Traveling wave type transversal equalizer

Details Traveling wave type transversal equalizer Traveling wave type transversal equalizer

1990-05-29

1991-10-08

Mullins, James B.

Amplifiers

With distributed parameter-type coupling means

Distributed amplifier

330149, 330277, 333 18, 333 28R, 359161, 359189, H03F 360

Patent

active

050557955

ABSTRACT:
A transversal equalizer is realized by employing variable gain and delay in the amplification branches of a traveling wave amplifier. Specifically, by adjusting the gain and delay in each branch, the traveling wave type transversal equalizer may be adjusted to having a complementary frequency response in order to compensate for linear channel gain and phase ripples. This approach permits the transversal equalizer to be designed without the use of resistive splitter and combiner networks and, therefore, without the use of high gain amplifiers. Without such amplifiers, splitters and combiners, the smaller physical size, which is afforded thereby, allows the transversal equalizer to be easily assembled as a hybrid integrated circuit.

REFERENCES:
patent: 4291286 (1981-09-01), Wagner
patent: 4486719 (1984-12-01), Ayasli
patent: 4668920 (1987-05-01), Jones
patent: 4733195 (1988-03-01), Tserng et al.
patent: 4845440 (1989-07-01), Aitchison
patent: 4876516 (1989-10-01), Dougherty
Lucky, R. W., "Signal Filtering with the Transversal Equalizer", IEEE Proc. 7th Allerton Conf. on Circuit System Theory, 1969, pp. 792-799.

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