Pattern, PolarizationArticle coming
- Satellite IoT: Swarm, Kinéis, Iridium 9603, AstrocastArticle coming
- Sigfox: UNB (Ultra-Narrowband) Uplink/DownlinkArticle coming
- Slot Antenna: Complementary to Dipole (Babinet's Principle)Article coming
- Spectrum Sharing: LSA, CBRS (3.5 GHz) Band FrameworkArticle coming
- Thread: IPv6 over 802.15.4, Mesh Routing (RPL)Article coming
- UWB (IEEE 802.15.4z): Precision Ranging, Time-of-FlightArticle coming
- Vivaldi Antenna: Tapered Slot, UWB (3.1–10.6 GHz)Article coming
- Wi-Fi 6 (802.11ax): OFDMA, MU-MIMO, BSS Coloring, TWTArticle coming
- Wi-Fi 6E: 6 GHz Band, Channel Plan, RegulatoryArticle coming
- Wi-Fi 7 (802.11be): 320 MHz, 4K-QAM, Multi-Link OperationArticle coming
- Wi-Fi MAC: CSMA/CA, EDCA, Block ACK, AMPDUArticle coming
- Wi-Fi Physical Layer: OFDM Subcarrier Spacing, CP, PilotsArticle coming
- Wi-SUN FAN: Mesh for Smart Grid and Utility IoTArticle coming
- WiMAX / IEEE 802.16: OFDMA, QoS for BroadbandArticle coming
- Yagi-Uda Antenna: Driven, Reflector, Director ElementsArticle coming
- Zigbee / IEEE 802.15.4: PHY, MAC, Network, App LayerArticle coming
- mioty: Telegram Splitting Multiple Access (TSMA)Article coming
Senior Engineer· 1 of 80
- 5G NR RF Conformance: 3GPP TS 38.101 Test CasesArticle coming
- ADC in Receiver: ENOB, SFDR, Sampling Rate RequirementsArticle coming
- Antenna Pattern Measurement: Azimuth, Elevation CutsArticle coming
- Automated RF Test: LabVIEW, MATLAB, PyVISA, SCPI CommandsArticle coming
- Automatic Gain Control (AGC): Loop, Attack, Release TimeArticle coming
- BLE/Wi-Fi Conformance Test: Bluetooth Spec SIG, Wi-Fi AllianceArticle coming
- Calibration Uncertainty Budget: ISO/IEC 17025 ApproachArticle coming
- Carrier Aggregation: Intra-Band, Inter-Band, CA CombinerArticle coming
- Cascade IIP3: System Linearity from Gain and IIP3 BudgetArticle coming
- Channel Estimation: LS, MMSE, Pilot PatternsArticle coming
- Channel Filter: SAW/BAW BPF, Polyphase FilterArticle coming
- Conducted Emission: LISN, EN 55032 Class B LimitArticle coming
- Conducted Susceptibility: IEC 61000-4-6 Bulk Current InjectionArticle coming
- Digital IF and Direct RF Sampling ArchitectureArticle coming
- Directional Coupler: Sampling Incident/Reflected PowerArticle coming
- Dynamic Range: Spurious-Free DR, BDR, Linear DRRead
- ESD Immunity: IEC 61000-4-2 Contact and Air DischargeArticle coming
- Envelope Detector for AM DemodulationArticle coming
- Equalization: ZF, MMSE, DFE for Multipath ChannelsArticle coming
- Error Vector Magnitude (EVM): Measurement and LimitsArticle coming
- Eye Diagram for High-Speed Digital and RF SignalArticle coming
- FM Discriminator: Phase-Locked Loop DemodulationArticle coming
- Fractional-N PLL: Sigma-Delta Divider, Fractional SpursArticle coming
- Full-Duplex (Self-Interference Cancellation): Analog + DigitalArticle coming
- GNU Radio: Open-Source SDR Processing FrameworkArticle coming
- Gain Measurement: Comparison Method, Absolute MethodArticle coming
- Group Delay Measurement: Phase vs. Frequency DerivativeArticle coming
- Homodyne (Zero-IF / Direct Conversion) ReceiverArticle coming
- I/Q Demodulator: Carrier Recovery, Costas LoopArticle coming
