RF & Communication
Antennas, filters, amplifiers — the wireless chain
Antenna
Antenna
The transducer between guided waves on a cable and radio waves in space. Every wireless project — WiFi, LoRa, GSM, GPS, Bluetooth — lives or dies by its antenna, and it's usually the last thing debugged.
RF Connectors & Coax Adapters
Connector
Connectors engineered to carry GHz signals without reflections: constant 50 Ω impedance right through the joint. SMA, U.FL, BNC, N — each with its niche, and each with a reverse-polarity trap for the unwary.
RF Filter (SAW / LC / Crystal)
Filter
Frequency-selective gatekeepers that pass the band you want and reject everything else — the reason your WiFi ignores GSM towers. SAW filters put a precise bandpass in a 2 mm package; LC filters handle power; crystal filters give razor-sharp selectivity.
RF Amplifier (LNA / PA)
Amplifier
Two very different jobs in one name: the LNA (low-noise amplifier) lifts faint received signals without adding hiss, while the PA (power amplifier) muscles the transmit signal up to real wattage. Every radio has both.