High frequency circuit device with stripline having an adjustabl

Details High frequency circuit device with stripline having an adjustabl High frequency circuit device with stripline having an adjustabl

1996-06-26

1998-01-13

Pascal, Robert

Oscillators

Solid state active element oscillator

Significant distributed parameter resonator

331117V, 331117D, 331 96, 333235, 333205, 333164, 333139, H03B 518, H01P 1185

Patent

active

057083975

ABSTRACT:
A high-frequency circuit device includes a varactor diode having a first terminal and a second terminal, a first strip line connected to the first terminal of the varactor diode, a voltage being applied to the varactor diode via the first terminal, a second strip line having a first end connected to the second terminal of the varactor diode, and a second open end. The second strip line has a length so as to obtain an equivalent strip line length taking into capacitances of the varactor diode and the second strip line. The equivalent strip line length determines a characteristic of the high-frequency circuit device.

REFERENCES:
patent: 3422378 (1969-01-01), La Rosa
patent: 4195296 (1980-03-01), Williams
patent: 4507629 (1985-03-01), Frank
patent: 4859972 (1989-08-01), Franke et al.
"Electronically-Variable Phase Shifters Utilizing Variable Capacitance Diodes," by Hardin et al., Proc. of I.R.E., May, 1960, pp. 944-945.
Patent Abstracts of Japan, E-780 Jun. 29, 1989, vol. 13/No. 285, Application No. 62-227304, "Variable Phase Shifter".
IEEE Transactions On Microwave Theory and Techniques, vol. MTT-33, No. 7, Jul. 1985, Atwater, Harry A. "Circuit Design of the Loaded-Line Phase Shifter".
Translation of Office Action issued in counterpart German Application, P4401005.2-35, on Mar. 24, 1995.

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