EXH155SFK

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RF Antennas

EXH155SFK is one of the commonly used antennas in the field of radiofrequency (RF) technology. It is a type of log-periodic dipole array (LPDA), which is designed to provide a wide range of coverage from 890 MHz to 6 GHz. The antenna has an excellent performance of gain, bandwidth and radiation patterns. It can be used in various applications, such as military, public safety, cellular base station, satellite communication, WLAN/Wi-Fi and so on.

Application Field

EXH155SFK has a wide range of applications in RF technology. It is mainly used in various military, public safety, and commercial communication systems. In military systems, it can be used in mobile navigation and communication, radar antenna, MANETs, military base, and air defense systems. In public safety applications, it is used for public safety communication systems, such as first-responder, fire stations, and police departments. Besides, EXH155SFK can also be applied in commercial communication systems, such as VHF radio systems, cellular base stations, GSM, CDMA, WCDMA, and satellite communication systems.

Working Principle

EXH155SFK antenna consists of several dipole elements which are arranged in a log-periodic array. These dipole elements are constantly fed with power through the distributed power lines. The directions and lengths of the dipoles are designed such that they produce good gain and directivity over a wide coverage area. A log-periodic array is an array whose radiation patterns (gain and directivity) can be kept constant even when the frequency is varied over a wide range. This is achieved by designing the elements of the array such that the lengths and directions of the elements are in units of half-wavelengths. Moreover, the antenna also has a balanced output, which helps to minimize common-mode signals, interferences, and noises.

Special Design Aspects

In addition to the features mentioned above, EXH155SFK also has some other special design aspects, which make it suitable for various applications. Firstly, the antenna is designed to be highly durable, as it is waterproof and dustproof. Secondly, it is also designed with a low profile, so it can be conveniently installed in different locations. Thirdly, the antenna has very low losses, which allows it to maintain good performance even in demanding applications. Finally, the combination of low-loss, gain, and directivity makes EXH155SFK an ideal choice for long-distance communication.

Conclusion

In conclusion, EXH155SFK is a high-performance antenna designed for a wide range of radio frequency applications. It has a wide range of applications in military, public safety, and commercial communication systems. The antenna has several special design aspects, such as waterproof and dustproof construction and low profile, which make it suitable for various applications. Furthermore, its combination of low-loss, gain, directivity, and wide coverage range makes it an ideal choice for long-distance communication.

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