High Frequency (RF) Relays

1. What are High Frequency (RF) Relays?

High-frequency relays are electromagnetic switching elements designed specifically for radio frequency signal transmission. Operating in frequencies from 1 MHz to 40 GHz, they feature low insertion loss (typically <0.3 dB) and high isolation (≥80 dB at 10 GHz). They utilize ceramic or hermetic packaging to ensure signal integrity.

 

2. What are the Key Parameters of High Frequency (RF) Relays?

Frequency Response: Supports a wide frequency range of DC-40 GHz.

 

Switching Speed: Mechanical ≤ 10 ms, Solid-State ≤ 1 μs.

 

Durability: Mechanical contact lifespan reaches 1 × 10⁶ cycles (DC load).

 

Impedance Matching: 50 Ω/75 Ω standard configuration, VSWR ≤ 1.5.

 

3. What are the Innovation Trends of High Frequency (RF) Relays?

GaN Integration: Gallium nitride improves high-frequency current handling.

 

MEMS Technology: Microelectromechanical Systems enable miniaturization (size ≤ 3 × 2 × 1 mm).

 

Intelligent Control: Digital relays with integrated SPI/I²C interfaces.

 

4. What are the Typical Applications of High Frequency (RF) Relays?

5G base station antenna array switching;

 

Satellite communication system signal routing;

 

Medical MRI RF coil control;

 

Semiconductor test equipment RF matrix.