Pro Antenna Designer — Free NFC & RF Antenna Calculator

Design professional NFC and RF antennas online with our free engineering calculator.

Features

NFC Antenna Calculator — Compute inductance using Wheeler's formula for 13.56 MHz antennas
RF Antenna Designer — Design antennas for multiple frequency bands and styles
Impedance Matching — Automatic matching network synthesis (L-network, Pi-network)
ISO 14443 Compliance Audit — Verify your NFC antenna meets ISO standards
PCB Export — Export designs as Gerber files or KiCad projects
AI Analysis — Get AI-powered design recommendations
Multiple Shapes — Square, circular, hexagonal, and octagonal antenna geometries

Supported Antenna Types

Design antennas for NFC (13.56 MHz), RFID, Bluetooth, WiFi, LoRa, GPS, and custom frequencies. Supports popular NFC chips including ST25R, PN532, RC522, and more.

Blog

NFC Antenna Design Guide
PCB Antenna Design Tutorial
13.56 MHz Antenna Calculator Guide
Antenna Matching Network Calculator
NFC Antenna Simulation
RFID vs NFC Antenna Design

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