RF & Wireless
RF (radio frequency) and wireless components are the foundation of circuits that carry data without wires, using electromagnetic waves. From antennas and transceivers to RF filters and wireless modules, they sit at the heart of every connected device.
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Antennas (chip, PCB trace, external), RF transceivers and wireless modules (Wi-Fi, Bluetooth/BLE, LoRa, Zigbee, cellular), GNSS/GPS receivers, SAW/BAW filters, power amplifiers (PA) and low-noise amplifiers (LNA) are the main types. Frequency band (2.4 GHz, sub-GHz ISM), range, data rate, power consumption and antenna/impedance (50Ω) matching matter when choosing one. IoT sensor nodes, wearables, smart home, asset tracking and industrial telemetry are the most common applications.
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Frequently asked questions
What is included in the RF and wireless category?+
This category covers antennas, RF transceivers and wireless modules (Wi-Fi, Bluetooth/BLE, LoRa, Zigbee, cellular), GNSS/GPS receivers, SAW/BAW filters, power amplifiers (PA) and low-noise amplifiers (LNA) — in short, all components that carry data wirelessly.
How do I choose between 2.4 GHz and sub-GHz (868/915 MHz)?+
2.4 GHz (Wi-Fi, BLE, Zigbee) offers high data rate and global compatibility but has shorter range and a crowded band; sub-GHz bands (LoRa, 868/915 MHz) give longer range and better obstacle penetration but lower data rate. High data = 2.4 GHz, long range and low power = sub-GHz.
Why should antenna impedance be 50Ω in RF design?+
50Ω is an industry-standard balance between power transfer and loss. If the antenna, transmission line and transceiver are not at the same impedance (50Ω), part of the signal reflects back (high VSWR), range drops and the transmitter can be damaged; that is why impedance matching is critical.