DB0805A2017ASTR

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RF directional coupler is a kind of precisely calibrated device in radio-frequency engineering. It provides a portion of the signal’s power, usually 3 dB, and has the ability to measure the signal level and to control the output level, allowing both transmission and reception of signals. The DB0805A2017ASTR is a kind of RF directional coupler for applications in the 0.8 - 5 GHz frequency range.

The way the DB0805A2017ASTR works is relatively simple. A directional coupler is based on the principle of directional sensing. The coupler uses a pair of closely-spaced dipoles to sense the directions of the signals, with one being a transmission line that carries the signal and the other a receiving line that senses the signal’s magnitude. The two dipoles are usually formed by two concentric wires and the signal is sampled by a bridge circuit. As the signal is transmitted on one line, it also produces a signal on the other line, which has a different strength, depending on the direction of the signal. This signal is then passed through a directional coupler device, which produces two outputs, a forward output and a reverse output.

The DB0805A2017ASTR is designed to be used in military, telecom and various high power applications, where it can provide accurate signal measurements and control of the output level. It is able to measure both power in the forward and reverse directions and to separate the forward and reverse signals from each other. The device can also be used to monitor phase shift, isolation, frequency response, pulsed output and other parameters of the signal.

The DB0805A2017ASTR has many features that make it perform better than other directional couplers in this frequency range. For example, it has a high directivity of more than 30 dB, ensuring that the signals it produces are highly accurate. Additionally, it has an input power rating of up to 30W, making it ideal for high power applications. It also has a very low insertion loss of less than 0.2dB and high power handling capacity of up to 600W.

In conclusion, the DB0805A2017ASTR is an advanced directional coupler designed for the 0.8 - 5 GHz frequency range. It is designed for military, telecommunication and high power applications and has features that sets it apart from other directional couplers, such as its high directivity, low insertion loss and high power handling capacity.

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