GL-DY4021 433 MHz 2.5 dBi Rubber Duck Antenna

Product Overview

GL-DY4021 is a rubber duck antenna for routers, gateways, modems, handheld devices, IoT terminals, and wireless communication equipment. The product datasheet lists Frequency Range: 433; Gain: 2.5 dBi; VSWR: ＜2.0; Nominal Impedance: 50 Ω; Polarization: Linear.

This page uses the product’s own datasheet values for electrical and mechanical parameters, so buyers can confirm RF fit, connector fit, mechanical space, and environmental requirements before sampling.

Key Features

• GL-DY4021 rubber duck antenna for professional wireless terminals
• Operating band: 433
• Gain: 2.5 dBi
• VSWR: ＜2.0
• Connector: SMA male
• Dimensions: Ø10*108.5 mm

Technical Specifications

Mechanical and Installation Notes

Confirm that the SMA male connector, Ø10*108.5 mm mechanical size, and 433 operating band match the target radio, enclosure, and installation space. For cable length, connector variant, packaging, or custom requirements, confirm the required configuration with Rftech before ordering.

Applications and Industries

GL-DY4021 can be used in wireless routers, gateways, modems, handheld terminals, IoT devices, and communication equipment that require a compact external rubber duck antenna. Match the frequency, gain, connector, dimensions, and environmental limits to the target device before release.

Resources

• Product datasheet: gl-dy4021-rubber-duck-antenna-datasheet.pdf

Engineering Selection Notes

Before release or sampling, review the antenna against the target radio module, receiver sensitivity, enclosure clearance, cable route, ground conditions, and installation surface. If a listed value does not match the project requirement, request a matching standard item or custom variant.