Using surface transverse waves to guard your property

This paper presents a wireless security system which uses the unique feature of surface transverse waves (STW) to handle extremely high radio frequency (RF) power levels. It consists of small STW transmitters, hidden at any place on individual private properties and a STW based receiver located in the nearest police or security station. Each transmitter is activated upon an attempt of theft or braking in, generating a carrier frequency power of up to 2 W. The 1 GHz carrier is modulated with a digital code specific to the guarded property. As soon as a signal is transmitted the receiver tracks its frequency, locks onto it, detects it and feeds the code into a computer which retrieves the code specific information about the location of the affected property, alerting the police immediately. The receiver has a sensitivity of 500 nV and tracks transmitter frequencies over a bandwidth of 1.5 MHz compensating for fabrication tolerances and temperature induced frequency shifts. Reliable data transfer was established over a distance of 2 km in highly populated urban areas