Programmable microwave modulator

Details Programmable microwave modulator Programmable microwave modulator

1976-06-01

1977-09-20

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 18D, 343 18E, G01S 956

Patent

active

040500705

ABSTRACT:
A programmable microwave modulator for controlling the amplitude of a micave signal versus time. A programmed driver generates a linear analog signal that has a predetermined amplitude pattern and time period. The linear analog signal from the programmable driver passes through a linearized current driver before inputting a PIN attenuator. The linearized current driver takes the antilogarithm of the linear analog signal, thus compensating for the logarithmic nonlinearity of the PIN attenuator. A radio frequency signal from a receiving antenna inputs the PIN attenuator and is attenuated as a function of the amplitude pattern of the linear analog signal. The PIN attenuator outputs the attenuated radio frequency signal.

REFERENCES:
patent: 3706994 (1972-12-01), Uhrig
patent: 3765018 (1973-10-01), Heard et al.
patent: 3792475 (1974-02-01), Smetana
patent: 3827027 (1974-07-01), Towson et al.
patent: 4005418 (1977-01-01), Gorwara

Affiliated with

Also associated with

Rating

Programmable microwave modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Programmable microwave modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable microwave modulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-674163