# Radio-frequency engineering
## MicroSim spec
- **Recommended sim type:** [[Signal|signal]]-processing
- **Microsimmability score:** 36/100
- **Layout:** drawing region (canvas) on top; control region (sliders/buttons) below.
### Parameters (tunable controls)
- `Frequency` (Hz, input tone frequency)
- `Sample rate` (Hz, samples per second)
- `Cutoff` (Hz, filter corner frequency)
### What animates
An input waveform is sampled and filtered; the time trace and its spectrum redraw as frequency, sample rate, and cutoff change.
### Learning objective
Connect sampling and filtering parameters to the recovered signal and its spectrum.
## Links (Wikipedia order)
<!-- injected from _registry/childlinks/Radio-frequency_engineering.json (2026-07-30T02:09:12Z) -->
`AC_motor` · `Abraham–Lorentz_force` · [[Acoustical_engineering]] · [[Aerospace_engineering]] · [[Agricultural_engineering]] · `Air_conditioning` · `Albert_Einstein` · `Alessandro_Volta` · `Alfred-Marie_Liénard` · [[Alternating_current]] · `Ampère's_circuital_law` · `Ampère's_force_law` · `Analogue_electronics` · `André-Marie_Ampère` · `Antenna_(radio)` · `Antenna_tuner` · [[Architectural_engineering]] · `Artech_House` · `Artificial_intelligence_engineering` · `Atomtronics` · `Audio_engineer` · `Audio_equipment` · `Automation_engineering` · `Automotive_electronics` · [[Automotive_engineering]] · `Avionics` · `Bachelor_of_Engineering` · `Bachelor_of_Science` · `Baseband_processor` · `Benjamin_Franklin` · [[Biochemical_engineering]] · `Bioelectronics` · [[Bioinformatics]] · [[Biological_engineering]] · `Biomaterial` · [[Biomechanical_engineering]] · [[Biomedical_engineering]] · `Bioresource_engineering` · `Biot–Savart_law` · `Birkhäuser` · `Bremsstrahlung` · [[Broadcast_engineering]] · [[Building_services_engineering]] · `CMOS` · `CRC_Press` · `Capacitance` · `Carl_Friedrich_Gauss` · `Central_heating` · [[Ceramic_engineering]] · `Charge_density` · `Charles-Augustin_de_Coulomb` · `Charles_Proteus_Steinmetz` · [[Chemical_engineering]] · [[Chemical_reaction_engineering]] · [[Civil_engineering]] · `Classical_electromagnetism` · `Classical_electromagnetism_and_special_relativity` · `Clinical_engineering` · `Clothes_dryer` · [[Coastal_engineering]] · [[Complex_analysis]] · `Computational_electromagnetics` · `Computer` · [[Computer_engineering]] · `Computer_network_engineering` · [[Construction_engineering]] · `Consumer_electronics` · [[Control_engineering]] · [[Control_system]] · [[Corrosion_engineering]] · [[Coulomb's_law]] · `Covariant_formulation_of_classical_electromagnetism` · `Current_density` · `Cyclotron_radiation` · `DC_motor` · `Data_acquisition` · [[Data_engineering]] · `Design_engineer` · `Detector_(radio)` · `Digital_camera` · `Digital_electronics` · `Digital_radio` · `Dipole_antenna` · `Direct_current` · `Dishwasher` · `Doctorate` · `Domestic_robot` · `EHealth` · [[Earthquake_engineering]] · `Ebook` · [[Ecological_engineering]] · `Eddy_current` · `Electret` · `Electric_charge` · [[Electric_current]] · `Electric_dipole_moment` · `Electric_field` · `Electric_flux` · `Electric_machine` · [[Electric_motor]] · `Electric_potential` · `Electric_potential_energy` · `Electric_power` · `Electrical_conductor` · [[Electrical_engineering]] · `Electrical_impedance` · `Electrical_network` · `Electrical_resistance_and_conductance` · `Electricity` · [[Electrochemical_engineering]] · `Electrolysis` · `Electromagnetic_field` · `Electromagnetic_four-potential` · `Electromagnetic_induction` · `Electromagnetic_mass` · `Electromagnetic_radiation` · `Electromagnetic_stress–energy_tensor` · `Electromagnetic_tensor` · `Electromagnetism` · [[Electromechanics]] · `Electromotive_force` · [[Electronics]] · `Electronics_industry` · `Electrostatic_discharge` · `Electrostatic_induction` · `Electrostatics` · `Embedded_system` · `Emil_Lenz` · `Emil_Wiechert` · [[Energy_engineering]] · `Engineer` · `Engineer's_degree` · [[Engineering]] · [[Engineering_drawing]] · [[Engineering_education]] · [[Engineering_management]] · [[Engineering_mathematics]] · [[Engineering_physics]] · [[Environmental_engineering]] · [[Explosives_engineering]] · [[Facilities_engineering]] · `Failure_of_electronic_components` · `Faraday's_law_of_induction` · [[Fire_protection_engineering]] · `Flexible_electronics` · [[Food_engineering]] · [[Forensic_engineering]] · `Four-current` · `Franz_Ernst_Neumann` · `François_Arago` · `Félix_Savart` · `Gauss's_law` · `Gauss's_law_for_magnetism` · [[Genetic_engineering]] · [[Geological_engineering]] · `Georg_Ohm` · `George_Francis_FitzGerald` · `George_Green_(mathematician)` · `George_Singer` · [[Geotechnical_engineering]] · `Glossary` · [[Glossary_of_aerospace_engineering]] · [[Glossary_of_civil_engineering]] · [[Glossary_of_electrical_and_electronics_engineering]] · `Glossary_of_engineering:_A–L` · `Glossary_of_engineering:_M–Z` · [[Glossary_of_mechanical_engineering]] · [[Glossary_of_structural_engineering]] · `Graduate_certificate` · `Ground_plane` · `Gustav_Kirchhoff` · `Gyrator–capacitor_model` · `Hans_Christian_Ørsted` · [[Health_technology]] · `Heinrich_Hertz` · `Helmholtz_decomposition` · `Hendrik_Lorentz` · `Hermann_von_Helmholtz` · `Hippolyte_Fizeau` · `History_of_electromagnetic_theory` · [[History_of_engineering]] · `Home_appliance` · `Home_automation` · `Home_cinema` · `Home_theater_PC` · `Humphry_Davy` · [[Hydraulic_engineering]] · `Inductance` · `Induction_motor` · [[Industrial_engineering]] · `Information_engineering` · `Information_technology` · [[Information_theory]] · [[Instrumentation_and_control_engineering]] · `Insulator_(electricity)` · `Integrated_circuit` · [[Interdisciplinarity]] · `J._J._Thomson` · `James_Clerk_Maxwell` · `James_Prescott_Joule` · `Jean-Baptiste_Biot` · `Jefimenko's_equations` · `John_Henry_Poynting` · `John_Hopkinson` · `Joseph_Henry` · `Joseph_Larmor` · [[Josiah_Willard_Gibbs]] · `Joule_heating` · `Kirchhoff's_circuit_laws` · `Kitchen_stove` · `LDMOS` · `Laptop` · `Larmor_formula` · `Lenz's_law` · `Linear_motor` · `List_of_electrical_phenomena` · `List_of_emerging_technologies` · [[List_of_engineering_branches]] · `List_of_textbooks_in_electromagnetism` · `Liénard–Wiechert_potential` · [[Logistics_engineering]] · `London_equations` · `Lord_Kelvin` · `Lorentz_force` · `Low-power_electronics` · `Luigi_Galvani` · `MOSFET` · `Magnetic_circuit` · `Magnetic_complex_reluctance` · `Magnetic_field` · `Magnetic_flux` · `Magnetic_moment` · `Magnetic_reluctance` · `Magnetic_scalar_potential` · `Magnetic_vector_potential` · `Magnetism` · `Magnetization` · `Magnetomotive_force` · `Magnetostatics` · `Major_appliance` · [[Manufacturing_engineering]] · `Marine_electronics` · [[Marine_engineering]] · `Master's_degree` · [[Materials_science]] · `Mathematical_descriptions_of_the_electromagnetic_field` · `Maxwell's_equations` · `Maxwell's_equations_in_curved_spacetime` · `Maxwell_stress_tensor` · `Mechanical,_electrical,_and_plumbing` · [[Mechanical_engineering]] · [[Mechatronics]] · [[Metallurgy]] · `Michael_Faraday` · `Microelectronics` · `Microwave` · [[Microwave_engineering]] · `Microwave_oven` · `Military` · [[Military_engineering]] · [[Mining_engineering]] · `Mobile_phone` · `Molecular_electronics` · [[Molecular_engineering]] · `Multimedia` · `Municipal_or_urban_engineering` · `Nanoelectronics` · `Nanoengineering` · [[Naval_architecture]] · `Network_analysis_(electrical_circuits)` · `Networking_hardware` · `Nikola_Tesla` · `Noise_power` · `Nuclear_electronics` · [[Nuclear_engineering]] · `Ohm's_law` · `Oliver_Heaviside` · [[Ontology_engineering]] · `Open-source_hardware` · [[Optical_engineering]] · `Optics` · `Optoelectronics` · `Organic_electronics` · `Outline_of_computer_engineering` · [[Outline_of_engineering]] · [[Packaging_engineering]] · [[Paper_engineering]] · `Permeability_(electromagnetism)` · `Permeance` · `Permittivity` · [[Petroleum_engineering]] · [[Pharmaceutical_engineering]] · `Phase-locked_loop` · `Photonics` · `Piezotronics` · `Polarization_density` · [[Polymer_engineering]] · `Portable_media_player` · `Power_MOSFET` · `Power_electronics` · [[Power_engineering]] · `Poynting's_theorem` · `Printed_electronics` · `Privacy_engineering` · [[Process_engineering]] · `RF_CMOS` · `RF_and_microwave_filter` · `RF_connector` · `RF_power_amplifier` · `Radar` · `Radio` · `Radio_frequency` · `