Microwave equalizer suitable for aerospace applications

Details Microwave equalizer suitable for aerospace applications Microwave equalizer suitable for aerospace applications

1991-10-10

1993-08-10

Gensler, Paul

Wave transmission lines and networks

Coupling networks

Equalizers

333116, H01P 120

Patent

active

052352951

ABSTRACT:
A microwave equalizer is used in aerospace applications to correct the gain/frequency response of a microwave system, in particular in a given range of temperatures. To obtain a variation opposite to that of the microwave system by introducing absorption at the operating frequency, it comprises at least one microwave coupler one branch of which has an active device fitted at each of its two ends so that variation in the device parameters enables displacement of the absorption frequency and optionally power. The coupler(s) are coupled to a transmission line of the system and a control circuit.

REFERENCES:
patent: 2562281 (1951-07-01), Mumford
patent: 3382465 (1968-05-01), Robbins
patent: 3593225 (1971-07-01), Fisher
patent: 4013981 (1977-03-01), Shintani et al.
patent: 4216445 (1980-08-01), Abajian
1985 IEEE-MIT-S Int'l Microwave Symposium Digest; Jun. 4-6, 1985, St. Louis, Mo.; IEEE, N.Y., 1985; M. Mehdizadeh et al. "High Speed Varactor Tuned Notch Filer", pp. 531-534.
Microwave Journal, vol. 29, No. 10, Oct. 1986, pp. 133-139; G. C. Dipiazza et al. "50 W CW Diode-Tuned UHF Filter".
Electronics Letters, vol. 25, No. 18, Aug. 31, 1989, Stevenage, GB., pp. 1228-1229; C. Y. Chang, et al "Narrow Band Planar Microwave Active Filter".

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