Microwave and millimeter wave switched-line type phase shifter i

Details Microwave and millimeter wave switched-line type phase shifter i Microwave and millimeter wave switched-line type phase shifter i

1985-01-28

1986-10-07

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

333104, H01P 118

Patent

active

046161961

ABSTRACT:
A switched-line type phase shifter employs a reference, uniform transmission line and a coupled exponential transmission line. The coupled exponential line network provides a different phase shift but provides a phase shift versus frequency characteristic that over a wide frequency band matches the reference line.

REFERENCES:
patent: 3471808 (1969-10-01), Felsenheld
patent: 3568097 (1971-03-01), Hyltin
patent: 3568105 (1971-03-01), Felsenheld
patent: 4195271 (1980-03-01), Schiek et al.
patent: 4238745 (1980-12-01), Schwarzmann
patent: 4254383 (1981-03-01), Wolfe
patent: 4383227 (1983-05-01), de Ronde
Schick, Burkhard & Kohler, Jurgen; "A Method of Broad Band Matching of Microstrip Differential Phase Shifters"; IEEE Transaction on MTT; vol. MTT 25, No. 8, 8/1977, pp. 666-672.
"An Octave-Band Switched Line Microstrip 3-b Diode Phase Shifter", R. P. Coats, IEEE Transactions on Microwave Theory and Techniques, vol. MTT-21, Jul. 1973.
"Broadband Diode Phase Shifter", R. V. Graver, IEEE Transactions on Microwave and Theory and Techniques, vol. MTT-20, May 1972, pp. 314-323.
"Coupled Non-Uniform Transmission Line and Its Applications", S. Yamamoto et al., IEEE Transactions on Microwave Theory and Techniques, vol. MTT-15, Apr. 1967, pp. 220-231.

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