EXE821SFU

VSWR:	1.5
Applications:	--
Height (Max):	8.000" (203.20mm)
Mounting Type:	Connector Mount
Ingress Protection:	--
Termination:	Connector, SFU
Features:	--
Gain:	--
Return Loss:	--
Series:	EXE
Number of Bands:	1
Antenna Type:	Whip, Straight
Frequency Range:	821MHz ~ 902MHz
Frequency (Center/Band):	861MHz
Frequency Group:	UHF (300 MHz ~ 1 GHz)
Part Status:	Active
Packaging:	Bulk

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Introduction

RF antennas are an essential component of any wireless communication system. They are the interface between the physical environment and the airwaves. Thus, RF antennas must be carefully designed, optimized and implemented. The EXE821SFU is one such antenna, specifically designed for the 821-2GHz Frequency Band applications. It offers excellent performance, high reliability, and meets the most stringent industry requirements. In this article, we will discuss the EXE821SFU application field and working principle.

The EXE821SFU Application Field

The EXE821SFU is one of the most popular RF antennas used in 821-2GHz frequency band applications. The antenna\'s performance is ideal for applications such as GPS, ISM, Wireless Local Area Networks (WLANs), and cellular communications. The antenna is designed to be small in size, allowing it to be easily mounted in a variety of environments. Its wide gain range makes it suitable for both short- and long-distance communication links. In addition to its versatility, the EXE821SFU is also an excellent choice for applications requiring directional performance. The antenna\'s directional pattern reduces multipath fading, improves polarization isolation, and enhances antenna performance.

The EXE821SFU Working Principle

The EXE821SFU is a directional antenna that radiates electromagnetic energy in a single, focused direction in the 821-2GHz frequency band. The antenna uses a double-ridged waveguide feed to generate a focused beam. The double-ridged waveguide is coupled to the radiating element-a radiating structure consisting of several dipoles. The dipoles are arranged such that they combine to create a directional radiation pattern. As the waveguide is energized, the dipoles emit and absorb radiation, causing the waveguide to act as an amplifier of the electromagnetic field generated by the dipoles. The EXE821SFU radiates a broad-beam pattern over the entire 821-2GHz frequency. The antenna has a 75 degree half-power beamwidth from 89.1 degrees to 164.4 degrees. The antenna also exhibits a gain of 2.7 dBi in both the E-plane and the H-plane. The antenna has a VSWR (Voltage Standing Wave Ratio) of 2.4:1, making it a reliable, low-loss antenna.

Conclusion

The EXE821SFU is a high-performance, reliable antenna designed for applications in the 821-2GHz frequency band. The antenna\'s small size and directional performance make it ideal for short- and long-distance communication links such as GPS, ISM, WLANs, and cellular communications. The antenna has an impressive gain range and excellent VSWR ratio, making it an excellent choice for high-performance systems.

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