MX - BPM Multiplexed Beam Position Monitor

The Beam Position Monitor (BPM) is an electronics module with superior performance in a very small volume, On-board microstrip filters eliminate the need for costly tubular filters
GaAs switches provide superior button-to-button isolation and low insertion loss.

• On-board microstrip filters eliminate the need for costly tubular filters
• GaAs switches provide superior button-to-button isolation and low insertion loss
• On-board synthesized local oscillator eliminates the problem of external oscillator signal distribution with power splitters
• Automatic Gain Control range >90 dB provides optimum level for demodulator, independent of beam intensity, number of bunches
• GaAs switches provide superior button-to-button isolation and low insertion loss
• On-board synthesized local oscillator eliminates the problem of external oscillator signal distribution with power splitters
• Automatic Gain Control range >90 dB provides optimum level for demodulator, independent of beam intensity, number of bunches
• Phase-locked synchronous demodulation gives high linearity and noise suppression
• Button signal range -70 dBm to +5 dBm at selected harmonic, any phase error tolerated
• X and Y output +/- 10V
• Single button sampling option gives first turn / single turn capability
• RF-shielded chassis and accessories, see Accessories

Original concept patented by John W. Bittner and Richard W. Biscardi , U.S. Patent ,001,416 (1991) Bitter et al National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory. Our circuit is based on Jim Hinkson's design for the Advanced Light Source (ALS) at Lawrence Berkeley Laboratory.