TREK-ANT-201-GWL3E RF/IF and RFID

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RF antennas are widely used in various devices from radio communication systems to television broadcast signals but each type of antenna has its own specific design and function. The TREK-ANT-201-GWL3E is a wideband directional antenna that is constructed with multiple elements and can be used in a variety of applications from radio direction finding, Wi-Fi applications, multi-point communication, and point-to-point wireless communication systems. It is designed for a wide frequency range of 25 MHz to 3 GHz and has a very low VSWR or Voltage Standing Wave Ratio, making it a very reliable antenna for regional radio monitoring, wireless communication, and monitoring broadcast transmissions.

The TREK-ANT-201-GWL3E is composed of two antenna radiators, one large and one small, with the radiations field in between them. The radiators are connected through a feeder line and the antenna assembly is attached to a base plate. The base plate contains all the electrical connections needed to connect the antenna to the power source and the antenna assembly has an integrated pre-amplifier. The pre-amplifier provides additional gain and increased sensitivity while also helping to reduce the background noise. The antenna also includes a power supply and a duplexer filter to prevent interference and minimize the risk of signal fading.

In terms of performance, the TREK-ANT-201-GWL3E has excellent directivity performance with low VSWR. Field tests demonstrate that the antenna has great directivity with a gain of 5.8 dB, which is highly efficient for long distance communication applications. The antenna also offers good bandwidths of up to 28 MHz, with excellent robustness to temperature and other environmental factors. The antenna has a low axial ratio, meaning it produces a wavefront that is focused in direction, which improves performance even at longer distances.

As for the working principle, the antenna works by using two radiators, placed at a certain distance, to create a radiation field in between them. The feeder line connecting the two radiators carries the signal from the transmitter to the antenna, which creates a vertical or horizontally oriented electric field. The receiving antenna then picks up the signal from the electric field and converts it into a radio wave. The radio wave then propagates through the air and reaches its destination. This process is known as radio-frequency broadcasting and is used for radio communications and other broadcasting services.

To recap, the TREK-ANT-201-GWL3E is a wideband directional antenna designed for a frequency range of 25 MHz to 3 GHz. It is composed of two antenna radiators, one large and one small, connected through a feeder line and attached to a base plate. It offers excellent directivity performance, good bandwidths of up to 28 MHz, low VSWR, and a low axial ratio. It is also highly reliable for regional radio monitoring, wireless communication, and broadcast transmission monitoring.

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