Radio frequency data communication band pass filter

Details Radio frequency data communication band pass filter Radio frequency data communication band pass filter

1989-05-12

1991-08-20

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

Frequency or phase modulation

455339, 333168, H04B 700, H03H 712

Patent

active

050420852

ABSTRACT:
The RF data communication band pass filter is a fixed device that filters both RF multi-level data signals and binary-level data signals. The RF data communication band pass filter comprises a low pass filtering means having a corner frequency of approximately 2900 Hertz and as high pass filtering means of approximately 340 Hertz. By using precision components the overall group delay envelope is such that both multi-level RF data signals and binary-level RF data signals are adequately filtered without substantial harmonic distortion or spectral distortion. In addition, the communication band pass filter meets the strictest of international RF data communication requirements.

REFERENCES:
patent: 4156867 (1989-05-01), Bench et al.
patent: 4280020 (1981-07-01), Schmuir
patent: 4414688 (1983-11-01), Hendriks et al.
patent: 4437075 (1984-03-01), Darmouni
patent: 4481489 (1984-11-01), Kurley
patent: 4581750 (1986-04-01), Dreleman
patent: 4646305 (1987-02-01), Tretter et al.
patent: 4714905 (1987-12-01), Bernstein et al.

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