Logarithmic detector

Details Logarithmic detector Logarithmic detector

1994-08-23

1995-11-14

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

327350, 330302, 330310, G01S 7285

Patent

active

054670934

ABSTRACT:
A logarithmic detector having a first input line linked to the base of the first transistor, a second line linked to the base of the second transistor, a third input line linked to the bases of third and fourth transistors, a fourth input line linked to the bases of fifth and sixth transistors, a first output line linked to the collectors of the third and sixth transistors a second output line linked to the collectors of the fourth and fifth transistors and emitters of the third and fifth transistors being linked through the first and second impedances respectively to connect to the first transistor, the emitters of the fourth and sixth transistors being linked through third and fourth impedances to the collector of the second transistor and the emitters of the first and second transistors being linked through 5th and 6th impedances respectively to a current source connected to earth.

REFERENCES:
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patent: 5175880 (1992-12-01), Brown
patent: 5296761 (1994-03-01), Fotowat-Ahmady et al.
patent: 5339187 (1994-08-01), Nelson

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