Process for adjusting the impedance of a microwave conductor usi

Details Process for adjusting the impedance of a microwave conductor usi Process for adjusting the impedance of a microwave conductor usi

1992-10-23

1995-02-07

Chaudhuri, Olik

Fishing, trapping, and vermin destroying

437209, H01L 2158, H01L 2160

Patent

active

053875478

ABSTRACT:
A method for providing local matching elements for adjusting the characteristic impedance of local transmission line segments to more closely match the input or output impedance of the particular devices to which they couple. The method includes the step of providing a conductive bridge over the active lead of the transmission line, thereby lowering its characteristic impedance. The method can be applied to narrow transmission line segments needed to make contact to small active devices and/or MMIC's and which otherwise exhibit a substantial impedance mismatch with the small elements.

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An article entitled "The Effect of Air Bridge Height on the Propagation Characteristics of Microstrip" by Marc E. Goldfarb and Vijai K. Tripathi, IEEE Microwave and Guided Wave Letters, vol. 1, No. 10, Oct. 1991, pp. 273,274.

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