About Coaxial Switches

Coaxial Switches

Coaxial switches are electronic components that are used to control and direct the flow of signal between different coaxial cables. They typically consist of a mechanical switch mechanism connected to a coaxial connector on each end.These switches are commonly used in RF or microwave applications, where high frequencies need to be routed between different components or test equipment. They allow for rapid switching between multiple inputs and outputs, making them essential for complex systems and testing environments.One of the key features of coaxial switches is their ability to isolate different signal paths, preventing any interference or crosstalk between them. This ensures efficient and accurate signal routing, making them crucial in applications such as telecommunications, broadcasting, and satellite communications.Coaxial switches come in various forms, including single, double, and multi-pole configurations, each with different connectivity options and switch mechanisms. They are essential components in today's modern electronic systems, providing reliable and efficient signal management in a wide range of applications.

Coaxial switches are specialized electromechanical or solid-state switches designed to route high-frequency radio frequency (RF) signals through coaxial transmission paths. These switches allow signals to be directed between different signal paths with minimal loss, reflection, or interference, making them essential components in RF and microwave systems.

What Are Coaxial Switches?

A coaxial switch controls the flow of RF signals by connecting or disconnecting coaxial ports. It functions similarly to a mechanical relay but is specifically engineered for high-frequency signal integrity. These switches are often used in testing systems, communication networks, radar, satellite systems, and broadcasting equipment where precision and low signal distortion are crucial.

Key Features

  • High Frequency Range: Operates typically from DC to 40 GHz or more, depending on design.

  • Low Insertion Loss: Maintains signal strength with minimal power loss across connections.

  • High Isolation: Prevents signal leakage between ports when disconnected.

  • VSWR (Voltage Standing Wave Ratio): Low VSWR values (close to 1:1) ensure signal efficiency.

  • Multiple Ports: Available in configurations like SPDT (Single-Pole Double-Throw), SP3T, SP4T, SP6T, and more.

  • Actuation Methods: Can be manual, remotely controlled via TTL/USB interfaces, or solenoid-driven.

Types of Coaxial Switches

  1. Electromechanical Coaxial Switches:

    • Use moving mechanical contacts for switching.

    • High power handling capacity.

    • Durable and reliable, suitable for lab and field applications.

    • Longer switching time (in milliseconds).

  2. Solid-State Coaxial Switches:

    • Use semiconductor components (e.g., PIN diodes).

    • Faster switching speeds (in nanoseconds or microseconds).

    • No moving parts, hence longer lifespan.

    • Ideal for automated and high-speed applications.

  3. Latching and Non-Latching Switches:

    • Latching: Remains in its last position even after power is removed.

    • Non-Latching: Returns to a default state when power is off.

Applications

Coaxial switches are widely used in industries and systems requiring reliable RF signal routing, including:

  • RF and Microwave Test Systems: For automated signal path switching.

  • Communication Systems: Satellite, cellular, and radio base stations.

  • Military and Aerospace: Radar, surveillance, and secure communication systems.

  • Broadcast and Media: Signal routing for television and radio transmitters.

  • Medical Imaging: MRI and other diagnostics requiring precise RF control.

Advantages

  • Signal Integrity: Maintains excellent RF performance with low insertion loss and high isolation.

  • Flexibility: Supports multiple signal path configurations.

  • Space Efficiency: Multi-throw designs reduce the need for complex cable arrangements.

  • Durability: Designed to withstand frequent switching cycles and harsh environments.

Coaxial switches are indispensable components in high-frequency systems where signal routing with minimal distortion is critical. Whether you’re building an RF testing bench or designing advanced communication hardware, choosing the right coaxial switch ensures reliable performance and signal clarity. With various types and configurations available, they offer flexible solutions for a wide range of RF applications.

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CCR-53S30-T


RF Switch Commercial - 50 Ohms - 12VDC Coil - DC-26.5GHz - Failsafe - SPDT - SMA-Female - Opt: TTL-Drivers+Diodes
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CR-53S10


Coaxial Switches SWITCH SPDT 26GHZ SMA FS Elite
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Coaxial Switches SPDT 28V Latch SMA TTL driver w/diode
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USD 217.2188

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Coaxial Switches SWITCH SPDT 3GHZ SMB FS
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Coaxial Switches SPDT 12V Latch SMA TTL driver w/diode
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USD 237.666

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Spdt18 GHz12 VDCSma1.50.5 Db60 Db
CR-38S13C


RF Switch Elite DC-22GHz SMA Failsafe SP3T Indicator
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USD 821.9951

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CCS-37S80


RF Switch Commercial DC-18GHz SMA Latching Transfer
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Coaxial Switches Square FLNG R573&R574 RAMSES series, 63mm for SP8 positions Miniature con type
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Coaxial Switches SPDT Ramses SMA 3GHz Failsafe Indicators 12Vdc Diodes Pins Terminals
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CCR-40K30-M


Coaxial Switches Mini DC-40 GHz 12VDC FS SPDT COAX SW, F
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CCRS-33S1C


RF Switch Commercial - 50 Ohms - 28VDC Coil - DC-18GHz - Failsafe - DP3T - SMA-Female - Opt: Indicator-Contacts
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Coaxial Switches Transfer Switch
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Coaxial Switches SPQ18 La 6 Nsol
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Coaxial Switches
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CCR-33S90


Coaxial Switches Mini Commercial Latching SPDT Coaxial Switch, DC-18GHz, SMA Female, 24VDC, Std Contacts, TTL Drivers with Diodes
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R599906000


Coaxial Switches Printed circuit board Interface R573 & R574 RAMSES series for SP3 to 6 positions
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