2118439-3

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RF antennas are antennas that are made to transmit and receive electromagnetic radiation in radio frequency (RF) bands, which include frequencies from 3 kHz to 300 GHz. The most common are those used for everyday applications such as cellular phones, TVs, radios, and Wi-Fi. Antennas can be designed to be directional or omni-directional. In this article, we discuss the 2118439-3 antenna, its application fields, and its working principle.

Application Fields

The 2118439-3 is a wideband omnidirectional antenna designed for operation in the 2.4 GHz to 2.5 GHz ISM (Industrial, Scientific, Medical) and UNII (Unlicensed National Information Infrastructure) bands. It is designed for IEEE802.11b/g/n networking applications as well as any other applications which require an omnidirectional antenna with a wide operating frequency range.

The 2118439-3 is designed for applications that require an omni-directional antenna with high gain and wide bandwidth in a compact form factor. It is ideal for both high power and low power applications. The antenna is constructed using a robust aluminum radome which is corrosion and scratch resistant, making it suitable for both indoor and outdoor applications. Its applications include Wi-Fi, WIMAX, GSM, and ISM communication systems, among others.

Working Principles

The 2118439-3 antenna features a helical-shaped radiating element that is designed to produce omni-directional radiation patterns in the vertical and horizontal planes. The antenna utilize a directional feed which converts the omnidirectional field pattern radiated by the radiating element into a unidirectional field pattern in the horizontal plane. The feed also acts as a balun, converting the 300-Ohm T-Match feed impedance of the radiating element to the 50-Ohm termination impedance that is standard on most RF transceivers.

The 2118439-3 antenna has a gain of 4 dBi in the directional plane, which is ideal for applications that require both high gain with wide bandwidth in a small form factor. The antenna has a small profile, making it suitable for applications where space is constrained. The antenna also features a low noise figure, making it well suited to applications where low noise performance is essential.

In conclusion, the 2118439-3 antenna is a robust, wideband omnidirectional antenna that is suitable for Wi-Fi, WIMAX, GSM, and ISM communication systems, and any other applications that require a high gain with wide bandwidth in a small form factor. The antenna features a directional feed with a gain of 4 dBi in the directional plane, making it ideal for applications requiring both high gain and low noise performance.

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