Title :
Compact microwave remote recognition system with newly developed SSB modulation
Author :
Ohta, T. ; Nakano, H. ; Tokuda, M.
Author_Institution :
Sharp Corp., Tenri, Japan
Abstract :
A compact microwave remote recognition system (2.45 GHz) built with a new type of SSB (single-sideband) modulation is presented. The system is composed of an interrogator and a responder. The interrogator is able to read and write the data that are stored in the responder by remote control. The SSB modulation makes microwave circuits simpler. By using a microwave PLO, radio interference to neighboring systems is eliminated. This system is widely applicable to factory automation, personnel management, security management, etc. Key technologies to construct this system are described.<>
Keywords :
alarm systems; microwave links; modulation; telecontrol equipment; 2.45 GHz; SSB modulation; factory automation; interrogator; microwave PLO; microwave circuits; microwave remote recognition system; personnel management; remote control; responder; security management; single sideband modulation; Amplitude modulation; Amplitude shift keying; Demodulation; Detectors; Diodes; Frequency; Manufacturing automation; Personnel; Polarization; Writing;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99737
