Hello:
I am working on a project that involves possibly the use of microwaves (RF) to make a system that is basically a short range (under 40 feet) point-to-point link security style system. Very basic with a transmitter and receiver on each end. The idea is to be able to detect when this narrow RF beam is broken by an intrusion.
The signal between the transmitter and receiver should not be any wider than about 5 degrees, as to avoid interference with any material behind the receiver (ie signal bounces off metal etc). This seems to be the hardest part currently.
The reason we need to use microwaves or any non-light method is due to the fact that there may be particulates in the air that will block IR (or light-based beams) in between the Tx and Rx causing false results. We thought the use of RF would resolve this issue and only trip when a solid object is blocking the beam.
We are open to using pre-existing concepts or designs. Would someone happen to have any suggestions as to where to find even an antenna that can transmit in such a restricted beam?
Thanks
I am working on a project that involves possibly the use of microwaves (RF) to make a system that is basically a short range (under 40 feet) point-to-point link security style system. Very basic with a transmitter and receiver on each end. The idea is to be able to detect when this narrow RF beam is broken by an intrusion.
The signal between the transmitter and receiver should not be any wider than about 5 degrees, as to avoid interference with any material behind the receiver (ie signal bounces off metal etc). This seems to be the hardest part currently.
The reason we need to use microwaves or any non-light method is due to the fact that there may be particulates in the air that will block IR (or light-based beams) in between the Tx and Rx causing false results. We thought the use of RF would resolve this issue and only trip when a solid object is blocking the beam.
We are open to using pre-existing concepts or designs. Would someone happen to have any suggestions as to where to find even an antenna that can transmit in such a restricted beam?
Thanks