- I/Q Modulator: IQ Imbalance, Phase and Gain ErrorArticle coming
- IM3 Measurement: Two-Tone Test, IIP3 ExtrapolationArticle coming
- Image Frequency and Image Reject Filter RequirementsArticle coming
- Integer-N PLL: Reference Spurs, Phase NoiseArticle coming
- Intermodulation Distortion: IIP3, OIP3, IP2 DefinitionsArticle coming
- Intermodulation Test: Two-Tone Generator, Bandpass FilterArticle coming
- Jitter Measurement: RJ, DJ, TJ ComponentsArticle coming
- Load Pull System: Tuner-Based and Active Load-PullArticle coming
- Low-IF Receiver: Compromise Between Superheterodyne and ZIFArticle coming
- MIMO Transceiver: Multiple TX/RX Chains, CalibrationArticle coming
- Noise Figure Analyzer: Y-Factor Method, Cold-Source MethodArticle coming
- Noise Source: ENR (Excess Noise Ratio) CalibrationArticle coming
- OFDM Synchronization: Timing Offset, Carrier Frequency OffsetArticle coming
- OTA Test Methods: CATR, Spherical NFS, Cylindrical NFSArticle coming
- OTA Testing: TRP (Total Radiated Power), TIS MeasurementArticle coming
- PA Characterization: P1dB, Psat, OIP3, PAE MeasurementArticle coming
- PLL Frequency Synthesizer: Reference, VCO, DividerArticle coming
- Phase Noise Analyzer: Cross-Correlation MethodArticle coming
- Phase Noise Measurement: Carrier Offset, Integrated Phase NoiseArticle coming
- Phased Array Beamforming RFIC: 5G NR FR2 mmWaveArticle coming
- Power Sensor and Power Meter: Calibration, AccuracyArticle coming
- RAKE Receiver: Multipath Diversity Combining (3G CDMA)Article coming
- RF FEM for 5G Sub-6 GHz: PAM4G3 ArchitectureArticle coming
- RF Front-End Module (FEM): PA + LNA + Switch + FilterArticle coming
- RF Immunity: IEC 61000-4-3 Radiated SusceptibilityArticle coming
- RF SoC (e.g., nRF52, CC2652, QCA4020): Full StackArticle coming
- RFIC for 5G: Qualcomm QTM535, Mediatek T800, Samsung RFICArticle coming
- Radiated Emission: OATS or Semi-Anechoic ChamberArticle coming
- Receiver Blocking: Large Out-of-Band Signal DesensitizationArticle coming
- Receiver Noise Figure: System NF from Friis FormulaArticle coming
- SAR Measurement: IEC 62209-1, IEEE 1528 ProtocolArticle coming
- SDR (Software-Defined Radio): ADC/DAC + FPGA/DSPArticle coming
- Sensitivity: MDS = -174 + NF + 10log(BW) + SNRminArticle coming
- Signal Generator: CW, Modulated, Frequency/Phase/AM ControlArticle coming
- Spectrum Analyzer Measurement: Power, Harmonics, SpursArticle coming
- Spectrum Analyzer: Architecture, RBW, VBW, Span, ReferenceArticle coming
- Spurious Emission Measurement: CISPR, FCC Part 15Article coming
- Superheterodyne Receiver: IF Selection, Image RejectionArticle coming
- TCXO and OCXO Reference Oscillator for Low Phase NoiseArticle coming
- TDD vs. FDD: Duplexer, Switch, Isolation RequirementsArticle coming
- Transceiver (TRx) IC: Integrated RF Front-EndArticle coming
- USRP / RTL-SDR / Ettus Hardware PlatformsArticle coming
- VNA Calibration: SOLT (Short-Open-Load-Through)Article coming
- VNA Calibration: TRL (Thru-Reflect-Line) for mmWaveArticle coming
- VNA Port Extension and De-Embedding TechniquesArticle coming
- VNA Time-Domain Mode: TDR for Impedance vs. DistanceArticle coming
