Microwave phase shifter circuit

Details Microwave phase shifter circuit Microwave phase shifter circuit

1989-03-28

1990-10-30

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

333140, 333164, H01P 118

Patent

active

049671723

ABSTRACT:
Disclosed are microwave phase shifter circuits which achieve phase shifts of elementary values and of whole number multiples of the values. The phase shifter circuit is made by utilizing of strip lines arranged in candlestick form on one face of a substrate and a slot line arranged on the other face. The length of the branches of the candlestick differ by b/4, b being the wavelength, and the ends of the branches are short-circuited or not short-circuited by utilizing of diodes which can be forward biased or reverse biased.

REFERENCES:
patent: 4056792 (1977-11-01), Horwitz et al.
patent: 4195271 (1980-05-01), Schiek et al.
patent: 4301432 (1981-11-01), Carlson et al.
IEEE Transactions on Microwave Theory and Techniques, vol. 24, No. 4, Apr. 1976, pp. 231-233, New York, U.S.; B. Schiek, et al.: "An improved microstrip-to-microslot transition."
IEEE Transactions on Microwave Theory and Techniques, vol. MTT-22, No. 6, Jun. 1974, pp. 675-688; R. W. Burns et al.: "Low cost design techniques for semiconductor phase shifters."

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