Stripline diode phase shifter

Details Stripline diode phase shifter Stripline diode phase shifter

1979-11-14

1982-05-25

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

333 35, 333246, H01P 1185

Patent

active

043319424

ABSTRACT:
A stripline diode phase shifter in which plural hybrid couplers, one for each stage, are connected in series with one another with no bias blocking means disposed between the hybrid couplers to thereby eliminate much loss and unwanted reflections. At least one DC cut is coupled between each of hybrid couplers and a diode loading line. A PIN diode is coupled to a second terminal of the diode loading line. The diode loading line is constructed as a .lambda./4 impedance conversion line section and a diode loading line section coupled in series with the length of the diode loading line section being set such that the phase of reflection voltage from the diode is equal in magnitude but different in sign at the connecting point of the diode loading line section and the .lambda./4 impedance conversion line section.

REFERENCES:
patent: 3571765 (1971-03-01), Friedman
patent: 3996533 (1976-12-01), Lee
patent: 4088970 (1978-05-01), Fasset et al.
patent: 4205282 (1980-05-01), Gipprich
White-"Diode Phase Shifters for Array Antennas", IEEE Transactions on Microwave Theory and Techniques, vol. MTT-22, No. 6, Jun. 1974; pp. 658-674.

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