Antenna COALAS::DIPOLE-IPEX-370-530

COALAS::45-DIPOLE-IPEX — a notched dipole antenna designed for reliable reception and transmission in the 370 MHz-530 MHz range. Manufacturer: Coalas systems. Product type: Dipole. This model is ideal for portable two-way radios, terminals, and other radio systems operating in VHF/UHF-like sub-bands of the specified frequency range. The antenna combines compact dimensions and ease of tuning thanks to its structural notches, making it convenient for integration into various devices.

A special feature of the model is the ability to adjust the resonant frequency by cutting along the notches, which allows adapting the antenna to a specific operating frequency without additional equipment or adjustment. Each notch corresponds to one of the marked central frequencies, which speeds up installation and commissioning.

Technical Specifications

• Frequency range: 370 MHz - 530 MHz (when cut along notches)
• Resonant frequencies, MHz: 380 (full), 400, 420, 440, 460, 480, 500, 520
• Bandwidth: 20 MHz (VSWR < 1.6)
• Gain: 2 dBi
• Connector: IPEX Female + RG178 cable 220 mm long
• Dimensions: 350 mm × 200 mm
• Weight: 15 g

The antenna is made of lightweight materials, ensuring minimal weight — only 15 g — and allowing for convenient installation even in compact enclosures. Dimensions of 350 mm by 200 mm make the model versatile: it can be installed inside a device enclosure or externally on a bracket or receiver housing. The IPEX Female connector combined with a 220 mm long RG178 cable provides simple and reliable connection to modules with the corresponding connector, and also allows for neat routing and concealment of the cable inside the device.

With a gain of 2 dBi, the antenna ensures stable signal reception in the specified range, while maintaining compact dimensions and ease of integration. The resonant frequencies marked on the antenna allow for quick selection of the optimal option for your network: at full length, the resonance corresponds to 380 MHz, and successive notches correspond to 400, 420, 440, 460, 480, 500, and 520 MHz.

Area of application: the antenna is suitable for industrial, commercial, and amateur tasks where a compact, efficient, and tunable solution for operation within 370-530 MHz is required. It is used in portable two-way radios, communication terminals, telemetry systems, and other radio-electronic devices.

Installation and tuning instructions: determine the required resonant frequency, trim the antenna along the corresponding notch, and connect it to your device via an IPEX cable. After trimming, it is recommended to check the VSWR and make minor adjustments if necessary to achieve optimal performance at the specified frequency.

To view the design image and assess the antenna dimensions, click on the link: View COALAS::45-DIPOLE-IPEX antenna image

Brand: Coalas systems. Product type: Antennas > Dipole antennas. This description includes all key parameters and characteristics of the model, allowing for an informed choice when purchasing and integrating the antenna into your project. The antenna does not require special tools for tuning, only careful trimming along the notch and standard connection via an IPEX cable.

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