Patent ID: 11956028
Assignee: HOSIDEN CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A non-contact transmission module comprising:
a transmission antenna module; and
a transmitter configured to transmit a digital signal containing high frequency components of a plurality of hundred MHz or higher,
wherein the transmission antenna module includes
a transmission antenna constituted by a metal plate, or by a conductor formed on an insulator, the transmission antenna being configured to be electromagnetically or magnetically coupled to a reception antenna of a non-contact reception module, wherein a distance between the transmitter and the transmission antenna is between a plurality of millimeters and 200 millimeters, and
at least one resistor connected in series between the transmission antenna and the transmitter, the at least one resistor having such a resistance value that the at least one resistor attenuates, over the entire frequency range, frequency components of the digital signal to be inputted into the at least one resistor so as to reduce or suppress ringing occurring in the digital signal,, wherein the transmission antenna module is configured to input the digital signal with the frequency components thereof attenuated over the entire frequency range, directly into the transmission antenna from the at least one resistor, and
wherein the resistance value of the at least one resistor is between several ohms and hundreds of ohms.