Active vs. Passive RFID Technology. In passive RFID systems, an RFID reader transmits an energy field that “wakes up” the tag and provides power for the tag to respond to the reader.

Levity Series active antennas have a 45- × 45- × 10-mm wideband, dual-stacked patch design. A dual-feed, low-noise amplifier provides a 28- to 29 dB gain, and a filter is in the mix, too. The maximum ...

Levity series active antennas utilize a 45 mm x 45 mm x 10 mm wide-band, dual-stacked patch design combined with a dual-feed, low noise amplifier (LNA) with 28-29 dB gain, and filter. The maximum ...

Other antennas include the HP24510A L1/L2/L-Band and HP54510A L1/L5/L-Band stacked-patch passive components, and the TFM.120A surface-mount front-end module (FEM). The TFM.120A covers the full ...

Other antennas include the HP24510A L1/L2/L-Band and HP54510A L1/L5/L-Band stacked-patch passive components, and the TFM.120A surface-mount front-end module (FEM). The TFM.120A covers the full ...

My device is USRP X310(two TwinRX-80MHz daughterboards), active GNSS antenna(3~5 V), bias-T for power the antenna. Testbed Testing. I use another USRP X310 with passive GPS antenna to transmit sine ...

By Agnieszka Gautier. Some of the greatest scientific discoveries have happened by chance or when things do not go to plan. One such example of scientists turning potential disaster into opportunity ...

Looking for the best RFID asset tracking systems in 2025? Discover top features, real-world use cases, and how this tech enhances management efficiency.

The passive multi-feed multi-beam antenna is based on the waveguide beam forming system, which usually consists of 2 reflector antennas, and the edge beam in a large coverage area can be ...

Semi-passive tags use a battery to run the chip’s circuitry, but communicate by drawing power from the reader. Active and semi-passive tags are useful for tracking high-value goods that need to be ...

If your device isn’t ready to use active GPS antennas, [Tom] ... like soldering an improved passive antenna in place of the chip antenna currently being used. Then, ...