Antenna and driving circuit for transmitting and receiving signa

Details Antenna and driving circuit for transmitting and receiving signa Antenna and driving circuit for transmitting and receiving signa

1993-12-28

1995-05-30

Horabik, Michael

Communications: electrical

Continuously variable indicating

With particular transmitter

34082554, 343856, G08C 1906

Patent

active

054205794

ABSTRACT:
A system for receiving a signal from a passive transponder includes a probe which transmits an exciter signal having a first frequency and receives a signal from the transponder having a second frequency. The probe includes an antenna for transmitting the exciter signal. The antenna includes a second coil and a primary coil wound about the second coil. The second coil is tuned to resonate at the first frequency. A receiver is provided for driving the primary coil at the first frequency.

REFERENCES:
patent: 4630044 (1986-12-01), Polzer
patent: 4730188 (1988-03-01), Milheiser
patent: 4996481 (1991-02-01), Ackerman et al.
Cross, A. F., "Time-code Receiver Clock --3", Wireless World, Apr. 1978, pp. 56-58.

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