DocumentCode
2120838
Title
A Wireless Automatic Passenger Gate
Author
Konno, Kenichi ; Kojima, Takayo
Author_Institution
Antenna Giken Co., Ltd., 4-72 Miyagayato, Ohmiya, Saitama 330, JAPAN
Volume
2
fYear
1994
fDate
5-9 Sept. 1994
Firstpage
1036
Lastpage
1041
Abstract
A 2.45 GHz wireless automatic passenger gate system has been developed for contact-free type train-station automatic passenger gate system. The system consists of a transmitter-receiver equipment and non-contact wireless IC cards and uses four key technologies: a circularly polarized shaped beam three patch antenna for transmitter, a small size dual port slot antenna for the card, a simple modulation/demodulation scheme for stable data transmission, and a co-channel allocation system for operation with multiple gates. Operation of this wireless card system, with its newly developed technologies, has been sucssesfuly demonstrated.
Keywords
Antenna measurements; Data communication; Demodulation; Patch antennas; Phase detection; Phase modulation; Polarization; Slot antennas; Transmitters; Transmitting antennas;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1994. 24th European
Conference_Location
Cannes, France
Type
conf
DOI
10.1109/EUMA.1994.337349
Filename
4138395
Link To Document