Smart meter RF coupler provides 10kV electrical isolation

August 23, 2012 // By Julien Happich
The RF Savvy Series, patent pending, Nona-band radio frequency (RF) coupler from Alpha Micro Wireless offers 10kV of electrical isolation to enable safe routing of the RF signal from the network interface card (NIC) or wireless modem to a remote external antenna via a bulk head RF connection in the meter base.

Unlike other inefficient RF coupling schemes and isolator solutions on the market, the RF Savvy series Nona-band RF Coupler offers an ultra-low loss (less than 0.5dB at 915MHz), extremely high electrical isolation and operates universally over nine frequency bands. RF input and output terminations are via gold plated 50 Ohm MMCX jack connectors for rugged and easy installation. The RF Coupler has been designed with a low profile (1.0mm) generic form factor suitable for use within the enclosure of most residential and commercial/industrial electric utility meters.

The device can be retro-fitted to most utility meters or tailored for a custom fit to specific OEM applications. Automated metering infrastructure (AMI) wireless system integrators and utility meter manufacturers can choose to retro-fit a generic, 45x45x1mm version of this low-profile coupler into their SMART metering applications.

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