9270-12-00

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High Frequency (RF) Relays

High Frequency (RF) Relays allow components to be selectively connected and disconnected in a radio-frequency circuit. RF relays are used in telecommunications equipment and in the test and measurement of high-frequency components. Various types of RF Relays can be used in applications where very low frequencies up to several hundred gigahertz are used.

9270-12-00 Application Field and Working Principle

The 9270-12-00 relay is an RF relay designed for applications requiring very low insertion loss and high power handling. It is suitable for switching power levels up to 25 watts, and operates in a frequency range of 0.01 to 45 GHz. It has a single-pole double-throw (SPDT) configuration enabling two antenna sources to be switched independently.

The 9270-12-00 relay consists of two sets of concentric rings, one set of rings is used as two closed switch contacts, thus forming a hermetically sealed unit. A second set of rings is used as a pair of movable contacts, these contacts are connected to the relay coil and a drive circuit. The outer contact of each set is connected to the related antenna source and the inner contact is connected to the signal generator.

The switching between the two antenna sources is done by providing voltage to the relay coil. When the coil is energized, the inner set of contacts close and the antenna source is selected. When the coil is de-energized, the inner set of contacts open and the other antenna source is selected. Contacts can also be used to monitor the relay status.

The 9270-12-00 relay has a very low insertion loss of less than 0.2 dB, and can handle power of up to 25 watts. It has low voltage drive coil of 220 VAC and requires an input current of 0.15 A. Its high frequency performance makes it suitable for applications in any frequency range from 0.01 to 45 GHz. The relay is sealed and has very high reliability with life expectancy of up to 100,000 cycles.

The 9270-12-00 relay is used in applications such as satellite communication systems, base stations, radio and TV broadcast systems, high data rate cellular communication systems, and free-space optical systems. It can also be used in other applications where switching of two antenna sources is preferable. Its low insertion loss makes it an ideal choice for applications that require a high degree of precision. The relay is compatible with almost all current and future high frequency digital and analogue systems and is available in a variety of different designs.

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