Distributed constant line coupling with a gap domain

Details Distributed constant line coupling with a gap domain Distributed constant line coupling with a gap domain

1997-06-17

1999-05-18

Lee, Benny

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333238, H01P5/00

Patent

active

059054158

ABSTRACT:
A coupling between distributed constant lines which are provided on an individual chip is made so that deterioration in their characteristics may not be caused by an inductance. A first microstrip line 42 and a second microstrip line 44 are provided on an underlayer metal plate 10, separately from each other with a gap domain 60 interposed therebetween. The first microstrip line 42 is composed of a first grounding conductor 12, a first dielectric substrate 14, and a first conductor line 46 which are stacked one after another. The second microstrip line 44 is composed of a second grounding conductor 13, a second dielectric substrate 16, and a second conductor line 48 which are stacked one after another. The first conductor line 46 is provided with a first gap 56 extending in the direction q perpendicular to the arrangement direction p, and the second conductor line 48 is provided with a second gap 58 extending in the direction q perpendicular to the arrangement direction p. When assuming that the wavelength corresponding to the central frequency of a desired frequency band is .lambda., the distance between the first gap 56 and the gap domain 60 along the arrangement direction p and the distance between the second gap 58 and the gap domain 60 along the arrangement direction p are, respectively, set at m .lambda./2 (where m is an integer).

REFERENCES:
Von Wolfram Schminke, "Dielectric Loaded Cavity Resonators with Stripline Coupling", Frequenz, 33 (1979) 2, pp. 37-39.
Microwave Semiconductor Circuits, Figure 6.13, pp. 139 by The Nikkan Kogyo Shimbun Ltd., 1993.

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