433MHz 2.5dBi Omnidirectional Folding Antenna

Description

This 433MHz omnidirectional folding antenna is engineered for sub-1GHz wireless communication modules operating in the 433MHz ISM band. Its quarter-wave design and 2.5dBi gain provide an effective balance between signal coverage and physical size, making it a practical choice for extending the range of LoRa transceivers, RF remote controls, sensor networks, and telemetry systems.

Constructed with a 50-ohm impedance and a low VSWR (typically under 2.0), the antenna ensures efficient RF power transfer and minimizes signal loss. The folding whip mechanism allows for flexible orientation and compact storage, while the standard SMA or RP-SMA male connector offers direct compatibility with a wide range of RF modules and development boards.