ARA200A48

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High Frequency (RF) Relays have gained popularity over the years due to their ability to control high frequencies accurately without losses. The ARA200A48 is a prime example of this technology. This article will discuss the application and working principle behind this type of relay.

Introduction

The ARA200A48 is a high frequency (RF) relay that is used as a controlling interface for radio frequency signals. It has a maximum drive voltage of 48 Volts and a maximum frequency bandwidth of 200 MHz. It is also capable of providing fast switching times and a wide operating temperature range.-180°C to +150°C. This type of relay has been designed for control interfaces, signal switching, and broadband distribution amplifier applications.

Application Fields

The ARA200A48 is used in a multitude of applications. Here are some of the most popular ones:

• Broadcast & Telecommunications
• Automotive & Industrial Controls
• Measuring Instruments & Automated Test Equipment (ATE)
• Broadcast/Cable TV Transmitter Preamplifiers
• Telemetry & Surveillance
• Antenna Pattern Control
• Wireless Data Acquisition & Monitoring

Working Principle

The ARA200A48 operates on the principle of magnetically coupled relays. It utilizes a pair of RF coils that are magnetically coupled in order to switch signals between two isolated ports. When a signal is sent to the input port, it passes through the drive coil and induces an electro-magnetic field in the second coil. This electro-magnetic field causes the armature of the relay to move from its normally open position to its closed position, thus switching the signal to the output port. This type of relay also has the ability to be customized for specific requirements such as gain, isolation, and switching speed.

Advantages

The ARA200A48 offers several advantages such as low insertion loss, low heat dissipation, low drive power, and fast switching times. Additionally, it has a built-in high power reflection protection that prevents further signal losses and a high common-mode rejection ratio that minimizes noise. Furthermore, due to its high frequency rating, it has an extended product life-cycle and superior operational stability.

Conclusion

The ARA200A48 is a high frequency (RF) relay that is an excellent choice for controlling and switching RF signals in a variety of applications. It has a wide frequency bandwidth, a low insertion loss, fast switching times, and high power reflection protection. Additionally, due to its wide operating temperature range and robust design, it has a longer product life-cycle and superior operational stability.

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