Radio_navigation` · `Radio_propagation` · `Radio_receiver` · [[Railway_engineering]] · `Refrigerator` · `Regulation_and_licensure_in_engineering` · `Rehabilitation_engineering` · `Relativistic_electromagnetism` · `Resonator` · `Retarded_potential` · `Right-hand_rule` · [[River_engineering]] · `Robotic_vacuum_cleaner` · [[Robotics_engineering]] · `Rotor_(electric)` · [[Safety_engineering]] · [[Sanitary_engineering]] · [[Security_engineering]] · [[Semiconductor_device]] · `Series_and_parallel_circuits` · [[Signal_processing]] · `Signal_trace` · `Siméon_Denis_Poisson` · `Small_appliance` · [[Software_engineering]] · `Spintronics` · `Sports_engineering` · `Static_electricity` · `Stator_(electric_machines)` · [[Structural_engineering]] · [[Surface_engineering]] · [[Sustainable_engineering]] · `Synchrotron_radiation` · [[Systems_engineering]] · `Tablet_computer` · `Tankless_water_heating` · [[Telecommunications_engineering]] · `Telephone` · `Television` · `Terahertz_radiation` · [[Thermal_engineering]] · `Timeline_of_computing_2020–present` · [[Tissue_engineering]] · [[Traffic_engineering_(transportation)]] · `Transformer` · `Transmission_line` · `Transmitter` · [[Transportation_engineering]] · `Triboelectric_effect` · [[Tribology]] · `Tuner_(radio)` · `Vector_calculus` · `Video_game_console` · [[Voltage]] · `Voltage-controlled_oscillator` · `Washing_machine` · `Watt` · `Waveguide_(radio_frequency)` · `Wilhelm_Eduard_Weber` · `William_Gilbert_(physicist)` · `William_Ritchie_(physicist)` · `Wire` · `Wireless`
## From the Real GENERATIVE library
*Radio-frequency engineering — placed from the Real G.E.N.E.R.A.T.I.V.E. course library (Engineering room). Source: Wikimedia Commons (via Wikipedia article media). [Details & license](https://commons.wikimedia.org/wiki/File:VFPt_Solenoid_correct2.svg).*
> Radio-frequency (RF) engineering is a subset of electrical engineering involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of about 20 kHz up to 300 GHz.[1][2][3] ([Wikipedia](https://en.wikipedia.org/wiki/Radio-frequency_engineering))
<!-- REAL-GENERATIVE-MEDIA:END -->
> p5.js MicroSim stub · part of Systems Engineering · [Wikipedia source](https://en.wikipedia.org/wiki/Radio-frequency_engineering)
> Relation: subfield of systems engineering.
## Concept summary
Radio-frequency (RF) [[Engineering|engineering]] is a subset of [[Electrical_engineering|electrical engineering]] involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of...
## Build checklist
- [ ] Claim it: set `status: in-progress` + `lease` + `leased_at`
- [ ] Write the child page explaining the concept (tie it back to systems engineering)
- [ ] Finalize parameter ranges and defaults
- [ ] Implement the p5.js sketch (drawing + control regions)
- [ ] Add caption + the learning objective on the page
- [ ] Set `status: done`
## p5.js sketch
```javascript
// MicroSim: Radio-frequency engineering
let controls = {};
function setup() {
// createCanvas(...); create sliders for the parameters above.
}
function draw() {
// background(...); read controls; render signal-processing; respond live.
}
```
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Back to Systems Engineering
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<!-- SEMIOTIC-PROFILE:START -->
## Semiotic profile
> *The semiotic universals this article invokes, machine-derived from the crossref — **unverified** (born so). Populated 2026-07-06 for the Systems room.*
**Universals (8):** 🟢 frequency (13) · 🟢 signal (6) · 🟡 system (5) · 🟢 sampling (5) · 🟢 filter (3) · 🟢 spectrum (2) · 🟢 field (1) · 🟢 wave (1)
**Enter by sign:** Systems Semiotic Gateway · Alphabetum · Icon Registry · ← Systems Portal
<!-- SEMIOTIC-PROFILE:END -->
<!-- REAL-GENERATIVE-MEDIA:START -->
## Wikipedia : Wikitube
**Strict pair:** [Wikipedia](https://en.wikipedia.org/wiki/Radio-frequency_engineering) : [Wikitube](https://en.wikitube.io/wiki/Radio-frequency_engineering)
## Previous hub tags
Tree parents: [[Reliability_engineering]] · [[Systems_engineering]].
Legacy hubs: none.
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*Sources: 2 legacy notes. Minted wave 1, 2026-07-30 (v1.6 order).*