QWFT120

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RF antennas are used in several applications where transmission or reception of radio frequency signals are needed. One such application is the QWFT120. This type of antenna is used for reliable communications between stationary and mobile stations over the frequencies of 120–160 MHz.

The QWFT120 is a wide-band, omnidirectional antenna which is suitable for military, commercial and civil applications. It is constructed with robust materials for reliable operation even in the most hostile environments. The QWFT120 antenna is designed to provide an effective gain of around 3 dB with minimal feedline loss and side lobes. It also has low return loss and excellent impedance match.

The main working principle of the QWFT120 antenna is based on inductive coupling. The antenna is composed of two parts: the antenna element and the feedline. The antenna element is made of a coil of wire, generally in the form of a loop, which is inductively coupled to the feedline. The signal fed to the antenna element is then radiated by the antenna, providing a directional signal to the receiver. The signal is also slightly attenuated by the feedline, and depending on its impedance, the signal may also be shaped before reaching the receiver.

The QWFT120 antenna is easy to install and highly reliable. It is typically used in applications such as point-to-point communication, remote sensor monitoring, railway signaling, wireless access, and military communication. It is also well-suited for use in distributed antenna systems, where multiple antennas are connected to the same radio access point. The QWFT120 is also available in clamshell packaging, which provides accurate tracking and orientation control for mobile applications.

The QWFT120 antenna is a low VSWR, wide-band antenna that offers good coverage in both the vertical and horizontal polarizations. It also offers good antenna efficiency, and has low wind drag, making it suitable for applications where wind loading is a concern. The QWFT120 antenna is designed to have minimal weight, allowing for easy installation and less cable clutter.

In summary, the QWFT120 antenna is a reliable and versatile antenna solution for applications that require the transmission and reception of radio-frequency signals. It is suited for both stationary and mobile applications and can be used in distributed antenna systems. The QWFT120 offers a wide bandwidth and low VSWR, as well as good antenna efficiency and low wind drag. It is designed for easy installation and minimal cable clutter. This makes the QWFT120 an ideal choice for applications requiring reliable and effective signal transmission and reception.

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