- VSWR and Return Loss Measurement: VNA and Directional BridgeArticle coming
- Vector Network Analyzer (VNA): Principle and ArchitectureArticle coming
- Vector Signal Analyzer (VSA): EVM, Constellation DiagramArticle coming
- Vector Signal Generator: IQ Modulation, Waveform PlaybackArticle coming
- Zero-IF Challenges: DC Offset, I/Q Imbalance, Flicker NoiseArticle coming
Distinguished Engineer· 0 of 40
- 5G NR FR2: 24.25–52.6 GHz Band Plan and Channel WidthArticle coming
- 5G mmWave AiP (Antenna-in-Package): Flip-Chip + AntennaArticle coming
- 60 GHz (802.11ad/ay): WiGig Multi-Gigabit WLANArticle coming
- 6G RF Technology Roadmap: Sub-THz, AI-Native, RISArticle coming
- 77 GHz Automotive Radar: FMCW, Range, Velocity, AngleArticle coming
- 94 GHz W-Band: Security Imaging and SATCOMArticle coming
- AI for RF Fingerprinting: Signal Authentication and IDArticle coming
- AI-Driven Beamforming: ML-Based Beam SelectionArticle coming
- Automotive Radar MIMO: Virtual Array, Angular ResolutionArticle coming
- Beam Failure Recovery: BFR Procedure in 5G NRArticle coming
- Beam Management in 5G NR: SSB, CSI-RS, Beam SweepingArticle coming
- BiCMOS SiGe: 130nm, 55nm for mmWave Front-End ICArticle coming
- CMOS mmWave: 28nm, 16nm FinFET at 60 GHzArticle coming
- Cognitive Radar: Environment Sensing, Adaptive WaveformArticle coming
- D-Band (110–170 GHz): Backhaul, Sensing ApplicationsArticle coming
- FMCW Radar Signal Processing: Range-Doppler Map, CFARArticle coming
- GaN on SiC for mmWave PA: 28 GHz and 39 GHzArticle coming
- Hybrid Beamforming: Phase Shifter + Digital PrecodingArticle coming
- InP HBT Technology: fT > 500 GHz for THz CircuitsArticle coming
- Joint Communication and Sensing (ISAC): 5G RadarArticle coming
- LEO Satellite Downlink: Phased Array User TerminalArticle coming
- On-Chip Antenna at mmWave: Efficiency, Substrate ModesArticle coming
- Photonic-Assisted RF: Electro-Optic Modulator, MZMArticle coming
- Point-to-Point Microwave Backhaul: E-Band 80 GHz LinkArticle coming
- Quantum RF Sensing: Rydberg Atom ElectrometerArticle coming
- RIS Phase Control: Digital Phase Shifter or VaractorArticle coming
- Radar PCB Design: Substrate, Via, Launch, Feed NetworkArticle coming
- Radio-over-Fiber (RoF): Fronthaul for Distributed AntennaArticle coming
- Reconfigurable Intelligent Surface (RIS) / IRS: Passive ReflectArticle coming
- Satellite Communication: Ku, Ka, V-Band VSAT SystemArticle coming
- Spectrum Monitoring: Wideband Scanning Receiver DesignArticle coming
- THz (0.3–3 THz): Spectroscopy, Imaging, CommunicationArticle coming
- THz Detector: Golay Cell, Pyroelectric, Hot-Electron BolometerArticle coming
- THz Source: Schottky Multiplier Chain, Resonant Tunnel DiodeArticle coming
- W-Band VNA: Waveguide Extender, 75–110 GHz CoverageArticle coming
- Wafer-Level Packaging (WLP) for mmWave ModuleArticle coming
- mmWave Beamforming: Analog, Digital, Hybrid ArchitecturesArticle coming
- mmWave Channel: High Path Loss, Oxygen Absorption at 60 GHzArticle coming
- mmWave Frequency Bands: 24, 28, 39, 60, 77, 94, 140 GHzArticle coming
- mmWave RFIC Measurement: Probe Station, GSG ProbeArticle coming