Microwave circuit

Details Microwave circuit Microwave circuit

1990-06-05

1991-11-12

Laroche, Eugene R.

Wave transmission lines and networks

Coupling networks

With impedance matching

333263, 333204, 330286, H03H 738

Patent

active

050651170

ABSTRACT:
Disclosed is a microwave circuit suitable made into a monolithic microwave integrated circuit (MMIC). This microwave circuit includes a main line comprising a distributed constant line formed on a major surface of a substrate, and a stub connected in parallel with the main line in which lines the characteristics admittance varies discontinuously. Because of the discontinuous variation of the characteristic admittance of the stub, the phase of the characteristic admittance is changed, so that the stub length can be reduced.

REFERENCES:
patent: 4320353 (1982-03-01), Sasaki
patent: 4525680 (1985-06-01), Pan et al.
patent: 4618838 (1986-10-01), Kajiwara et al.
patent: 4754229 (1988-06-01), Kawakami et al.
"Narrow-Band Microstrip Bandpass Filters with Low Radiation Losses for Millimeter-Wave Applications", Pertti K. Ikalainen and George L. Matthaei, IEEE Transactions on Microwave Theory and Techniques, vol. 36, No. 3, Mar. 1988, pp. 514-521.

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