RF calculators for antenna length, coax loss, VSWR, Fresnel zone, link budget and RF PCB design.
RF calculators for antenna length, coax loss, VSWR, Fresnel zone, link budget and RF PCB design.
Use these values as a starting point. Real RF performance depends on PCB layout, ground plane, enclosure, cable loss, connectors and measurement conditions.
Common mistakes include ignoring coax loss, poor antenna placement, missing ground plane, wrong impedance and testing too close to objects.
Estimate PCB microstrip trace impedance.
Estimate PCB stripline impedance.
Estimate LoRa link margin.
Estimate WiFi link margin.
Vertical, horizontal, circular and cross polarization explained.
Calculate resonant frequency, inductance or capacitance for RF LC circuits.
Estimate L-match component reactances for simple RF impedance matching.
Understand pi matching networks for RF impedance matching and harmonic filtering.
Practical RF impedance matching basics for antennas, PCB traces and RF modules.
Learn Smith chart basics for RF impedance, matching and reflection analysis.
No. RF results are starting estimates and should be verified with measurements.
Nearby objects, ground plane, enclosure and cable routing can shift resonance and radiation pattern.
Estimate RF coax cable loss from attenuation and cable length.
Estimate LoRa received power and link margin.
Calculate free-space RF path loss.
Estimate WiFi received power and link margin.
Estimate PCB microstrip RF trace impedance.